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79 lines
2.5 KiB
Plaintext
79 lines
2.5 KiB
Plaintext
// Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "cuda_multiprocess.h"
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#include "paddle/extension.h"
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#ifndef PD_BUILD_STATIC_OP
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#define PD_BUILD_STATIC_OP(name) PD_BUILD_OP(static_op_##name)
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#endif
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#ifdef PADDLE_WITH_HIP
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#include <hip/hip_runtime.h>
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#include <hipcub/hipcub.hpp>
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namespace cub = hipcub;
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#define GPU(str) hip##str
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#else
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#define GPU(str) cuda##str
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#endif
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template <typename T>
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__global__ void set_data(T *input, int n) {
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if (threadIdx.x == 0) {
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for (int i = 0; i < n; ++i) {
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*(input + i) = static_cast<T>(i);
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printf("set[%d]: %f\n", i, *(input + i));
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}
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}
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}
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template <typename T>
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__global__ void print_data(T *input, int n) {
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if (threadIdx.x == 0) {
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for (int i = 0; i < n; ++i) {
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printf("input[%d]: %f\n", i, input[i]);
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}
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}
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}
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void ReadDataIpc(const paddle::Tensor &tmp_input,
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int64_t data_ptr,
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const std::string &shm_name) {
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volatile shmStruct *shm = NULL;
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sharedMemoryInfo info;
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if (sharedMemoryOpen(shm_name.c_str(), sizeof(shmStruct), &info) != 0) {
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printf("Failed to create shared memory slab\n");
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printf("Func ReadDataIpc. Shm_name: %s\n", shm_name.c_str());
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exit(EXIT_FAILURE);
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}
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shm = (volatile shmStruct *)info.addr;
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void *ptr = nullptr;
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checkCudaErrors(
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GPU(IpcOpenMemHandle)(&ptr,
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*(GPU(IpcMemHandle_t) *)&shm->memHandle,
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GPU(IpcMemLazyEnablePeerAccess)));
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printf("ptr: %p\n", ptr);
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print_data<float><<<1, 1>>>(reinterpret_cast<float *>(ptr), 10);
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GPU(DeviceSynchronize)();
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checkCudaErrors(GPU(IpcCloseMemHandle)(ptr));
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sharedMemoryClose(&info);
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}
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PD_BUILD_STATIC_OP(read_data_ipc)
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.Inputs({"tmp_input"})
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.Attrs({"data_ptr: int64_t", "shm_name: std::string"})
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.Outputs({"tmp_input_out"})
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.SetInplaceMap({{"tmp_input", "tmp_input_out"}})
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.SetKernelFn(PD_KERNEL(ReadDataIpc));
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