// Do one forward pass of convTrans layer and check to see if its output
// matches the given result
void doOneConvtTest(size_t imgSize,
size_t output_x,
size_t stride,
size_t padding,
size_t filter_size,
MatrixPtr& result) {
TestConfig configt;
configt.biasSize = 1;
configt.layerConfig.set_type("exconvt");
configt.layerConfig.set_num_filters(1);
configt.layerConfig.set_partial_sum(1);
configt.layerConfig.set_shared_biases(true);
configt.inputDefs.push_back(
{INPUT_DATA, "layer_0", output_x * output_x, filter_size * filter_size});
LayerInputConfig* input = configt.layerConfig.add_inputs();
ConvConfig* conv = input->mutable_conv_conf();
conv->set_filter_size(filter_size);
conv->set_filter_size_y(filter_size);
conv->set_channels(1);
conv->set_padding(padding);
conv->set_padding_y(padding);
conv->set_stride(stride);
conv->set_stride_y(stride);
conv->set_groups(1);
conv->set_filter_channels(1);
conv->set_img_size(imgSize);
conv->set_output_x(output_x);
configt.layerConfig.set_size(conv->img_size() * conv->img_size() *
configt.layerConfig.num_filters());
configt.layerConfig.set_name("convTrans");
std::vector<DataLayerPtr> dataLayers;
LayerMap layerMap;
vector<Argument> datas;
initDataLayer(
configt, &dataLayers, &datas, &layerMap, "convTrans", 1, false, false);
dataLayers[0]->getOutputValue()->zeroMem();
dataLayers[0]->getOutputValue()->add(1.0);
// test layer initialize
std::vector<ParameterPtr> parameters;
LayerPtr convtLayer;
initTestLayer(configt, &layerMap, ¶meters, &convtLayer);
convtLayer->getBiasParameter()->zeroMem();
convtLayer->getParameters()[0]->zeroMem();
convtLayer->getParameters()[0]->getBuf(PARAMETER_VALUE)->add(1.0);
convtLayer->forward(PASS_GC);
checkMatrixEqual(convtLayer->getOutputValue(), result);
}
// Test that the convTrans forward is the same as conv backward
TEST(Layer, convTransLayerFwd) {
// Setting up conv-trans layer
TestConfig configt;
configt.biasSize = 3;
configt.layerConfig.set_type("exconvt");
configt.layerConfig.set_num_filters(3);
configt.layerConfig.set_partial_sum(1);
configt.layerConfig.set_shared_biases(true);
configt.inputDefs.push_back({INPUT_DATA, "layer_0", 1024, 384});
LayerInputConfig* input = configt.layerConfig.add_inputs();
ConvConfig* conv = input->mutable_conv_conf();
conv->set_filter_size(2);
conv->set_filter_size_y(4);
conv->set_channels(16);
conv->set_padding(0);
conv->set_padding_y(1);
conv->set_stride(2);
conv->set_stride_y(2);
conv->set_groups(1);
conv->set_filter_channels(3 / conv->groups());
conv->set_img_size(16);
conv->set_output_x(outputSize(conv->img_size(), conv->filter_size(),
conv->padding(), conv->stride(),
/* caffeMode */ true));
configt.layerConfig.set_size(conv->img_size() * conv->img_size() *
configt.layerConfig.num_filters());
configt.layerConfig.set_name("convTrans");
// data layer initialize
std::vector<DataLayerPtr> dataLayers;
LayerMap layerMap;
vector<Argument> datas;
initDataLayer(configt, &dataLayers, &datas, &layerMap, "convTrans",
100, false, false);
// test layer initialize
std::vector<ParameterPtr> parameters;
LayerPtr convtLayer;
initTestLayer(configt, &layerMap, ¶meters, &convtLayer);
convtLayer->getBiasParameter()->zeroMem();
convtLayer->forward(PASS_GC);
// Setting up conv-layer config
TestConfig config;
config.biasSize = 16;
config.layerConfig.set_type("exconv");
config.layerConfig.set_num_filters(16);
config.layerConfig.set_partial_sum(1);
config.layerConfig.set_shared_biases(true);
config.inputDefs.push_back({INPUT_DATA, "layer_1", 768, 384});
input = config.layerConfig.add_inputs();
conv = input->mutable_conv_conf();
conv->set_filter_size(2);
conv->set_filter_size_y(4);
conv->set_channels(3);
conv->set_padding(0);
conv->set_padding_y(1);
conv->set_stride(2);
conv->set_stride_y(2);
conv->set_groups(1);
conv->set_filter_channels(conv->channels() / conv->groups());
conv->set_img_size(16);
conv->set_output_x(outputSize(conv->img_size(), conv->filter_size(),
conv->padding(), conv->stride(),
/* caffeMode */ true));
config.layerConfig.set_size(conv->output_x() * conv->output_x() *
config.layerConfig.num_filters());
config.layerConfig.set_name("conv");
// data layer initialize
std::vector<DataLayerPtr> dataLayers2;
LayerMap layerMap2;
vector<Argument> datas2;
initDataLayer(config, &dataLayers2, &datas2, &layerMap2, "conv",
100, false, false);
// test layer initialize
std::vector<ParameterPtr> parameters2;
LayerPtr convLayer;
initTestLayer(config, &layerMap2, ¶meters2, &convLayer);
// Sync convLayer and convtLayer parameter
convLayer->getBiasParameter()->zeroMem();
convLayer->getParameters()[0]->getBuf(PARAMETER_VALUE)->copyFrom(
*(convtLayer->getParameters()[0]->getBuf(PARAMETER_VALUE)));
// Set convLayer outputGrad as convTransLayer input value
convLayer->forward(PASS_GC);
convLayer->getOutput().grad->copyFrom(*(dataLayers[0]->getOutputValue()));
vector<int> callbackFlags(parameters2.size(), 0);
auto callback = [&](Parameter* para) { ++callbackFlags[para->getID()]; };
convLayer->backward(callback);
// Check that the convLayer backward is the same as convTransLayer forward
checkMatrixEqual(convtLayer->getOutputValue(),
dataLayers2[0]->getOutputGrad());
}