Hi Luis
That's awkward, because if the numa/libnuma packages were properly
installed,
the softlink should have been created.
Maybe check with "yum list |grep numa", then if something is missing use
"yum installl ...".
[Anyway, maybe the compute nodes use a different mechanism to pull their
system
Hi Gus,
Yeap, I can see softlink is missing on the compute nodes.
Thanks!
Luis
On 19/07/2023 17:42, Gus Correa via users wrote:
If it is installed, libunuma should be in:
/usr/lib64/libnuma.so
as a softlink to the actual number-versioned library.
In general the loader is configured to search
If it is installed, libunuma should be in:
/usr/lib64/libnuma.so
as a softlink to the actual number-versioned library.
In general the loader is configured to search for shared libraries
in /usr/lib64 ("ldd " may shed some light here).
You can check if the numa packages are installed with:
yum lis
It's not clear if that message is being emitted by Open MPI.
It does say it's falling back to a different behavior if libnuma.so is not
found, so it appears if it's treating it as a warning, not an error.
From: users on behalf of Luis Cebamanos via
users
Sent:
Luis,
That can happen if a component is linked with libnuma.so:
Open MPI will fail to open it and try to fallback on an other one.
You can run ldd on the mca_*.so components in the /.../lib/openmpi directory
to figure out which is using libnuma.so and assess if it is needed or not.
Cheers,
Gil
