Brandon Potter
464 γραμμές
16 KiB
C++
464 γραμμές
16 KiB
C++
/******************************************************************************
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* Copyright (c) 2024 Advanced Micro Devices, Inc. All rights reserved.
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*
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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
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell 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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*
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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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*
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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
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*****************************************************************************/
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#ifndef LIBRARY_SRC_CONTEXT_HPP_
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#define LIBRARY_SRC_CONTEXT_HPP_
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#include <hip/hip_runtime.h>
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#include "backend_type.hpp"
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#include "fence_policy.hpp"
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#include "host/host.hpp"
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#include "ipc_policy.hpp"
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#include "stats.hpp"
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#include "sync/spin_ebo_block_mutex.hpp"
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#include "wf_coal_policy.hpp"
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namespace rocshmem {
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class Backend;
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/**
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* @file context.hpp
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* @brief Context class corresponds directly to an OpenSHMEM context.
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*
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* GPUs perform networking operations on a context that is created by the
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* application programmer or a "default context" managed by the runtime.
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*
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* Contexts can be allocated in shared memory, in which case they are private
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* to the creating workgroup, or they can be allocated in global memory, in
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* which case they are shareable across workgroups.
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*
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* This is an 'abstract' class, as much as there is such a thing on a GPU.
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* It uses 'type' to dispatch to a derived class for most of the interesting
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* behavior.
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*/
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class Context {
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public:
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__host__ Context(Backend* handle, bool shareable);
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__device__ Context(Backend* handle, bool shareable);
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/*
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* Dispatch functions to get runtime polymorphism without 'virtual' or
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* function pointers. Each one of these guys will use 'type' to
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* static_cast themselves and dispatch to the appropriate derived class.
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* It's basically doing part of what the 'virtual' keyword does, so when
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* we get that working in ROCm it will be super easy to adapt to it by
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* just removing the dispatch implementations.
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*
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* No comments for these guys since its basically the same as in the
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* roc_shmem.hpp public header.
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*/
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/**************************************************************************
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***************************** DEVICE METHODS *****************************
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*************************************************************************/
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template <typename T>
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__device__ void wait_until(T* ptr, roc_shmem_cmps cmp, T val);
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template <typename T>
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__device__ void wait_until_all(T* ptr, size_t nelems,
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const int *status,
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roc_shmem_cmps cmp, T val);
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template <typename T>
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__device__ size_t wait_until_any(T* ptr, size_t nelems,
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const int *status,
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roc_shmem_cmps cmp, T val);
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template <typename T>
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__device__ size_t wait_until_some(T* ptr, size_t nelems,
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size_t* indices,
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const int *status,
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roc_shmem_cmps cmp, T val);
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template <typename T>
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__device__ void wait_until_all_vector(T* ptr, size_t nelems,
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const int *status,
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roc_shmem_cmps cmp, T* vals);
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template <typename T>
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__device__ size_t wait_until_any_vector(T* ptr, size_t nelems,
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const int *status,
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roc_shmem_cmps cmp, T* vals);
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template <typename T>
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__device__ size_t wait_until_some_vector(T* ptr, size_t nelems,
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size_t* indices,
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const int *status,
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roc_shmem_cmps cmp, T* vals);
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template <typename T>
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__device__ int test(T* ptr, roc_shmem_cmps cmp, T val);
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__device__ void threadfence_system();
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__device__ void ctx_create();
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__device__ void ctx_destroy();
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__device__ void putmem(void* dest, const void* source, size_t nelems, int pe);
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__device__ void getmem(void* dest, const void* source, size_t nelems, int pe);
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__device__ void putmem_nbi(void* dest, const void* source, size_t nelems,
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int pe);
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__device__ void getmem_nbi(void* dest, const void* source, size_t size,
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int pe);
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__device__ void fence();
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__device__ void fence(int pe);
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__device__ void quiet();
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__device__ void* shmem_ptr(const void* dest, int pe);
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__device__ void barrier_all();
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__device__ void sync_all();
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__device__ void sync(roc_shmem_team_t team);
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template <typename T>
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__device__ T amo_fetch(void* dst, T value, T cond, int pe, uint8_t atomic_op);
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template <typename T>
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__device__ void amo_add(void* dst, T value, int pe);
