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80 lines
2.4 KiB
80 lines
2.4 KiB
// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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#pragma once
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#include <memory>
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#include <set>
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#include <string>
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#include <tuple>
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#include <unordered_set>
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#include "paddle/fluid/imperative/tracer.h"
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#include "paddle/fluid/imperative/type_defs.h"
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namespace paddle {
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namespace imperative {
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// Singleton implementation with C++ 11
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class AmpOperators {
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public:
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~AmpOperators();
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AmpOperators(const AmpOperators& o) = delete;
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const AmpOperators& operator=(const AmpOperators& o) = delete;
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static AmpOperators& Instance();
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std::shared_ptr<std::unordered_set<std::string>> GetAllowOps();
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std::shared_ptr<std::unordered_set<std::string>> GetBlockOps();
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private:
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AmpOperators(); // forbid calling default constructor
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// The set of ops that support fp16 calculation and are considered numerically
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// safe and performance critical. These ops are always converted to fp16.
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std::shared_ptr<std::unordered_set<std::string>> allow_ops_;
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// The set of ops that support fp16 calculation and are considered numerically
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// dangerous and whose effects may also be observed in downstream ops.
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std::shared_ptr<std::unordered_set<std::string>> block_ops_;
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};
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// NOTE(zhiqiu): AutoCastGuard is used for RAII.
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class AutoCastGuard {
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public:
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AutoCastGuard(std::shared_ptr<Tracer> tracer, bool guard_mode)
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: tracer_(tracer) {
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pre_mode_ = tracer_->IsAutoCastEnabled();
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if (pre_mode_ != guard_mode) {
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tracer_->SetEnableAutoCast(guard_mode);
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}
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}
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~AutoCastGuard() { tracer_->SetEnableAutoCast(pre_mode_); }
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// forbid copy and operator=
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AutoCastGuard(const AutoCastGuard& guard) = delete;
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AutoCastGuard& operator=(const AutoCastGuard& guard) = delete;
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private:
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std::shared_ptr<Tracer> tracer_;
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bool pre_mode_;
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};
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NameVarBaseMap AutoCastInputs(const std::string& op_type,
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const NameVarBaseMap& ins);
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} // namespace imperative
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} // namespace paddle
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