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Forum: Main CFD Forum

October 14, 2013, 04:19

Replies: 10

determing the cores necessary

Views: 1,368

Posted By RodriguezFatz

Here are my results, Fluent, all run the same...

Here are my results, Fluent, all run the same number of iterations. If I recall correctly, the grid has about 1mio cells.
1 core: 881 sec.
2 cores: 485 sec.
3 cores: 377 sec.
4 cores: 320 sec.
6...

Forum: Main CFD Forum

October 14, 2013, 03:57

Replies: 10

determing the cores necessary

Views: 1,368

Posted By RodriguezFatz

On your normal PC-CPU (at least if you have...

On your normal PC-CPU (at least if you have Intel, such as i7-xxxx), you have just 4 cores, but each of them can handle two threads. Windows / linux shows 8 CPUs (4x2). At least for my cases, they...

Forum: Main CFD Forum

October 14, 2013, 03:42

Replies: 10

determing the cores necessary

Views: 1,368

Posted By RodriguezFatz

1million cells will be much faster on 8 cores...

1million cells will be much faster on 8 cores than on 4 cores. But you need 8 "real" cores, not 4 cores with hyperthreading.

Forum: Main CFD Forum

October 14, 2013, 03:28

Replies: 10

determing the cores necessary

Views: 1,368

Posted By RodriguezFatz

This doesn't make any sense. "Necessary" is a...

This doesn't make any sense. "Necessary" is a single core. If you have more than one, you will be faster. Why would you really need more than one core?

Forum: Main CFD Forum

October 14, 2013, 03:26

Replies: 10

determing the cores necessary

Views: 1,368

Posted By RodriguezFatz

What do you mean by "cores"? CPU cores?

What do you mean by "cores"? CPU cores?

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