CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Setting process affinity: failed opening libc!

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   May 19, 2014, 10:36
Default Setting process affinity: failed opening libc!
Senior Member
Join Date: Mar 2010
Location: Cape Town, SA
Posts: 156
Rep Power: 10
Jonathan is on a distinguished road
Dear all,

i hope you are well! I am running ANSYS v15.0 on Ubuntu 12.04LTS (which i know is an 'uncertified distro') and receive the following message when i load a parallel case into Fluent:

Setting process affinity: failed opening libc!
I know that this is obviously an error with Fluent not being able to call the appropriate function in the C-standard library to set the process affinity for the job, but i know libc is installed on the machine, so i was wondering whether anyone else had had an issue like this? I havent been able to find much (anything ) on the forums apart from someone else who had the same issue and asked but got no response!

I also run ANSYS v15.0 on another Ubuntu machine without this issue, so i am a little stumped.

Any help would be much appreciated, as i think not have process affinity adversely affects my simulations who badly, since the threads jump around a lot!

thanks and best regards
Jonathan is offline   Reply With Quote

Old   July 7, 2014, 17:35
New Member
Join Date: Jan 2011
Posts: 10
Rep Power: 8
ginggs is on a distinguished road
Fixed by adding symlink to
Originally Posted by ginggs View Post
We've done something similar for Ubuntu 12.04 64-bit, except we placed the symlink in /lib64:
sudo ln -s /lib/x86_64-linux-gnu/ /lib64/
ginggs is offline   Reply With Quote


fluent, libc, parallel, process affinity, ubuntu

Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Foam::error::printStack(Foam::Ostream&) with simpleFoam -parallel U.Golling OpenFOAM 34 May 24, 2016 12:30
How to setup a simple OpenFOAM cluster? TommiPLaiho OpenFOAM Installation 3 October 27, 2013 16:15
Setting Opening Boundary to Move Normal to Itself NCle CFX 10 April 20, 2012 07:54
DeardorffDiffStress turbulence model Zuixy OpenFOAM Running, Solving & CFD 0 November 14, 2011 09:44
Cyclic BC with parallel running rdrr84 OpenFOAM Running, Solving & CFD 2 September 30, 2011 05:43

All times are GMT -4. The time now is 10:45.