# ROCm & AMD GPU Computing Skill

## Hardware
- GPU: AMD Radeon RX 6800 XT (Navi 21)
- VRAM: 16GB
- Architecture: gfx1030
- Kernel: 6.8.0-55-generic (with amdgpu-dkms)

## Installed ROCm Components
- ROCm 6.3.2
- rocminfo
- rocm-smi
- hip-runtime-amd
- miopen-hip
- rocblas
- rocfft
- rocrand

## Essential Commands

### GPU Monitoring
```bash
rocm-smi                           # GPU status
rocm-smi --showproductname         # GPU info
rocm-smi --showpid                 # Show processes
rocminfo                           # Detailed ROCm info
```

### Environment Variables
```bash
# Add to ~/.bashrc for permanent setup
export PATH=/opt/rocm/bin:$PATH
export LD_LIBRARY_PATH=/opt/rocm/lib:$LD_LIBRARY_PATH
```

### PyTorch with ROCm
```bash
# Install PyTorch for ROCm
pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/rocm6.0

# Verify GPU access
python -c "import torch; print(torch.cuda.is_available()); print(torch.cuda.get_device_name(0))"
```

### Docker with ROCm
```bash
docker run -it --device=/dev/kfd --device=/dev/dri --group-add video rocm/pytorch:latest
```

## Performance Tuning
- Set `HSA_OVERRIDE_GFX_VERSION=10.3.0` for compatibility
- GPU temperature: Check with `rocm-smi` (normal <85°C)
- Power limit: 264W (default)

## Common Issues
- "No ROCm-capable GPU": Check kernel is 6.8.0-55, not 6.17
- Missing libraries: Ensure /opt/rocm/lib is in LD_LIBRARY_PATH
- Permission denied: User must be in 'render' and 'video' groups