[petsc-dev] problem with hypre with '--with-openmp=1'

Mark Adams mfadams at lbl.gov
Tue Jun 26 13:59:56 CDT 2018


On Tue, Jun 26, 2018 at 1:06 PM Satish Balay <balay at mcs.anl.gov> wrote:

> I wonder if these jobs are scheduled in such a way so that they are not
> oversubscribed.
>
> i.e number_mpi_jobs_per_node * number_of_openmp_threads_per_node <=
> no_of_cores_per_node


You are right(ish). This fixed the problem:

export OMP_NUM_THREADS=1
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