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template <typename T>
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__device__ void amo_set(void* dst, T value, int pe);
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template <typename T>
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__device__ T amo_swap(void* dst, T value, int pe);
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template <typename T>
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__device__ T amo_fetch_and(void* dst, T value, int pe);
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template <typename T>
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__device__ void amo_and(void* dst, T value, int pe);
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template <typename T>
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__device__ T amo_fetch_or(void* dst, T value, int pe);
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template <typename T>
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__device__ void amo_or(void* dst, T value, int pe);
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template <typename T>
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__device__ T amo_fetch_xor(void* dst, T value, int pe);
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template <typename T>
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__device__ void amo_xor(void* dst, T value, int pe);
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template <typename T>
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__device__ void amo_cas(void* dst, T value, T cond, int pe);
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template <typename T>
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__device__ T amo_fetch_add(void* dst, T value, int pe);
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template <typename T>
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__device__ T amo_fetch_cas(void* dst, T value, T cond, int pe);
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template <typename T>
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__device__ void p(T* dest, T value, int pe);
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template <typename T>
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__device__ T g(T* source, int pe);
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template <typename T, ROC_SHMEM_OP Op>
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__device__ void to_all(T* dest, const T* source, int nreduce, int PE_start,
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int logPE_stride, int PE_size, T* pWrk,
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long* pSync); // NOLINT(runtime/int)
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template <typename T, ROC_SHMEM_OP Op>
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__device__ void to_all(roc_shmem_team_t team, T* dest, const T* source,
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int nreduce);
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template <typename T>
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__device__ void put(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__device__ void put_nbi(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__device__ void get(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__device__ void get_nbi(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__device__ void alltoall(roc_shmem_team_t team, T* dest, const T* source,
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int nelems);
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template <typename T>
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__device__ void fcollect(roc_shmem_team_t team, T* dest, const T* source,
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int nelems);
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template <typename T>
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__device__ void broadcast(roc_shmem_team_t team, T* dest, const T* source,
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int nelems, int pe_root);
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template <typename T>
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__device__ void broadcast(T* dest, const T* source, int nelems, int pe_root,
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int pe_start, int log_pe_stride, int pe_size,
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long* p_sync); // NOLINT(runtime/int)
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__device__ void putmem_wg(void* dest, const void* source, size_t nelems,
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int pe);
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__device__ void getmem_wg(void* dest, const void* source, size_t nelems,
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int pe);
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__device__ void putmem_nbi_wg(void* dest, const void* source, size_t nelems,
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int pe);
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__device__ void getmem_nbi_wg(void* dest, const void* source, size_t size,
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int pe);
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__device__ void putmem_wave(void* dest, const void* source, size_t nelems,
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int pe);
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__device__ void getmem_wave(void* dest, const void* source, size_t nelems,
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int pe);
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__device__ void putmem_nbi_wave(void* dest, const void* source, size_t nelems,
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int pe);
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__device__ void getmem_nbi_wave(void* dest, const void* source, size_t size,
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int pe);
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template <typename T>
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__device__ void put_wg(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__device__ void put_nbi_wg(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__device__ void get_wg(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__device__ void get_nbi_wg(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__device__ void put_wave(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__device__ void put_nbi_wave(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__device__ void get_wave(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__device__ void get_nbi_wave(T* dest, const T* source, size_t nelems, int pe);
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/**************************************************************************
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****************************** HOST METHODS ******************************
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*************************************************************************/
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template <typename T>
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__host__ void p(T* dest, T value, int pe);
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template <typename T>
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__host__ T g(const T* source, int pe);
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template <typename T>
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__host__ void put(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__host__ void get(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__host__ void put_nbi(T* dest, const T* source, size_t nelems, int pe);
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template <typename T>
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__host__ void get_nbi(T* dest, const T* source, size_t nelems, int pe);
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__host__ void putmem(void* dest, const void* source, size_t nelems, int pe);
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__host__ void getmem(void* dest, const void* source, size_t nelems, int pe);
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__host__ void putmem_nbi(void* dest, const void* source, size_t nelems,
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int pe);
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__host__ void getmem_nbi(void* dest, const void* source, size_t size, int pe);
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template <typename T>
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__host__ void amo_add(void* dst, T value, int pe);
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template <typename T>
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__host__ void amo_set(void* dst, T value, int pe);
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template <typename T>
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__host__ T amo_swap(void* dst, T value, int pe);
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template <typename T>
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__host__ T amo_fetch_and(void* dst, T value, int pe);
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template <typename T>
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__host__ void amo_and(void* dst, T value, int pe);
