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Parallel fluent and slow data reading on more than 24 cores

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Old   February 10, 2015, 08:39
Default Parallel fluent and slow data reading on more than 24 cores
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mahdi
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Dear colleagues
I have run fluent 14.5 on a cluster combine of 8 system with diferent number of cores and different CPU frequency (a 24 core and 3.67Ghz,a 16 core and 2.2, and 6 core 2 Ghz)
when I read data upto 24 core,after case reading data will be read fast and cpu usage is more than 95)
but when I use more than 24 cores( I test 40 and 80) data reading takes a very large time (about a day)than CPU usage fluctuates from 10 to 90.
( I use 1G switch and cat5e cables)
why? and what can I do?
reagards
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