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Another Quad-core q6600 64bit

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Old   January 10, 2008, 16:52
Default Another Quad-core q6600 64bit
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giogio
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Hi i have fluent 6.3.26 32 bit and the 64 bit version. When i run fluent in parallel the simulation is faster but 32 bit version is faster than 64 bit (in each case there are 4 processors working). Why this strange behaviour.

Thanks
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Old   January 10, 2008, 18:00
Default Re: Another Quad-core q6600 64bit
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Meng
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is ur os 64 bit?
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Old   January 11, 2008, 13:20
Default Re: Another Quad-core q6600 64bit
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giogio
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i have windows vista 64 bit
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Old   January 14, 2008, 18:33
Default Re: Another Quad-core q6600 64bit
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red lemon
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64 bit requires about 20% more memory than 32bit. It wont run any faster 64bit (unless it prevents swapping), just is able to access more ram for more complex models or bigger meshes.
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Old   April 18, 2011, 02:21
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raymond
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Quote:
Originally Posted by giogio
;147737
Hi i have fluent 6.3.26 32 bit and the 64 bit version. When i run fluent in parallel the simulation is faster but 32 bit version is faster than 64 bit (in each case there are 4 processors working). Why this strange behaviour.

Thanks
Dear giogio,

What version of 64 bit window are you using? Window 7 professional or any else? I am working on window 7 professional 64 bit operating system. During the installation of 6.3.26 (64 bit), message appears as below:

This installation does not support window operating system.......(seem like do have compatibility issue)

Note: This message does not appear for 32 bit installation on window 7 professional 32 bit operating system.

Did you face the same problem as mine before? How you solve it?
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