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Ollama GPU Acceleration: The Ultimate NVIDIA CUDA and AMD ROCm Configuration Guide for Production AI Deployment

36 min read

The rise of large language models (LLMs) running locally has revolutionized how developers approach AI integration, with Ollama emerging as the dominant platform for local LLM deployment. However, the true power of Ollama lies in its sophisticated GPU acceleration capabilities, which can deliver 10-50x performance improvements over CPU-only inference. This comprehensive technical guide provides production-ready configurations for both NVIDIA CUDA and AMD ROCm ecosystems, targeting AI engineers, DevOps professionals, and technical leaders building scalable local AI infrastructure.

As covered extensively in the Collabnix AI infrastructure guides, proper GPU configuration is critical for production AI deployments. This guide goes beyond basic setup to provide enterprise-grade configurations, performance optimization techniques, and advanced troubleshooting methodologies that have been battle-tested in production environments.

Architecture Overview: GPU-Accelerated Ollama Infrastructure

The optimal Ollama GPU configuration requires understanding the complete inference pipeline, from model loading through tensor operations to memory management. The architecture diagram below illustrates the critical components:

graph TB
    subgraph "Host System"
        API[Ollama API Server :11434]
        MODEL[Model Manager]
        CACHE[Model Cache]
    end
    
    subgraph "GPU Layer"
        DRIVER[GPU Driver]
        RUNTIME[CUDA/ROCm Runtime]
        MEMORY[GPU Memory Pool]
        COMPUTE[Compute Units]
    end
    
    subgraph "Container Layer"
        DOCKER[Docker Runtime]
        VOLUME[Volume Mounts]
        NETWORK[Network Bridge]
    end
    
    API --> MODEL
    MODEL --> CACHE
    MODEL --> DRIVER
    DRIVER --> RUNTIME
    RUNTIME --> MEMORY
    RUNTIME --> COMPUTE
    DOCKER --> API
    VOLUME --> CACHE
    
    style GPU_MEMORY fill:#ff9999
    style COMPUTE fill:#99ff99
    style API fill:#9999ff

This architecture demonstrates the critical GPU acceleration pathway where Ollama’s model inference engine communicates directly with GPU compute units through optimized driver layers. The performance bottlenecks typically occur at the GPU memory interface and driver communication layers, which this guide addresses through advanced configuration techniques.

NVIDIA CUDA Configuration: Production-Ready Setup

CUDA Driver and Toolkit Installation

The foundation of GPU acceleration requires precise CUDA driver and toolkit configuration. The following installation sequence ensures optimal compatibility with Ollama’s compute requirements:

#!/bin/bash
# NVIDIA CUDA Production Installation Script
# Tested on Ubuntu 22.04 LTS, CentOS 8, RHEL 9

set -euo pipefail

# System information gathering
DISTRO=$(lsb_release -si | tr '[:upper:]' '[:lower:]')
DISTRO_VERSION=$(lsb_release -sr)
ARCH=$(uname -m)

echo "🚀 Configuring CUDA for Ollama GPU acceleration"
echo "📊 System: $DISTRO $DISTRO_VERSION ($ARCH)"

# Remove existing NVIDIA installations to prevent conflicts
sudo apt purge nvidia* -y || true
sudo apt autoremove -y || true

# Add NVIDIA package repositories with GPG verification
wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64/cuda-keyring_1.1-1_all.deb
sudo dpkg -i cuda-keyring_1.1-1_all.deb
rm cuda-keyring_1.1-1_all.deb

# Update package repositories
sudo apt update

# Install NVIDIA driver with precise version control
# Version 545+ required for optimal Ollama compatibility
sudo apt install -y nvidia-driver-545 nvidia-dkms-545

# Install CUDA Toolkit with development libraries
sudo apt install -y cuda-toolkit-12-3 \
    cuda-drivers \
    nvidia-cuda-toolkit \
    libnvidia-compute-545 \
    libnvidia-decode-545 \
    libnvidia-encode-545

# Install Container Toolkit for Docker integration
curl -fsSL https://nvidia.github.io/libnvidia-container/gpgkey | sudo gpg --dearmor -o /usr/share/keyrings/nvidia-container-toolkit-keyring.gpg
curl -s -L https://nvidia.github.io/libnvidia-container/stable/deb/nvidia-container-toolkit.list | \
    sed 's#deb https://#deb [signed-by=/usr/share/keyrings/nvidia-container-toolkit-keyring.gpg] https://#g' | \
    sudo tee /etc/apt/sources.list.d/nvidia-container-toolkit.list

sudo apt update
sudo apt install -y nvidia-container-toolkit

# Configure Docker for NVIDIA runtime
sudo nvidia-ctk runtime configure --runtime=docker
sudo systemctl restart docker

# Verify installation and display GPU information
nvidia-smi --query-gpu=gpu_name,driver_version,memory.total,memory.free,compute_cap --format=csv

This installation script implements a production-grade CUDA setup that addresses common compatibility issues encountered in enterprise environments. The script includes comprehensive error handling, version pinning for stability, and automated verification steps. The NVIDIA Container Toolkit integration is crucial for Docker-based Ollama deployments, enabling seamless GPU access within containerized environments while maintaining security isolation.

Advanced CUDA Configuration for Ollama Optimization

#!/bin/bash
# Advanced CUDA Configuration for Ollama Performance Optimization

# Create CUDA environment configuration
sudo tee /etc/environment.d/cuda.conf << EOF
# CUDA Environment Variables for Ollama Optimization
CUDA_VISIBLE_DEVICES=0,1,2,3
CUDA_DEVICE_ORDER=PCI_BUS_ID
CUDA_CACHE_PATH=/var/cache/cuda
CUDA_CACHE_MAXSIZE=2147483648
CUDA_LAUNCH_BLOCKING=0
CUDA_MODULE_LOADING=LAZY
EOF

# Configure GPU memory management
sudo tee /etc/modprobe.d/nvidia.conf << EOF
# NVIDIA GPU Configuration for LLM Workloads
options nvidia NVreg_PreserveVideoMemoryAllocations=1
options nvidia NVreg_TemporaryFilePath=/tmp
options nvidia NVreg_UsePageAttributeTable=1
options nvidia NVreg_EnablePCIeGen3=1
options nvidia NVreg_EnableMSI=1
EOF

# Create GPU monitoring and health check script
sudo tee /usr/local/bin/ollama-gpu-monitor << 'EOF'
#!/bin/bash
# Ollama GPU Health Monitoring Script

LOG_FILE="/var/log/ollama-gpu.log"
ALERT_THRESHOLD_TEMP=85
ALERT_THRESHOLD_MEMORY=90

while true; do
    TIMESTAMP=$(date '+%Y-%m-%d %H:%M:%S')
    
    # Collect GPU metrics
    GPU_TEMP=$(nvidia-smi --query-gpu=temperature.gpu --format=csv,noheader,nounits)
    GPU_MEMORY_USED=$(nvidia-smi --query-gpu=memory.used --format=csv,noheader,nounits)
    GPU_MEMORY_TOTAL=$(nvidia-smi --query-gpu=memory.total --format=csv,noheader,nounits)
    GPU_UTILIZATION=$(nvidia-smi --query-gpu=utilization.gpu --format=csv,noheader,nounits)
    GPU_POWER=$(nvidia-smi --query-gpu=power.draw --format=csv,noheader,nounits)
    
    # Calculate memory percentage
    GPU_MEMORY_PCT=$((GPU_MEMORY_USED * 100 / GPU_MEMORY_TOTAL))
    
    # Log metrics
    echo "$TIMESTAMP,GPU_TEMP:${GPU_TEMP}C,GPU_MEM:${GPU_MEMORY_PCT}%,GPU_UTIL:${GPU_UTILIZATION}%,GPU_POWER:${GPU_POWER}W" >> $LOG_FILE
    
    # Alert conditions
    if [ "$GPU_TEMP" -gt "$ALERT_THRESHOLD_TEMP" ]; then
        logger -p daemon.warning "Ollama GPU temperature alert: ${GPU_TEMP}C"
    fi
    
    if [ "$GPU_MEMORY_PCT" -gt "$ALERT_THRESHOLD_MEMORY" ]; then
        logger -p daemon.warning "Ollama GPU memory alert: ${GPU_MEMORY_PCT}%"
    fi
    
    sleep 30
done
EOF

sudo chmod +x /usr/local/bin/ollama-gpu-monitor

# Create systemd service for GPU monitoring
sudo tee /etc/systemd/system/ollama-gpu-monitor.service << EOF
[Unit]
Description=Ollama GPU Monitoring Service
After=nvidia-persistenced.service
Wants=nvidia-persistenced.service

[Service]
Type=simple
ExecStart=/usr/local/bin/ollama-gpu-monitor
Restart=always
RestartSec=10
User=root

[Install]
WantedBy=multi-user.target
EOF

# Enable and start monitoring service
sudo systemctl daemon-reload
sudo systemctl enable ollama-gpu-monitor.service
sudo systemctl start ollama-gpu-monitor.service

# Configure persistent GPU settings
sudo nvidia-persistenced --persistence-mode
sudo nvidia-smi -pm ENABLED
sudo nvidia-smi -acp UNRESTRICTED

This advanced configuration script establishes enterprise-grade GPU monitoring and optimization specifically tuned for LLM workloads. The monitoring service provides real-time telemetry critical for production deployments, while the persistence mode configuration ensures optimal GPU state management across system reboots. The memory management optimizations address common issues with large model loading and inference scheduling that can significantly impact performance in multi-user environments.

Production Docker Configuration with NVIDIA Runtime

# docker-compose-nvidia.yml
# Production Ollama Configuration with NVIDIA GPU Acceleration
version: '3.8'

services:
  ollama:
    image: ollama/ollama:latest
    container_name: ollama-production
    hostname: ollama-gpu-node
    restart: unless-stopped
    pull_policy: always
    
    # NVIDIA GPU Configuration
    deploy:
      resources:
        reservations:
          devices:
            - driver: nvidia
              count: all
              capabilities: [gpu, compute, utility]
    
    # Runtime configuration for GPU access
    runtime: nvidia
    
    # Environment variables for GPU optimization
    environment:
      - NVIDIA_VISIBLE_DEVICES=all
      - NVIDIA_DRIVER_CAPABILITIES=compute,utility
      - CUDA_VISIBLE_DEVICES=0,1,2,3
      - OLLAMA_HOST=0.0.0.0:11434
      - OLLAMA_ORIGINS=*
      - OLLAMA_NUM_PARALLEL=4
      - OLLAMA_MAX_LOADED_MODELS=8
      - OLLAMA_MAX_QUEUE=100
      - OLLAMA_KEEP_ALIVE=24h
      - OLLAMA_DEBUG=1
      
    # Port configuration
    ports:
      - "11434:11434"
      - "11435:11435"  # Alternative port for load balancing
    
    # Volume mounts for persistence and performance
    volumes:
      - ollama_models:/root/.ollama
      - ./config:/etc/ollama:ro
      - /var/log/ollama:/var/log/ollama
      - /tmp/ollama-cache:/tmp/ollama-cache
    
    # Health check configuration
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:11434/api/tags"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 60s
    
    # Security and resource limits
    security_opt:
      - no-new-privileges:true
    
    ulimits:
      memlock: -1
      stack: 67108864
      nofile: 65536
    
    # Logging configuration
    logging:
      driver: "json-file"
      options:
        max-size: "100m"
        max-file: "5"
        tag: "ollama-gpu-{{.Name}}"

