multitask_mpi
multitask_mpi,
a C++ code which
demonstrates how to multitask, that is, to execute several unrelated
and distinct tasks simultaneously, using MPI for parallel execution.
In this example, there is a "master" process, identified as process 0,
and two worker processes, 1 and 2. Process 0 does nothing but choose the
input for the worker processes, transmit it, and wait for the computed
results to be returned. The programs executed by process 1 and by process 2
are quite different.
While the typical MPI model has all the worker processes executing the
same program, this example shows that that is not necessary.
The latest versions of MPI no longer support the special C++ MPI bindings,
so the examples given here have reverted to using the C MPI bindings.
Licensing:
The information on this web page is distributed under the MIT license.
Languages:
multitask_mpi is available in
a C version and
a C++ version and
a Fortran90 version.
Related Data and Programs:
multitask_mpi_test
mpi_test,
a C++ code which
uses the message passing interface (MPI)
for parallel computations in a distributed memory environment.
multitask_openmp,
a C++ code which
demonstrates how to multitask, that is, to execute several unrelated
and distinct tasks simultaneously, using OpenMP for parallel execution.
Reference:
-
William Gropp, Steven Huss-Lederman, Andrew Lumsdaine, Ewing Lusk,
Bill Nitzberg,
William Saphir, Marc Snir,
MPI: The Complete Reference,
Volume II: The MPI-2 Extensions,
Second Edition,
MIT Press, 1998.
-
William Gropp, Ewing Lusk, Anthony Skjellum,
Using MPI: Portable Parallel Programming with the
Message-Passing Interface,
Second Edition,
MIT Press, 1999,
ISBN: 0262571323.
-
William Gropp, Ewing Lusk, Rajiv Thakur,
Using MPI-2: Advanced Features of the Message-Passing
Interface,
Second Edition,
MIT Press, 1999,
ISBN: 0262571331.
-
Stan Openshaw, Ian Turton,
High Performance Computing and the Art of Parallel Programming:
an Introduction for Geographers, Social Scientists, and
Engineers,
Routledge, 2000,
ISBN: 0415156920.
-
Peter Pacheco,
Parallel Programming with MPI,
Morgan Kaufman, 1996,
ISBN: 1558603395,
LC: QA76.642.P3.
-
Marc Snir, Steve Otto, Steven Huss-Lederman, David Walker,
Jack Dongarra,
MPI: The Complete Reference,
Volume I: The MPI Core,
Second Edition,
MIT Press, 1998,
ISBN: 0-262-69216-3,
LC: QA76.642.M65.
-
The MPI web site at Argonne National Lab:
https://www-unix.mcs.anl.gov/mpi/
-
The Message Passing Interface Forum,
MPI: A Message Passing Interface Standard,
1995
-
The Message Passing Interface Forum,
MPI-2: Extensions to the Message Passing Interface,
1997
Source Code:
Last revised on 27 March 2020.