[ET Trac] [Einstein Toolkit] #1964: Binary neutron star sample has poor OpenMP parallelization
Einstein Toolkit
trac-noreply at einsteintoolkit.org
Mon Oct 3 05:28:27 CDT 2016
#1964: Binary neutron star sample has poor OpenMP parallelization
------------------------------------+---------------------------------------
Reporter: anonymous | Owner:
Type: enhancement | Status: new
Priority: unset | Milestone:
Component: EinsteinToolkit thorn | Version: development version
Resolution: | Keywords: NsNs
------------------------------------+---------------------------------------
Comment (by anonymous):
This was run on a single node using
OMP_NUM_THREADS=16 mpirun -np 2 cactus ns.par
It seemed that most of the time it was using 200% only.
Later doing "the same" run again it suddenly did full 1600%, so there
seems to be no issue.
It was during the evolution, while the iterations incremented, so that
suggested that it was that low during the whole iteration, which seemed
weird.
I tried it again and it was fine!
--
Ticket URL: <https://trac.einsteintoolkit.org/ticket/1964#comment:3>
Einstein Toolkit <http://einsteintoolkit.org>
The Einstein Toolkit
More information about the Trac
mailing list