[GDN] Restrict chunk_delta_h Blackwell autotune stages#946
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…h_blockdim64 on blackwell Made-with: Cursor
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This pull request introduces support for NVIDIA Blackwell GPUs in the Triton autotune configurations of fla/ops/common/chunk_delta_h.py. Specifically, it imports IS_NVIDIA_BLACKWELL and updates the autotuning configs to set num_stages to [4] when running on Blackwell architecture. There are no review comments, so no additional feedback is provided.
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chunk_delta_hautotune configs tonum_stages=4on Blackwell while leaving non-Blackwell candidate order unchanged.