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deal.II version GIT relicensing-2684-gc61376a70f 2025-02-22 15:30:00+00:00
\(\newcommand{\dealvcentcolon}{\mathrel{\mathop{:}}}\) \(\newcommand{\dealcoloneq}{\dealvcentcolon\mathrel{\mkern-1.2mu}=}\) \(\newcommand{\jump}[1]{\left[\!\left[ #1 \right]\!\right]}\) \(\newcommand{\average}[1]{\left\{\!\left\{ #1 \right\}\!\right\}}\)
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include
deal.II
base
mpi_stub.h
Go to the documentation of this file.
1
// ------------------------------------------------------------------------
2
//
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// SPDX-License-Identifier: LGPL-2.1-or-later
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// Copyright (C) 2022 - 2023 by the deal.II authors
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//
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// This file is part of the deal.II library.
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//
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// Part of the source code is dual licensed under Apache-2.0 WITH
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// LLVM-exception OR LGPL-2.1-or-later. Detailed license information
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// governing the source code and code contributions can be found in
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// LICENSE.md and CONTRIBUTING.md at the top level directory of deal.II.
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//
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// ------------------------------------------------------------------------
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#ifndef dealii_mpi_stub_h
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#define dealii_mpi_stub_h
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#include <
deal.II/base/config.h
>
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// If we have mpi.h then include it. Otherwise, define some common MPI data
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// types and global constants for the no-MPI case. This way we can still use,
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// e.g., MPI_Comm in the API.
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#if defined(DEAL_II_WITH_MPI)
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# include <
mpi.h
>
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#else
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// Without MPI, we would still like to use some constructs with MPI
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// data types. Therefore, create some dummies. Since we only ever use
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// them inside our own constructs, the right thing to do is to put
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// them into namespace dealii:
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DEAL_II_NAMESPACE_OPEN
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using
MPI_Comm
=
int
;
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using
MPI_Request =
int
;
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using
MPI_Datatype =
int
;
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using
MPI_Op =
int
;
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constexpr
MPI_Comm
MPI_COMM_WORLD = 0;
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constexpr
MPI_Comm
MPI_COMM_SELF = 0;
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constexpr
MPI_Comm
MPI_COMM_NULL = 0;
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constexpr
MPI_Request MPI_REQUEST_NULL = 0;
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constexpr
MPI_Op MPI_MIN = 0;
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constexpr
MPI_Op MPI_MAX = 0;
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constexpr
MPI_Op MPI_SUM = 0;
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constexpr
MPI_Op MPI_LOR = 0;
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DEAL_II_NAMESPACE_CLOSE
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#endif
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#endif
MPI_Comm
int
config.h
DEAL_II_NAMESPACE_OPEN
#define DEAL_II_NAMESPACE_OPEN
Definition
config.h:522
DEAL_II_NAMESPACE_CLOSE
#define DEAL_II_NAMESPACE_CLOSE
Definition
config.h:523
mpi.h
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