HI Arun,
Its going to be chatty, but you may want to see if strace helps in diagnosing:
mpirun -np 2 (all your favorite mpi args) strace -f send_recv 1000 1
huge pages often helps reduce pressure on a NIC's I/O MMU widget and speeds up
resolving va to pa memory addresses.
On 7/19/23, 9:24
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
