04b134eace
2. Oshmem examples moved to 'mpi' build target. 3. Oshmem examples renamed as 'shmem' => 'oshmem'. 4. Fixed warnings in oshmem_info. Refs: 3763 This commit was SVN r29663.
68 строки
2.5 KiB
Plaintext
68 строки
2.5 KiB
Plaintext
Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
|
|
University Research and Technology
|
|
Corporation. All rights reserved.
|
|
Copyright (c) 2006-2012 Cisco Systems, Inc. All rights reserved.
|
|
Copyright (c) 2007-2009 Sun Microsystems, Inc. All rights reserved.
|
|
Copyright (c) 2010 Oracle and/or its affiliates. All rights reserved.
|
|
Copyright (c) 2013 Mellanox Technologies, Inc. All rights reserved.
|
|
|
|
$COPYRIGHT$
|
|
|
|
The files in this directory are sample MPI applications provided both
|
|
as a trivial primer to MPI as well as simple tests to ensure that your
|
|
Open MPI installation is working properly.
|
|
|
|
If you are looking for a comprehensive MPI tutorial, these samples are
|
|
not enough. Excellent MPI tutorials are available here:
|
|
|
|
http://www.citutor.org/login.php
|
|
|
|
Get a free account and login; you can then browse to the list of
|
|
available courses. Look for the ones with "MPI" in the title.
|
|
|
|
There are two MPI examples in this directory, each using one of six
|
|
different MPI interfaces:
|
|
|
|
- Hello world
|
|
C: hello_c.c
|
|
C++: hello_cxx.cc
|
|
Fortran mpif.h: hello_mpifh.f
|
|
Fortran use mpi: hello_usempi.f90
|
|
Fortran use mpi_f08: hello_usempif08.f90
|
|
Java: Hello.java
|
|
C shmem.h: hello_oshmem_c.c
|
|
Fortran shmem.fh: hello_oshmemfh.f90
|
|
|
|
- Send a trivial message around in a ring
|
|
C: ring_c.c
|
|
C++: ring_cxx.cc
|
|
Fortran mpif.h: ring_mpifh.f
|
|
Fortran use mpi: ring_usempi.f90
|
|
Fortran use mpi_f08: ring_usempif08.f90
|
|
Java: Ring.java
|
|
C shmem.h: ring_oshmem_c.c
|
|
Fortran shmem.fh: ring_oshmemfh.f90
|
|
|
|
Additionally, there's one further example application, but this one
|
|
only uses the MPI C bindings:
|
|
|
|
- Test the connectivity between all processes
|
|
C: connectivity_c.c
|
|
|
|
The Makefile in this directory will build as many of the examples as
|
|
you have language support (e.g., if you do not have the Fortran "use
|
|
mpi" bindings compiled as part of Open MPI, the those examples will be
|
|
skipped).
|
|
|
|
The Makefile assumes that the wrapper compilers mpicc, mpic++, and
|
|
mpifort are in your path.
|
|
|
|
Although the Makefile is tailored for Open MPI (e.g., it checks the
|
|
"ompi_info" command to see if you have support for C++, mpif.h, use
|
|
mpi, and use mpi_f08 F90), all of the example programs are pure MPI,
|
|
and therefore not specific to Open MPI. Hence, you can use a
|
|
different MPI implementation to compile and run these programs if you
|
|
wish.
|
|
|
|
Make today an Open MPI day!
|