ParallelHowTo - CLaMS

ParallelHowTo

Contents

ParallelHowTo
1. Intel Compiler 18.0.3
2. Intel Compiler 17.0.1

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>
```