Re: Running NAMD on SGI Altix system

From: Axel Kohlmeyer (
Date: Thu Jul 22 2010 - 16:08:22 CDT

On Thu, Jul 22, 2010 at 4:13 PM, Ronald Salesky <> wrote:
> Hi,
> I have attempted running the NAMD v2.7b3 Linux-Itanium-Altix (SGI Altix)
> binaries on a SGI Altix ICE 8200 system model.

ICE means intel x86_64 processors, _not_ itanium.

> From the command line, "mpirun -np 8 ubq_ws_eq.conf" gives an error message
> "MPI: Could not access local arrayd"

where is the namd binary on the command line?

outside of that, the error message suggests that
you have a problem that needs to be handled by
the system administrators, or you are not following
the usage instructions correctly.

> Any suggestions on what to do? I am only permitted to run binaries or build
> source from my assigned home directory. Additional information on this
> supercomputer:

nothing in NAMD requires superuser access.

> SGI Altix ICE 8200, Xeon quad core 3.0 GHz
> SLES10 + SGI ProPack 5 operating system
> Infiniband DDR interconnect

there you go. xeon processor is not itanium.


> Thank you,
> Ron

Dr. Axel Kohlmeyer
Institute for Computational Molecular Science
Temple University, Philadelphia PA, USA.

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