[mpich-discuss] MPI_Get on the same memory location

[Balaji, Pavan]

On Aug 22, 2014, at 1:43 PM, Brian Van Straalen <bvstraalen at lbl.gov> wrote:
> Is there a significant cost to have the MPI implementation provide a check for aliasing?

We do check for this error by default in MPICH (which is why this email thread started).

There’s a way to turn off the checking through a configure flag as well as an environment variable, if needed.  But that’s essentially saying — I know it’s wrong, but I’m too lazy to fix my application.

  — Pavan

--
Pavan Balaji  ✉️
http://www.mcs.anl.gov/~balaji