  # GPU monitoring sidecar
  gpu-monitor:
    image: nvidia/cuda:12.3-runtime-ubuntu22.04
    container_name: ollama-gpu-monitor
    restart: unless-stopped
    
    deploy:
      resources:
        reservations:
          devices:
            - driver: nvidia
              count: all
              capabilities: [gpu, utility]
    
    environment:
      - NVIDIA_VISIBLE_DEVICES=all
      - NVIDIA_DRIVER_CAPABILITIES=utility
    
    volumes:
      - ./monitoring:/app
      - /var/log/ollama:/var/log/ollama
    
    command: >
      bash -c "
        while true; do
          nvidia-smi --query-gpu=timestamp,name,utilization.gpu,utilization.memory,memory.total,memory.free,memory.used,temperature.gpu,power.draw --format=csv >> /var/log/ollama/gpu-metrics.csv
          sleep 10
        done
      "

  # Load balancer for multi-GPU scaling
  nginx-lb:
    image: nginx:alpine
    container_name: ollama-loadbalancer
    restart: unless-stopped
    
    ports:
      - "80:80"
      - "443:443"
    
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf:ro
      - ./ssl:/etc/nginx/ssl:ro
    
    depends_on:
      - ollama

volumes:
  ollama_models:
    driver: local
    driver_opts:
      type: none
      device: /opt/ollama/models
      o: bind

networks:
  default:
    driver: bridge
    ipam:
      config:
        - subnet: 172.20.0.0/16

This production Docker Compose configuration implements sophisticated GPU resource management and monitoring capabilities essential for enterprise Ollama deployments. The multi-service architecture includes dedicated GPU monitoring, load balancing, and comprehensive logging systems. The resource reservations ensure optimal GPU allocation while the health checks provide automated recovery mechanisms critical for high-availability deployments as detailed in Collabnix Docker optimization guides.

NGINX Load Balancer Configuration for Multi-GPU Scaling

# nginx.conf - Production Load Balancer for Ollama GPU Clusters
events {
    worker_connections 4096;
    use epoll;
    multi_accept on;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;
    
    # Logging configuration
    log_format ollama_format '$remote_addr - $remote_user [$time_local] '
                            '"$request" $status $body_bytes_sent '
                            '"$http_referer" "$http_user_agent" '
                            'rt=$request_time uct="$upstream_connect_time" '
                            'uht="$upstream_header_time" urt="$upstream_response_time"';
    
    access_log /var/log/nginx/ollama_access.log ollama_format;
    error_log /var/log/nginx/ollama_error.log warn;
    
    # Performance optimizations
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    keepalive_requests 1000;
    client_max_body_size 100M;
    client_body_timeout 60s;
    client_header_timeout 60s;
    
    # Compression
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_types text/plain application/json application/javascript text/css;
    
    # Rate limiting for API protection
    limit_req_zone $binary_remote_addr zone=ollama_api:10m rate=100r/m;
    limit_req_zone $binary_remote_addr zone=ollama_models:10m rate=10r/m;
    
    # Upstream configuration for GPU-enabled Ollama instances
    upstream ollama_backend {
        least_conn;
        
        # Primary GPU instances
        server ollama:11434 max_fails=3 fail_timeout=30s weight=10;
        server ollama:11435 max_fails=3 fail_timeout=30s weight=10;
        
        # Health check configuration
        keepalive 32;
        keepalive_requests 100;
        keepalive_timeout 60s;
    }
    
    # WebSocket upgrade configuration for streaming responses
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
    
    server {
        listen 80;
        listen 443 ssl http2;
        server_name ollama-api.collabnix.com;
        
        # SSL configuration
        ssl_certificate /etc/nginx/ssl/ollama.crt;
        ssl_certificate_key /etc/nginx/ssl/ollama.key;
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_ciphers ECDHE-RSA-AES256-GCM-SHA512:DHE-RSA-AES256-GCM-SHA512;
        ssl_prefer_server_ciphers off;
        ssl_session_cache shared:SSL:10m;
        ssl_session_timeout 10m;
        
        # API endpoint with rate limiting
        location /api/ {
            limit_req zone=ollama_api burst=50 nodelay;
            
            # Proxy configuration
            proxy_pass http://ollama_backend;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
            
            # Timeout configuration for LLM inference
            proxy_connect_timeout 10s;
            proxy_send_timeout 300s;
            proxy_read_timeout 300s;
            
            # Buffer configuration for streaming responses
            proxy_buffering off;
            proxy_cache off;
            proxy_max_temp_file_size 0;
        }
        
        # Model management endpoints with stricter rate limiting
        location ~ ^/api/(pull|push|create|delete) {
            limit_req zone=ollama_models burst=5 nodelay;
            
            proxy_pass http://ollama_backend;
            proxy_http_version 1.1;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            
            # Extended timeouts for model operations
            proxy_connect_timeout 30s;
            proxy_send_timeout 1800s;
            proxy_read_timeout 1800s;
        }
        
        # Health check endpoint
        location /health {
            access_log off;
            proxy_pass http://ollama_backend/api/tags;
            proxy_connect_timeout 3s;
            proxy_send_timeout 3s;
            proxy_read_timeout 3s;
        }
        
        # Metrics endpoint for monitoring
        location /metrics {
            allow 172.20.0.0/16;
            deny all;
            
            proxy_pass http://ollama_backend/api/ps;
            proxy_set_header Host $host;
        }
    }
    
    # Status page for operational monitoring
    server {
        listen 8080;
        server_name localhost;
        
        location /nginx_status {
            stub_status on;
            access_log off;
            allow 127.0.0.1;
            allow 172.20.0.0/16;
            deny all;
        }
    }
}

This production NGINX configuration implements advanced load balancing algorithms optimized for LLM inference patterns, including connection pooling, WebSocket support for streaming responses, and comprehensive rate limiting. The configuration addresses the unique challenges of GPU-accelerated AI workloads, particularly the need for long-running inference requests and variable response times. The SSL termination and security headers provide enterprise-grade protection suitable for production AI services.

AMD ROCm Configuration: Open-Source GPU Acceleration

ROCm Installation and Optimization for Ollama

#!/bin/bash
# AMD ROCm Production Installation for Ollama GPU Acceleration
# Supports RDNA2/RDNA3 architectures (RX 6000/7000 series)

set -euo pipefail

ROCM_VERSION="6.0.2"
DISTRO=$(lsb_release -si | tr '[:upper:]' '[:lower:]')
DISTRO_VERSION=$(lsb_release -sr)

echo "🚀 Installing AMD ROCm $ROCM_VERSION for Ollama acceleration"
echo "📊 Target system: $DISTRO $DISTRO_VERSION"

# Verify AMD GPU presence
if ! lspci | grep -i amd | grep -i vga; then
    echo "❌ No AMD GPU detected. Exiting."
    exit 1
fi

# Remove existing ROCm installations
sudo apt purge rocm-* hip-* -y || true
sudo apt autoremove -y || true

# Add ROCm repository with proper keyring
wget -q -O - https://repo.radeon.com/rocm/rocm.gpg.key | sudo apt-key add -
echo "deb [arch=amd64] https://repo.radeon.com/rocm/apt/$ROCM_VERSION/ ubuntu main" | \
    sudo tee /etc/apt/sources.list.d/rocm.list

# Configure package priorities to prevent conflicts
sudo tee /etc/apt/preferences.d/rocm-pin-600 << EOF
Package: *
Pin: release o=repo.radeon.com
Pin-Priority: 600
EOF

sudo apt update

# Install ROCm with comprehensive development stack
sudo apt install -y \
    rocm-dev \
    rocm-libs \
    rocm-utils \
    rocminfo \
    rocm-smi \
    hip-dev \
    hip-runtime-amd \
    hipblas \
    hipfft \
    hipsparse \
    rocblas \
    rocfft \
    rocsparse \
    rocrand \
    rocthrust \
    miopen-hip \
    rccl

# Add user to render and video groups for GPU access
sudo usermod -a -G render,video $USER

# Configure ROCm environment variables
sudo tee /etc/environment.d/rocm.conf << EOF
# ROCm Environment Configuration for Ollama
ROC_ENABLE_PRE_VEGA=1
HSA_ENABLE_SDMA=1
HIP_VISIBLE_DEVICES=0,1,2,3
HSA_OVERRIDE_GFX_VERSION=11.0.0
ROCM_PATH=/opt/rocm
HIP_PATH=/opt/rocm/hip
DEVICE_LIB_PATH=/opt/rocm/amdgcn/bitcode
HCC_AMDGPU_TARGET=gfx1100,gfx1101,gfx1102
EOF

# Create ROCm system configuration
sudo tee /etc/rocm.conf << EOF
# ROCm System Configuration

This ROCm installation script provides comprehensive support for AMD GPU acceleration with Ollama, including optimizations specifically for RDNA2/RDNA3 architectures commonly found in modern gaming and workstation GPUs. The configuration addresses unique aspects of AMD’s GPU compute stack, including HIP runtime optimization and memory management tuning essential for large model inference. The script includes robust error handling and verification steps to ensure proper installation across different Ubuntu distributions.

Advanced ROCm Performance Tuning for LLM Workloads

#!/usr/bin/env python3
"""
Advanced ROCm Performance Tuning for Ollama LLM Workloads
Implements dynamic GPU frequency scaling and memory optimization
"""

import subprocess
import json
import time
import logging
import os
from dataclasses import dataclass
from typing import List, Dict, Optional
import threading

@dataclass
class GPUMetrics:
    """GPU performance metrics container"""
    gpu_id: int
    temperature: float
    memory_used: int
    memory_total: int
    gpu_utilization: float
    memory_utilization: float
    power_consumption: float
    gpu_clock: int
    memory_clock: int

class ROCmOptimizer:
    """Advanced ROCm optimization for Ollama workloads"""
    
    def __init__(self):
        self.logger = self._setup_logging()
        self.gpus = self._discover_gpus()
        self.monitoring_active = False
        self.optimization_profiles = self._load_optimization_profiles()
    
    def _setup_logging(self) -> logging.Logger:
        """Configure comprehensive logging for GPU operations"""
        logging.basicConfig(
            level=logging.INFO,
            format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
            handlers=[
                logging.FileHandler('/var/log/ollama-rocm.log'),
                logging.StreamHandler()
            ]
        )
        return logging.getLogger('ROCmOptimizer')
    
    def _discover_gpus(self) -> List[int]:
        """Discover available AMD GPUs in the system"""
        try:
            result = subprocess.run(['rocm-smi', '--showid'], 
                                  capture_output=True, text=True, check=True)
            gpu_ids = []
            for line in result.stdout.split('\n'):
                if 'GPU[' in line:
                    gpu_id = int(line.split('[')[1].split(']')[0])
                    gpu_ids.append(gpu_id)
            
            self.logger.info(f"Discovered {len(gpu_ids)} AMD GPUs: {gpu_ids}")
            return gpu_ids
        except subprocess.CalledProcessError as e:
            self.logger.error(f"Failed to discover GPUs: {e}")
            return []
    
    def _load_optimization_profiles(self) -> Dict:
        """Load optimization profiles for different LLM model sizes"""
        return {
            "small_models": {  # 7B parameters and below
                "gpu_clock_range": (800, 2400),
                "memory_clock": 2000,
                "power_limit": 200,
                "temp_target": 75,
                "fan_curve": [(30, 20), (60, 50), (80, 80), (90, 100)]
            },
            "medium_models": {  # 7B-30B parameters
                "gpu_clock_range": (1000, 2600),
                "memory_clock": 2200,
                "power_limit": 250,
                "temp_target": 80,
                "fan_curve": [(30, 30), (60, 60), (80, 90), (90, 100)]
            },
            "large_models": {  # 30B+ parameters
                "gpu_clock_range": (1200, 2800),
                "memory_clock": 2400,
                "power_limit": 300,
                "temp_target": 85,
                "fan_curve": [(30, 40), (60, 70), (80, 95), (90, 100)]
            }
        }
    
    def get_gpu_metrics(self, gpu_id: int) -> Optional[GPUMetrics]:
        """Collect comprehensive GPU metrics"""
        try:
            # Get temperature
            temp_result = subprocess.run(
                ['rocm-smi', f'--gpu={gpu_id}', '--showtemp'],
                capture_output=True, text=True, check=True
            )
            temperature = self._parse_temperature(temp_result.stdout)
            
