[Wien] error in k-point parallel execution

[Mahmoud Payami]

Dear Torsten, Stefaan, Kenneth,

Thank you very much for your patience and valuable helps. I think with these
tip I am able to manage.

With kind regards,
Mahmoud


>
> > > What I mean is: When you log in on condmat2, do you have the same home
> > > directory as on localhost? You can test this with "touch file_of_zero"
> > > on localhost, then see if it is also present on condmat2.
> >
> > I executed the command "touch file_of_zero" on both "localhost" and
> > "condmat2" and no output resulted but the shell prompt.
>
> What Torsten meant is this: the command 'touch file_of_zero' will create a
> file with name 'file_of_zero' and no content (this gives you indeed no
> output but the prompt). Do 'ls -l file_of_zero', to see whether this file
is
> created on localhost (it must). Then go to condmat2, and do 'ls -l
> file_of_zero' again (without touch first). Does that same file exists also
> there? If so, then localhost and condmat2 share the same directory, as it
> should. If not, then wien2k will not work in parallel.
>
> > > What do you get from "echo $SCRATCH" on localhost and condmat2?
> >
> > I get "./" from both pc's.
>
> If the directories are indeed shared, ./ should be OK. But for this types
of
> clusters, it is more efficient to put $SCRATCH to /tmp: the large vector
> files will then be stored in the local /tmp of each machine, and will not
> fill the single disk of localhost (but don't forget to clean the /tmp of
> each machine from time to time...)
>
> > > What do you get from "echo $path" on localhost and condmat2?
> >
> > I get nothing using "echo $path" but usin "env" I get:
>
> For your bash, you need 'echo $PATH'.
>
> > > When you log in on condmat2, can you execute lapw1 manually? Try, in a
> > > shell: "which lapw1", and if it gives you a response, try "lapw1".
What
> > > is the result?
> >
> > I tried "which lapw1" on both PC's and obtained:
> > "/home/wien2k/.WIEN_ROOT/lapw1".
> >
> > I tried "run lapw1" on both PC's in the directory TiC which I had
already
> > worked with, and obtained:
> > ------------
> > ERROR: option lapw1 does not exist !
>
> 'run lapw1' does not exist. Use 'x lapw1' instead. (but with 'run lapw1'
you
> effictively use the 'run' command, as your output shows).
>
> Conclusion: it seems you have installed wien2k on all machines separately,
> and did not connect properly their disks. Therefore serial calculations
> work, parallel ones don't. In a good set-up, you have to install wien2k
only
> ONCE on a parallel cluster, namely on the disk that is NFS-shared by all
> machines (but I can't help you with the technical details about how to do
> that).
>
> Stefaan
>
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