Metall v0.30
A persistent memory allocator for data-centric analytics
 
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metall_mpi_datastore.hpp
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1// Copyright 2020 Lawrence Livermore National Security, LLC and other Metall
2// Project Developers. See the top-level COPYRIGHT file for details.
3//
4// SPDX-License-Identifier: (Apache-2.0 OR MIT)
5
6#ifndef METALL_UTILITY_METALL_MPI_DATASTORE_HPP
7#define METALL_UTILITY_METALL_MPI_DATASTORE_HPP
8
9#include <string>
10
14
19inline std::string make_root_dir_path(const std::string &root_dir_prefix) {
20 return root_dir_prefix + "/";
21}
22
29inline std::string make_local_dir_path(const std::string &root_dir_prefix,
30 const int rank) {
31 return make_root_dir_path(root_dir_prefix) + "/subdir-" +
32 std::to_string(rank);
33}
34
35} // namespace metall::utility::mpi_datastore
36
37#endif // METALL_UTILITY_METALL_MPI_DATASTORE_HPP
Namespace for MPI datastore.
std::string make_root_dir_path(const std::string &root_dir_prefix)
Makes a path of a root directory. The MPI ranks that share the same storage space create their data s...
Definition metall_mpi_datastore.hpp:19
std::string make_local_dir_path(const std::string &root_dir_prefix, const int rank)
Makes the data store path of a MPI rank.
Definition metall_mpi_datastore.hpp:29