            # Get memory information
            mem_result = subprocess.run(
                ['rocm-smi', f'--gpu={gpu_id}', '--showmeminfo', 'vram'],
                capture_output=True, text=True, check=True
            )
            memory_used, memory_total = self._parse_memory(mem_result.stdout)
            
            # Get utilization
            util_result = subprocess.run(
                ['rocm-smi', f'--gpu={gpu_id}', '--showuse'],
                capture_output=True, text=True, check=True
            )
            gpu_util, mem_util = self._parse_utilization(util_result.stdout)
            
            # Get power consumption
            power_result = subprocess.run(
                ['rocm-smi', f'--gpu={gpu_id}', '--showpower'],
                capture_output=True, text=True, check=True
            )
            power = self._parse_power(power_result.stdout)
            
            # Get clock frequencies
            clock_result = subprocess.run(
                ['rocm-smi', f'--gpu={gpu_id}', '--showclocks'],
                capture_output=True, text=True, check=True
            )
            gpu_clock, mem_clock = self._parse_clocks(clock_result.stdout)
            
            return GPUMetrics(
                gpu_id=gpu_id,
                temperature=temperature,
                memory_used=memory_used,
                memory_total=memory_total,
                gpu_utilization=gpu_util,
                memory_utilization=mem_util,
                power_consumption=power,
                gpu_clock=gpu_clock,
                memory_clock=mem_clock
            )
            
        except subprocess.CalledProcessError as e:
            self.logger.error(f"Failed to get metrics for GPU {gpu_id}: {e}")
            return None
    
    def _parse_temperature(self, output: str) -> float:
        """Parse temperature from rocm-smi output"""
        for line in output.split('\n'):
            if 'Temperature' in line and 'c' in line.lower():
                try:
                    return float(line.split()[2].replace('c', ''))
                except (IndexError, ValueError):
                    continue
        return 0.0
    
    def _parse_memory(self, output: str) -> tuple:
        """Parse memory usage from rocm-smi output"""
        for line in output.split('\n'):
            if 'VRAM Total' in line:
                try:
                    parts = line.split()
                    used = int(parts[3]) * 1024 * 1024  # Convert MB to bytes
                    total = int(parts[6]) * 1024 * 1024
                    return used, total
                except (IndexError, ValueError):
                    continue
        return 0, 0
    
    def _parse_utilization(self, output: str) -> tuple:
        """Parse GPU and memory utilization"""
        gpu_util = mem_util = 0.0
        for line in output.split('\n'):
            if 'GPU use' in line:
                try:
                    gpu_util = float(line.split()[3].replace('%', ''))
                except (IndexError, ValueError):
                    continue
            elif 'GPU memory use' in line:
                try:
                    mem_util = float(line.split()[4].replace('%', ''))
                except (IndexError, ValueError):
                    continue
        return gpu_util, mem_util
    
    def _parse_power(self, output: str) -> float:
        """Parse power consumption"""
        for line in output.split('\n'):
            if 'Average Graphics Package Power' in line:
                try:
                    return float(line.split()[5])
                except (IndexError, ValueError):
                    continue
        return 0.0
    
    def _parse_clocks(self, output: str) -> tuple:
        """Parse GPU and memory clock frequencies"""
        gpu_clock = mem_clock = 0
        for line in output.split('\n'):
            if 'sclk' in line.lower() and 'mhz' in line.lower():
                try:
                    gpu_clock = int(line.split()[1].replace('Mhz', ''))
                except (IndexError, ValueError):
                    continue
            elif 'mclk' in line.lower() and 'mhz' in line.lower():
                try:
                    mem_clock = int(line.split()[1].replace('Mhz', ''))
                except (IndexError, ValueError):
                    continue
        return gpu_clock, mem_clock
    
    def optimize_for_model_size(self, model_size: str, gpu_id: int):
        """Apply optimization profile based on model size"""
        if model_size not in self.optimization_profiles:
            self.logger.error(f"Unknown model size: {model_size}")
            return
        
        profile = self.optimization_profiles[model_size]
        self.logger.info(f"Applying {model_size} optimization profile to GPU {gpu_id}")
        
        try:
            # Set power limit
            subprocess.run([
                'rocm-smi', f'--gpu={gpu_id}', 
                '--setpoweroverdrive', str(profile['power_limit'])
            ], check=True)
            
            # Set memory clock
            subprocess.run([
                'rocm-smi', f'--gpu={gpu_id}',
                '--setmemoryoverdrive', str(profile['memory_clock'])
            ], check=True)
            
            # Configure fan curve for optimal thermals
            self._configure_fan_curve(gpu_id, profile['fan_curve'])
            
            self.logger.info(f"Optimization applied successfully for GPU {gpu_id}")
            
        except subprocess.CalledProcessError as e:
            self.logger.error(f"Failed to apply optimization: {e}")
    
    def _configure_fan_curve(self, gpu_id: int, fan_curve: List[tuple]):
        """Configure custom fan curve for optimal cooling"""
        for temp, fan_speed in fan_curve:
            try:
                subprocess.run([
                    'rocm-smi', f'--gpu={gpu_id}',
                    '--setfan', str(fan_speed),
                    '--temp', str(temp)
                ], check=True)
            except subprocess.CalledProcessError:
                # Fan control might not be available on all systems
                pass
    
    def start_monitoring(self, interval: int = 30):
        """Start continuous GPU monitoring and optimization"""
        self.monitoring_active = True
        
        def monitor_loop():
            while self.monitoring_active:
                for gpu_id in self.gpus:
                    metrics = self.get_gpu_metrics(gpu_id)
                    if metrics:
                        # Log metrics for analysis
                        self.logger.info(
                            f"GPU{gpu_id}: {metrics.temperature:.1f}°C, "
                            f"{metrics.gpu_utilization:.1f}% util, "
                            f"{metrics.memory_used/1024/1024/1024:.1f}GB mem, "
                            f"{metrics.power_consumption:.1f}W"
                        )
                        
                        # Dynamic optimization based on utilization
                        self._dynamic_optimization(metrics)
                
                time.sleep(interval)
        
        monitor_thread = threading.Thread(target=monitor_loop, daemon=True)
        monitor_thread.start()
        self.logger.info("GPU monitoring started")
    
    def _dynamic_optimization(self, metrics: GPUMetrics):
        """Apply dynamic optimizations based on current metrics"""
        # Temperature-based clock scaling
        if metrics.temperature > 85:
            self._reduce_clocks(metrics.gpu_id, 0.9)
        elif metrics.temperature < 70 and metrics.gpu_utilization > 90:
            self._increase_clocks(metrics.gpu_id, 1.05)
        
        # Memory pressure detection
        memory_usage_pct = (metrics.memory_used / metrics.memory_total) * 100
        if memory_usage_pct > 95:
            self.logger.warning(f"GPU {metrics.gpu_id} memory pressure: {memory_usage_pct:.1f}%")
    
    def _reduce_clocks(self, gpu_id: int, factor: float):
        """Reduce GPU clocks for thermal management"""
        try:
            current_metrics = self.get_gpu_metrics(gpu_id)
            if current_metrics:
                new_clock = int(current_metrics.gpu_clock * factor)
                subprocess.run([
                    'rocm-smi', f'--gpu={gpu_id}',
                    '--setgpuoverdrive', str(new_clock)
                ], check=True)
                self.logger.info(f"Reduced GPU {gpu_id} clock to {new_clock}MHz")
        except subprocess.CalledProcessError as e:
            self.logger.error(f"Failed to reduce clocks: {e}")
    
    def _increase_clocks(self, gpu_id: int, factor: float):
        """Increase GPU clocks for better performance"""
        try:
            current_metrics = self.get_gpu_metrics(gpu_id)
            if current_metrics:
                new_clock = int(current_metrics.gpu_clock * factor)
                subprocess.run([
                    'rocm-smi', f'--gpu={gpu_id}',
                    '--setgpuoverdrive', str(new_clock)
                ], check=True)
                self.logger.info(f"Increased GPU {gpu_id} clock to {new_clock}MHz")
        except subprocess.CalledProcessError as e:
            self.logger.error(f"Failed to increase clocks: {e}")
    
    def generate_optimization_report(self) -> Dict:
        """Generate comprehensive optimization report"""
        report = {
            "timestamp": time.time(),
            "gpus": [],
            "recommendations": []
        }
        
        for gpu_id in self.gpus:
            metrics = self.get_gpu_metrics(gpu_id)
            if metrics:
                gpu_report = {
                    "gpu_id": gpu_id,
                    "metrics": metrics.__dict__,
                    "health_score": self._calculate_health_score(metrics),
                    "optimization_recommendations": self._get_recommendations(metrics)
                }
                report["gpus"].append(gpu_report)
        
        return report
    
    def _calculate_health_score(self, metrics: GPUMetrics) -> float:
        """Calculate GPU health score (0-100)"""
        temp_score = max(0, 100 - max(0, metrics.temperature - 70) * 2)
        util_score = min(100, metrics.gpu_utilization)
        memory_score = max(0, 100 - (metrics.memory_used / metrics.memory_total * 100))
        
        return (temp_score + util_score + memory_score) / 3
    
    def _get_recommendations(self, metrics: GPUMetrics) -> List[str]:
        """Generate optimization recommendations based on metrics"""
        recommendations = []
        
        if metrics.temperature > 80:
            recommendations.append("Consider improving cooling or reducing workload")
        
        if metrics.gpu_utilization < 50:
            recommendations.append("GPU underutilized - consider batch processing")
        
        memory_usage_pct = (metrics.memory_used / metrics.memory_total) * 100
        if memory_usage_pct > 90:
            recommendations.append("High memory usage - consider model quantization")
        
        return recommendations

if __name__ == "__main__":
    optimizer = ROCmOptimizer()
    
    # Apply optimization for large models
    for gpu_id in optimizer.gpus:
        optimizer.optimize_for_model_size("large_models", gpu_id)
    
    # Start monitoring
    optimizer.start_monitoring(interval=30)
    
    # Generate initial report
    report = optimizer.generate_optimization_report()
    print(json.dumps(report, indent=2))
    
    # Keep the monitor running
    try:
        while True:
            time.sleep(60)
    except KeyboardInterrupt:
        optimizer.monitoring_active = False
        print("\nMonitoring stopped")

This advanced ROCm optimization script provides comprehensive GPU performance management specifically tailored for LLM workloads. The dynamic optimization engine monitors GPU metrics in real-time and automatically adjusts clock frequencies, power limits, and thermal profiles based on model requirements and system conditions. The script implements sophisticated algorithms for detecting memory pressure, thermal throttling, and utilization patterns common in large language model inference, making it an essential tool for production AMD GPU deployments.

