PGI 14.4: Incomplete CDK installation?

Hi All,

Is the CDK installation of 14.4 complete? I noticed that the $SRC/install_mpich file is missing the “Remote execution method (ssh or rsh, etc.)” and “$SRC/install_cdk” sections. Is this part of the new installation procedure or is it supposed to still be there?

~Kyle

Kyle,

Great question. With PGI 2014, MPICH was updated to version 3.0.4. As of the 14.4 update, we noticed that the “remote execution method” question really applied to the old MPICH1 version, and was functionally obsolete with the newer MPICH. As a result, we removed it as part of a general cleanup of the MPICH install script for 14.4.

MPICH 3.0.4 now dynamically selects a transport mechanism at runtime. You can optionally override this behavior (and force a choice, say rsh or ssh) via the -launcher flag to mpirun/mpiexec. You can also set the $HYDRA_LAUNCHER environment variable to use the desired launcher if you would rather not pass this flag every time.

This page has more information, which you may find helpful:

http://wiki.mpich.org/mpich/index.php/Using_the_Hydra_Process_Manager

Hope this helps!

Best regards,

+chris

Hi Chris,

Thanks for the reply. Couldn’t have asked for a better one.

Cheers,
Kyle