[petsc-users] Possible bug PETSc+Complex+CUDA

[Matthew Knepley]

On Thu, May 21, 2020 at 10:53 AM Rui Silva <rui.silva at uam.es> wrote:

> Hello everyone,
>
> I am trying to run PETSc (with complex numbers in the GPU). When I call
> the VecWAXPY routine using the complex version of PETSc and mpicuda
> vectors, the program fails with a segmentation fault. This problem does
> not appear, if I run the complex version with mpi vectors or with the
> real version using mpicuda vectors. Is there any problem using
> CUDA+complex PETSc?
>
> Furthermore, I use the -log_view option to run the complex+gpu code,
> otherwise the program fails at the beggining.
>

What version of CUDA do you have? There are bugs in the versions before
10.2.

  Thanks,

    Matt


> Best regards,
>
> Rui Silva
>
> --
>   Dr. Rui Emanuel Ferreira da Silva
>   Departamento de Física Teórica de la Materia Condensada
>   Universidad Autónoma de Madrid, Spain
>   https://ruiefdasilva.wixsite.com/ruiefdasilva
>   https://mmuscles.eu/
>
>

-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener

https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
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