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[Pass] fix conv_bn_fuse_pass when conv's weight is perlayer quantization #10097

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Mar 16, 2023
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[Pass] fix conv_bn_fuse_pass when conv's weight is perlayer quantization #10097

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16 changes: 13 additions & 3 deletions lite/core/optimizer/mir/fusion/conv_bn_fuser.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -158,14 +158,24 @@ void ConvBNFuser::InsertNewNode(SSAGraph* graph, const key2nodes_t& matched) {
auto conv_weight_d = conv_weight_t->mutable_data<int8_t>();
// compute new conv_weight for int8
auto weight_scale = conv_op_desc->GetInputScale(weight_name);
std::vector<float> weight_scale_dup(alpha_tensor.numel(), 0);
if (weight_scale.size() == 1) {
for (int i = 0; i < weight_scale_dup.size(); i++) {
weight_scale_dup[i] = weight_scale[0];
}
} else {
for (int i = 0; i < weight_scale_dup.size(); i++) {
weight_scale_dup[i] = weight_scale[i];
}
}
if (conv_type_ == "conv2d_transpose") {
int cout = conv_weight_t->dims()[1] * groups;
int cin_group = conv_weight_t->dims()[0] / groups;
int c_size = cout * conv_weight_t->dims()[2] * conv_weight_t->dims()[3];
int hw = conv_weight_t->dims()[2] * conv_weight_t->dims()[3];
for (int k = 0; k < cin_group; ++k) {
for (int i = 0; i < cout; ++i) {
weight_scale[i] *= fabsf(alpha_data[i]);
weight_scale_dup[i] *= fabsf(alpha_data[i]);
if (alpha_data[i] < 0.f) {
auto ptr_row = conv_weight_d + k * c_size + i * hw;
for (int j = 0; j < hw; ++j) {
Expand All @@ -176,7 +186,7 @@ void ConvBNFuser::InsertNewNode(SSAGraph* graph, const key2nodes_t& matched) {
}
} else {
for (int i = 0; i < h; ++i) {
weight_scale[i] *= fabsf(alpha_data[i]);
weight_scale_dup[i] *= fabsf(alpha_data[i]);
if (alpha_data[i] < 0.f) {
auto ptr_row = conv_weight_d + i * w;
for (int j = 0; j < w; ++j) {
Expand All @@ -185,7 +195,7 @@ void ConvBNFuser::InsertNewNode(SSAGraph* graph, const key2nodes_t& matched) {
}
}
}
conv_op_desc->SetInputScale(weight_name, weight_scale);
conv_op_desc->SetInputScale(weight_name, weight_scale_dup);
} else if (is_weight_quantization) {
std::string scale_name = conv_weight_name + "_quant_scale";
if (conv_op_desc->HasAttr(scale_name)) {
Expand Down