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/**
* Copyright (c) 2016-present, Facebook, Inc.
*
* Licensed 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 specific language governing permissions and
* limitations under the License.
*/
#ifndef CAFFE2_CORE_COMMON_MIOPEN_H_
#define CAFFE2_CORE_COMMON_MIOPEN_H_
#include <array>
#include <mutex>
#include "miopen/miopen.h"
#include "caffe2/core/common.h"
#include "caffe2/core/context.h"
#include "caffe2/core/logging.h"
#include "caffe2/core/types.h"
#include "caffe2/proto/caffe2_pb.h"
#define MIOPEN_VERSION 1399
namespace caffe2 {
namespace internal {
/**
* A helper function to obtain miopen error strings.
*/
inline const char* miopenGetErrorString(miopenStatus_t status)
{
switch(status)
{
case miopenStatusSuccess: return "MIOPEN_STATUS_SUCCESS";
case miopenStatusNotInitialized: return "MIOPEN_STATUS_NOT_INITIALIZED";
case miopenStatusAllocFailed: return "MIOPEN_STATUS_ALLOC_FAILED";
case miopenStatusBadParm: return "MIOPEN_STATUS_BAD_PARAM";
case miopenStatusInternalError: return "MIOPEN_STATUS_INTERNAL_ERROR";
case miopenStatusInvalidValue: return "MIOPEN_STATUS_INVALID_VALUE";
case miopenStatusNotImplemented: return "MIOPEN_STATUS_NOT_SUPPORTED";
case miopenStatusUnknownError: return "MIOPEN_STATUS_UNKNOWN_ERROR";
default: return "MIOPEN_STATUS_UNKNOWN_ERROR";
}
}
} // namespace internal
// A macro that wraps around a miopen statement so we can check if the miopen
// execution finishes or not.
#define MIOPEN_ENFORCE(condition) \
do \
{ \
miopenStatus_t status = condition; \
CAFFE_ENFORCE_EQ(status, \
miopenStatusSuccess, \
", Error at: ", \
__FILE__, \
":", \
__LINE__, \
": ", \
::caffe2::internal::miopenGetErrorString(status)); \
} while(0)
#define MIOPEN_CHECK(condition) \
do \
{ \
miopenStatus_t status = condition; \
CHECK(status == miopenStatusSuccess) << ::caffe2::internal::miopenGetErrorString(status); \
} while(0)
// report the version of miopen Caffe2 was compiled with
inline size_t miopenCompiledVersion() { return MIOPEN_VERSION; }
// report the runtime version of miopen
inline size_t miopenRuntimeVersion() { return MIOPEN_VERSION; }
// Check compatibility of compiled and runtime miopen versions
inline void CheckMIOPENVersions() {}
/**
* miopenTypeWrapper is a wrapper class that allows us to refer to the miopen type
* in a template function. The class is specialized explicitly for different
* data types below.
*/
template <typename T>
class miopenTypeWrapper;
template <>
class miopenTypeWrapper<float>
{
public:
static const miopenDataType_t type = miopenFloat;
typedef const float ScalingParamType;
typedef float BNParamType;
static ScalingParamType* kOne()
{
static ScalingParamType v = 1.0;
return &v;
}
static const ScalingParamType* kZero()
{
static ScalingParamType v = 0.0;
return &v;
}
};
template <>
class miopenTypeWrapper<at::Half>
{
public:
static const miopenDataType_t type = miopenHalf;
typedef const float ScalingParamType;
typedef float BNParamType;
static ScalingParamType* kOne()
{
static ScalingParamType v = 1.0;
return &v;
}
static ScalingParamType* kZero()
{
static ScalingParamType v = 0.0;
return &v;
}
};
/**
* miopenTensorDescWrapper is the placeholder that wraps around a
* miopenTensorDescriptor_t, allowing us to do descriptor change as-needed during
* runtime.
*/
class miopenTensorDescWrapper
{
public:
miopenTensorDescWrapper() { MIOPEN_ENFORCE(miopenCreateTensorDescriptor(&desc_)); }
~miopenTensorDescWrapper() noexcept { MIOPEN_CHECK(miopenDestroyTensorDescriptor(desc_)); }
inline miopenTensorDescriptor_t
Descriptor(const miopenDataType_t type, const vector<int>& dims, bool* changed)
{
if(type_ == type && dims_ == dims)
{
// if not changed, simply return the current descriptor.
if(changed)
*changed = false;
return desc_;
}
CAFFE_ENFORCE_EQ(
dims.size(), 4, "MIOPEN currently only support 4-dimensional tensor descriptor");
type_ = type;
dims_ = dims;
MIOPEN_ENFORCE(
miopenSet4dTensorDescriptor(desc_, type, dims_[0], dims_[1], dims_[2], dims_[3]));
if(changed)
*changed = true;
return desc_;
}
template <typename T>
inline miopenTensorDescriptor_t Descriptor(const StorageOrder& order, const vector<int>& dims)
{
return Descriptor(miopenTypeWrapper<T>::type, dims, nullptr);
}
private:
miopenTensorDescriptor_t desc_;
miopenDataType_t type_;
vector<int> dims_;
C10_DISABLE_COPY_AND_ASSIGN(miopenTensorDescWrapper);
};
} // namespace caffe2
#endif // CAFFE2_CORE_COMMON_MIOPEN_H_
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