Re: [OMPI users] can't understand the mean of "ofud" in openmpi

2010-12-02 Thread Gus Correa
Hi Jeff I am glad this question was asked. Thanks to whoever did it. Acronyms are always a pain, particularly if you don't know them, and they are in no dictionary. OFUD, OFED, OPENIB, MCA, BTL, SM, OOB, ... the list goes on and on. Your answer makes a great start for another FAQ entry, called,

Re: [OMPI users] can't understand the mean of "ofud" in openmpi

2010-12-02 Thread Jeff Squyres
On Dec 2, 2010, at 3:59 AM, 阚圣哲 wrote: > When I use openmpi mpirun --mca btl , I find arg1 can be ofud, self, > sm, openib, but www.open-mpi.org desn't explain those args. "BTL" stands for "byte transfer layer" -- is the lowest networking software layer for the "ob1" MPI transport in Open MPI

[OMPI users] can't understand the mean of "ofud" in openmpi

2010-12-02 Thread 阚圣哲
Hi, When I use openmpi mpirun --mca btl , I find arg1 can be ofud, self, sm, openib, but www.open-mpi.org desn't explain those args. I can't understand the mean of "ofud", what different between "ofud" and "openib", I also can't understand the different between "ibcm" and "rdmacm", when I use