CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   STAR-CCM+ (http://www.cfd-online.com/Forums/star-ccm/)
-   -   Star-CCM+ 32 in W7 64 (http://www.cfd-online.com/Forums/star-ccm/78582-star-ccm-32-w7-64-a.html)

mdominguez July 26, 2010 18:45

Star-CCM+ 32 in W7 64
 
Can you help with this question.

If run the 32bit CCM+ in W7/64 I can use a big swap file than the 4 GB limit for 32 bit O.S., this help me with message "Insufficient virtual memory".

Itīs correct.

Thanks, Marcelo

TomK July 26, 2010 19:20

Will not help. The error message you are getting says that all physical memory is being used and more virtual memory is necessary. Only two solutions for this - add more physical memory or increase virtual memory (swap space). Be aware that while adding swap space may work, it will slow the analysis down significantly, because now you have I/O to contend with. Your quick option is to decrease the cell size.

Tom

mdominguez July 26, 2010 20:12

Thanks Tom.

New question. If have 12GB RAM in W7/64.
Is possible run CCM+(32b) in W7/64 using all the memory ?

Best regards, Marcelo

TomK July 27, 2010 19:22

I don't think so. 32 bit systems are set up to use only 4 gig memory (XP will only address 3.5 gig). Since you are running a 64 bit version of WINDOWS 7, why not use the 64 bit version of CCM+? It is available from CD-adapco's download site. I have 64 bit WINDOWS 7 and the 64 bit CCM loaded on my laptop. It has 8 gig memory. I just completed a job with 6.1 million cells with no problem. It is easy to install.

TomK

mdominguez July 27, 2010 20:44

Thanks again, Tom.

RobertoPravata July 29, 2010 11:57

Full Capacity
 
Hello everyone,

I have a problem with my Star CCM + 64 bits

It only uses 6% of full capacity. How I can fix it?

I have version 4.4.1911

RobertB July 30, 2010 07:52

Why not use 5.04 ? Works fine on my Windows 7 64 laptop.

Maddin July 31, 2010 11:19

@Roberto: Too small Swap file? Then limits windows the virtual space...

32 Bit can only handle 2GB per thread - run parallel to use more. Mesh per region, split the regions etc.


All times are GMT -4. The time now is 00:33.