[CMake] CTest for multiple parallel jobs

[Robert Maynard]

You can specify the PROCESSORS (
http://www.cmake.org/cmake/help/v3.0/prop_test/PROCESSORS.html ) property
on a test that will tell ctest how man processors from the pool a test
should take. Note that this still requires that you specify the affinity
for the MPI processes.

On Mon, Apr 6, 2015 at 4:04 PM, Christon, Mark <christon at lanl.gov> wrote:

>  Hi Folks,
>
>  This is actually a ctest question.   It would be nice to be able to run
> a series of test suites, serial (1-core), parallel (4-core) and long
> (8-core) with a single execution of ctest using –j <# of cores> across
> multiple nodes of a cluster.   As a prototype, consider 2 nodes, 24-cores
> on each node, so a total of 48 cores.
>
>  It appears that using ctest –j 48 simply overloads the first node.
> Now, using –mca opal_paffinity_alone 0 with openmpi does not really
> correct the issue.
>
>  Is there a way to spawn and manage a series of regression tests that
> range from 1 to 8 cores and have the jobs distributed across all of the
> available cores with some combination of ctest and mpi options?   So far, I
> have been unable to find a combination that works properly for more than
> one node.
>
>
>  - Mark
>
>  --
> Mark A. Christon
> Computational Physics Group (CCS-2)
> Computer, Computational and Statistical Sciences Division
> Los Alamos National Laboratory
> MS D413, P.O. Box 1663
> Los Alamos, NM 87545
>
>  E-mail: christon at lanl.gov
> Phone : (505) 665-9063
> Mobile: (505) 695-5649 (voice mail)
>
>  International Journal For Numerical Methods in Fluids
> <http://www.wileyonlinelibrary.com/journal/fld>
>
> --
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