Laurent Morichetti
120 строки
4.1 KiB
C++
120 строки
4.1 KiB
C++
/* Copyright (c) 2015-present Advanced Micro Devices, Inc.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE. */
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#include <hip/hip_runtime.h>
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#include "hip_internal.hpp"
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hipError_t hipDeviceCanAccessPeer(int* canAccessPeer, hipCtx_t thisCtx, hipCtx_t peerCtx) {
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HIP_INIT_API(NONE, canAccessPeer, thisCtx, peerCtx);
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assert(0 && "Unimplemented");
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HIP_RETURN(hipErrorNotSupported);
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}
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hipError_t hipMemcpyPeer(void* dst, hipCtx_t dstCtx, const void* src, hipCtx_t srcCtx,
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size_t sizeBytes) {
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HIP_INIT_API(NONE, dst, dstCtx, src, srcCtx, sizeBytes);
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assert(0 && "Unimplemented");
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HIP_RETURN(hipErrorNotSupported);
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}
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hipError_t hipMemcpyPeerAsync(void* dst, hipCtx_t dstDevice, const void* src, hipCtx_t srcDevice,
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size_t sizeBytes, hipStream_t stream) {
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HIP_INIT_API(NONE, dst, dstDevice, src, srcDevice, sizeBytes, stream);
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assert(0 && "Unimplemented");
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HIP_RETURN(hipErrorNotSupported);
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}
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hipError_t hipDeviceCanAccessPeer(int* canAccessPeer, int deviceId, int peerDeviceId) {
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HIP_INIT_API(hipDeviceCanAccessPeer, canAccessPeer, deviceId, peerDeviceId);
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amd::Device* device = nullptr;
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amd::Device* peer_device = nullptr;
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if (canAccessPeer == nullptr) {
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HIP_RETURN(hipErrorInvalidValue);
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}
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/* Peer cannot be self */
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if (deviceId == peerDeviceId) {
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*canAccessPeer = 0;
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return HIP_RETURN(hipSuccess);
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}
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/* Cannot exceed the max number of devices */
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if (static_cast<size_t>(deviceId) >= g_devices.size()
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|| static_cast<size_t>(peerDeviceId) >= g_devices.size()) {
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return HIP_RETURN(hipErrorInvalidValue);
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}
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device = g_devices[deviceId]->devices()[0];
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peer_device = g_devices[peerDeviceId]->devices()[0];
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*canAccessPeer = static_cast<int>(std::find(device->p2pDevices_.begin(),
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device->p2pDevices_.end(), as_cl(peer_device))
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!= device->p2pDevices_.end());
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return HIP_RETURN(hipSuccess);
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}
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hipError_t hipDeviceDisablePeerAccess(int peerDeviceId) {
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HIP_INIT_API(hipDeviceDisablePeerAccess, peerDeviceId);
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HIP_RETURN(hipSuccess);
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}
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hipError_t hipDeviceEnablePeerAccess(int peerDeviceId, unsigned int flags) {
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HIP_INIT_API(hipDeviceEnablePeerAccess, peerDeviceId, flags);
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HIP_RETURN(hipSuccess);
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}
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hipError_t hipMemcpyPeer(void* dst, int dstDevice, const void* src, int srcDevice,
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size_t sizeBytes) {
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HIP_INIT_API(hipMemcpyPeer, dst, dstDevice, src, srcDevice, sizeBytes);
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HIP_RETURN(hipMemcpy(dst, src, sizeBytes, hipMemcpyDeviceToDevice));
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}
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hipError_t hipMemcpyPeerAsync(void* dst, int dstDevice, const void* src, int srcDevice,
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size_t sizeBytes, hipStream_t stream) {
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HIP_INIT_API(hipMemcpyPeerAsync, dst, dstDevice, src, srcDevice, sizeBytes, stream);
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HIP_RETURN(hipMemcpyAsync(dst, src, sizeBytes, hipMemcpyDeviceToDevice, stream));
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}
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hipError_t hipCtxEnablePeerAccess(hipCtx_t peerCtx, unsigned int flags) {
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HIP_INIT_API(hipCtxEnablePeerAccess, peerCtx, flags);
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HIP_RETURN(hipSuccess);
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}
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hipError_t hipCtxDisablePeerAccess(hipCtx_t peerCtx) {
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HIP_INIT_API(hipCtxDisablePeerAccess, peerCtx);
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HIP_RETURN(hipSuccess);
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}
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