masahi commented on a change in pull request #10495:
URL: https://github.com/apache/tvm/pull/10495#discussion_r819929615
##########
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:
yup sorry about this. Can you document what "algo = 1" corresponds?
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