Re: [ptp-user] Dual processor machine, only one node recognized

[Beth Tibbitts <tibbitts@xxxxxxxxxx>]

Similar info is in the 3.0 release notes here:
http://wiki.eclipse.org/PTP/release_notes/3.0#Troubleshooting


...Beth

Beth Tibbitts
Eclipse Parallel Tools Platform http://eclipse.org/ptp
IBM STG Communications Protocols and Tools
Mailing Address: IBM Corp., Coldstream Research Campus, 745 West New Circle Road, Lexington, KY 40511

Greg Watson ---03/10/2010 12:47:35 PM---You also need to add the line: orte_default_hostfile = <ompi_install_dir>/etc/openmpi-default-hostfi

From:	Greg Watson <g.watson@xxxxxxxxxxxx>
To:	PTP User list <ptp-user@xxxxxxxxxxx>
Date:	03/10/2010 12:47 PM
Subject:	Re: [ptp-user] Dual processor machine, only one node recognized
Sent by:	ptp-user-bounces@xxxxxxxxxxx

---

You also need to add the line:

orte_default_hostfile = <ompi_install_dir>/etc/openmpi-default-hostfile

to the end of  <ompi_install_dir>/etc/openmpi-mca-params.conf

Regards,
Greg

On Mar 10, 2010, at 11:01 AM, Mario Ogrizek wrote:

Hi,

ive searched for an answer here, and couldnt find it.

I own a macbook pro, which has a core 2 duo processors, that means i can have 1 machine with 2 nodes, right?

Ive set it all up, like it says in the manual, but resource manager registers a localhost machine with only one node.
ive read i need to edit the openmpi_default_hostfile... i did try it, but what ever i type, number of nodes doesnt change.

i tried: localhost nodes=2
i tried something like this (in PTP FAQ):
"Simulating multiple nodes with OpenMPI: If you are testing on a single node, edit <openmpi_install>/etc/openmpi-default-hostfile (default is /usr/local/etc/openmpi-default-hostfile) and add lines containing 'node0', 'node1', etc. Edit /etc/hosts and add a localhost entry for each name you added to the openmpi-default-hostfile. So, for 'node0', add '127.0.0.1 node0' to /etc/hosts. This will simulate a multi-node machine."

nothing could recognize the second node.


thank you for your time
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