hi, I'm testing pvfs2 over both InfiniBand and IPoIB. For IB, I started pvfs2 server with config file like ib://hostname:3335.... ForIPoIB, pvfs2 servers use config file like tcp://ipoib-address.3334.....
Then I mounted pvfs2 file system accrodingly in clients, using either ib://hostname:3335 or tcp://ipoib-address:3334... After that, I run mpi-io test program on clients to measure R/W bandwidth of pvfs2. To my surprise the ipoib gives a better performance number than IB, which can't be true since ipoib involves a lot of overhead on top of IB. So I doubt that clients might not be talking to pvfs2 servers using IB or ipoib as I expect. I want to know what kind of communication transport a client is using (is it tcp/ip, ipoib or IB). How can I implement that task? thanks! xiangyong ouyang _______________________________________________ Pvfs2-users mailing list [email protected] http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
