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As stated in the question, what is the command that lists the current version of MPICH? I am running CentOS.
749
With OpenMPI, the easiest thing to do is to run ompi_info ; the first few lines will give you the information you want.
MPICH is supposed to be high-quality reference implementation of the latest MPI standard and the basis for derivative implementations to meet special purpose needs. Open-MPI targets the common case, both in terms of usage and network conduits.
High-Performance Portable MPI. MPICH is a high performance and widely portable implementation of the Message Passing Interface (MPI) standard. MPICH and its derivatives form the most widely used implementations of MPI in the world.
The command you run to start your application with MPICH is mpiexec, so the way to check the version is:
mpiexec --version
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