Cisco Systems GEM318P Manual De Usuario

This section describes how to compile MPI programs. Compiling MPI applications from source code 
requires adding several compiler and linker flags. MVAPICH MPI provides wrapper compilers that add 
all appropriate compiler and linker flags to the command line and then invoke the appropriate underlying 
compiler, such as the GNU or Intel compilers, to actually perform the compile and/or link. This section 
also provides examples of how to use the wrapper compilers. To compile MPI programs, perform the 
following steps:

Log in to your local host.

Copy the example files to your $HOME directory.

The example files can be copied as follows:

host1$ cp -r /usr/local/topspin/mpi/examples $HOME/mpi/mpich/src/examples/hello

The files in the /usr/local/topspin/mpi/examples directory are sample MPI applications that are provided 
both as a trivial primer to MPI as well as simple tests to ensure that your MPI installation works properly. 
There are two MPI examples in the directory, each in four programming languages.

The following example shows Hello world:

The following example sends a trivial message around in a ring:

A comprehensive MPI tutorial is available at the following URL:

C

hello_c.c

C++

hello_cxx.cc

F77

hello_f77.f

F90

hello_f90.f90

C

ring_c.c

C++

ring_cxx.cc

F77

ring_f77.f

F90

ring_f90.f90