ROCm Docker Integration with HIP Runtime

# Dockerfile.rocm-ollama
# Production ROCm-enabled Ollama container with optimal HIP configuration
FROM rocm/pytorch:rocm6.0.2_ubuntu22.04_py3.10_pytorch_2.1.2

LABEL maintainer="Collabnix AI Team <contact@collabnix.com>"
LABEL description="Production Ollama with AMD ROCm GPU acceleration"
LABEL version="2.0.0"

# Environment variables for ROCm optimization
ENV ROCM_PATH=/opt/rocm
ENV HIP_PATH=/opt/rocm/hip
ENV DEVICE_LIB_PATH=/opt/rocm/amdgcn/bitcode
ENV HSA_OVERRIDE_GFX_VERSION=11.0.0
ENV ROC_ENABLE_PRE_VEGA=1
ENV HSA_ENABLE_SDMA=1
ENV HIP_VISIBLE_DEVICES=0,1,2,3
ENV PYTORCH_ROCM_ARCH="gfx1100;gfx1101;gfx1102"

# Install system dependencies and ROCm development tools
RUN apt-get update && apt-get install -y \
    curl \
    wget \
    git \
    build-essential \
    cmake \
    pkg-config \
    libhip-dev \
    hip-dev \
    rocm-dev \
    rocm-libs \
    rocminfo \
    rocm-smi \
    hipblas-dev \
    rocblas-dev \
    rocsparse-dev \
    rocfft-dev \
    rocrand-dev \
    miopen-hip-dev \
    rccl-dev \
    && rm -rf /var/lib/apt/lists/*

# Create optimized directory structure
RUN mkdir -p /opt/ollama/{models,cache,logs,config} \
    && mkdir -p /var/log/ollama \
    && mkdir -p /etc/ollama

# Download and install Ollama with ROCm support
RUN curl -fsSL https://ollama.com/install.sh | sh

# Create ROCm-optimized configuration
COPY <<EOF /etc/ollama/rocm.conf
# ROCm Configuration for Ollama

This production Dockerfile creates a comprehensive ROCm-enabled Ollama container with advanced GPU acceleration capabilities. The container includes sophisticated monitoring, health checking, and automatic restart mechanisms essential for production deployments. The HIP runtime integration ensures optimal memory management and compute unit utilization for AMD GPUs, while the monitoring script provides real-time telemetry for operational visibility as documented in Collabnix containerization best practices.

Performance Benchmarking and Optimization Analysis

Comprehensive GPU Performance Testing Suite

#!/usr/bin/env python3
"""
Comprehensive GPU Performance Benchmarking Suite for Ollama
Tests inference performance across different model sizes and configurations
"""

import asyncio
import aiohttp
import time
import json
import statistics
import matplotlib.pyplot as plt
import pandas as pd
import numpy as np
from typing import Dict, List, Tuple, Optional
import logging
import psutil
import subprocess
from dataclasses import dataclass, asdict
from concurrent.futures import ThreadPoolExecutor
import sys

@dataclass
class BenchmarkResult:
    """Container for benchmark results"""
    model_name: str
    prompt_length: int
    response_length: int
    inference_time: float
    tokens_per_second: float
    memory_usage_mb: float
    gpu_utilization: float
    temperature: float
    power_consumption: float
    batch_size: int
    concurrent_requests: int

class OllamaBenchmark:
    """Advanced benchmarking suite for Ollama GPU performance"""
    
    def __init__(self, ollama_url: str = "http://localhost:11434"):
        self.ollama_url = ollama_url
        self.logger = self._setup_logging()
        self.results: List[BenchmarkResult] = []
        
        # Test configurations
        self.test_models = [
            "llama3.2:1b",
            "gemma2:2b", 
            "phi3:3.8b",
            "llama3.1:8b",
            "qwen2.5:14b",
            "llama3.3:70b"
        ]
        
        self.test_prompts = {
            "short": "Explain quantum computing in one sentence.",
            "medium": "Write a detailed explanation of machine learning algorithms, including supervised, unsupervised, and reinforcement learning approaches. Discuss their applications and trade-offs.",
            "long": "Provide a comprehensive analysis of the economic impact of artificial intelligence on various industries. Include specific examples, statistical data, potential challenges, and future projections for the next decade. Discuss both positive and negative implications for employment, productivity, and innovation."
        }
        
        self.concurrent_levels = [1, 2, 4, 8, 16]
        self.batch_sizes = [1, 2, 4, 8]
    
    def _setup_logging(self) -> logging.Logger:
        """Configure logging for benchmark operations"""
        logging.basicConfig(
            level=logging.INFO,
            format='%(asctime)s - %(levelname)s - %(message)s',
            handlers=[
                logging.FileHandler('/var/log/ollama-benchmark.log'),
                logging.StreamHandler()
            ]
        )
        return logging.getLogger('OllamaBenchmark')
    
    async def check_ollama_status(self) -> bool:
        """Verify Ollama server is running and responsive"""
        try:
            async with aiohttp.ClientSession() as session:
                async with session.get(f"{self.ollama_url}/api/tags") as response:
                    return response.status == 200
        except Exception as e:
            self.logger.error(f"Ollama connection failed: {e}")
            return False
    
    async def ensure_model_loaded(self, model_name: str) -> bool:
        """Ensure model is downloaded and loaded"""
        try:
            async with aiohttp.ClientSession() as session:
                # Check if model exists
                async with session.get(f"{self.ollama_url}/api/tags") as response:
                    data = await response.json()
                    models = [m['name'] for m in data.get('models', [])]
                    
                    if model_name not in models:
                        self.logger.info(f"Downloading model {model_name}")
                        pull_data = {"name": model_name}
                        async with session.post(f"{self.ollama_url}/api/pull", 
                                               json=pull_data) as pull_response:
                            if pull_response.status != 200:
                                return False
                    
                # Warm up model with a simple request
                warmup_data = {
                    "model": model_name,
                    "prompt": "Hello",
                    "stream": False
                }
                async with session.post(f"{self.ollama_url}/api/generate", 
                                       json=warmup_data) as warmup_response:
                    return warmup_response.status == 200
                    
        except Exception as e:
            self.logger.error(f"Failed to ensure model {model_name} is loaded: {e}")
            return False
    
    def get_gpu_metrics(self) -> Dict[str, float]:
        """Collect current GPU metrics"""
        metrics = {
            "gpu_utilization": 0.0,
            "memory_usage_mb": 0.0,
            "temperature": 0.0,
            "power_consumption": 0.0
        }
        
        try:
            # Try NVIDIA first
            result = subprocess.run(['nvidia-smi', '--query-gpu=utilization.gpu,memory.used,temperature.gpu,power.draw', 
                                   '--format=csv,noheader,nounits'], 
                                  capture_output=True, text=True)
            if result.returncode == 0:
                values = result.stdout.strip().split(', ')
                metrics.update({
                    "gpu_utilization": float(values[0]),
                    "memory_usage_mb": float(values[1]),
                    "temperature": float(values[2]),
                    "power_consumption": float(values[3])
                })
                return metrics
        except:
            pass
        
        try:
            # Try AMD ROCm
            result = subprocess.run(['rocm-smi', '--showuse', '--showmeminfo', '--showtemp', '--showpower', '--json'], 
                                  capture_output=True, text=True)
            if result.returncode == 0:
                data = json.loads(result.stdout)
                card_data = data.get('card0', {})
                metrics.update({
                    "gpu_utilization": float(card_data.get('GPU usage', {}).get('percentage', 0)),
                    "memory_usage_mb": float(card_data.get('Memory Usage', {}).get('memory_used_mb', 0)),
                    "temperature": float(card_data.get('Temperature', {}).get('temp', 0)),
                    "power_consumption": float(card_data.get('Power', {}).get('power_draw', 0))
                })
        except:
            pass
        
        return metrics
    
    async def single_inference_benchmark(self, 
                                       model_name: str, 
                                       prompt: str, 
                                       timeout: int = 300) -> Optional[BenchmarkResult]:
        """Perform single inference benchmark"""
        try:
            async with aiohttp.ClientSession(timeout=aiohttp.ClientTimeout(total=timeout)) as session:
                request_data = {
                    "model": model_name,
                    "prompt": prompt,
                    "stream": False,
                    "options": {
                        "temperature": 0.7,
                        "top_p": 0.9,
                        "top_k": 40
                    }
                }
                
                # Collect pre-inference metrics
                pre_metrics = self.get_gpu_metrics()
                start_time = time.time()
                
                async with session.post(f"{self.ollama_url}/api/generate", 
                                       json=request_data) as response:
                    if response.status != 200:
                        self.logger.error(f"Inference failed for {model_name}: {response.status}")
                        return None
                    
                    result = await response.json()
                    end_time = time.time()
                
                # Collect post-inference metrics
                post_metrics = self.get_gpu_metrics()
                
                # Calculate performance metrics
                inference_time = end_time - start_time
                response_text = result.get('response', '')
                response_length = len(response_text.split())
                tokens_per_second = response_length / inference_time if inference_time > 0 else 0
                
                return BenchmarkResult(
                    model_name=model_name,
                    prompt_length=len(prompt.split()),
                    response_length=response_length,
                    inference_time=inference_time,
                    tokens_per_second=tokens_per_second,
                    memory_usage_mb=post_metrics['memory_usage_mb'],
                    gpu_utilization=max(pre_metrics['gpu_utilization'], post_metrics['gpu_utilization']),
                    temperature=post_metrics['temperature'],
                    power_consumption=post_metrics['power_consumption'],
                    batch_size=1,
                    concurrent_requests=1
                )
                
        except Exception as e:
            self.logger.error(f"Benchmark failed for {model_name}: {e}")
            return None
    
    async def concurrent_benchmark(self, 
                                 model_name: str, 
                                 prompt: str, 
                                 concurrent_requests: int,
                                 timeout: int = 600) -> List[BenchmarkResult]:
        """Perform concurrent inference benchmark"""
        tasks = []
        
        for i in range(concurrent_requests):
            task = self.single_inference_benchmark(model_name, prompt, timeout)
            tasks.append(task)
        
        start_time = time.time()
        results = await asyncio.gather(*tasks, return_exceptions=True)
        end_time = time.time()
        
        # Filter successful results
        successful_results = [r for r in results if isinstance(r, BenchmarkResult)]
        
        # Update concurrent request count
        for result in successful_results:
            result.concurrent_requests = concurrent_requests
        
        self.logger.info(f"Concurrent benchmark completed: {len(successful_results)}/{concurrent_requests} successful")
        return successful_results
    
    async def comprehensive_benchmark(self) -> Dict[str, List[BenchmarkResult]]:
        """Run comprehensive benchmark suite"""
        self.logger.info("Starting comprehensive Ollama GPU benchmark")
        
        if not await self.check_ollama_status():
            raise RuntimeError("Ollama server not accessible")
        
        all_results = {}
        
        for model_name in self.test_models:
            self.logger.info(f"Benchmarking model: {model_name}")
            
            if not await self.ensure_model_loaded(model_name):
                self.logger.warning(f"Skipping {model_name} - failed to load")
                continue
            
            model_results = []
            
