CFD Online Logo CFD Online URL
Home > Forums > CFX

cfx-solver local parallel causes linear solver error

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

LinkBack Thread Tools Display Modes
Old   May 31, 2013, 02:50
Default cfx-solver local parallel causes linear solver error
New Member
Join Date: Sep 2012
Posts: 8
Rep Power: 7
m4D is on a distinguished road

I'm modelling a turbomachine passage (includes rotor and stator) in cfx. The mesh is generated in turbogrid, and it's ok/OK there. The problem is set up in cfx-pre with the use of Turbo-mode and pretty standard. When i solve the problem using serial mode, it runs ok and converges. When i set up local parallel, it fails on the 1st iteration with finmes linear solver error. What's the problem? Does the partitioner messses smth up?
m4D is offline   Reply With Quote

Old   May 31, 2013, 06:14
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 14,194
Rep Power: 109
ghorrocks is a jewel in the roughghorrocks is a jewel in the roughghorrocks is a jewel in the roughghorrocks is a jewel in the rough
It is rare for a simulation which runs serial to fail parallel. But you seem to have found one. Sometimes you can make it run by defining a different partitioning algorithm and making sure partition boundaries do not lie on critical parts of the flow like free surfaces or shock waves.
ghorrocks is offline   Reply With Quote


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
[swak4Foam] installing funkySetFields igo OpenFOAM Community Contributions 1 November 20, 2012 21:16
How to install CGNS under windows xp? lzgwhy Main CFD Forum 1 January 11, 2011 19:44
Installation OF1.5-dev ttdtud OpenFOAM Installation 46 May 5, 2009 02:32
Compiling problems with hello worldC fw407 OpenFOAM Installation 21 January 6, 2008 18:38
user defined function cfduser CFX 0 April 29, 2006 10:58

All times are GMT -4. The time now is 00:17.