Brandon Potter
97 خطوط
2.5 KiB
C++
97 خطوط
2.5 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_MPI_INIT_SINGLETON_HPP_
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#define LIBRARY_SRC_MPI_INIT_SINGLETON_HPP_
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#include <mpi.h>
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#include <memory>
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/**
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* @file mpi_init_singleton.hpp
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*
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* @brief Contains MPI library initialization code
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*/
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namespace rocshmem {
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class MPIInitSingleton {
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private:
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/**
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* @brief Primary constructor
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*/
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MPIInitSingleton();
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public:
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/**
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* @brief Destructor
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*/
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~MPIInitSingleton();
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/**
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* @brief Invoke singleton construction or return handle
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*
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* @return Initialized handle to singleton
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*/
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static MPIInitSingleton* GetInstance();
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/**
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* @brief Accessor for my COMM_WORLD rank identifier
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*
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* @return My COMM_WORLD rank identifier
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*/
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int get_rank();
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/**
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* @brief Accessor for number or processes in COMM_WORLD
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*
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* @return Number of processes in COMM_WORLD
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*/
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int get_nprocs();
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private:
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/**
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* @brief My MPI rank identifier
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*/
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int my_rank_{-1};
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/**
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* @brief Number of MPI processes
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*/
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int nprocs_{-1};
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/**
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* @brief Was MPI initialized before ROCSHMEM_init call
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*/
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int pre_init_done{0};
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/**
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* @brief Refers to global variable
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*/
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static MPIInitSingleton* instance;
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};
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} // namespace rocshmem
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#endif // LIBRARY_SRC_MPI_INIT_SINGLETON_HPP_
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