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Subject: Re: [OMPI users] Query related to OMPI_MCA_ns_nds_vpid environment variable
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2008-06-23 07:53:00

On Jun 23, 2008, at 7:44 AM, Aditya Vasal wrote:

> I am working on a cluster and want to run 12 processes for standard
> Linpack test to measure its performance.
> I have made appropriate changes to HPL.dat input file.
> However, I need to set OMPI_MCA_ns_nds_vpid and RANK environment
> variables for execution.

The OMPI_MCA_ns_nds_vpid variable is "internal" -- you shouldn't need
to set it yourself.

I don't know what RANK is -- is that something in your script setup?
AFAIK, HPL doesn't require an additional RANK environment variable.

Jeff Squyres
Cisco Systems