[petsc-dev] Removed functions in MPI 3

[Karl Rupp]

Hi Jed,

>     Just out of curiosity: Does anybody have any estimates on the number
>     of MPI 1.x implementations in use out there?
>
>
> Satish probably knows more than I, but MVAPICH1 had releases not that
> long ago, and it's still quite common on clusters. Then there are
> oddities like the scali MPI that we encountered recently. (They seem to
> have copied an mpi.h from an MPI-2 implementation, then only implemented
> part of it, which may be a strict subset of MPI-1.) I wish people would
> upgrade so we wouldn't have to check for failure to implement a 15-year
> old API, but I expect PETSc will be supporting MPI-1 for some years yet.

Okay, I see. Better not to mention the additional delay introduced by 
package repositories...

Best regards,
Karli