Thanx Ken. "A close approximation might be to pass -genvnone and then specify explicitly what you want to pass to executables with -envlist." Wouldn’t mpirun complain if on the same line where are saying -genvnone (pass nothing) and pass this list? I guess I could give it a try. OpenMPI and Intel MPI have made use of a config file $HOME/.mpiexec.conf (ie. In Intel MPI) where one puts all the envs, does hydra have anything similar? Daniel Faraj HPE Performance Engineering 651.683.7605 Office [email protected] -----Original Message----- From: Kenneth Raffenetti [mailto:[email protected]] Sent: Thursday, June 15, 2017 10:05 AM To: [email protected]; Faraj, Daniel <[email protected]> Subject: Re: [mpich-discuss] -genvexcl Hi Daniel, No, we don't support -genvexcl with Hydra. A close approximation might be to pass -genvnone and then specify explicitly what you want to pass to executables with -envlist. Ken On 06/14/2017 06:40 PM, Faraj, Daniel wrote:
Dear MPICH folks,
Flavors of MPI implementations support methods to allow or suppress mpirun from propagating environment variables to hosts in the MPI job.
MPICH 2.3 does have similar options however it does not seem to have the –genvexcl option to exclude certain environment variables from propagating.
Is there a way to do so?
-Daniel
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