Andrea Lani <[email protected]> writes:

> Dear Devs,
>
> first of all, even after the latest Karl's fix, my GPU-enabled solver
> (using PETSc's KSPGMRES and PCASM) still gives a substantially different
> residual after one time step in 1 or more GPUs:
>
> +0.72 (1 GPU) against -1.00 (2-8 GPU).
>
> The situtation is even more dramatic for PCBJACOBI: in this case it works
> the same on 1 GPU and crashes on more GPUs ( "Null argument, when expecting
> valid pointer! [0]PETSC ERROR: Trying to zero at a null pointer!").

*always* send the entire error message

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