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path: root/src/armnnDeserializer/Deserializer.cpp
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-rw-r--r--src/armnnDeserializer/Deserializer.cpp133
1 files changed, 133 insertions, 0 deletions
diff --git a/src/armnnDeserializer/Deserializer.cpp b/src/armnnDeserializer/Deserializer.cpp
index af6ff842a7..2d9194a350 100644
--- a/src/armnnDeserializer/Deserializer.cpp
+++ b/src/armnnDeserializer/Deserializer.cpp
@@ -270,6 +270,7 @@ m_ParserFunctions(Layer_MAX+1, &IDeserializer::DeserializerImpl::ParseUnsupporte
m_ParserFunctions[Layer_SwitchLayer] = &DeserializerImpl::ParseSwitch;
m_ParserFunctions[Layer_TransposeConvolution2dLayer] = &DeserializerImpl::ParseTransposeConvolution2d;
m_ParserFunctions[Layer_TransposeLayer] = &DeserializerImpl::ParseTranspose;
+ m_ParserFunctions[Layer_UnidirectionalSequenceLstmLayer] = &DeserializerImpl::ParseUnidirectionalSequenceLstm;
}
LayerBaseRawPtr IDeserializer::DeserializerImpl::GetBaseLayer(const GraphPtr& graphPtr, unsigned int layerIndex)
@@ -404,6 +405,8 @@ LayerBaseRawPtr IDeserializer::DeserializerImpl::GetBaseLayer(const GraphPtr& gr
return graphPtr->layers()->Get(layerIndex)->layer_as_TransposeConvolution2dLayer()->base();
case Layer::Layer_TransposeLayer:
return graphPtr->layers()->Get(layerIndex)->layer_as_TransposeLayer()->base();
+ case Layer::Layer_UnidirectionalSequenceLstmLayer:
+ return graphPtr->layers()->Get(layerIndex)->layer_as_UnidirectionalSequenceLstmLayer()->base();
case Layer::Layer_NONE:
default:
throw ParseException(fmt::format("Layer type {} not recognized", layerType));
@@ -3325,4 +3328,134 @@ void IDeserializer::DeserializerImpl::ParseStandIn(GraphPtr graph, unsigned int
RegisterOutputSlots(graph, layerIndex, layer);
}
+armnn::UnidirectionalSequenceLstmDescriptor IDeserializer::DeserializerImpl::GetUnidirectionalSequenceLstmDescriptor(
+ UnidirectionalSequenceLstmDescriptorPtr descriptor)
+{
+ armnn::UnidirectionalSequenceLstmDescriptor desc;
+
+ desc.m_ActivationFunc = descriptor->activationFunc();
+ desc.m_ClippingThresCell = descriptor->clippingThresCell();
+ desc.m_ClippingThresProj = descriptor->clippingThresProj();
+ desc.m_CifgEnabled = descriptor->cifgEnabled();
+ desc.m_PeepholeEnabled = descriptor->peepholeEnabled();
+ desc.m_ProjectionEnabled = descriptor->projectionEnabled();
+ desc.m_LayerNormEnabled = descriptor->layerNormEnabled();
+ desc.m_TimeMajor = descriptor->timeMajor();
+
+ return desc;
+}
+
+void IDeserializer::DeserializerImpl::ParseUnidirectionalSequenceLstm(GraphPtr graph, unsigned int layerIndex)
+{
+ CHECK_LAYERS(graph, 0, layerIndex);
+
+ auto inputs = GetInputs(graph, layerIndex);
+ CHECK_VALID_SIZE(inputs.size(), 3);
+
+ auto outputs = GetOutputs(graph, layerIndex);
+ CHECK_VALID_SIZE(outputs.size(), 1);
+
+ auto flatBufferLayer = graph->layers()->Get(layerIndex)->layer_as_UnidirectionalSequenceLstmLayer();
+ auto layerName = GetLayerName(graph, layerIndex);
+ auto flatBufferDescriptor = flatBufferLayer->descriptor();
+ auto flatBufferInputParams = flatBufferLayer->inputParams();
+
+ auto descriptor = GetUnidirectionalSequenceLstmDescriptor(flatBufferDescriptor);
+
+ armnn::LstmInputParams lstmInputParams;
+
+ armnn::ConstTensor inputToForgetWeights = ToConstTensor(flatBufferInputParams->inputToForgetWeights());
+ armnn::ConstTensor inputToCellWeights = ToConstTensor(flatBufferInputParams->inputToCellWeights());
+ armnn::ConstTensor inputToOutputWeights = ToConstTensor(flatBufferInputParams->inputToOutputWeights());
+ armnn::ConstTensor recurrentToForgetWeights = ToConstTensor(flatBufferInputParams->recurrentToForgetWeights());
+ armnn::ConstTensor recurrentToCellWeights = ToConstTensor(flatBufferInputParams->recurrentToCellWeights());
+ armnn::ConstTensor recurrentToOutputWeights = ToConstTensor(flatBufferInputParams->recurrentToOutputWeights());
