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Reconstruction problem while using parallel processors |
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September 14, 2014, 17:11 |
Reconstruction problem while using parallel processors
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#1 |
New Member
Fei Gao
Join Date: Aug 2014
Posts: 12
Rep Power: 11 |
Hi, Formers,
I am using parallel processors (64) to compute a case with a 6 million mesh. The computing process is OK, but it takes a lot of time to reconstruct after the computation is done, almost one day. Is this normal? or this indicates something wrong with my case? Is there anybody who has ever met the the same problem with me? Thanks, Best, Cara |
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September 14, 2014, 19:44 |
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#2 |
Member
Chris L
Join Date: Sep 2012
Posts: 53
Rep Power: 13 |
How many time steps it is reconstructing, and is the mesh dynamic or the same for all timesteps?
Edit: I've only reconstructed upto 20 cores, but it seemed to me that the time for reconstructing gets quite long at larger core counts. |
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September 14, 2014, 19:59 |
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#3 |
New Member
Fei Gao
Join Date: Aug 2014
Posts: 12
Rep Power: 11 |
Hi, Chris,
I have less than 100 steps to reconstruct and the case is a transient case. I guess maybe that is the reason for the low speed. And indeed, the reconstuction time increses a lot with the increase of number of processors. Best, Fei |
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September 21, 2014, 13:50 |
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#4 | |
Retired Super Moderator
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
Posts: 10,975
Blog Entries: 45
Rep Power: 128 |
Allow me to repeat myself from this post: http://www.cfd-online.com/Forums/ope...structpar.html
Quote:
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