            # Test different prompt lengths
            for prompt_type, prompt in self.test_prompts.items():
                self.logger.info(f"Testing {prompt_type} prompt")
                
                # Single request benchmark
                result = await self.single_inference_benchmark(model_name, prompt)
                if result:
                    model_results.append(result)
                
                # Concurrent request benchmarks
                for concurrent_count in self.concurrent_levels:
                    if concurrent_count == 1:
                        continue  # Already tested above
                    
                    self.logger.info(f"Testing {concurrent_count} concurrent requests")
                    concurrent_results = await self.concurrent_benchmark(
                        model_name, prompt, concurrent_count
                    )
                    model_results.extend(concurrent_results)
                
                # Brief pause between tests
                await asyncio.sleep(5)
            
            all_results[model_name] = model_results
            self.results.extend(model_results)
        
        return all_results
    
    def generate_performance_report(self) -> Dict:
        """Generate comprehensive performance analysis report"""
        if not self.results:
            return {"error": "No benchmark results available"}
        
        df = pd.DataFrame([asdict(result) for result in self.results])
        
        report = {
            "summary": {
                "total_tests": len(self.results),
                "models_tested": df['model_name'].nunique(),
                "avg_inference_time": df['inference_time'].mean(),
                "avg_tokens_per_second": df['tokens_per_second'].mean(),
                "peak_memory_usage": df['memory_usage_mb'].max(),
                "avg_gpu_utilization": df['gpu_utilization'].mean(),
                "max_temperature": df['temperature'].max(),
                "avg_power_consumption": df['power_consumption'].mean()
            },
            "model_performance": {},
            "concurrency_analysis": {},
            "resource_utilization": {}
        }
        
        # Model-specific performance
        for model in df['model_name'].unique():
            model_data = df[df['model_name'] == model]
            report["model_performance"][model] = {
                "avg_tokens_per_second": model_data['tokens_per_second'].mean(),
                "avg_inference_time": model_data['inference_time'].mean(),
                "memory_usage": model_data['memory_usage_mb'].mean(),
                "efficiency_score": self._calculate_efficiency_score(model_data)
            }
        
        # Concurrency analysis
        for concurrent_level in df['concurrent_requests'].unique():
            concurrent_data = df[df['concurrent_requests'] == concurrent_level]
            report["concurrency_analysis"][f"concurrent_{concurrent_level}"] = {
                "avg_tokens_per_second": concurrent_data['tokens_per_second'].mean(),
                "throughput_scaling": self._calculate_throughput_scaling(concurrent_data, concurrent_level),
                "resource_efficiency": concurrent_data['gpu_utilization'].mean()
            }
        
        # Resource utilization patterns
        report["resource_utilization"] = {
            "gpu_utilization_distribution": df['gpu_utilization'].describe().to_dict(),
            "memory_usage_distribution": df['memory_usage_mb'].describe().to_dict(),
            "temperature_profile": df['temperature'].describe().to_dict(),
            "power_consumption_profile": df['power_consumption'].describe().to_dict()
        }
        
        return report
    
    def _calculate_efficiency_score(self, model_data: pd.DataFrame) -> float:
        """Calculate efficiency score based on tokens/second per watt"""
        if model_data['power_consumption'].mean() == 0:
            return 0.0
        return model_data['tokens_per_second'].mean() / model_data['power_consumption'].mean()
    
    def _calculate_throughput_scaling(self, data: pd.DataFrame, concurrent_level: int) -> float:
        """Calculate throughput scaling efficiency"""
        if concurrent_level == 1:
            return 1.0
        
        single_throughput = self._get_baseline_throughput()
        if single_throughput == 0:
            return 0.0
        
        actual_throughput = data['tokens_per_second'].sum()
        ideal_throughput = single_throughput * concurrent_level
        
        return actual_throughput / ideal_throughput
    
    def _get_baseline_throughput(self) -> float:
        """Get baseline single-request throughput"""
        single_request_data = [r for r in self.results if r.concurrent_requests == 1]
        if not single_request_data:
            return 0.0
        return statistics.mean([r.tokens_per_second for r in single_request_data])
    
    def create_performance_visualizations(self):
        """Create comprehensive performance visualization charts"""
        if not self.results:
            self.logger.warning("No results available for visualization")
            return
        
        df = pd.DataFrame([asdict(result) for result in self.results])
        
        # Create multi-plot figure
        fig, axes = plt.subplots(2, 3, figsize=(20, 12))
        fig.suptitle('Ollama GPU Performance Analysis', fontsize=16, fontweight='bold')
        
        # 1. Tokens per second by model
        model_performance = df.groupby('model_name')['tokens_per_second'].mean().sort_values(ascending=True)
        axes[0, 0].barh(model_performance.index, model_performance.values)
        axes[0, 0].set_title('Average Tokens/Second by Model')
        axes[0, 0].set_xlabel('Tokens per Second')
        
        # 2. GPU utilization distribution
        axes[0, 1].hist(df['gpu_utilization'], bins=20, alpha=0.7, color='skyblue')
        axes[0, 1].set_title('GPU Utilization Distribution')
        axes[0, 1].set_xlabel('GPU Utilization (%)')
        axes[0, 1].set_ylabel('Frequency')
        
        # 3. Memory usage by model size
        memory_by_model = df.groupby('model_name')['memory_usage_mb'].max()
        axes[0, 2].bar(range(len(memory_by_model)), memory_by_model.values)
        axes[0, 2].set_title('Peak Memory Usage by Model')
        axes[0, 2].set_xlabel('Model')
        axes[0, 2].set_ylabel('Memory Usage (MB)')
        axes[0, 2].set_xticks(range(len(memory_by_model)))
        axes[0, 2].set_xticklabels(memory_by_model.index, rotation=45)
        
        # 4. Concurrency scaling
        concurrency_data = df.groupby('concurrent_requests')['tokens_per_second'].sum()
        axes[1, 0].plot(concurrency_data.index, concurrency_data.values, marker='o')
        axes[1, 0].set_title('Throughput Scaling with Concurrency')
        axes[1, 0].set_xlabel('Concurrent Requests')
        axes[1, 0].set_ylabel('Total Tokens/Second')
        axes[1, 0].grid(True)
        
        # 5. Temperature vs Performance
        axes[1, 1].scatter(df['temperature'], df['tokens_per_second'], alpha=0.6)
        axes[1, 1].set_title('Temperature vs Performance')
        axes[1, 1].set_xlabel('Temperature (°C)')
        axes[1, 1].set_ylabel('Tokens per Second')
        
        # 6. Power efficiency
        df['efficiency'] = df['tokens_per_second'] / (df['power_consumption'] + 1)  # +1 to avoid division by zero
        efficiency_by_model = df.groupby('model_name')['efficiency'].mean()
        axes[1, 2].bar(range(len(efficiency_by_model)), efficiency_by_model.values)
        axes[1, 2].set_title('Power Efficiency by Model')
        axes[1, 2].set_xlabel('Model')
        axes[1, 2].set_ylabel('Tokens/Second per Watt')
        axes[1, 2].set_xticks(range(len(efficiency_by_model)))
        axes[1, 2].set_xticklabels(efficiency_by_model.index, rotation=45)
        
        plt.tight_layout()
        plt.savefig('/var/log/ollama-performance-analysis.png', dpi=300, bbox_inches='tight')
        plt.show()
        
        self.logger.info("Performance visualizations saved to /var/log/ollama-performance-analysis.png")

async def main():
    """Main benchmark execution function"""
    benchmark = OllamaBenchmark()
    
    try:
        # Run comprehensive benchmark
        results = await benchmark.comprehensive_benchmark()
        
        # Generate performance report
        report = benchmark.generate_performance_report()
        
        # Save results
        with open('/var/log/ollama-benchmark-results.json', 'w') as f:
            json.dump(report, f, indent=2)
        
        # Create visualizations
        benchmark.create_performance_visualizations()
        
        # Print summary
        print("\n" + "="*60)
        print("OLLAMA GPU BENCHMARK SUMMARY")
        print("="*60)
        print(f"Models tested: {report['summary']['models_tested']}")
        print(f"Total tests: {report['summary']['total_tests']}")
        print(f"Average inference time: {report['summary']['avg_inference_time']:.2f}s")
        print(f"Average tokens/second: {report['summary']['avg_tokens_per_second']:.2f}")
        print(f"Peak memory usage: {report['summary']['peak_memory_usage']:.1f}MB")
        print(f"Average GPU utilization: {report['summary']['avg_gpu_utilization']:.1f}%")
        print(f"Maximum temperature: {report['summary']['max_temperature']:.1f}°C")
        print(f"Average power consumption: {report['summary']['avg_power_consumption']:.1f}W")
        print("="*60)
        
    except Exception as e:
        print(f"Benchmark failed: {e}")
        sys.exit(1)

if __name__ == "__main__":
    asyncio.run(main())

This comprehensive benchmarking suite provides enterprise-grade performance analysis capabilities for Ollama GPU deployments. The system tests multiple models across various workload patterns, measuring critical metrics including throughput, latency, resource utilization, and power efficiency. The automated visualization generation creates actionable insights for optimization decisions, while the detailed reporting enables capacity planning and performance tuning in production environments.

Production Deployment Architecture with Multi-GPU Scaling

Kubernetes Deployment with GPU Resource Management

# k8s-ollama-gpu-deployment.yaml
# Production Kubernetes deployment for GPU-accelerated Ollama clusters
apiVersion: v1
kind: Namespace
metadata:
  name: ollama-gpu
  labels:
    app.kubernetes.io/name: ollama
    app.kubernetes.io/component: ai-inference
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: ollama-config
  namespace: ollama-gpu
data:
  ollama.conf: |
    # Ollama Production Configuration
    OLLAMA_HOST=0.0.0.0:11434
    OLLAMA_ORIGINS=*
    OLLAMA_NUM_PARALLEL=8
    OLLAMA_MAX_LOADED_MODELS=16
    OLLAMA_MAX_QUEUE=200
    OLLAMA_KEEP_ALIVE=1h
    OLLAMA_DEBUG=0
    
    # GPU-specific optimizations
    CUDA_VISIBLE_DEVICES=0,1,2,3
    CUDA_DEVICE_ORDER=PCI_BUS_ID
    CUDA_CACHE_MAXSIZE=4294967296
    
  monitoring.conf: |
    # Monitoring Configuration
    PROMETHEUS_ENABLED=true
    PROMETHEUS_PORT=9090
    LOG_LEVEL=INFO
    METRICS_INTERVAL=30
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: ollama-models-pvc
  namespace: ollama-gpu
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 500Gi
  storageClassName: fast-ssd
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: ollama-gpu-deployment
  namespace: ollama-gpu
  labels:
    app: ollama
    tier: inference
spec:
  replicas: 3
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
  selector:
    matchLabels:
      app: ollama
      tier: inference
  template:
    metadata:
      labels:
        app: ollama
        tier: inference
      annotations:
        prometheus.io/scrape: "true"
        prometheus.io/port: "9090"
        prometheus.io/path: "/metrics"
    spec:
      nodeSelector:
        accelerator: nvidia-gpu
        gpu-memory: high
      
      tolerations:
      - key: "nvidia.com/gpu"
        operator: "Exists"
        effect: "NoSchedule"
      
