Re: [Beowulf] Computation on the head node

2008-05-17 Thread Perry E. Metzger
Vlad Manea <[EMAIL PROTECTED]> writes: > On the other hand I do not want to see all may cluster idle waiting > for the file server. The w/r rate transfer for these NAS is ~30-40 > MB/sec which probably is a modest one. > > Do you have any recommendations for the file server? I would suggest, aga

Re: [Beowulf] Off-the-wall: WRF Model and PS3's (or Cell)

2008-05-17 Thread Gerry Creager
Good point. Thanks! John Leidel wrote: You might also want to talk to the folks at LANL to see if they've done any initial ports of WRF to RoadRunner. On Sat, 2008-05-17 at 09:06 -0500, Gerry Creager wrote: Bernard Li wrote: Hi Gerry: On Fri, May 16, 2008 at 12:37 PM, Gerry Creager <[EMA

Re: [Beowulf] Computation on the head node

2008-05-17 Thread Mark Hahn
which are the disadvantages of using the head node as a computation node? just that other headnode activities will interfere with compute jobs and vice versa. this may not matter, depending on your workload, habits of users (compilation, etc). mainly you can just pick out certain cases where

Re: [Beowulf] Off-the-wall: WRF Model and PS3's (or Cell)

2008-05-17 Thread John Leidel
You might also want to talk to the folks at LANL to see if they've done any initial ports of WRF to RoadRunner. On Sat, 2008-05-17 at 09:06 -0500, Gerry Creager wrote: > Bernard Li wrote: > > Hi Gerry: > > > > On Fri, May 16, 2008 at 12:37 PM, Gerry Creager <[EMAIL PROTECTED]> wrote: > > > >>

Re: [Beowulf] Computation on the head node

2008-05-17 Thread Perry E. Metzger
Vlad Manea <[EMAIL PROTECTED]> writes: > I have a question regarding the head node for a small cluster that I > would like to build: > > which are the disadvantages of using the head node as a computation > node? Since I plan to have NFS on it, I guess there will be > problems with comunication w

Re: [Beowulf] Off-the-wall: WRF Model and PS3's (or Cell)

2008-05-17 Thread Gerry Creager
Bernard Li wrote: Hi Gerry: On Fri, May 16, 2008 at 12:37 PM, Gerry Creager <[EMAIL PROTECTED]> wrote: Apparently the folks at TeraSoft can bulk that up a little bit. To, like, 2GB, or so I'm told. Curious where you get that information from. Their website listing PS3 for sale says 256MB (