[Beowulf] RE: Compare and contrast MPI implementations

Jeffrey B. Layton laytonjb at charter.net
Mon Dec 19 07:27:48 PST 2005

Very Cool Trick!

> But there are so many different ways to remove fur from felines.  E.g.
> rgb at lilith|B:1001>ssh lucifer "FROG='tasty';echo \$FROG"
> tasty
> Or shell scripts.  Or conditionals in your shell init files (or sshrc)
> such as (pseudocode):
> if(FROG == 'tasty')
>   MPI_FLAVOR=tasty
>   export MPI_FLAVOR
> else
>   MPI_FLAVOR=toasty
>   export MPI_FLAVOR
> together with the example above, where of course you can do anything you
> like under the various conditionals.  Seriously.  Not all solutions are
> necessarily "easy" to make automagical for a non-Unix-hacker type person
> or easy to administratively support, but neither are they particularly
> difficult and they CAN be documented, one would think.
> But I think modules already sound like they take care of the problem.  I
> was just advertising for ssh, since I like smart remote shells.  rsh is
> fast, but it isn't smart and it isn't secure.
>   rgb

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