Fix cudaErrorECCNotCorrectable: Uncorrectable Memory Error

Overview

cudaErrorECCNotCorrectable indicates uncorrectable memory errors detected by ECC. This is a serious hardware issue.

Error Messages

CUDA error: ECC not correctable
cudaErrorECCNotCorrectable

Common Causes

• •Failing GPU memory
• •Overheating GPU
• •Power supply issues
• •Hardware degradation

Solutions

nvidia-smi -q -d ECC

nvidia-smi -q -d TEMPERATURE

Prevention Tips

• ✓Monitor ECC error counts regularly
• ✓Ensure adequate cooling
• ✓RMA GPU with high error rates

Code Examples

Before (Problematic)

Ignoring hardware errors.

cudaGetLastError();  // Ignore and hope

After (Fixed)

Treat as critical.

if (err == cudaErrorECCNotCorrectable) {
    log_critical("GPU memory failure");
    exit(1);
}

Frequently Asked Questions

Related Errors

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