ollama - 💡(How to fix) Fix Memory layout cannot be allocated with num_gpu = N [2 comments, 2 participants]

As per title i got this 500 error, memory layout cannot be allocated with num_gpu = N, where N is the number of GPU layer.

Fix Plan

The fix involves reducing the number of GPUs allocated or adjusting the memory allocation settings in Ollama.

Steps to Fix

• Downgrade Ollama: Try downgrading to a previous version where the issue didn't occur.
• Reduce num_gpu: Reduce the num_gpu parameter to a lower value, e.g., num_gpu = 1 or num_gpu = 4, depending on available resources.
• Adjust Memory Settings: Adjust Ollama's memory allocation settings to optimize memory usage.

Example Code

To reduce num_gpu, modify your Ollama configuration file or startup script:

# Before
num_gpu = 26

# After
num_gpu = 4  # or another suitable value

Alternatively, you can try adjusting memory settings using environment variables or configuration files, depending on Ollama's documentation.

Verification

After applying the fix, restart your application and verify that the memory layout cannot be allocated error is resolved by checking the logs:

# Check logs for error messages
grep "memory layout cannot be allocated" /path/to/logs

If no error messages are found, the fix was successful.

Extra Tips

• Refer to Ollama's documentation for specific guidance on memory management and GPU allocation.
• Consider monitoring system resources to prevent similar issues in the future.