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#ifndef CAFFE2_OPERATORS_RECURRENT_BLOB_FETCHER_OP_H_
#define CAFFE2_OPERATORS_RECURRENT_BLOB_FETCHER_OP_H_
#include "caffe2/core/context.h"
#include "caffe2/core/logging.h"
#include "caffe2/core/operator.h"
#include "caffe2/core/tensor.h"
#include "caffe2/operators/rnn/recurrent_network_op.h"
#include "google/protobuf/text_format.h"
#include <string>
namespace caffe2 {
template <class Context>
class RecurrentNetworkBlobFetcherOp final : public Operator<Context> {
public:
USE_OPERATOR_CONTEXT_FUNCTIONS;
explicit RecurrentNetworkBlobFetcherOp(const OperatorDef& operator_def, Workspace* ws)
: Operator<Context>(operator_def, ws) {
prefix_ = this->template GetSingleArgument<std::string>("prefix", "rnn");
ws_ = ws;
}
bool RunOnDevice() override {
const detail::ScratchWorkspaces& scratch =
this->template Input<detail::ScratchWorkspaces>(0);
const std::vector<std::shared_ptr<Workspace>>& stepWorkspaces =
scratch.stepWorkspaces;
std::vector<std::string> blob_names_vector = {};
for (const auto i : c10::irange(stepWorkspaces.size())) {
Workspace* currentStepWorkspace = stepWorkspaces[i].get();
std::vector<std::string> blob_names = currentStepWorkspace->LocalBlobs();
for (auto& blob_name : blob_names) {
const Blob* currentBlob = currentStepWorkspace->GetBlob(blob_name);
const auto& currentTensor = currentBlob->Get<Tensor>();
std::string newBlobName =
prefix_ + std::string("_") + blob_name + c10::to_string(i);
blob_names_vector.push_back(newBlobName);
BlobGetMutableTensor(ws_->CreateBlob(newBlobName), CPU)
->ResizeLike(currentTensor);
auto type = Context::GetDeviceType();
auto* newTensor = BlobGetMutableTensor(ws_->GetBlob(newBlobName), type);
newTensor->CopyFrom(currentTensor);
}
}
auto* output =
Output(0, {static_cast<int64_t>(blob_names_vector.size())}, at::dtype<std::string>());
std::copy(
blob_names_vector.begin(),
blob_names_vector.end(),
output->template mutable_data<std::string>());
return true;
}
private:
std::string prefix_;
Workspace* ws_;
};
} // namespace caffe2
#endif // CAFFE2_OPERATORS_RECURRENT_BLOB_FETCHER_OP_H_
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