Re: [Beowulf] looper

2008-09-28 Thread Nifty niftyompi Mitch
On Mon, Sep 22, 2008 at 10:50:37PM +, Dan Stromberg wrote: > > I was asked by my employer to publish this a bit ago, so here it is: > > http://stromberg.dnsalias.org/~dstromberg/looper/ > > It's a multithreaded script for running n POSIX shell commands m at a > time with good error checking

Re: [Beowulf] RE: MS Cray

2008-09-28 Thread Nifty niftyompi Mitch
On Mon, Sep 22, 2008 at 04:13:05PM -0700, Naveed Near-Ansari wrote: >> >> A big disadvantage of in-house is that it leads to an inventory of >> ancient gear that becomes hard to maintain, and balkanized ownership >> (we bought that for Project X, and though Project X is long gone, the >> forme

[Beowulf] Compute Node OS on Local Disk vs. Ram Disk

2008-09-28 Thread Jon Forrest
There are two philosophies on where a compute node's OS and basic utilities should be located: 1) On a local harddrive 2) On a RAM disk I'd like to start a discussion on the positives and negatives of each approach. I'll throw out a few. Both approaches require that a compute node "distributio

Re: [Beowulf] What services do you run on your cluster nodes?

2008-09-28 Thread Donald Becker
On Fri, 26 Sep 2008, Robert G. Brown wrote: > On Fri, 26 Sep 2008, Donald Becker wrote: > > > But that rule doesn't continue when we move to higher core counts. We > > still want a little observability, but a number for each of a zillion > > cores is useless. Perhaps worse than useless, because