icemelon9 commented on a change in pull request #4644: [Relay][AutoTVM] Relay
op strategy
URL: https://github.com/apache/incubator-tvm/pull/4644#discussion_r380295907
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File path: src/relay/op/nn/convolution.h
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@@ -153,6 +153,16 @@ bool Conv2DRel(const Array<Type>& types, int num_inputs,
const Attrs& attrs,
<< " But got " << out_layout;
Array<IndexExpr> dshape_nchw = trans_in_layout.ForwardShape(data->shape);
+ bool is_depthwise = false;
+ if (param->groups > 1) {
+ CHECK(weight && weight->shape.defined()) <<
+ "Weight shape must be specified when groups is greater than 1.";
+ Array<IndexExpr> wshape_oihw =
trans_kernel_layout.ForwardShape(weight->shape);
+ if (tvm::tir::Equal(param->groups, dshape_nchw[1]) &&
+ tvm::tir::Equal(param->groups, wshape_oihw[0])) {
Review comment:
In depthwise conv2d, weight's out_channel == groups == input's in_channel,
and weight's in_channel == channel multiplier. The output's channel = groups *
channel multiplier.
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