Star-CCM+ 32 in W7 64

mdominguez · July 26, 2010, 18:45

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".

It´s 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

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.

July 26, 2010, 18:45	Star-CCM+ 32 in W7 64	#1
mdominguez New Member Join Date: Jul 2010 Posts: 4 Rep Power: 15	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". It´s correct. Thanks, Marcelo

July 29, 2010, 11:57	Full Capacity	#6
RobertoPravata New Member rpravata Join Date: Jul 2010 Posts: 5 Rep Power: 15	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

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July 26, 2010, 19:20		#2
TomK New Member Tom Keheley Join Date: May 2010 Location: Washington State, USA Posts: 18 Rep Power: 15	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

July 26, 2010, 20:12		#3
mdominguez New Member Join Date: Jul 2010 Posts: 4 Rep Power: 15	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

July 27, 2010, 19:22		#4
TomK New Member Tom Keheley Join Date: May 2010 Location: Washington State, USA Posts: 18 Rep Power: 15	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

July 27, 2010, 20:44		#5
mdominguez New Member Join Date: Jul 2010 Posts: 4 Rep Power: 15	Thanks again, Tom.

July 30, 2010, 07:52		#7
RobertB Senior Member Robert Join Date: Jun 2010 Posts: 117 Rep Power: 16	Why not use 5.04 ? Works fine on my Windows 7 64 laptop.

July 31, 2010, 11:19		#8
Maddin Senior Member Join Date: Mar 2009 Posts: 260 Rep Power: 18	@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.