+ armnn::ConstTensor forgetGateBias = ToConstTensor(flatBufferInputParams->forgetGateBias());
+ armnn::ConstTensor cellBias = ToConstTensor(flatBufferInputParams->cellBias());
+ armnn::ConstTensor outputGateBias = ToConstTensor(flatBufferInputParams->outputGateBias());
+
+ lstmInputParams.m_InputToForgetWeights = &inputToForgetWeights;
+ lstmInputParams.m_InputToCellWeights = &inputToCellWeights;
+ lstmInputParams.m_InputToOutputWeights = &inputToOutputWeights;
+ lstmInputParams.m_RecurrentToForgetWeights = &recurrentToForgetWeights;
+ lstmInputParams.m_RecurrentToCellWeights = &recurrentToCellWeights;
+ lstmInputParams.m_RecurrentToOutputWeights = &recurrentToOutputWeights;
+ lstmInputParams.m_ForgetGateBias = &forgetGateBias;
+ lstmInputParams.m_CellBias = &cellBias;
+ lstmInputParams.m_OutputGateBias = &outputGateBias;
+
+ armnn::ConstTensor inputToInputWeights;
+ armnn::ConstTensor recurrentToInputWeights;
+ armnn::ConstTensor cellToInputWeights;
+ armnn::ConstTensor inputGateBias;
+ if (!descriptor.m_CifgEnabled)
+ {
+ inputToInputWeights = ToConstTensor(flatBufferInputParams->inputToInputWeights());
+ recurrentToInputWeights = ToConstTensor(flatBufferInputParams->recurrentToInputWeights());
+ inputGateBias = ToConstTensor(flatBufferInputParams->inputGateBias());
+
+ lstmInputParams.m_InputToInputWeights = &inputToInputWeights;
+ lstmInputParams.m_RecurrentToInputWeights = &recurrentToInputWeights;
+ lstmInputParams.m_InputGateBias = &inputGateBias;
+
+ if (descriptor.m_PeepholeEnabled)
+ {
+ cellToInputWeights = ToConstTensor(flatBufferInputParams->cellToInputWeights());
+ lstmInputParams.m_CellToInputWeights = &cellToInputWeights;
+ }
+ }
+
+ armnn::ConstTensor projectionWeights;
+ armnn::ConstTensor projectionBias;
+ if (descriptor.m_ProjectionEnabled)
+ {
+ projectionWeights = ToConstTensor(flatBufferInputParams->projectionWeights());
+ projectionBias = ToConstTensor(flatBufferInputParams->projectionBias());
+
+ lstmInputParams.m_ProjectionWeights = &projectionWeights;
+ lstmInputParams.m_ProjectionBias = &projectionBias;
+ }
+
+ armnn::ConstTensor cellToForgetWeights;
+ armnn::ConstTensor cellToOutputWeights;
+ if (descriptor.m_PeepholeEnabled)
+ {
+ cellToForgetWeights = ToConstTensor(flatBufferInputParams->cellToForgetWeights());
+ cellToOutputWeights = ToConstTensor(flatBufferInputParams->cellToOutputWeights());
+
+ lstmInputParams.m_CellToForgetWeights = &cellToForgetWeights;
+ lstmInputParams.m_CellToOutputWeights = &cellToOutputWeights;
+ }
+
+ armnn::ConstTensor inputLayerNormWeights;
+ armnn::ConstTensor forgetLayerNormWeights;
+ armnn::ConstTensor cellLayerNormWeights;
+ armnn::ConstTensor outputLayerNormWeights;
+ if (descriptor.m_LayerNormEnabled)
+ {
+ if (!descriptor.m_CifgEnabled)
+ {
+ inputLayerNormWeights = ToConstTensor(flatBufferInputParams->inputLayerNormWeights());
+ lstmInputParams.m_InputLayerNormWeights = &inputLayerNormWeights;
+ }
+ forgetLayerNormWeights = ToConstTensor(flatBufferInputParams->forgetLayerNormWeights());
+ cellLayerNormWeights = ToConstTensor(flatBufferInputParams->cellLayerNormWeights());
+ outputLayerNormWeights = ToConstTensor(flatBufferInputParams->outputLayerNormWeights());
+
+ lstmInputParams.m_ForgetLayerNormWeights = &forgetLayerNormWeights;
+ lstmInputParams.m_CellLayerNormWeights = &cellLayerNormWeights;
+ lstmInputParams.m_OutputLayerNormWeights = &outputLayerNormWeights;
+ }
+
+ IConnectableLayer* layer = m_Network->AddUnidirectionalSequenceLstmLayer(descriptor,
+ lstmInputParams,
+ layerName.c_str());
+
+ armnn::TensorInfo outputTensorInfo1 = ToTensorInfo(outputs[0]);
+ layer->GetOutputSlot(0).SetTensorInfo(outputTensorInfo1);
+
+ RegisterInputSlots(graph, layerIndex, layer);
+ RegisterOutputSlots(graph, layerIndex, layer);
+}
+
} // namespace armnnDeserializer