Re[2]: [Beowulf] MPICH vs. OpenMPI

2008-04-27 Thread Håkon Bugge
Hi Jan, At Wed, 23 Apr 2008 20:37:06 +0200, Jan Heichler <[EMAIL PROTECTED]> wrote: >From what i saw OpenMPI has several advantages: - better performance on MultiCore Systems because of good shared-memory-implementation A couple of months ago, I conducted a thorough study on intra-node per

Re[3]: [Beowulf] MPICH vs. OpenMPI

2008-04-27 Thread Jan Heichler
Hallo Håkon, Freitag, 25. April 2008, meintest Du: HB> Hi Jan, HB> At Wed, 23 Apr 2008 20:37:06 +0200, Jan Heichler <[EMAIL PROTECTED]> wrote: >> >From what i saw OpenMPI has several advantages: >>- better performance on MultiCore Systems >>because of good shared-memory-implementation HB> A

[Beowulf] Mellanox/Flextronics IB switch problem ?

2008-04-27 Thread Mikhail Kuzminsky
I have following output from ibcheckerrors utility: c5ws7:/home/guest # ibcheckerrors #warn: counter LinkDowned = 20 (threshold 10) Error check on lid 1 (MT47396 Infiniscale-III Mellanox Technologies) port all: FAILED #warn: counter LinkDowned = 13 (threshold 10) Error check on lid 1 (MT4739

RE: [Beowulf] Mellanox/Flextronics IB switch problem ?

2008-04-27 Thread Gilad Shainer
Hi Mikhail, I general, I had no issues using Flextronics 8 port switches. I will try to get someone to contact you for solving this issue. Gilad. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mikhail Kuzminsky Sent: Sunday, April 27, 2008 5:21 PM To: