MPITEST(1)

USER COMMANDS

MPITEST(1)

NAME

mpitest - measures the MPI library performance

SYNOPSIS

mpitest -nodes=nodes command

DESCRIPTION

Mpitest measures bandwidth or round trip time in the MPI communication library.

OPTIONS

-nodes=nodes

Specify number of nodes. nodes must be 2x1 or 1x2.

2x1

This option is used to evaluate host to host communication.

1x2

This option is used to evaluate communication within an SMP compute host.

command

Specify command. command must be mpi_bw, mpi_bw2 or mpi_rtt.

mpi_bw

This command is specified to measure burst-mode communicaiton bandwidth.

mpi_bw2

This command is specified to measure ping-pong communicaiton bandwidth.

mpi_rtt

This command is specified to measure round trip time.

SEE ALSO

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