提交 6c6a3922 编写于 作者: L luotao1

Merge branch 'core_opt_choose_kernel' of https://github.com/Xreki/Paddle into...

Merge branch 'core_opt_choose_kernel' of https://github.com/Xreki/Paddle into core_opt_choose_kernel
......@@ -880,50 +880,23 @@ void OperatorWithKernel::RunImpl(const Scope& scope,
platform::DeviceContextPool& pool = platform::DeviceContextPool::Instance();
auto* dev_ctx = pool.Get(place);
// check if op[type] has kernel registered.
auto& all_op_kernels = AllOpKernels();
auto kernels_iter = all_op_kernels.find(type_);
if (kernels_iter == all_op_kernels.end()) {
PADDLE_THROW(
"There are no kernels which are registered in the %s operator.", type_);
}
OpKernelMap& kernels = kernels_iter->second;
auto expected_kernel_key = this->GetExpectedKernelType(
ExecutionContext(*this, scope, *dev_ctx, ctx, nullptr));
VLOG(3) << "expected_kernel_key:" << expected_kernel_key;
auto kernel_iter = kernels.find(expected_kernel_key);
#ifdef PADDLE_WITH_MKLDNN
// workaround for missing MKLDNN kernel when FLAGS_use_mkldnn env var is set
if (kernel_iter == kernels.end() &&
expected_kernel_key.library_type_ == LibraryType::kMKLDNN) {
VLOG(3) << "missing MKLDNN kernel: fallbacking to PLAIN one";
expected_kernel_key.library_type_ = LibraryType::kPlain;
expected_kernel_key.data_layout_ = DataLayout::kAnyLayout;
kernel_iter = kernels.find(expected_kernel_key);
}
#endif
if (kernel_iter == kernels.end()) {
PADDLE_THROW("op %s does not have kernel for %s", type_,
KernelTypeToString(expected_kernel_key));
if (!kernel_type_) {
ChooseKernel(ctx, scope, place);
}
std::vector<KernelConfig>* kernel_configs =
GetKernelConfig(expected_kernel_key);
std::vector<KernelConfig>* kernel_configs = GetKernelConfig(*kernel_type_);
// do data transformScope &transfer_scope;
std::vector<std::string> transfered_inplace_vars;
auto* transfer_scope =
PrepareData(scope, expected_kernel_key, &transfered_inplace_vars, &ctx);
PrepareData(scope, *kernel_type_, &transfered_inplace_vars, &ctx);
// exec scope is the scope that kernel actually executed on.
const Scope& exec_scope =
(transfer_scope == nullptr ? scope : *transfer_scope);
if (!(expected_kernel_key.place_ == dev_ctx->GetPlace())) {
dev_ctx = pool.Get(expected_kernel_key.place_);
if (!(kernel_type_->place_ == dev_ctx->GetPlace())) {
dev_ctx = pool.Get(kernel_type_->place_);
}
if (!HasAttr(kAllKernelsMustComputeRuntimeShape)) {
......@@ -932,7 +905,7 @@ void OperatorWithKernel::RunImpl(const Scope& scope,
}
// TODO(panyx0718): ExecutionContext should only depend on RuntimeContext
// not Scope. Imperative mode only pass inputs and get outputs.
kernel_iter->second(
(*kernel_func_)(
ExecutionContext(*this, exec_scope, *dev_ctx, ctx, kernel_configs));
if (!transfered_inplace_vars.empty()) {
......@@ -959,6 +932,46 @@ void OperatorWithKernel::RunImpl(const Scope& scope,
}
}
void OperatorWithKernel::ChooseKernel(const RuntimeContext& ctx,
const Scope& scope,
const platform::Place& place) const {
platform::DeviceContextPool& pool = platform::DeviceContextPool::Instance();
auto* dev_ctx = pool.Get(place);
// check if op[type] has kernel registered.
auto& all_op_kernels = AllOpKernels();
auto kernels_iter = all_op_kernels.find(type_);
if (kernels_iter == all_op_kernels.end()) {
PADDLE_THROW(
"There are no kernels which are registered in the %s operator.", type_);
}
OpKernelMap& kernels = kernels_iter->second;
auto expected_kernel_key = this->GetExpectedKernelType(
ExecutionContext(*this, scope, *dev_ctx, ctx, nullptr));
VLOG(3) << "expected_kernel_key:" << expected_kernel_key;
auto kernel_iter = kernels.find(expected_kernel_key);
#ifdef PADDLE_WITH_MKLDNN
// workaround for missing MKLDNN kernel when FLAGS_use_mkldnn env var is set
if (kernel_iter == kernels.end() &&
expected_kernel_key.library_type_ == LibraryType::kMKLDNN) {
VLOG(3) << "missing MKLDNN kernel: fallbacking to PLAIN one";
expected_kernel_key.library_type_ = LibraryType::kPlain;
expected_kernel_key.data_layout_ = DataLayout::kAnyLayout;
kernel_iter = kernels.find(expected_kernel_key);
}
#endif
if (kernel_iter == kernels.end()) {
PADDLE_THROW("op %s does not have kernel for %s", type_,
KernelTypeToString(expected_kernel_key));
}
kernel_type_.reset(new OpKernelType(expected_kernel_key));
kernel_func_.reset(new OpKernelFunc(kernel_iter->second));
}
void OperatorWithKernel::TransferInplaceVarsBack(
const Scope& scope, const std::vector<std::string>& inplace_vars,
const Scope& transfer_scope) const {
......
......@@ -472,8 +472,13 @@ class OperatorWithKernel : public OperatorBase {
const std::vector<std::string>& inplace_vars,
const Scope& exec_scope) const;
void ChooseKernel(const RuntimeContext& ctx, const Scope& scope,
const platform::Place& place) const;
protected:
mutable OpKernelConfigsMap kernel_configs_map_;
mutable std::unique_ptr<OpKernelType> kernel_type_;
mutable std::unique_ptr<OpKernelFunc> kernel_func_;
};
extern bool OpSupportGPU(const std::string& op_type);
......
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