How do I check the version of MPICH?

Question

As stated in the question, what is the command that lists the current version of MPICH? I am running CentOS.

Answer 1

Depending on your rights, you can check yum (or sudo yum):

$> yum info mpich2
...
Name        : mpich2
Arch        : x86_64 
Version     : 1.2.1
Release     : 2.3.el6
Size        : 3.7 M
Repo        : base
...

shows the relevant section on my machine. Repo : base would be Repo : installed for the version you have installed.

Or you can check mpirun or mpiexec:

$> mpirun --version
mpirun (Open MPI) 1.6.3