[ET Trac] [Einstein Toolkit] #1964: Binary neutron star sample has poor OpenMP parallelization

[Einstein Toolkit]

#1964: Binary neutron star sample has poor OpenMP parallelization
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 Reporter:  anonymous              |       Owner:                     
     Type:  enhancement            |      Status:  new                
 Priority:  unset                  |   Milestone:                     
Component:  EinsteinToolkit thorn  |     Version:  development version
 Keywords:  NsNs                   |  
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 When running the sample from the ETK/gallery page the number of OpenMP
 threads seems to be limited to 2, showing only 200% in top, although 16
 OMP threads were used.

 Other param files from /par go way beyond 1000%, showing that more threads
 are fully used.

 Could it be that there is a omp_set_num_threads(2) somewhere in the hydro
 code?

 http://einsteintoolkit.org/about/gallery/NsNsToHMNS/

 Creating 1 MPI process per core fixes the issue, obviously, and the CPU is
 fully utilized

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1964>
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