cudnn prerelease_3:
Improvements over prerelease 2:
[Feature] Added SDPA flash attention backward node.
[Bug fix] Resolved an issue where the computed Alibi slopes were copied onto GPU memory on default stream instead of user specified stream in the handle.
[Bug fix] Fix windows compilation error when pedantic warnings are treated as errors.
[Bug fix] Fixed issue in causal padding where the masked values were `std::numeric_limits<float>::min()` instead of `std::numeric_limits<float>::lowest()`
Under investigation and development:
- We are still working on additional features for SDPA back prop.
- Better error messages and logging