CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLOW-3D

SMP vs MP version

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 9, 2008, 22:46
Default SMP vs MP version
  #1
CK
Guest
 
Posts: n/a
Hi All, would like to know if anyone is using SMP and MP version of Flow-3D? would like to know which one is better and typically how many CPU core is used for weir flow or turbulent free surface flow?

Rgds CK
  Reply With Quote

Old   October 17, 2008, 11:24
Default Re: SMP vs MP version
  #2
AC
Guest
 
Posts: n/a
what is the typical size of the mesh that you use? For MP bigger the better. For SMP usually a quad core system is used , so 4 processors on one core. For MP you will need a cluster, so basically more than one quad cores say up to 8 nodes. 1 node=1 core. SMP is based on multithreading so basically do loops are split across multiple processors. With MP the domain is decomposed (using multiple mesh blocks). Then each mesh block can be solved on different core. Since with SMP the RAM is shared is by the processors the speed up is limited. With MP the speed up will be more especially for problems where domain can be decomposed in multiple mesh blocks in such a way that each mesh block has some fluid, which i think is the case for hydraulic problems which is what you are interested in.

Really the best way to decide which version is best for your case to go for is to try running some test cases on both versions. You can send email to flow science at support@flow3d.com regarding some trials. Regards, AC

  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
OpenFOAM on cluster: version GLIBCXX_3.4.9 and GLIBCXX_3.4.11 not found ovie OpenFOAM 9 October 15, 2012 01:59
paraview installation woes vex OpenFOAM Installation 15 January 30, 2011 08:11
bubbleFoam validation case balkrishna OpenFOAM Running, Solving & CFD 24 August 30, 2010 04:37
version GLIBCXX_3.4.9 and GLIBCXX_3.4.11 not found ovie Main CFD Forum 1 April 19, 2010 14:00
Problem with paraFoam on a linux-64 bit bunni OpenFOAM Paraview & paraFoam 4 April 14, 2010 20:55


All times are GMT -4. The time now is 20:51.