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template <typename T>
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__host__ T amo_fetch_or(void* dst, T value, int pe);
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template <typename T>
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__host__ void amo_or(void* dst, T value, int pe);
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template <typename T>
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__host__ T amo_fetch_xor(void* dst, T value, int pe);
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template <typename T>
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__host__ void amo_xor(void* dst, T value, int pe);
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template <typename T>
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__host__ void amo_cas(void* dst, T value, T cond, int pe);
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template <typename T>
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__host__ T amo_fetch_add(void* dst, T value, int pe);
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template <typename T>
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__host__ T amo_fetch_cas(void* dst, T value, T cond, int pe);
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__host__ void fence();
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__host__ void quiet();
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__host__ void barrier_all();
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__host__ void sync_all();
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template <typename T>
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__host__ void broadcast(T* dest, const T* source, int nelems, int pe_root,
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int pe_start, int log_pe_stride, int pe_size,
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long* p_sync); // NOLINT(runtime/int)
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template <typename T>
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__host__ void broadcast(roc_shmem_team_t team, T* dest, const T* source,
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int nelems, int pe_root);
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template <typename T, ROC_SHMEM_OP Op>
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__host__ void to_all(T* dest, const T* source, int nreduce, int PE_start,
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int logPE_stride, int PE_size, T* pWrk,
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long* pSync); // NOLINT(runtime/int)
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template <typename T, ROC_SHMEM_OP Op>
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__host__ void to_all(roc_shmem_team_t team, T* dest, const T* source,
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int nreduce);
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template <typename T>
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__host__ void wait_until(T* ptr, roc_shmem_cmps cmp, T val);
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template <typename T>
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__host__ void wait_until_all(T* ptr, size_t nelems,
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const int *status,
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roc_shmem_cmps cmp, T val);
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template <typename T>
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__host__ size_t wait_until_any(T* ptr, size_t nelems,
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const int *status,
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roc_shmem_cmps cmp, T val);
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template <typename T>
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__host__ size_t wait_until_some(T* ptr, size_t nelems,
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size_t* indices,
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const int *status,
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roc_shmem_cmps cmp, T val);
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template <typename T>
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__host__ void wait_until_all_vector(T* ptr, size_t nelems,
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const int *status,
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roc_shmem_cmps cmp, T* vals);
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template <typename T>
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__host__ size_t wait_until_any_vector(T* ptr, size_t nelems,
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const int *status,
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roc_shmem_cmps cmp, T* vals);
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template <typename T>
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__host__ size_t wait_until_some_vector(T* ptr, size_t nelems,
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size_t* indices,
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const int *status,
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roc_shmem_cmps cmp, T* vals);
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template <typename T>
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__host__ int test(T* ptr, roc_shmem_cmps cmp, T val);
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public:
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/**
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* @brief Set the fence policy using a runtime option
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*
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* @param[in] options interpreted as a bitfield using bitwise operations
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*/
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__device__ void setFence(long options) { fence_ = Fence(options); }
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/**************************************************************************
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***************************** PUBLIC MEMBERS *****************************
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*************************************************************************/
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/**
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* @brief Duplicated local copy of backend's num_pes
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*/
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int num_pes{0};
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/**
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* @brief Duplicated local copy of backend's my_pe
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*/
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int my_pe{-1};
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/**
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* @brief Stats common to all types of device contexts.
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*/
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ROCStats ctxStats{};
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/**
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* @brief Stats common to all types of host contexts.
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*/
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ROCHostStats ctxHostStats{};
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protected:
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/**************************************************************************
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***************************** POLICY MEMBERS *****************************
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*************************************************************************/
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/**
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* @brief Coalesce policy for 'multi' configuration builds
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*/
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WavefrontCoalescer wf_coal_{};
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/**
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* @brief Controls fence behavior in device code
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*/
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Fence fence_{};
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public:
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/**
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* @brief Inter-Process Communication (IPC) interface for context class
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*
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* This member is an interface to allow intra-node interprocess
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* communication through shared memory.
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*/
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IpcImpl ipcImpl_{};
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};
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} // namespace rocshmem
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#endif // LIBRARY_SRC_CONTEXT_HPP_
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