CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Hardware

Building little Ubuntu cluster

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 21, 2013, 08:10
Default Building little Ubuntu cluster
  #1
Member
 
Roberto Pieri
Join Date: Feb 2012
Location: Milan
Posts: 57
Rep Power: 14
robyTKD is on a distinguished road
Hello Foamers!!

I have some old PCs and I would like to give them a new life in order to perform numerical simulation with OpenFOAM !!

My idea is to build a little cluster where all PCs are connected and share the OS (Debian or Ubuntu) from the master node (Single-System Image strategy). I would like to avoid installing the os on every node, it is a waste of time and energy...

I found different ways to proceed on the internet and I think that this is possible using kerrighen, but the software is updated to an old Linux kernel version. Moreover I was not able to install some required packages posted in this guide:

http://www.stevekelly.eu/cluster.shtml

Do you have any suggestion to reach my goal?

Roberto
robyTKD is offline   Reply With Quote

Old   October 23, 2013, 07:33
Default
  #2
New Member
 
John McEntee
Join Date: Jun 2013
Posts: 8
Rep Power: 13
jmcentee is on a distinguished road
I do what you want for our cluster at work. This did involve a kernel recompile, can't remember what exactly, as I didn't set it up. but basically. you want.

A server for DHCP, TFTP and NFS. Which also has aufs installed. This server uses aufs to "merge" the golden nfs_root directory with another dirrecotry that has the list of changes, and then shares out the resultant dirrectoy via nfs.

The clients network boot and get the location of the of their nfs root from the dhcp server (plus the kernal images etc.) tftp download the kernel and mount their own nfs-root from the server.

If you have never done standard dhcp,tftp and nfs root before I would start slowly and get it working in the following

1) Get dhcp and tftp working to get a remote linux install running from a network boot.
2) Get a nfs-root setup so a remote computer boot into a running linux mounting the root filesystem from nfs.
3) try and figure out aufs. ( think we had to patch the kernel to get aufs working but it may be int he mainline now)

John
jmcentee is offline   Reply With Quote

Old   November 15, 2013, 10:05
Default
  #3
Senior Member
 
sail's Avatar
 
Vieri Abolaffio
Join Date: Jul 2010
Location: Always on the move.
Posts: 308
Rep Power: 17
sail is on a distinguished road
Ciao Roberto.

what i did was to use rocks cluster (an open source cluster management solution based on centos) as the OS of my small openfoam cluster.

he has SGE or torque as a scheduler, and others nice utilities that will make your life easy.

best regards

Sail.
__________________
http://www.leadingedge.it/
Naval architecture and CFD consultancy
sail is offline   Reply With Quote

Reply

Tags
cluster, kerrighed, openfoam


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[foam-extend.org] Error compiling OpenFOAM-1.6-ext Canesin OpenFOAM Installation 137 January 20, 2016 15:56
OpenFOAM on cluster (ubuntu 12.04 LTS x64) novakm OpenFOAM 5 October 19, 2013 07:38
Building 1.6-dev on Ubuntu 10.10 (64bit) andrewryan OpenFOAM Installation 5 July 2, 2013 16:27
Problem Building OF on Centos cluster (no admin rights) CKH OpenFOAM Installation 5 November 13, 2011 07:32
Compilation error OF1.5-dev on Suse10.3 darenyang OpenFOAM Installation 0 April 29, 2009 05:55


All times are GMT -4. The time now is 02:35.