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| == ParallelHowTo == |
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| = ParallelHowTo = | |
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| === Portland Compiler === | It is possible to run CLaMS on multi-processor machines using MPI. |
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| It is possible to run CLaMS on multi-processor machines using MPI or OpenMP. | === Intel Compiler 18.0.3 === |
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| On the Ubuntu machines the PGF compiler suite is installed that has MPICH implemented. In the following a short How to: First it is necessary to make the path of the MPI libraries public by executing: for 64bit machines: {{{ . /opt/pgi/linux86-64/10.4/mpi.sh }}} for 32bit machines: {{{ . /opt/pgi/linux86/10.4/mpi.sh }}} Then compile the needed programs by executing: {{{ make useMPI=true }}} Before running the CLaMS script or a single program you have to execute: {{{ > ssh-agent > SSH_AUTH_SOCK=/tmp/ssh-arHtY17224/agent.17224; export SSH_AUTH_SOCK; > SSH_AGENT_PID=17225; export SSH_AGENT_PID; > echo Agent pid 17225; > ssh-add .ssh/id_rsa }}} This is necessary, because the processes communicate per ssh. The programs must be called as following: {{{ mpirun -np # [ --all-local ] program # - number of processors use the option --all-local for running it on the CPUs of the local machine only. }}} === Intel Compiler === The MPICH2 Library (1.3.2p1) is installed in directory ''/usr/nfs/local/local/mpich2-intel'' (for Intel C and Fortran compilers). Add the bin subdirectory of the installation directory to your path: {{{ PATH=/usr/nfs/local/local/mpich2-intel/bin:$PATH |
The MPICH Library 3.2.1 is installed in directory ''/usr/nfs/software/icg1/local/mpich-3.2.1-ifort-18.0.3''. <<BR>> Add the bin subdirectory of the installation directory of MPICH library to your path: {{{ PATH=/usr/nfs/software/icg1/local/mpich-3.2.1-ifort-18.0.3/bin:$PATH |
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| To read the man pages set MANPATH to the following: {{{ MANPATH=/usr/nfs/local/local/mpich2-intel/share/man:$MANPATH export MANPATH |
Remove serial compiled object files: {{{ make distclean |
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| The programs can be compiled with: {{{ make useComp=ifc useMPI=true <progname> |
Compile with MPI: {{{ make useMPI=true progname |
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| Execute on <n> CPUs: {{{ mpiexec -np <n> <progname> |
Execute on <n> CPUs: {{{ mpiexec|mpirun -np <n> <progname> |
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| It may be necessary to unset the memory limit: {{{ ulimit -s unlimited |
=== Intel Compiler 17.0.1 === The MPICH Library 3.2 is installed in directory ''/usr/nfs/software/icg1/local/mpich-3.2-ifort-17.0.1''. <<BR>> Add the bin subdirectory of the installation directory of MPICH library to your path: {{{ PATH=/usr/nfs/software/icg1/local/mpich-3.2-ifort-17.0.1/bin:$PATH export PATH |
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Remove serial compiled object files: {{{ make distclean }}} Compile with MPI: {{{ make useMPI=true progname }}} Execute on <n> CPUs: {{{ mpiexec|mpirun -np <n> <progname> }}} |
ParallelHowTo
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.
- 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:$PATH export PATH
Remove serial compiled object files:make distclean
Compile with MPI:make useMPI=true progname
Execute on <n> CPUs:
mpiexec|mpirun -np <n> <progname>
Intel Compiler 17.0.1
The MPICH Library 3.2 is installed in directory /usr/nfs/software/icg1/local/mpich-3.2-ifort-17.0.1.
- Add the bin subdirectory of the installation directory of MPICH library to your path:
PATH=/usr/nfs/software/icg1/local/mpich-3.2-ifort-17.0.1/bin:$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>