[Wien] lapw2 mpi parallelization limits

[Scott Beardsley]

> 1) I mentioned something like mvapich since it's worked well for me
> while mpich has not and in fact the version I got form my vendor
> (ofed) was broken; I've never used openmpi.

I usually go with what my vendor recommends unless I have a good reason.
Sounds like you had one.

> 2) I'm not sure you'll find anyone on this mailing list who knows as
> much about nfs as you do

I've ruled out NFS completely by copying my working directory to a local
disk and running "x lapw2 -up -p" from there. The problem persists. :(