Re: [Beowulf] Re: TOE on Linux

2008-05-20 Thread Joe Landman
Greg Lindahl wrote: On Tue, May 20, 2008 at 03:10:26PM -0400, Joe Landman wrote: StarCD. Not big transfers, it doesn't move GB to its nodes. By big I mean 100s of kbytes. I thought that this class of CDF Ahh got it. Yeah, it does that. Actually a few megs between nodes (halo/shado

Re: [Beowulf] Re: TOE on Linux

2008-05-20 Thread Greg Lindahl
On Tue, May 20, 2008 at 03:10:26PM -0400, Joe Landman wrote: > StarCD. Not big transfers, it doesn't move GB to its nodes. By big I mean 100s of kbytes. I thought that this class of CDF computation, which uses a lot of memory, also does quite big transfers along the interfaces between the nodes.

Re: [Beowulf] Re: TOE on Linux

2008-05-20 Thread Joe Landman
Greg Lindahl wrote: Joe Landman wrote: Contrary to the detractors of the technologies comments, the TOE/RDMA card *did* provide fairly significant performance delta for real apps running MPI over gigabit ethernet. As a detractor of TOEs, I should point out that one data point does not prove t

[Beowulf] Re: TOE on Linux

2008-05-20 Thread Greg Lindahl
Joe Landman wrote: > Contrary to the detractors of the technologies comments, the > TOE/RDMA card *did* provide fairly significant performance delta for > real apps running MPI over gigabit ethernet. As a detractor of TOEs, I should point out that one data point does not prove that it's common th

[Beowulf] Re: TOE on Linux? (Prentice Bisbal)

2008-05-15 Thread Maurice Hilarius
Prentice Bisbal <[EMAIL PROTECTED]> wrote: Does anyone know of any network cards/drivers that support TOE (TCP Offload Engine) for Linux? A hardware vendor just told me that Linux does not support the TOE features of *any* network card. Given Linux's strong presence in HPC and the value of hav