On Jul 7, 2011, at 5:59 PM, Qasim Ali wrote:
> Hi Jeff,
>
> Thanks for following up. I have a question to clear things.
>
> 1. If I do not specify any affinity in mpirun, what memory allocation policy
> is used by default?
None.
> a. When it is not compiled with libnuma
> b. when compiled wi
Hi Jeff,
Thanks for following up. I have a question to clear things.
1. If I do not specify any affinity in mpirun, what memory allocation policy
is used by default?
a. When it is not compiled with libnuma
b. when compiled with libnuma
BTW What do you mean by "internal memory" in OMPI?
On
Libnuma will be used automatically if you use a paffonity setting.
But note that it only applies to internal memory in OMPI - I don't remember the
version offhand, but late in the 1.5 series we set the general affinity policy
for all memory (possibly the unreleased 1.5.4?).
Sent from my phone
Hi folks,
I installed open-mpi with the libnuma library using the --with-libnuma.
Everything installed fine. When I do
./ompi_info |grep maffinity
MCA maffinity: first_use (MCA v2.0, API v2.0, Component v1.4.2)
MCA maffinity: libnuma (MCA v2.0, API v2.0, Component v1.4.2)
I
