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February 24, 2011, 08:48 |
problem in the CFX12.1 parallel computation
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#1 |
Member
Join Date: Sep 2010
Posts: 45
Rep Power: 16 |
I am using the LINUX CFX12.1 parallel computation to modeling an axial compressor flow. The total grid elements is about nine million. Eight computers were used with a HP MPI distributed parallel.
The problem is that the computation stopped at about 40th step, with no error pop out. I am sure the CPU and memory is sufficient for the computation, but why i got the interruption? Another problem is that should I do anything when I manually stopped a MPI parallel computation. I find that, the computation become slow when it is started after a parallel computation stopped. Thanks firstly, BalanceChen |
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March 1, 2011, 08:20 |
Problem has been figured out in the CFX12.1 parallel computation, Thank you~
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#2 |
Member
Join Date: Sep 2010
Posts: 45
Rep Power: 16 |
I choose the partition type to "uniform" and then the problem dissappears~
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July 7, 2011, 11:26 |
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#3 | |
Senior Member
mohammad
Join Date: Dec 2010
Location: UK
Posts: 245
Rep Power: 16 |
Quote:
I have a question to ask. I'm using the same CFX and I want to use a supercomputer with 4nodes*4 ppn= 16 my problem is that when I use serial it solve about 12 iterations per hour. when I use any parallel or Distributed parallel the speed is slowerrrr.. 2 iterations per hour. do you know why? regards. |
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