Thanks, it worked out.
On 08/16/2017 04:05 PM, Gilles Gouaillardet wrote:
My bad, i forgot btl/tcp is using all the interfaces by default (eth0 *and* ib0)
is eth0 available on all your nodes or just the node running mpirun ?
you can try to use a subnet instead of an interface name
mpirun --mc
My bad, i forgot btl/tcp is using all the interfaces by default (eth0 *and* ib0)
is eth0 available on all your nodes or just the node running mpirun ?
you can try to use a subnet instead of an interface name
mpirun --mca btl_tcp_if_include 172.24.44.0/23 ...
if you are still facing some issues,
Dear Gilles,
thank you for quick response.
pml/cm doesn't work at all
When I use "--mca pml ob1" I still see traffic in /usr/sbin/perfquery, but the
program starts running a lot slower. E. g. ib.C.64 benchmarks runs 33 seconds
in contrast to less than 1.
I also see many if following warning
Hi,
you can try
mpirun --mca pml ob1 --mca btl tcp,self ...
pml/cm has a higher priority than pml/ob1, so if you have a mtl that
fits your network (such as mtl/mxm),
then pml/ob1 will be ignored, and the list of allowed/excluded btl
become insignificant.
Cheers,
Gilles
On Wed, Aug 16, 2017 at
Hello,
I work with an Infiniband cluster, but I want to force OpenMPI to use
specific network interface.
I tried to do this for example using mpirun as follows:
mpirun --map-by node --mca btl self,tcp -np 16 bin/is.C.16
But counters returned by /usr/sbin/perfquery still keep showing that
t
