69 lines
2 KiB
C++
69 lines
2 KiB
C++
#pragma once
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#include <c10/core/Allocator.h>
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#include <c10/util/Exception.h>
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#include <c10/util/Registry.h>
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#include <ATen/detail/AcceleratorHooksInterface.h>
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#include <memory>
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// NB: Class must live in `at` due to limitations of Registry.h.
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namespace at {
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// The HIPHooksInterface is an omnibus interface for any HIP functionality
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// which we may want to call into from CPU code (and thus must be dynamically
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// dispatched, to allow for separate compilation of HIP code). See
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// CUDAHooksInterface for more detailed motivation.
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struct TORCH_API HIPHooksInterface : AcceleratorHooksInterface {
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// This should never actually be implemented, but it is used to
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// squelch -Werror=non-virtual-dtor
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~HIPHooksInterface() override = default;
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void init() const override {
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TORCH_CHECK(false, "Cannot initialize HIP without ATen_hip library.");
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}
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const Generator& getDefaultGenerator(
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[[maybe_unused]] DeviceIndex device_index = -1) const override {
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TORCH_CHECK(false, "Cannot initialize HIP without ATen_hip library.");
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}
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virtual bool hasHIP() const {
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return false;
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}
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virtual c10::DeviceIndex current_device() const {
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return -1;
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}
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bool isPinnedPtr(const void* data) const override {
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return false;
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}
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Allocator* getPinnedMemoryAllocator() const override {
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TORCH_CHECK(false, "Pinned memory requires HIP.");
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}
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virtual int getNumGPUs() const {
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return 0;
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}
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bool hasPrimaryContext(DeviceIndex device_index) const override {
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TORCH_CHECK(false, "Cannot check primary context without ATen_hip library.");
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}
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};
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// NB: dummy argument to suppress "ISO C++11 requires at least one argument
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// for the "..." in a variadic macro"
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struct TORCH_API HIPHooksArgs {};
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TORCH_DECLARE_REGISTRY(HIPHooksRegistry, HIPHooksInterface, HIPHooksArgs);
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#define REGISTER_HIP_HOOKS(clsname) \
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C10_REGISTER_CLASS(HIPHooksRegistry, clsname, clsname)
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namespace detail {
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TORCH_API const HIPHooksInterface& getHIPHooks();
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} // namespace detail
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} // namespace at
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