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## page was renamed from HowToParallel
== ParallelHowTo ==

<<TableOfContents>>

It is possible to run CLaMS on multi-processor machines using MPI.

=== Intel Compiler 18.0.3 ===

 The MPICH Library 3.2.1 is installed in directory ''/usr/nfs/software/icg1/local/mpich-3.2.1-ifort-18.0.3''.
<<BR>>
 Add the bin subdirectory of the installation directory of MPICH library to your path:
 {{{
PATH=/usr/nfs/software/icg1/local/mpich-3.2.1-ifort-18.0.3/bin:$PATH
export PATH
}}}

 Remove serial compiled object files:
 {{{
make distclean
}}}

 Compile with MPI:
 {{{
make useMPI=true progname
}}}

 Execute on <n> CPUs:
 {{{
mpiexec|mpirun -np <n> <progname>
}}}

=== Intel Compiler 17.0.1 ===

 The MPICH Library 3.2 is installed in directory ''/usr/nfs/software/icg1/local/mpich-3.2-ifort-17.0.1''.
<<BR>>
 Add the bin subdirectory of the installation directory of MPICH library to your path:
 {{{
PATH=/usr/nfs/software/icg1/local/mpich-3.2-ifort-17.0.1/bin:$PATH
export PATH
}}}

 Remove serial compiled object files:
 {{{
make distclean
}}}

 Compile with MPI:
 {{{
make useMPI=true progname
}}}

 Execute on <n> CPUs:
 {{{
mpiexec|mpirun -np <n> <progname>
}}}