Zero-grad more aggressively to save memory #106

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Open

cchan wants to merge 1 commit into karpathy:master from cchan:patch-1

cchan commented Jan 18, 2023

Takes a full copy of grad off the peak memory usage.

Numbers based on torch.cuda.max_memory_allocated():

For gpt-nano: 32019456 to 31666688
For gpt2-xl: 30634800640 to 24607903232 (6 gigabytes!)


          Zero-grad more aggressively to save memory

756c302

Owner

karpathy commented Jan 18, 2023

:O ???

cchan mentioned this pull request

Zero-grad more aggressively to save memory karpathy/nanoGPT#71

Merged

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet