CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

Floating point exception in parallel mode of fluent

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 11, 2011, 14:30
Question Floating point exception in parallel mode of fluent
  #1
Member
 
Aamer Shahzad
Join Date: Mar 2010
Posts: 58
Rep Power: 16
aamer is on a distinguished road
Dear all

i am doing simulation on 3 D wing which is having 6.5 million cells. my OS is windows 7 64 bit with 8 gb RAM and 8 cores (i am using 64 bit version of fluent). when i run the case by using 4 cores of the computer (i.e by starting fluent with command fluent 3d -t4) i get error as "primitive error at node 1, node 2 and node 3: floating point exception" after few iterations. As remedial measure i reduced my under relaxation factor and time step but the problem remained the same......
when i run the same case with single processor, the case is running okie under same settings. In order to save the computational time i have to exploit parallelism, i am trying to resolve this issue...... any body having any idea why this error is coming with parallel mode????
aamer is offline   Reply With Quote

Reply


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
Parallel Fluent Error in Batch Mode Justin FLUENT 3 November 28, 2016 11:50
reactingFoam floating point exception pajofego OpenFOAM 0 November 6, 2010 18:29
Unable to start fluent in parallel mode Anand FLUENT 1 January 11, 2009 17:48
[Gmsh] Gmsh and samplesurface touf OpenFOAM Meshing & Mesh Conversion 2 December 10, 2007 03:27
floating point exception (underflow) Prashant Main CFD Forum 0 December 17, 2004 02:54


All times are GMT -4. The time now is 20:19.