compilation_config.h

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
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#ifndef TVM_TARGET_COMPILATION_CONFIG_H_
#define TVM_TARGET_COMPILATION_CONFIG_H_

#include <tvm/target/virtual_device.h>

#include <string>

namespace tvm {

class CompilationConfigNode : public Object {
 public:
  Target host_target;

  Array<Target> primitive_targets;

  VirtualDevice default_primitive_virtual_device = VirtualDevice::FullyUnconstrained();

  VirtualDevice host_virtual_device = VirtualDevice::FullyUnconstrained();

  Target optional_homogeneous_target;

  void VisitAttrs(AttrVisitor* v);

  Target FindPrimitiveTargetForDeviceOrFail(DLDeviceType device_type) const;

  Optional<Target> FindPrimitiveTargetForKind(const std::string& kind_name) const;

  VirtualDevice CanonicalVirtualDevice(const VirtualDevice& virtual_device) const;

  static constexpr const char* _type_key = "CompilationConfig";
  TVM_DECLARE_FINAL_OBJECT_INFO(CompilationConfigNode, Object)

 private:
  void Init(const transform::PassContext& pass_ctx, const Array<Target>& raw_targets);

  static Target MakeDefaultCPUTarget();

  mutable VirtualDeviceCache virtual_device_cache_;

  friend class CompilationConfig;
};

class CompilationConfig : public ObjectRef {
 public:
  TVM_DLL CompilationConfig(const transform::PassContext& pass_ctx,
                            const Array<Target>& raw_targets);

  TVM_DEFINE_OBJECT_REF_METHODS(CompilationConfig, ObjectRef, CompilationConfigNode);
};

}  // namespace tvm

#endif  // TVM_TARGET_COMPILATION_CONFIG_H_