On Sep 16, 2015, at 8:22 AM, marcin.krotkiewski
wrote:
>
> Thanks a lot, that looks right! Looks like some reading to do..
>
> Do you know if in the OpenMPI implementation the MPI_T-interfaced MCA
> settings are thread-local, or rank-local?
By "rank local", I assume you mean "process local"
Thanks a lot, that looks right! Looks like some reading to do..
Do you know if in the OpenMPI implementation the MPI_T-interfaced MCA
settings are thread-local, or rank-local?
Thanks!
Marcin
On 09/15/2015 07:58 PM, Nathan Hjelm wrote:
You can use MPI_T to set any MCA variable before MPI_In
You can use MPI_T to set any MCA variable before MPI_Init. At this time
we lock down all MCA variable during MPI_Init. You will need to call
MPI_T_init_thread before MPI_Init and make sure to call MPI_T_finalize
any time after you are finished setting MCA variables. For more
information see MPI-3.
Check out the MPI_T support - that should give you a lot of control, though it
is still somewhat untested and new
> On Sep 15, 2015, at 10:40 AM, marcin.krotkiewski
> wrote:
>
> I was wondering if it is possible, or considered to make it possible to
> change the various MCA parameters by ind
I was wondering if it is possible, or considered to make it possible to
change the various MCA parameters by individual ranks during runtime in
addition to the command line?
I tried to google a bit, but did not get any indication that such topic
has even been discussed. It would be a very usef
