Re: [Beowulf] Virtualisation and high performance interconnects.

2007-11-01 Thread Greg Lindahl
On Thu, Nov 01, 2007 at 10:02:58AM -0400, Patrick Geoffray wrote: > Virtualization has virtually (pun intended) no effect on OS-bypass > (user-level talking directly to the virtualized hardware) operations. If implemented that way. I would bet that not all OS-bypass hardware with virtual drivers

Re: [Beowulf] Virtualisation and high performance interconnects.

2007-11-01 Thread Robert G. Brown
On Thu, 1 Nov 2007, Mark Hahn wrote: However, it does for all non-OS-bypass operations. The most important of these is memory registration, because it's not a one-time cost as the Ohio State papers have always portrayed it. For applications that do not it's also worth pointing out that virtua

[Beowulf] LECCIBG 2007

2007-11-01 Thread Douglas Eadline
For those attending SC07, I am pleased to announce the LECCIBG 1.0 .The good news is I had nothing to do with the organization, so it should be successful. BTW, the 1.0 implies the previous years were in beta phase. All the details are on the web page: http://www.clustermonkey.net//content/vie

Re: [Beowulf] Virtualisation and high performance interconnects.

2007-11-01 Thread Mark Hahn
However, it does for all non-OS-bypass operations. The most important of these is memory registration, because it's not a one-time cost as the Ohio State papers have always portrayed it. For applications that do not it's also worth pointing out that virtualization introduces some amount of jit

Re: [Beowulf] Virtualisation and high performance interconnects.

2007-11-01 Thread Patrick Geoffray
Hi Andrew, andrew holway wrote: I'm trying to find out about the effects of virtualisation on high performance interconnects. Effects on latency and bandwidth. Virtualization has virtually (pun intended) no effect on OS-bypass (user-level talking directly to the virtualized hardware) operatio

Re: [Beowulf] Virtualisation and high performance interconnects.

2007-11-01 Thread Chris Samuel
On Thu, 1 Nov 2007, andrew holway wrote: > I'm trying to find out about the effects of virtualisation on high > performance interconnects. Effects on latency and bandwidth. Google is your friend.. :-) There is an IBM presentation from the 2006 Xen conference on virtualising InfiniBand networks,

[Beowulf] Virtualisation and high performance interconnects.

2007-11-01 Thread andrew holway
Hi all, I'm trying to find out about the effects of virtualisation on high performance interconnects. Effects on latency and bandwidth. If you have anything please pass it on. Thanks Andy ___ Beowulf mailing list, Beowulf@beowulf.org To change your su

Re: [Beowulf] Web interfaces for yer cluster.

2007-11-01 Thread lcaii
While this isn't exactly a web-based interface... Interactive Supercomputing's StarP (www.interactivesupercomputing.com) is a way for both matlab and python users to take advantage of clusters with much less code development than normal compiled FORTRAN95/C sort of development normally needed