Feel free to correct me if im wrong.
OMPI assumes you have a fast network and checks for them. If they
are not found it falls back to tcp.
So if you leave out the --mca etc etc It should use the mx if
its available. Im not sure how MX responds if one of the hosts does
not have a
Dear OpenMPI List:
>From looking at a recent thread, I see an mpirun command with shared
memory and mx:
mpirun -mca btl mx,sm,self -np 2 pi3f90.x
This works. I may have forgot to mention it, but I am using 1.1.2. I
see there is an -mca mtl in version 1.2b1 . I do not think this exist
Dear OpenMPI List:
I am running the Myrinet MX btl with OpenMPI on MacOSX 10.4.
I am running into a problem. When I run on one processor per node,
OpenMPI runs just fine. When I run on two processors per node
(slots=2), it seems to take forever (something is hanging).
Here is