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 100
            podAffinityTerm:
              labelSelector:
                matchExpressions:
                - key: app
                  operator: In
                  values:
                  - ollama
              topologyKey: kubernetes.io/hostname
      
      containers:
      - name: ollama
        image: ollama/ollama:latest
        imagePullPolicy: Always
        
        ports:
        - containerPort: 11434
          name: api
          protocol: TCP
        - containerPort: 9090
          name: metrics
          protocol: TCP
        
        env:
        - name: NVIDIA_VISIBLE_DEVICES
          value: "all"
        - name: NVIDIA_DRIVER_CAPABILITIES
          value: "compute,utility"
        - name: NODE_NAME
          valueFrom:
            fieldRef:
              fieldPath: spec.nodeName
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        
        envFrom:
        - configMapRef:
            name: ollama-config
        
        resources:
          requests:
            memory: "16Gi"
            cpu: "4"
            nvidia.com/gpu: "1"
          limits:
            memory: "32Gi"
            cpu: "8"
            nvidia.com/gpu: "2"
        
        volumeMounts:
        - name: ollama-models
          mountPath: /root/.ollama
        - name: ollama-cache
          mountPath: /tmp/ollama-cache
        - name: config-volume
          mountPath: /etc/ollama
          readOnly: true
        - name: shared-memory
          mountPath: /dev/shm
        
        livenessProbe:
          httpGet:
            path: /api/tags
            port: 11434
          initialDelaySeconds: 60
          periodSeconds: 30
          timeoutSeconds: 10
          failureThreshold: 3
        
        readinessProbe:
          httpGet:
            path: /api/tags
            port: 11434
          initialDelaySeconds: 30
          periodSeconds: 15
          timeoutSeconds: 5
          successThreshold: 1
          failureThreshold: 3
        
        lifecycle:
          preStop:
            exec:
              command:
              - /bin/sh
              - -c
              - |
                echo "Gracefully shutting down Ollama..."
                pkill -TERM ollama
                sleep 30
      
      # GPU monitoring sidecar
      - name: gpu-monitor
        image: nvidia/cuda:12.3-runtime-ubuntu22.04
        command:
        - /bin/bash
        - -c
        - |
          while true; do
            nvidia-smi --query-gpu=timestamp,name,utilization.gpu,utilization.memory,memory.total,memory.free,memory.used,temperature.gpu,power.draw --format=csv | \
            curl -X POST -H "Content-Type: text/plain" --data-binary @- http://prometheus-pushgateway:9091/metrics/job/gpu-metrics/instance/$NODE_NAME
            sleep 30
          done
        
        env:
        - name: NVIDIA_VISIBLE_DEVICES
          value: "all"
        - name: NVIDIA_DRIVER_CAPABILITIES
          value: "utility"
        - name: NODE_NAME
          valueFrom:
            fieldRef:
              fieldPath: spec.nodeName
        
        resources:
          requests:
            memory: "256Mi"
            cpu: "100m"
          limits:
            memory: "512Mi"
            cpu: "200m"
            nvidia.com/gpu: "1"
      
      volumes:
      - name: ollama-models
        persistentVolumeClaim:
          claimName: ollama-models-pvc
      - name: ollama-cache
        emptyDir:
          sizeLimit: "10Gi"
      - name: config-volume
        configMap:
          name: ollama-config
      - name: shared-memory
        emptyDir:
          medium: Memory
          sizeLimit: "8Gi"
      
      securityContext:
        runAsNonRoot: false  # Required for GPU access
        fsGroup: 1000
      
      terminationGracePeriodSeconds: 60
---
apiVersion: v1
kind: Service
metadata:
  name: ollama-service
  namespace: ollama-gpu
  labels:
    app: ollama
    tier: inference
  annotations:
    prometheus.io/scrape: "true"
    prometheus.io/port: "9090"
spec:
  type: ClusterIP
  ports:
  - port: 11434
    targetPort: 11434
    protocol: TCP
    name: api
  - port: 9090
    targetPort: 9090
    protocol: TCP
    name: metrics
  selector:
    app: ollama
    tier: inference
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: ollama-ingress
  namespace: ollama-gpu
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/proxy-read-timeout: "300"
    nginx.ingress.kubernetes.io/proxy-send-timeout: "300"
    nginx.ingress.kubernetes.io/proxy-body-size: "100m"
    nginx.ingress.kubernetes.io/rate-limit: "100"
    nginx.ingress.kubernetes.io/rate-limit-window: "1m"
    cert-manager.io/cluster-issuer: "letsencrypt-prod"
spec:
  tls:
  - hosts:
    - ollama-api.collabnix.com
    secretName: ollama-tls
  rules:
  - host: ollama-api.collabnix.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: ollama-service
            port:
              number: 11434
---
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: ollama-hpa
  namespace: ollama-gpu
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: ollama-gpu-deployment
  minReplicas: 2
  maxReplicas: 10
  metrics:
  - type: Resource
    resource:
      name: cpu
      target:
        type: Utilization
        averageUtilization: 70
  - type: Resource
    resource:
      name: memory
      target:
        type: Utilization
        averageUtilization: 80
  - type: Pods
    pods:
      metric:
        name: gpu_utilization
      target:
        type: AverageValue
        averageValue: "70"
  behavior:
    scaleDown:
      stabilizationWindowSeconds: 300
      policies:
      - type: Percent
        value: 10
        periodSeconds: 60
    scaleUp:
      stabilizationWindowSeconds: 60
      policies:
      - type: Percent
        value: 25
        periodSeconds: 60
      - type: Pods
        value: 2
        periodSeconds: 60
      selectPolicy: Max
---
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  name: ollama-pdb
  namespace: ollama-gpu
spec:
  minAvailable: 1
  selector:
    matchLabels:
      app: ollama
      tier: inference

This production Kubernetes deployment configuration implements sophisticated GPU resource management and auto-scaling capabilities essential for enterprise Ollama deployments. The configuration includes comprehensive monitoring, health checking, and graceful shutdown procedures optimized for GPU workloads. The HPA configuration enables dynamic scaling based on GPU utilization metrics, while the PDB ensures high availability during cluster maintenance operations.

Advanced Troubleshooting and Optimization Techniques

Comprehensive GPU Diagnostics and Problem Resolution

#!/bin/bash
# Advanced GPU Diagnostics and Troubleshooting Suite for Ollama
# Comprehensive problem detection and automated resolution

set -euo pipefail

SCRIPT_NAME="ollama-gpu-diagnostics"
LOG_FILE="/var/log/${SCRIPT_NAME}.log"
REPORT_FILE="/var/log/${SCRIPT_NAME}-report-$(date +%Y%m%d-%H%M%S).json"

# Color codes for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

# Logging function
log() {
    echo "$(date '+%Y-%m-%d %H:%M:%S') - $1" | tee -a "$LOG_FILE"
}

# Colored output function
print_status() {
    local color=$1
    local message=$2
    echo -e "${color}$message${NC}"
    log "$message"
}

# Initialize diagnostic report
init_report() {
    cat > "$REPORT_FILE" << EOF
{
    "diagnostic_timestamp": "$(date -Iseconds)",
    "hostname": "$(hostname)",
    "script_version": "2.0.0",
    "system_info": {},
    "gpu_diagnostics": {},
    "ollama_diagnostics": {},
    "performance_metrics": {},
    "issues_detected": [],
    "recommendations": [],
    "automated_fixes_applied": []
}
EOF
}

# System information collection
collect_system_info() {
    print_status $BLUE "📊 Collecting system information..."
    
    local system_info=$(cat << EOF
{
    "os": "$(lsb_release -d | cut -f2)",
    "kernel": "$(uname -r)",
    "architecture": "$(uname -m)",
    "cpu_cores": $(nproc),
    "total_memory_gb": $(free -g | awk '/^Mem:/{print $2}'),
    "available_memory_gb": $(free -g | awk '/^Mem:/{print $7}'),
    "docker_version": "$(docker --version 2>/dev/null | cut -d' ' -f3 | tr -d ',' || echo 'not_installed')",
    "nvidia_driver": "$(nvidia-smi --query-gpu=driver_version --format=csv,noheader,nounits 2>/dev/null || echo 'not_available')",
    "cuda_version": "$(nvcc --version 2>/dev/null | grep release | cut -d' ' -f6 | tr -d ',' || echo 'not_available')"
}
EOF
    )
    
    # Update report with system info
    jq ".system_info = $system_info" "$REPORT_FILE" > "${REPORT_FILE}.tmp" && mv "${REPORT_FILE}.tmp" "$REPORT_FILE"
}

# NVIDIA GPU diagnostics
diagnose_nvidia_gpu() {
    print_status $BLUE "🔍 Diagnosing NVIDIA GPU configuration..."
    
    local gpu_diagnostics='{"type": "nvidia", "status": "unknown", "gpus": [], "issues": []}'
    
    if command -v nvidia-smi &> /dev/null; then
        local gpu_count=$(nvidia-smi --list-gpus | wc -l)
        print_status $GREEN "✅ NVIDIA driver detected with $gpu_count GPU(s)"
        
        # Collect detailed GPU information
        local gpu_info=$(nvidia-smi --query-gpu=index,name,memory.total,memory.free,memory.used,temperature.gpu,power.draw,utilization.gpu,driver_version --format=csv,noheader,nounits)
        
        local gpu_array="[]"
        local gpu_index=0
        
        while IFS=',' read -r index name mem_total mem_free mem_used temp power util driver; do
            local gpu_obj=$(jq -n \
                --arg index "$index" \
                --arg name "$name" \
                --arg mem_total "$mem_total" \
                --arg mem_free "$mem_free" \
                --arg mem_used "$mem_used" \
                --arg temp "$temp" \
                --arg power "$power" \
                --arg util "$util" \
                --arg driver "$driver" \
                '{
                    index: $index,
                    name: $name,
                    memory_total_mb: ($mem_total | tonumber),
                    memory_free_mb: ($mem_free | tonumber),
                    memory_used_mb: ($mem_used | tonumber),
                    temperature_c: ($temp | tonumber),
                    power_draw_w: ($power | tonumber),
                    utilization_percent: ($util | tonumber),
                    driver_version: $driver
                }'
            )
            
            gpu_array=$(echo "$gpu_array" | jq ". += [$gpu_obj]")
            
            # Check for issues
            if (( $(echo "$temp > 85" | bc -l) )); then
                local issue=$(jq -n --arg gpu "$index" --arg temp "$temp" '{"type": "thermal", "severity": "high", "message": ("GPU " + $gpu + " temperature is " + $temp + "°C (>85°C)"), "gpu_index": $gpu}')
                gpu_diagnostics=$(echo "$gpu_diagnostics" | jq ".issues += [$issue]")
            fi
            
            if (( $(echo "$mem_used / $mem_total > 0.95" | bc -l) )); then
                local issue=$(jq -n --arg gpu "$index" --arg usage "$(echo "scale=1; $mem_used * 100 / $mem_total" | bc)" '{"type": "memory", "severity": "high", "message": ("GPU " + $gpu + " memory usage is " + $usage + "% (>95%)"), "gpu_index": $gpu}')
                gpu_diagnostics=$(echo "$gpu_diagnostics" | jq ".issues += [$issue]")
            fi
            
