Re: [Beowulf] A Sample MPI job

2007-02-20 Thread Mark Hahn
I have a big system ( proprietory system not beowulf ) to maintain and I don't know anything about programming. beowulf doesn't mean "weekend hack of noname parts" - proprietary-ness is orthogonal to the beowulf design principle... I want to test the performance of this system. Can anyone send

Re: [Beowulf] anyone using 10gbaseT?

2007-02-20 Thread Patrick Geoffray
Hi Mark, Mark Hahn wrote: Hi Beowulfers, have you had any experience using 10gbaseT yet? No switch available with 10G-BaseT ports yet (there are not many 10GigE switches to begin with). There may be new products by the end of 2007 with such ports, but I am not optimistic about general availa

[Beowulf] anyone using 10gbaseT?

2007-02-20 Thread Mark Hahn
Hi Beowulfers, have you had any experience using 10gbaseT yet? I happened on a media story about how quite a few vendors have recently intro'd support for it. the only nics mentioned were the heavyweight encumbered-with-TOE kind - on them at least, the article mentioned 20-25W dissipation. (w

Re: [Beowulf] Re: failure trends in a large disk drive population

2007-02-20 Thread Mark Hahn
Not sure the vapor pressure of the perfluoroethers that they use as lubricants varies that much over the operating temperature regime of a disk drive. on the other hand, do these lubricants tend to get sticky or something at lowish temperatures? the google results showed significantly grea

Re: [Beowulf] Re: failure trends in a large disk drive population

2007-02-20 Thread Richard Walsh
David Mathog wrote: throwing scan errors is on the way out. Quite surprising about the lack of a temperature correlation though. At the very least I would have expected increased temps to lead to faster loss of bearing lubricant. That tends to manifest as a disk that spun for 3 years Not

[Beowulf] BayBUG meeting today, February 20 2007 in Sunnyvale CA

2007-02-20 Thread Donald Becker
Bay Area Beowulf User Group (BayBUG) Bi-monthly in 2007, our first 2007 meeting will be February 20, 2007 2:30 - 5:00 p.m. AMD headquarters Common Building, Room C-6/7/8 991 Stewart Drive Sunnyvale CA Join us for food and drinks and to learn from and network with other Linux HPC professionals.