samtools/test_configure_behavior.sh at develop · Dedaniya08/samtools · GitHub

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#!/bin/bash
# Test script to simulate the enhanced CUDA auto-detection logic

echo "=== Simulating Enhanced Configure Script Behavior ==="
echo ""

# Step 1: Check for GPU hardware
echo "Checking for NVIDIA GPU hardware..."
gpu_detected=0

# Method 1: nvidia-smi
if command -v nvidia-smi >/dev/null 2>&1; then
    gpu_count=$(nvidia-smi -L 2>/dev/null | wc -l)
    if [ "$gpu_count" -gt 0 ]; then
        gpu_detected=1
        echo "✓ Found $gpu_count NVIDIA GPU(s) via nvidia-smi"
    fi
fi

# Method 2: /proc/driver/nvidia
if [ "$gpu_detected" -eq 0 ] && [ -d "/proc/driver/nvidia" ]; then
    if [ -r "/proc/driver/nvidia/version" ]; then
        gpu_detected=1
        echo "✓ NVIDIA driver detected in /proc/driver/nvidia"
    fi
fi

# Method 3: lspci
if [ "$gpu_detected" -eq 0 ] && command -v lspci >/dev/null 2>&1; then
    nvidia_devices=$(lspci 2>/dev/null | grep -i "nvidia.*\(vga\|3d\|display\)" | wc -l)
    if [ "$nvidia_devices" -gt 0 ]; then
        gpu_detected=1
        echo "✓ Found $nvidia_devices NVIDIA device(s) via lspci"
    fi
fi

if [ "$gpu_detected" -eq 0 ]; then
    echo ""
    echo "=========================================="
    echo "Configure would output:"
    echo "=========================================="
    echo "checking for NVIDIA GPU hardware... no"
    echo ""
    echo "================================================================="
    echo "No NVIDIA GPU hardware detected on this system."
    echo "CUDA GPU acceleration will be disabled."
    echo ""
    echo "If you have an NVIDIA GPU:"
    echo "  1. Install NVIDIA drivers: https://www.nvidia.com/drivers"
    echo "  2. Install CUDA toolkit: https://developer.nvidia.com/cuda-downloads"
    echo "  3. Reconfigure with: ./configure --enable-cuda"
    echo ""
    echo "If you want to use CPU-only mode, this is normal."
    echo "================================================================="
    echo ""
    echo "Result: enable_cuda=no"
    echo ""
    echo "Final configuration:"
    echo "  CUDA support: disabled"
    echo "  Build type: CPU-only"
    echo "  GPU acceleration: no"
    echo ""
    echo "You can now run 'make' to build samtools with CPU-only acceleration."
    exit 0
fi

# If GPU detected, check CUDA software
echo "✓ NVIDIA GPU detected"
echo ""
echo "Checking for CUDA software stack..."

if command -v nvcc >/dev/null 2>&1; then
    echo "✓ CUDA compiler (nvcc) found"
    # Would continue with CUDA functionality test...
    echo "✓ CUDA test would be performed here"
    echo ""
    echo "Result: enable_cuda=yes"
else
    echo "✗ CUDA compiler (nvcc) not found"
    echo ""
    echo "=========================================="
    echo "Configure would output:"
    echo "=========================================="
    echo ""
    echo "================================================================="
    echo "NVIDIA GPU detected but CUDA toolkit not installed."
    echo ""
    echo "To enable GPU acceleration:"
    echo "  1. Install CUDA toolkit: https://developer.nvidia.com/cuda-downloads"
    echo "  2. Make sure 'nvcc' is in your PATH"
    echo "  3. Reconfigure with: ./configure --enable-cuda"
    echo ""
    echo "Building without GPU acceleration for now."
    echo "================================================================="
    echo ""
    echo "Result: enable_cuda=no"
fi