On Thu, Jul 05, 2007 at 02:37:02PM -0500, Glenn Johnson wrote: > The compute nodes will have the Myri-10G cards. The disks on the compute > nodes will make up a PVFS2 file system. The compute nodes will also be > PVFS2 clients. Data on this file system will consist of raw output from > calculations. The data files will not be immediately deleted but they > will not be backed up either. Users are expected to save post-processing > files in the home directory on the head node. The head node does not > have a Myri-10G card. I would like to be able to mount the PVFS2 file > system on the head node via Ethernet (Gb) if that is possible. I guess > what I am not sure about is if I can use the MX bmi for the I/O servers > and clients on the compute nodes and TCP for the client on the head > node.
Since the head node won't have MX, one approach might be to "multi-home" the pvfs servers so they are listening on both the MX interface (for the compute nodes) and on TCP (for the head node). Pete does something like this for his Infiniband cluster. Another approach, though one that is not likely to give great performance, is to have the PVFS clients export the file system via NFS to the head node. ==rob -- Rob Latham Mathematics and Computer Science Division A215 0178 EA2D B059 8CDF Argonne National Lab, IL USA B29D F333 664A 4280 315B _______________________________________________ Pvfs2-users mailing list [email protected] http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
