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Parallel processing results using FLUENT

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Old   July 31, 2012, 18:31
Question Parallel processing results using FLUENT
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Alex Hai
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Hi,

Can anyone explain to me why i get somehow little different simulation results when i use single processor instead of parallel?

Any explanation will be helpful, and if you have references for that, that will be great!

Thank you.
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Old   August 1, 2012, 16:43
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Mosi Owa
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Quote:
Originally Posted by haihek View Post
Hi,

Can anyone explain to me why i get somehow little different simulation results when i use single processor instead of parallel?

Any explanation will be helpful, and if you have references for that, that will be great!

Thank you.
How many licenses are you using? If you have only one valid license and run your case on parallel, it won't make any difference.
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Old   August 2, 2012, 03:10
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Hi,
I think it's quite usual finding this difference: moreover, if you try the same simulation on the same workstation you'll have different results...of course the differences should be very very small
The computer schedules its processors and their conditions are different every time
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Old   August 5, 2012, 08:55
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your license is not valid
I had this problem my calculation with 6 core was true but with 4 was false and with single was true.
you can change the number of cpu core and look which will true.
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