masahi commented on a change in pull request #10177:
URL: https://github.com/apache/tvm/pull/10177#discussion_r800299748
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File path: python/tvm/contrib/cutlass/gen_conv2d.py
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@@ -252,6 +252,8 @@ def select_op(
lambda align: all([dim % align == 0 for dim in [IC, OC]]),
use_3xtf32,
profile_all_alignments,
+ # Use fp32 accumulation for wgrad to align with cuDNN
+ accumlator_dtype="float32" if conv_kind == ConvKind.Wgrad else
out_dtype,
Review comment:
Here, we force the accum dtype to be fp32 if wgrad.
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