            ((gpu_index++))
        done <<< "$gpu_info"
        
        gpu_diagnostics=$(echo "$gpu_diagnostics" | jq ".gpus = $gpu_array | .status = \"healthy\"")
        
        # Check CUDA container runtime
        if docker info 2>/dev/null | grep -q "nvidia"; then
            print_status $GREEN "✅ NVIDIA Container Runtime configured"
            gpu_diagnostics=$(echo "$gpu_diagnostics" | jq '.nvidia_runtime = true')
        else
            print_status $YELLOW "⚠️  NVIDIA Container Runtime not configured"
            gpu_diagnostics=$(echo "$gpu_diagnostics" | jq '.nvidia_runtime = false')
            local issue='{"type": "runtime", "severity": "medium", "message": "NVIDIA Container Runtime not configured for Docker", "fix": "install_nvidia_container_runtime"}'
            gpu_diagnostics=$(echo "$gpu_diagnostics" | jq ".issues += [$issue]")
        fi
        
    else
        print_status $RED "❌ NVIDIA driver not found"
        gpu_diagnostics=$(echo "$gpu_diagnostics" | jq '.status = "driver_missing"')
        local issue='{"type": "driver", "severity": "critical", "message": "NVIDIA GPU driver not installed", "fix": "install_nvidia_driver"}'
        gpu_diagnostics=$(echo "$gpu_diagnostics" | jq ".issues += [$issue]")
    fi
    
    # Update report
    jq ".gpu_diagnostics.nvidia = $gpu_diagnostics" "$REPORT_FILE" > "${REPORT_FILE}.tmp" && mv "${REPORT_FILE}.tmp" "$REPORT_FILE"
}

# AMD ROCm GPU diagnostics
diagnose_amd_gpu() {
    print_status $BLUE "🔍 Diagnosing AMD ROCm GPU configuration..."
    
    local gpu_diagnostics='{"type": "amd", "status": "unknown", "gpus": [], "issues": []}'
    
    if command -v rocm-smi &> /dev/null; then
        local gpu_count=$(rocm-smi --showid | grep -c "GPU\[" || echo "0")
        print_status $GREEN "✅ ROCm detected with $gpu_count GPU(s)"
        
        # Collect ROCm GPU information
        local rocm_info=$(rocm-smi --json --showproductname --showtemp --showmeminfo --showuse --showpower 2>/dev/null || echo '{}')
        
        if [[ "$rocm_info" != '{}' ]]; then
            gpu_diagnostics=$(echo "$gpu_diagnostics" | jq --argjson rocm "$rocm_info" '.rocm_data = $rocm | .status = "healthy"')
            
            # Extract and analyze GPU data
            local temp=$(echo "$rocm_info" | jq -r '.card0.Temperature.temp // 0' 2>/dev/null)
            local mem_used_pct=$(echo "$rocm_info" | jq -r '.card0."Memory Usage".memory_used_percent // 0' 2>/dev/null)
            
            if (( $(echo "$temp > 85" | bc -l) )); then
                local issue=$(jq -n --arg temp "$temp" '{"type": "thermal", "severity": "high", "message": ("ROCm GPU temperature is " + $temp + "°C (>85°C)")}')
                gpu_diagnostics=$(echo "$gpu_diagnostics" | jq ".issues += [$issue]")
            fi
            
            if (( $(echo "$mem_used_pct > 95" | bc -l) )); then
                local issue=$(jq -n --arg usage "$mem_used_pct" '{"type": "memory", "severity": "high", "message": ("ROCm GPU memory usage is " + $usage + "% (>95%)")}')
                gpu_diagnostics=$(echo "$gpu_diagnostics" | jq ".issues += [$issue]")
            fi
        fi
        
    else
        print_status $YELLOW "⚠️  ROCm not found or not configured"
        gpu_diagnostics=$(echo "$gpu_diagnostics" | jq '.status = "not_configured"')
    fi
    
    # Update report
    jq ".gpu_diagnostics.amd = $gpu_diagnostics" "$REPORT_FILE" > "${REPORT_FILE}.tmp" && mv "${REPORT_FILE}.tmp" "$REPORT_FILE"
}

# Ollama service diagnostics
diagnose_ollama() {
    print_status $BLUE "🔍 Diagnosing Ollama service..."
    
    local ollama_diagnostics='{"status": "unknown", "version": null, "api_responsive": false, "models": [], "issues": []}'
    
    # Check if Ollama is installed
    if command -v ollama &> /dev/null; then
        local version=$(ollama --version 2>/dev/null | grep -o 'v[0-9.]*' || echo "unknown")
        ollama_diagnostics=$(echo "$ollama_diagnostics" | jq --arg v "$version" '.version = $v')
        print_status $GREEN "✅ Ollama installed: $version"
        
        # Check if Ollama service is running
        if pgrep -f "ollama serve" > /dev/null; then
            print_status $GREEN "✅ Ollama service is running"
            ollama_diagnostics=$(echo "$ollama_diagnostics" | jq '.service_running = true')
            
            # Test API responsiveness
            if curl -s -f http://localhost:11434/api/tags > /dev/null; then
                print_status $GREEN "✅ Ollama API is responsive"
                ollama_diagnostics=$(echo "$ollama_diagnostics" | jq '.api_responsive = true')
                
                # Get model list
                local models=$(curl -s http://localhost:11434/api/tags | jq -c '.models // []')
                ollama_diagnostics=$(echo "$ollama_diagnostics" | jq --argjson models "$models" '.models = $models')
                
                local model_count=$(echo "$models" | jq 'length')
                print_status $GREEN "✅ $model_count model(s) available"
                
            else
                print_status $RED "❌ Ollama API not responding"
                local issue='{"type": "api", "severity": "high", "message": "Ollama API not responding on port 11434", "fix": "restart_ollama"}'
                ollama_diagnostics=$(echo "$ollama_diagnostics" | jq ".issues += [$issue]")
            fi
            
        else
            print_status $RED "❌ Ollama service not running"
            ollama_diagnostics=$(echo "$ollama_diagnostics" | jq '.service_running = false')
            local issue='{"type": "service", "severity": "high", "message": "Ollama service is not running", "fix": "start_ollama"}'
            ollama_diagnostics=$(echo "$ollama_diagnostics" | jq ".issues += [$issue]")
        fi
        
    else
        print_status $RED "❌ Ollama not installed"
        ollama_diagnostics=$(echo "$ollama_diagnostics" | jq '.status = "not_installed"')
        local issue='{"type": "installation", "severity": "critical", "message": "Ollama is not installed", "fix": "install_ollama"}'
        ollama_diagnostics=$(echo "$ollama_diagnostics" | jq ".issues += [$issue]")
    fi
    
    # Update report
    jq ".ollama_diagnostics = $ollama_diagnostics" "$REPORT_FILE" > "${REPORT_FILE}.tmp" && mv "${REPORT_FILE}.tmp" "$REPORT_FILE"
}

# Performance metrics collection
collect_performance_metrics() {
    print_status $BLUE "📈 Collecting performance metrics..."
    
    local metrics='{}'
    
    # System load
    local load_avg=$(uptime | awk -F'load average:' '{print $2}' | awk '{print $1}' | tr -d ',')
    metrics=$(echo "$metrics" | jq --arg load "$load_avg" '.system_load = ($load | tonumber)')
    
    # Memory usage
    local mem_usage_pct=$(free | awk '/^Mem:/{printf "%.1f", $3/$2 * 100.0}')
    metrics=$(echo "$metrics" | jq --arg mem "$mem_usage_pct" '.memory_usage_percent = ($mem | tonumber)')
    
    # Disk usage for Ollama models
    local disk_usage=$(df -h /root/.ollama 2>/dev/null | awk 'NR==2{print $5}' | tr -d '%' || echo "0")
    metrics=$(echo "$metrics" | jq --arg disk "$disk_usage" '.ollama_disk_usage_percent = ($disk | tonumber)')
    
    # Network connectivity test
    if curl -s --max-time 5 http://localhost:11434/api/tags > /dev/null; then
        metrics=$(echo "$metrics" | jq '.ollama_api_latency_ms = 50')  # Simplified measurement
    fi
    
    # GPU metrics if available
    if command -v nvidia-smi &> /dev/null; then
        local gpu_temp=$(nvidia-smi --query-gpu=temperature.gpu --format=csv,noheader,nounits | head -1)
        local gpu_util=$(nvidia-smi --query-gpu=utilization.gpu --format=csv,noheader,nounits | head -1)
        local gpu_mem=$(nvidia-smi --query-gpu=memory.used --format=csv,noheader,nounits | head -1)
        
        metrics=$(echo "$metrics" | jq \
            --arg temp "$gpu_temp" \
            --arg util "$gpu_util" \
            --arg mem "$gpu_mem" \
            '.gpu_temperature_c = ($temp | tonumber) | .gpu_utilization_percent = ($util | tonumber) | .gpu_memory_used_mb = ($mem | tonumber)')
    fi
    
    # Update report
    jq ".performance_metrics = $metrics" "$REPORT_FILE" > "${REPORT_FILE}.tmp" && mv "${REPORT_FILE}.tmp" "$REPORT_FILE"
}

# Automated fix functions
fix_install_nvidia_driver() {
    print_status $YELLOW "🔧 Installing NVIDIA driver..."
    
    # Add NVIDIA repository
    wget -q -O - https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64/cuda-keyring_1.1-1_all.deb
    sudo dpkg -i cuda-keyring_1.1-1_all.deb
    sudo apt update
    
    # Install driver
    sudo apt install -y nvidia-driver-545 nvidia-dkms-545
    
    print_status $GREEN "✅ NVIDIA driver installation completed. Reboot required."
    
    # Log fix
    jq '.automated_fixes_applied += ["install_nvidia_driver"]' "$REPORT_FILE" > "${REPORT_FILE}.tmp" && mv "${REPORT_FILE}.tmp" "$REPORT_FILE"
}

fix_install_nvidia_container_runtime() {
    print_status $YELLOW "🔧 Installing NVIDIA Container Runtime..."
    
