[gpaw-users] multinode run

[Jay Wai]

Dear users,

I've used gpaw with openmpi, scalapack, and fftw installed in a
supercomputer.
I've just started to try it in multiple nodes, but it is not working out.
For example, the submission of a pbs job with 2 nodes does not make any
difference from that with a single node in terms of speed.

If each node has 40 cores, should the number of cores be printed to be 80
in 2 nodes-run in a log file?
In my case, it is printed to be 40.
I could not find a line indicating the number of nodes in a log file.

I might have to ask system admins, but I wanted to first check if something
specific is required to run gpaw in multiple nodes in compiling or
something.

Best,
Jay
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