[mvapich-discuss] Is there a way to have mpiexec (hydra) export '-env' by default?

[Mehmet Belgin]

Hi Jonathan

> Actually, mpiexec (hydra) exports the the environment by default.  We
> added the -export option to mpirun_rsh in order to give an operating
> mode similar to mpiexec.

Oh, I wonder why it is not the case for us then. We have to explicitly use -env to make sure the the env is exported. Is there a compile or runtime parameter that influences this behavior that we might have toggled unintentionally?



On Sep 15, 2014, at 4:32 PM, Jonathan Perkins <perkinjo at cse.ohio-state.edu> wrote:

> On Mon, Sep 15, 2014 at 03:58:14PM -0400, Mehmet Belgin wrote:
>> Hi everyone,
>> 
>> I was wondering if it is possible to make the "-env" default behavior for hydra (using a runtime or compile time config). Currently users need to remember providing this parameter to mpirun and sometimes things gets forgotten. I know that the same functionality ('-export') for mpirun_rsh was made default with 2.0 and I was wondering if there is a specific reason why hydra does not do the same?
>> 
>> Otherwise, I am considering a wrapper for mpirun, but I *really* don't like wrappers! :)
> 
> Actually, mpiexec (hydra) exports the the environment by default.  We
> added the -export option to mpirun_rsh in order to give an operating
> mode similar to mpiexec.
> 
> -- 
> Jonathan Perkins