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cea-hpc / wi4mpi

Wrapper interface for MPI
BSD 3-Clause "New" or "Revised" License
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Unexpected returns from `MPI_Type_get_envelope` in interface mode #51

Closed spoutn1k closed 9 months ago

spoutn1k commented 1 year ago

Hello everyone,

I have been trying to build a GPU code (PETSc https://gitlab.com/petsc/petsc) using Wi4MPI in interface mode. The build went well, but I am getting an error at execution about the return values of MPI_Type_get_envelope:

In a gist for brevity: https://gist.github.com/spoutn1k/34160841a22a818dc813e0531db3fcf5

It would seem the returned values are not what the program expects in: https://gitlab.com/petsc/petsc/-/blob/main/src/vec/is/sf/interface/sftype.c#L48

I am planning to look further into it, but I wanted to create this issue to open the discussion on this issue, and not waste time if this is known behaviour.

Clement-Fontenaille commented 1 year ago

Hi JB,

thanks for bringing this up, I am attempting to reproduce this issue. Can you provide the configure line used to compile petsc, as well as a test code that produces the error ?