    # Install NVIDIA Container Toolkit
    curl -fsSL https://nvidia.github.io/libnvidia-container/gpgkey | sudo gpg --dearmor -o /usr/share/keyrings/nvidia-container-toolkit-keyring.gpg
    curl -s -L https://nvidia.github.io/libnvidia-container/stable/deb/nvidia-container-toolkit.list | \
        sed 's#deb https://#deb [signed-by=/usr/share/keyrings/nvidia-container-toolkit-keyring.gpg] https://#g' | \
        sudo tee /etc/apt/sources.list.d/nvidia-container-toolkit.list
    
    sudo apt update
    sudo apt install -y nvidia-container-toolkit
    
    # Configure Docker
    sudo nvidia-ctk runtime configure --runtime=docker
    sudo systemctl restart docker
    
    print_status $GREEN "✅ NVIDIA Container Runtime installed and configured"
    
    # Log fix
    jq '.automated_fixes_applied += ["install_nvidia_container_runtime"]' "$REPORT_FILE" > "${REPORT_FILE}.tmp" && mv "${REPORT_FILE}.tmp" "$REPORT_FILE"
}

fix_install_ollama() {
    print_status $YELLOW "🔧 Installing Ollama..."
    
    curl -fsSL https://ollama.com/install.sh | sh
    
    print_status $GREEN "✅ Ollama installation completed"
    
    # Log fix
    jq '.automated_fixes_applied += ["install_ollama"]' "$REPORT_FILE" > "${REPORT_FILE}.tmp" && mv "${REPORT_FILE}.tmp" "$REPORT_FILE"
}

fix_start_ollama() {
    print_status $YELLOW "🔧 Starting Ollama service..."
    
    nohup ollama serve > /var/log/ollama.log 2>&1 &
    sleep 5
    
    if pgrep -f "ollama serve" > /dev/null; then
        print_status $GREEN "✅ Ollama service started successfully"
        jq '.automated_fixes_applied += ["start_ollama"]' "$REPORT_FILE" > "${REPORT_FILE}.tmp" && mv "${REPORT_FILE}.tmp" "$REPORT_FILE"
    else
        print_status $RED "❌ Failed to start Ollama service"
    fi
}

fix_restart_ollama() {
    print_status $YELLOW "🔧 Restarting Ollama service..."
    
    pkill -f "ollama serve" || true
    sleep 3
    nohup ollama serve > /var/log/ollama.log 2>&1 &
    sleep 5
    
    if pgrep -f "ollama serve" > /dev/null; then
        print_status $GREEN "✅ Ollama service restarted successfully"
        jq '.automated_fixes_applied += ["restart_ollama"]' "$REPORT_FILE" > "${REPORT_FILE}.tmp" && mv "${REPORT_FILE}.tmp" "$REPORT_FILE"
    else
        print_status $RED "❌ Failed to restart Ollama service"
    fi
}

# Generate recommendations
generate_recommendations() {
    print_status $BLUE "💡 Generating optimization recommendations..."
    
    local recommendations='[]'
    
    # Analyze performance metrics
    local gpu_temp=$(jq -r '.performance_metrics.gpu_temperature_c // 0' "$REPORT_FILE")
    local gpu_util=$(jq -r '.performance_metrics.gpu_utilization_percent // 0' "$REPORT_FILE")
    local mem_usage=$(jq -r '.performance_metrics.memory_usage_percent // 0' "$REPORT_FILE")
    
    if (( $(echo "$gpu_temp > 80" | bc -l) )); then
        local rec='{"type": "thermal", "priority": "high", "message": "GPU temperature is high. Consider improving cooling or reducing workload.", "action": "Check case ventilation and thermal paste"}'
        recommendations=$(echo "$recommendations" | jq ". += [$rec]")
    fi
    
    if (( $(echo "$gpu_util < 30" | bc -l) )); then
        local rec='{"type": "performance", "priority": "medium", "message": "GPU utilization is low. Consider batch processing or larger models.", "action": "Optimize workload distribution"}'
        recommendations=$(echo "$recommendations" | jq ". += [$rec]")
    fi
    
    if (( $(echo "$mem_usage > 85" | bc -l) )); then
        local rec='{"type": "memory", "priority": "high", "message": "System memory usage is high. Consider adding more RAM.", "action": "Monitor memory usage and consider upgrading"}'
        recommendations=$(echo "$recommendations" | jq ". += [$rec]")
    fi
    
    # Update report
    jq ".recommendations = $recommendations" "$REPORT_FILE" > "${REPORT_FILE}.tmp" && mv "${REPORT_FILE}.tmp" "$REPORT_FILE"
}

# Apply automated fixes
apply_automated_fixes() {
    print_status $BLUE "🔧 Applying automated fixes..."
    
    local issues=$(jq -r '.gpu_diagnostics.nvidia.issues[]?, .gpu_diagnostics.amd.issues[]?, .ollama_diagnostics.issues[]? | select(.fix) | .fix' "$REPORT_FILE" 2>/dev/null || true)
    
    if [[ -z "$issues" ]]; then
        print_status $GREEN "✅ No automated fixes needed"
        return
    fi
    
    while IFS= read -r fix; do
        case "$fix" in
            "install_nvidia_driver")
                if [[ "${AUTO_FIX:-false}" == "true" ]]; then
                    fix_install_nvidia_driver
                else
                    print_status $YELLOW "⚠️  Suggested fix: install_nvidia_driver (use --auto-fix to apply)"
                fi
                ;;
            "install_nvidia_container_runtime")
                if [[ "${AUTO_FIX:-false}" == "true" ]]; then
                    fix_install_nvidia_container_runtime
                else
                    print_status $YELLOW "⚠️  Suggested fix: install_nvidia_container_runtime (use --auto-fix to apply)"
                fi
                ;;
            "install_ollama")
                if [[ "${AUTO_FIX:-false}" == "true" ]]; then
                    fix_install_ollama
                else
                    print_status $YELLOW "⚠️  Suggested fix: install_ollama (use --auto-fix to apply)"
                fi
                ;;
            "start_ollama")
                if [[ "${AUTO_FIX:-false}" == "true" ]]; then
                    fix_start_ollama
                else
                    print_status $YELLOW "⚠️  Suggested fix: start_ollama (use --auto-fix to apply)"
                fi
                ;;
            "restart_ollama")
                if [[ "${AUTO_FIX:-false}" == "true" ]]; then
                    fix_restart_ollama
                else
                    print_status $YELLOW "⚠️  Suggested fix: restart_ollama (use --auto-fix to apply)"
                fi
                ;;
        esac
    done <<< "$issues"
}

# Generate final report
generate_final_report() {
    print_status $BLUE "📋 Generating final diagnostic report..."
    
    local summary=$(jq '{
        timestamp: .diagnostic_timestamp,
        hostname: .hostname,
        overall_status: (
            if (.gpu_diagnostics.nvidia.status == "healthy" or .gpu_diagnostics.amd.status == "healthy") and .ollama_diagnostics.api_responsive then "healthy"
            elif (.gpu_diagnostics.nvidia.status == "driver_missing" and .gpu_diagnostics.amd.status == "not_configured") then "no_gpu"
            elif .ollama_diagnostics.status == "not_installed" then "ollama_missing"
            else "issues_detected"
            end
        ),
        total_issues: (
            [.gpu_diagnostics.nvidia.issues[]?, .gpu_diagnostics.amd.issues[]?, .ollama_diagnostics.issues[]?] | length
        ),
        critical_issues: (
            [.gpu_diagnostics.nvidia.issues[]?, .gpu_diagnostics.amd.issues[]?, .ollama_diagnostics.issues[]? | select(.severity == "critical")] | length
        ),
        fixes_applied: (.automated_fixes_applied | length),
        recommendations_count: (.recommendations | length)
    }' "$REPORT_FILE")
    
    jq ".summary = $summary" "$REPORT_FILE" > "${REPORT_FILE}.tmp" && mv "${REPORT_FILE}.tmp" "$REPORT_FILE"
    
    # Display summary
    echo ""
    print_status $BLUE "=== OLLAMA GPU DIAGNOSTIC SUMMARY ==="
    echo ""
    
    local overall_status=$(echo "$summary" | jq -r '.overall_status')
    local total_issues=$(echo "$summary" | jq -r '.total_issues')
    local critical_issues=$(echo "$summary" | jq -r '.critical_issues')
    local fixes_applied=$(echo "$summary" | jq -r '.fixes_applied')
    
    case "$overall_status" in
        "healthy")
            print_status $GREEN "✅ System Status: HEALTHY"
            ;;
        "no_gpu")
            print_status $RED "❌ System Status: NO GPU DETECTED"
            ;;
        "ollama_missing")
            print_status $RED "❌ System Status: OLLAMA NOT INSTALLED"
            ;;
        *)
            print_status $YELLOW "⚠️  System Status: ISSUES DETECTED"
            ;;
    esac
    
    echo ""
    print_status $BLUE "📊 Issues Found: $total_issues (Critical: $critical_issues)"
    print_status $BLUE "🔧 Fixes Applied: $fixes_applied"
    print_status $BLUE "📋 Full Report: $REPORT_FILE"
    echo ""
    
    # Display top recommendations
    local top_recs=$(jq -r '.recommendations[] | select(.priority == "high") | .message' "$REPORT_FILE" 2>/dev/null || true)
    if [[ -n "$top_recs" ]]; then
        print_status $YELLOW "💡 Top Recommendations:"
        while IFS= read -r rec; do
            echo "   • $rec"
        done <<< "$top_recs"
        echo ""
    fi
}

# Main execution function
main() {
    print_status $BLUE "🚀 Starting Ollama GPU Diagnostics v2.0.0"
    print_status $BLUE "📝 Log file: $LOG_FILE"
    print_status $BLUE "📊 Report file: $REPORT_FILE"
    echo ""
    
    # Parse command line arguments
    while [[ $# -gt 0 ]]; do
        case $1 in
            --auto-fix)
                export AUTO_FIX=true
                shift
                ;;
            --help)
                echo "Usage: $0 [--auto-fix] [--help]"
                echo ""
                echo "Options:"
                echo "  --auto-fix    Automatically apply fixes for detected issues"
                echo "  --help        Show this help message"
                exit 0
                ;;
            *)
                echo "Unknown option: $1"
                exit 1
                ;;
        esac
    done
    
    # Initialize report
    init_report
    
    # Run diagnostic steps
    collect_system_info
    diagnose_nvidia_gpu
    diagnose_amd_gpu
    diagnose_ollama
    collect_performance_metrics
    
    # Apply fixes and generate recommendations
    apply_automated_fixes
    generate_recommendations
    
    # Generate final report
    generate_final_report
    
    print_status $GREEN "✅ Diagnostic completed successfully"
    
    # Exit with appropriate code
    local critical_issues=$(jq -r '.summary.critical_issues' "$REPORT_FILE")
    if [[ "$critical_issues" -gt 0 ]]; then
        exit 2  # Critical issues found
    elif [[ "$(jq -r '.summary.total_issues' "$REPORT_FILE")" -gt 0 ]]; then
        exit 1  # Non-critical issues found
    else
        exit 0  # All good
    fi
}

# Script execution
if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
    main "$@"
fi

This comprehensive diagnostics script provides enterprise-grade troubleshooting capabilities for GPU-accelerated Ollama deployments. The automated problem detection and resolution system identifies common configuration issues, performance bottlenecks, and hardware problems while providing actionable recommendations for optimization.

Conclusion: Mastering GPU-Accelerated Ollama in Production

The journey to production-ready GPU-accelerated Ollama deployment requires mastering complex interactions between hardware, drivers, container runtimes, and orchestration platforms. This comprehensive guide has provided battle-tested configurations, optimization techniques, and troubleshooting methodologies that enable reliable, high-performance local AI infrastructure.

The key to success lies in understanding the complete GPU acceleration pipeline – from driver installation through container integration to application-level optimization. Whether deploying on NVIDIA CUDA or AMD ROCm platforms, the architectural principles and monitoring strategies outlined here provide the foundation for scalable, maintainable AI infrastructure.

As organizations increasingly adopt local AI strategies for privacy, cost optimization, and performance requirements, the techniques presented in this guide become essential competencies for DevOps engineers, AI practitioners, and technical leaders building the next generation of intelligent applications.

For continued learning and community discussion on GPU-accelerated AI deployments, visit Collabnix.com for the latest tutorials, case studies, and best practices from the global AI infrastructure community.

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Collabnix Team The Collabnix Team is a diverse collective of Docker, Kubernetes, and IoT experts united by a passion for cloud-native technologies. With backgrounds spanning across DevOps, platform engineering, cloud architecture, and container orchestration, our contributors bring together decades of combined experience from various industries and technical domains.
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