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Dr. Ronald C. Spencer

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Message 8110 - Posted: 16 Apr 2009, 18:05:00 UTC

Keep getting this message from Cosmology@home

CAMB needs 476.84 MB RAM but only 459.38 is available for use. Is that a Cosmology@home problem or is it from my computer? If it is from my computer is there a way I can remedy the problem? Thanks folks.
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Profile Ananas

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Message 8111 - Posted: 16 Apr 2009, 20:26:43 UTC - in response to Message 8110.  
Last modified: 16 Apr 2009, 20:27:56 UTC

Current Cosmo WUs do need more RAM than usual.
If only a little RAM is missing, you can try to increase the amount BOINC is allowed to use :

Use at most xx% of memory when computer is in use
Use at most xx% of memory when computer is not in use

You can find the setting here in the section "Disk and memory usage"
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Anshul Kanakia
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Message 8115 - Posted: 17 Apr 2009, 2:02:44 UTC

We are experiencing technical issues at the moment so it is not your system. The CAMB (2.15) executable is corrupt and we are trying to find a copy that works so we can replace it in the upload folder. I apologize for the inconvenience. My colleague and I are meeting tomorrow to fix all the issues the project has been having lately so both processor usage and RAM requirements should drop by a whole lot soon.
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Dr. Ronald C. Spencer

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Message 8116 - Posted: 17 Apr 2009, 2:32:04 UTC - in response to Message 8115.  

Thank you so much for the heads up about the problems your having, I thought it was surely my computer. Now I can relax knowing I can help this Project out in the near future again. :)
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Anshul Kanakia
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Message 8163 - Posted: 20 Apr 2009, 17:53:14 UTC
Last modified: 20 Apr 2009, 17:54:17 UTC

Update.
The new CAMB 2.16 Work Units are quite processor/memory hungry. They should not take ~500Mb of memory as Ronald had mentioned earlier but they will take more memory and processing power than the older 2.15 Work units. As a result of this we are discussing about increase of credit for these WUs in the Wish list thread. you are welcome to join in on the discussion and provide your input. Thanks.
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Message 8174 - Posted: 21 Apr 2009, 14:10:42 UTC

I had a few WUs on my Linux host but they all got the dreaded "signal 11" error message, two of them even after 4 hours of crunching. *sniff* :-(

Do I have to change something on my end or is it a known problem?

This is the host in question, btw: http://www.cosmologyathome.org/results.php?hostid=31443


Lovely greetings, Cori

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Message 8175 - Posted: 21 Apr 2009, 14:38:29 UTC - in response to Message 8174.  

You have loaded the 32bit compatibility libraries?

Else, do check this FAQ on that problem. It never hurts to check.
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Message 8176 - Posted: 21 Apr 2009, 14:46:02 UTC - in response to Message 8175.  

You have loaded the 32bit compatibility libraries?

Else, do check this FAQ on that problem. It never hurts to check.

Thanks Jord!
I checked but Synaptic says I even have the latest version of ia32 libs installed.
Now what to do? *Scratches head*
Lovely greetings, Cori

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Profile Jord
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Message 8177 - Posted: 21 Apr 2009, 14:56:27 UTC - in response to Message 8176.  

Check the other options in that FAQ. It may be a problem with your memory or swap file, especially if the computers those tasks are sent to now can finish those tasks without a problem (thereby scratching bad batch of tasks off the list).

Of course, it can still be a problem with the Camb binary, I am keeping that open as an option.
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Message 8178 - Posted: 21 Apr 2009, 15:25:19 UTC - in response to Message 8177.  

Check the other options in that FAQ. It may be a problem with your memory or swap file, especially if the computers those tasks are sent to now can finish those tasks without a problem (thereby scratching bad batch of tasks off the list)...


I don't know how to check my memory or swap file, I don't even know where the swap file is located under Linux.
I followed the Memtest link but when choosing what to download there I am at a loss, too.
I bet I should stop crunching with Linux... it's fine when having no problems but I hate trobleshooting under Linux. ;-(
Lovely greetings, Cori

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Profile Jord
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Message 8180 - Posted: 21 Apr 2009, 19:35:59 UTC - in response to Message 8178.  
Last modified: 21 Apr 2009, 19:36:38 UTC

I don't know how to check my memory or swap file, I don't even know where the swap file is located under Linux.

Which Linux distro do you run?

I followed the Memtest link but when choosing what to download there I am at a loss, too.

From what I've seen, most of the distros have the option to run Memtest from either Grub, or from a Live CD's first menu. It must be run from outside the operating system at all times.

I bet I should stop crunching with Linux... it's fine when having no problems but I hate trobleshooting under Linux. ;-(

I am not going to tell you to stop running Linux. If that's what you wanted to read. :-)
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Message 8182 - Posted: 21 Apr 2009, 20:17:37 UTC - in response to Message 8180.  

I am using Xubuntu 8.10 (Intrepid) 64-bit.
And I admit I'm afraid of Grub. *smiles*

PS. I think I won't stop crunching under Linux but maybe I have to stops Cosmo for a while.
And if I'm tired of Linux I can always boot into Vista 32-bit again - but in fact Vista is not my favorite either, that's why I installed Linux. *LOL*

PS2: I had another look at the Memtest link: if I download an *.iso file I'll have to burn it on a CD or DVD and boot from that, right?
When I feel brave enough I might still give it a try.
Lovely greetings, Cori

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Profile [AF>France>TDM>Centre]Jeannot Le Tazon
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Message 8200 - Posted: 22 Apr 2009, 17:20:39 UTC - in response to Message 8163.  
Last modified: 22 Apr 2009, 17:59:20 UTC

Update.
The new CAMB 2.16 Work Units are quite processor/memory hungry. They should not take ~500Mb of memory as Ronald had mentioned earlier but they will take more memory and processing power than the older 2.15 Work units.


Hi,
One of my CAMB 2.16 WU is taking ~650Mb , an other one only ~350Mb . (and 8 waiting to be crunched...)
(12h00 85% done for one of them, 6h50 65% done for the other)
See
This one
or this one
waiting to be sent back.

Keep on crunchin' !
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Profile [AF>France>TDM>Centre]Jeannot Le Tazon
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Message 8203 - Posted: 22 Apr 2009, 21:25:01 UTC - in response to Message 8200.  
Last modified: 22 Apr 2009, 21:25:17 UTC

One of my CAMB 2.16 WU is taking ~650Mb , an other one only ~350Mb ...

Now the 2nd one is taking 630 Mb.
15h45 : 92,5%
10h00 : 81%
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