On Wed, Nov 15, 2006 at 05:41:45PM +0530, Vikrant Kumar wrote: > 1. I understand that a 1.6 release is around the corner. Can anyone > provide a more definite time? Would be really helpful to plan things > on my side.
You probably already saw this, but we released PVFS 2.6.0 today. > 2. I have a cluster with 11 nodes connected with Infiniband . Each > node has four Opteron cores. My application uses MPI IO and I would > like to test it up to 32 way. Given the cluster and the application > requirement, what would be the ideal number of servers for this > set-up? I was thinking either four or eight PVFS2 servers, being > shared with the computing-cores on some nodes. I have read the FAQ > entry and I guess this is a very general question. But I just > wanted to get a quick review of the layout from you guys. 8 is a good number for a lot of workloads. You can use fewer datafiles if you find your workload uses lots of small files, while still retaining the ablity to have all 8 servers working together for larger file accesses. > 3. Another thing is when a node is rebooted. The provided script > file "pvfs2-server.rc" can take care of the server but what about > client application, the kernel module and the mount point? Is there > a way to automate the startup of all these as well. I think this > would be a critical thing for this bigger installation. The problem with automating the kernel moudle and mounting process is that every distribution does it a little differently. This is an area where we really can't make too many assumptions. The best way to automate it is to create a script that does the appropriate things (load kernel module, start up pvfs2-client and pvfs2-client-core, mount the file system) for your system. Perhaps admins from other sites might have ideas for you. Have fun ==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
