Re: Problem running NAMD 2.8 with ibverbs

From: Moritz Schlarb (
Date: Wed Jan 11 2012 - 04:20:57 CST

Hello Norman,

thank you for your help!

I've attached the command outputs as textfiles for better readability. I
hope you don't mind that I've tarred it and uploaded it here:

Yes, we're using OFED-1.4 with the following HCAs:
07:00.0 InfiniBand: Mellanox Technologies MT25204 [InfiniHost III Lx
HCA] (rev 20)

As you can see from the lsmod output, IPoIB is installed and working.

By using /etc/hosts, all nodes (and the "login" nodes, too) have names
and addresses for their ethernet cards (eth1 on the internal network
e.g. node102 = and names and addresses for their
infiniband cards (fnode102 =
Pinging works (I can't test it using the ibtools because of insufficient
permissions and my boss isn't around atm, but normal ping works, and
every other MPI application, too).

Are you able to find some error in there?
I would think that it is just a compilation problem, especially since
the precompiled binary works fine... (If there isn't a simple solution I
think I'll have to stick with that either way.)

Thank you for your help!


Am 09.01.2012 07:32, schrieb Norman Geist:
> Hi Moritz,
> I would answer you in german, as I'm here in the University of Greifswald,
> but we should keep the mailing lists international usability.
> Pls send me the output of:
>> ifconfig -a
>> cat /sys/class/net/ib0/mode
>> cat /sys/class/net/ib0/mtu
> What Infiniband hardware do you have (HCA,Switch)?
> How u installed it? (have u used OFED?)
> Have you thought of installing the IPoIB driver?<- needed for resolution of
> ip-addresses to the right infiniband-addresses.
> Have you tried the ib tools like ping etc, did they work??
> Let me know
> Norman Geist.

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