[petsc-dev] better regular testing on accelerators

Jed Brown jed at jedbrown.org
Wed Jun 12 09:58:25 CDT 2019

Would it be sufficient to add the CUDA arguments to PETSC_OPTIONS when running the test suite on those machines?

"Smith, Barry F. via petsc-dev" <petsc-dev at mcs.anl.gov> writes:

>    In order to get better testing on the accelerators I think we need to abandon the -vec_type cuda approach scattered through a handful of examples and instead test ALL examples that are feasible automatically with the various accelerator options.  I think essentially any examples that use AIJ are feasible for testing (those that use BAIJ, SBAIJ, Ell are not) I am not sure if there is an automatic way to determine all of these cases. Labeling all such test cases manually would likely miss some and be out of date immediately.
>    Any thoughts?
>    Thanks
>    Barry
> Maybe we could short circuit the issue by having a mode of configuring or compiling or running where MatCreate_AIJ and VecCreate_ are bypassed directly to the accelerator cousins (this is not completely trivial because the cousins generally construct the basic ones and then convert themselves to the cousin).

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