On 25/11/2014 21:48, Johan Hake wrote:
Hello!
I just pushed some fixes to the jit interface of DOLFIN. Now one can
jit on different mpi groups. Previously jiting was only done on rank 1
of the mpi_comm_world. Now it is done on rank 1 of any passed group
communicator.
Maybe I'm missing something here, but could you explain what is the
advantage of doing it this way?
If you have several processes JITing the same code, where do they save
it in the filesystem?
If they all share the same filesystem, surely this will take up more
resources, as more processes
try to write at the same time?
Or is it intended for cases where the Expression is different on
different MPI groups?
Chris
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