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

Load balancing pre- and during computation

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 29, 2009, 06:17
Default Load balancing pre- and during computation
  #1
Senior Member
 
Anonymous
Join Date: Mar 2009
Posts: 110
Rep Power: 8
madad2005 is on a distinguished road
Hi,

I'm currently using decomposePar to decompose the mesh into n portions for running in parallel. The actual mesh partitioning itself appears very efficient and there is almost an equal number of cells on every node. However, when I'm actually running the solver (in this case, it is just potentialFoam), it appears to overload the memory distribution on the first processor, then the second, then the third, and fourth, each time removing memory allocated to other processors... is there a reason for this, or have I missed out a step?
madad2005 is offline   Reply With Quote

Old   October 29, 2009, 06:23
Default
  #2
Senior Member
 
Anonymous
Join Date: Mar 2009
Posts: 110
Rep Power: 8
madad2005 is on a distinguished road
Also, what are the memory it requires per million cells in double precision, and does this scale linearly with cell count?
madad2005 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



All times are GMT -4. The time now is 19:31.