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Summary:
D80992628 introduced SWA FWD kernel changes which did not support decode kernels (i.e., supporting sm100_fmha_fwd but not sm100_fmha_gen).
Similarly, softmax_scale introduced in D82788784 did not support decode kernels either.

In blackwell_fmha_test, the these parameters are dropped during decode kernel selection (https://www.internalfb.com/code/fbsource/[cd7066706035]/fbcode/deeplearning/fbgemm/fbgemm_gpu/experimental/gen_ai/test/attention/blackwell_fmha_test.py?lines=182)

To avoid confusion, do not test test_decode with ignored parameters.

Reviewed By: Aya-ZIbra, sryap

Differential Revision: D82991496

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@meta-cla meta-cla bot added the cla signed label Sep 22, 2025
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@Alkaid-Benetnash has exported this pull request. If you are a Meta employee, you can view the originating diff in D82991496.

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@Alkaid-Benetnash has exported this pull request. If you are a Meta employee, you can view the originating diff in D82991496.

Alkaid-Benetnash added a commit to Alkaid-Benetnash/FBGEMM-1 that referenced this pull request Sep 23, 2025
Summary:
Pull Request resolved: pytorch#4911

X-link: facebookresearch/FBGEMM#1936

D80992628 introduced SWA FWD kernel changes which did not support decode kernels (i.e., supporting sm100_fmha_fwd but not sm100_fmha_gen).
Similarly, softmax_scale introduced in D82788784 did not support decode kernels either.

In blackwell_fmha_test, the these parameters are dropped during decode kernel selection (https://www.internalfb.com/code/fbsource/[cd7066706035]/fbcode/deeplearning/fbgemm/fbgemm_gpu/experimental/gen_ai/test/attention/blackwell_fmha_test.py?lines=182)

To avoid confusion, do not test test_decode with ignored parameters.

Reviewed By: Aya-ZIbra, sryap

Differential Revision: D82991496
Summary:

X-link: facebookresearch/FBGEMM#1936

D80992628 introduced SWA FWD kernel changes which did not support decode kernels (i.e., supporting sm100_fmha_fwd but not sm100_fmha_gen).
Similarly, softmax_scale introduced in D82788784 did not support decode kernels either.

In blackwell_fmha_test, the these parameters are dropped during decode kernel selection (https://www.internalfb.com/code/fbsource/[cd7066706035]/fbcode/deeplearning/fbgemm/fbgemm_gpu/experimental/gen_ai/test/attention/blackwell_fmha_test.py?lines=182)

To avoid confusion, do not test test_decode with ignored parameters.

Reviewed By: Aya-ZIbra, sryap

Differential Revision: D82991496
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@Alkaid-Benetnash has exported this pull request. If you are a Meta employee, you can view the originating diff in D82991496.

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This pull request has been merged in 826064d.

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