[petsc-users] PETSc and AMPI

[Jed Brown]

Barry Smith <bsmith at mcs.anl.gov> writes:
>    Way more complicated then needed :-)

Heh, I was just spelling it out.

>> If AMPI creates threads dynamically,
>
>   How could it possibly create threads dynamically and still be
>   running in the MPI 1 model of a consistent number of MPI "processes"
>   at all times?

I don't know, but it seems plausible that it would over-subscribe and
then dynamically migrate MPI ranks around.
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