masahi commented on a change in pull request #10495:
URL: https://github.com/apache/tvm/pull/10495#discussion_r819930922
##########
File path: python/tvm/contrib/cudnn.py
##########
@@ -741,18 +741,22 @@ def conv_backward_data(
tensor_format, pad, stride, dilation, dy.shape, w.shape,
output_padding, groups
)
- algo = conv_backward_data_find_algo(
- tensor_format,
- pad,
- stride,
- dilation,
- list(dy.shape),
- list(w.shape),
- dx_shape,
- dy.dtype,
- conv_dtype,
- groups,
- )
+ if exists():
+ # When cudnn exists, find the backward data algo
+ algo = conv_backward_data_find_algo(
+ tensor_format,
+ pad,
+ stride,
+ dilation,
+ list(dy.shape),
+ list(w.shape),
+ dx_shape,
+ dy.dtype,
+ conv_dtype,
+ groups,
+ )
+ else:
+ algo = 1
Review comment:
ok
https://github.com/apache/tvm/blob/d35b858ceb5c7157c3faa78c88eb8f8971ba5e96/src/runtime/contrib/cudnn/conv_backward.cc#L91
We don't document the algo name for forward conv2d either, so scratch my
comment above.
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