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// Copyright © 2022 Apple Inc.
// This file is modify from:
// https://github.com/pytorch/pytorch/blob/a85d1f0bcdd02cf18d3b0517337458cb51a18cdb/aten/src/ATen/mps/MPSDevice.h
#pragma once
#include <ATen/ATen.h>
#include <c10/macros/Macros.h>
#include <c10/util/Exception.h>
#ifdef __OBJC__
#include <Foundation/Foundation.h>
#include <Metal/Metal.h>
#include <MetalPerformanceShaders/MetalPerformanceShaders.h>
typedef id<MTLDevice> MTLDevice_t;
#else
typedef void* MTLDevice;
typedef void* MTLDevice_t;
#endif
using namespace std;
namespace at {
namespace mps {
//-----------------------------------------------------------------
// MPSDevice
//
// MPSDevice is a singleton class that returns the default device
//-----------------------------------------------------------------
class TORCH_API MPSDevice {
public:
/**
* MPSDevice should not be cloneable.
*/
MPSDevice(MPSDevice& other) = delete;
/**
* MPSDevice should not be assignable.
*/
void operator=(const MPSDevice&) = delete;
/**
* Gets single instance of the Device.
*/
static MPSDevice* getInstance();
/**
* Returns the single device.
*/
MTLDevice_t device() { return _mtl_device; }
~MPSDevice();
private:
static MPSDevice* _device;
MTLDevice_t _mtl_device;
MPSDevice();
};
TORCH_API bool is_available();
TORCH_API at::Allocator* GetMPSAllocator(bool useSharedAllocator = false);
} // namespace mps
} // namespace at
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