Fix cudaErrorFileNotFound: Missing CUDA File

Overview

cudaErrorFileNotFound occurs when CUDA cannot locate required files like PTX, cubin, or shared libraries.

Error Messages

CUDA error: file not found
cudaErrorFileNotFound

Common Causes

• •PTX/cubin file missing
• •Wrong file path
• •Missing CUDA libraries
• •Deployment missing files

Solutions

ls -la kernel.ptx
find . -name "*.ptx"

export LD_LIBRARY_PATH=/usr/local/cuda/lib64:$LD_LIBRARY_PATH

Prevention Tips

• ✓Use absolute paths
• ✓Include all files in deployment
• ✓Set LD_LIBRARY_PATH

Code Examples

Before (Problematic)

May fail if CWD wrong.

cuModuleLoad(&mod, "kernel.ptx");  // Relative path

After (Fixed)

Absolute path.

cuModuleLoad(&mod, "/opt/app/kernel.ptx");

Frequently Asked Questions

Related Errors

Need help debugging CUDA errors? Download RightNow AI for intelligent error analysis and optimization suggestions.