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

Parallel processing results using FLUENT

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 31, 2012, 17:31
Question Parallel processing results using FLUENT
  #1
New Member
 
Alex Hai
Join Date: Mar 2010
Posts: 26
Rep Power: 6
haihek is on a distinguished road
Hi,

Can anyone explain to me why i get somehow little different simulation results when i use single processor instead of parallel?

Any explanation will be helpful, and if you have references for that, that will be great!

Thank you.
haihek is offline   Reply With Quote

Old   August 1, 2012, 15:43
Default
  #2
Member
 
Mosi Owa
Join Date: Nov 2011
Posts: 35
Rep Power: 4
BMCombustor is on a distinguished road
Quote:
Originally Posted by haihek View Post
Hi,

Can anyone explain to me why i get somehow little different simulation results when i use single processor instead of parallel?

Any explanation will be helpful, and if you have references for that, that will be great!

Thank you.
How many licenses are you using? If you have only one valid license and run your case on parallel, it won't make any difference.
BMCombustor is offline   Reply With Quote

Old   August 2, 2012, 02:10
Default
  #3
Senior Member
 
Bionico's Avatar
 
Flavio
Join Date: Sep 2011
Location: Brescia, Italy
Posts: 162
Rep Power: 4
Bionico is on a distinguished road
Hi,
I think it's quite usual finding this difference: moreover, if you try the same simulation on the same workstation you'll have different results...of course the differences should be very very small
The computer schedules its processors and their conditions are different every time
__________________
Bionico
Bionico is offline   Reply With Quote

Old   August 5, 2012, 07:55
Talking
  #4
New Member
 
amir okhovat
Join Date: Sep 2011
Location: Iran- Isfahan
Posts: 18
Rep Power: 4
amirokhovat is on a distinguished road
your license is not valid
I had this problem my calculation with 6 core was true but with 4 was false and with single was true.
you can change the number of cpu core and look which will true.
amirokhovat is offline   Reply With Quote

Reply

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
Parallel processing with FLUENT 13 and 14 msth FLUENT 2 July 12, 2012 14:52
How to set up PARALLEL processing in FLUENT 14? Rashad FLUENT 0 July 11, 2012 06:44
fluent parallel processing problem pedram.sotudeh FLUENT 0 June 19, 2012 01:32
Grid Check Fails in Parallel Processing Mode askance Main CFD Forum 0 October 20, 2010 10:11
Parallel Processing by FLUENT? M Kermani Main CFD Forum 2 February 21, 2001 10:01


All times are GMT -4. The time now is 10:04.