43 строки
1.5 KiB
Plaintext
43 строки
1.5 KiB
Plaintext
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Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
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University Research and Technology
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Corporation. All rights reserved.
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Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
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The files in this directory are sample MPI applications provided both
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as a trivial primer to MPI as well as simple tests to ensure that your
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Open MPI installation is working properly.
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If you are looking for a comprehensive MPI tutorial, these samples are
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not enough. An excellent MPI tutorial is available here:
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http://webct.ncsa.uiuc.edu:8900/public/MPI/
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There are 2 MPI examples in this directory, each in four languages:
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- Hello world
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C: hello_c.c
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C++: hello_cxx.cc
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F77: hello_f77.f
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F90: hello_f90.f90
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- Send a trivial message around in a ring
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C: ring_c.c
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C++: ring_cxx.cc
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F77: ring_f77.f
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F90: ring_f90.f90
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The Makefile in this directory will build as many of the examples as
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you have language support (e.g., if you do not have F90 bindings
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compiled as part of Open MPI, the F90 examples will be skipped).
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The Makefile assumes that the wrapper compilers mpicc, mpic++, mpif77,
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and mpif90 are in your path.
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Although the Makefile is tailored for Open MPI (e.g., it checks the
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"ompi_info" command to see if you have support for C++, F77, and F90),
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all of the example programs are pure MPI, and therefore not specific
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to Open MPI. Hence, you can use a different MPI implementation to
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complie and run these programs if you wish.
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Make today an Open MPI day!
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