[Wien] Fine grained parallelism without kpoint parallelism

[Peter Blaha]

> I have a simple question regarding the use of fine grained parallelism
> in WIEN2k.
> 
> Does the inability to run WIEN2k with k-point parallelism
> (e.g. no passwordless rlogin access to nodes)

On most clusters rsh (and ssh) to the nodes works only, if these nodes
are allocated to you (via some batch-job)!

How about passwordless ssh ?? (ssh-keygen (without passphrase))

> necessarily prevent me from using the
> fine grained parallelism?
> I would be surprised if this is so, but I thought I would
> ask before trying it.

mpi jobs also work via an ssh or rsh command, so either the k-point
parallel version can be made working, or the mpi Version will not run
either.

> 
> If possible,  I suppose the .machines file  would have one line for the
> processors in this case, like
> 
> 1:proc1 proc2 proc3

That's right.

                                      P.Blaha
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Peter BLAHA, Inst.f. Materials Chemistry, TU Vienna, A-1060 Vienna
Phone: +43-1-58801-15671             FAX: +43-1-58801-15698
Email: blaha at theochem.tuwien.ac.at    WWW: http://info.tuwien.ac.at/theochem/
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