On 11/23/2010 06:47 AM, Barrett, Brian W wrote:
Short answer: we need the "extra" decrement at the end of MPI init.
Long answer: Ok, so I was somewhat wrong :).
(surprised this didn't show up in testing).
Confirmed with our basic pingpong test:
vayu2:~/MPI > mpirun -n 2 ./pp142 | head -
Short answer: we need the "extra" decrement at the end of MPI init.
Long answer: Ok, so I was somewhat wrong :).
The count of users is initialized to 0. If it's greater than zero, the event
library is polled every time opal_progress() is called, which kills latency
(surprised this didn't show
On Nov 22, 2010, at 11:35 AM, Barrett, Brian W wrote:
> Um, the counter starts initialized at one.
Does that mean that we should or should not leave that extra _decrement() in
there?
> Brian
>
> On Nov 22, 2010, at 9:32 AM, Jeff Squyres wrote:
>
>> A user noticed a specific change that we mad
Um, the counter starts initialized at one.
Brian
On Nov 22, 2010, at 9:32 AM, Jeff Squyres wrote:
> A user noticed a specific change that we made between 1.4.2 and 1.4.3:
>
>https://svn.open-mpi.org/trac/ompi/changeset/23448
>
> which is from CMR https://svn.open-mpi.org/trac/ompi/ticket/2
