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94 lines
2.9 KiB
94 lines
2.9 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#include "LstmCompute.h"
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#include "hl_recurrent_apply.cuh"
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#include "paddle/utils/Util.h"
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namespace paddle {
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void LstmCompute::init(LayerConfig &config) {
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activeNode_ = hlActiveType(config.active_type());
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activeGate_ = hlActiveType(config.active_gate_type());
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activeState_ = hlActiveType(config.active_state_type());
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}
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template <>
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void LstmCompute::forwardOneSequence<0>(hl_lstm_value value, int frameSize) {
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hl_cpu_lstm_forward(hppl::forward::lstm(),
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value,
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frameSize,
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activeNode_,
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activeGate_,
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activeState_);
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}
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template <>
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void LstmCompute::backwardOneSequence<0>(hl_lstm_value value,
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hl_lstm_grad grad,
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int frameSize) {
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hl_cpu_lstm_backward(hppl::backward::lstm(),
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value,
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grad,
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frameSize,
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activeNode_,
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activeGate_,
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activeState_);
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}
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template <>
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void LstmCompute::forwardBatch<0>(hl_lstm_value value,
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int frameSize,
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int batchSize) {
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for (int b = 0; b < batchSize; b++) {
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forwardOneSequence<0>(value, frameSize);
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value.gateValue += frameSize * 4;
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value.stateValue += frameSize;
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value.stateActiveValue += frameSize;
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value.outputValue += frameSize;
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if (value.prevStateValue) {
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value.prevStateValue += frameSize;
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}
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}
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}
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template <>
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void LstmCompute::backwardBatch<0>(hl_lstm_value value,
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hl_lstm_grad grad,
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int frameSize,
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int batchSize) {
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for (int b = 0; b < batchSize; b++) {
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backwardOneSequence<0>(value, grad, frameSize);
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value.gateValue += frameSize * 4;
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value.stateValue += frameSize;
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value.stateActiveValue += frameSize;
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value.outputValue += frameSize;
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if (value.prevStateValue) {
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value.prevStateValue += frameSize;
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}
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grad.gateGrad += frameSize * 4;
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grad.stateGrad += frameSize;
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grad.stateActiveGrad += frameSize;
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grad.outputGrad += frameSize;
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if (grad.prevStateGrad) {
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grad.prevStateGrad += frameSize;
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}
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}
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}
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} // namespace paddle
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