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Deleting CPDN Data files (windows)

Deleting CPDN Data files (windows)

Questions and Answers : Windows : Deleting CPDN Data files (windows)
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McPuppa

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Message 42098 - Posted: 3 May 2011, 11:08:32 UTC
Last modified: 3 May 2011, 11:08:57 UTC

Hi everybody.

I just discover that the CP project is using about 2.34GB of space on my disk.
I found that a lot of data is stored on disk for future computations, but I cannot occupy all that space for boinc projects, so I found into FAQs a procedure to delete unsused data files (http://www.boinc-wiki.info/Saving_Or_Deleting_CPDN_Result_Data_Files), but it seems that is pretty old, for example directory trees are totally different from the ones of the examples.

So, as I still want to participate to this project, I need a procedure to periodically clean unused data files. Can someone help me?
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Profile Thyme Lawn
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Message 42099 - Posted: 3 May 2011, 11:31:23 UTC
Last modified: 3 May 2011, 11:36:04 UTC

That page is out of date.

Go to your BOINC data directory and look at projects/climateprediction.net

You can safely delete any of the model subdirectories (that's anything starting with famous or had) which isn't shown as a task with progress >0 on the Tasks tab in BOINC Manager's advanced view.

CPDN tasks should clean up after they've completed but some failure conditions can leave the working directory behind.
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McPuppa

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Message 42100 - Posted: 3 May 2011, 11:57:40 UTC - in response to Message 42099.  

Thank you for the suggestion. I already supposed that I could erase those directories without "datain" subdirectory.

Just another thing to reduce the space on the disk.
I read the project downloads one work unit for cpu, I have a dual core cpu so it downloads 2 units and allocates about 1GB for unit. If I hacks the sched_request_climateprediction.net.xml file setting max_cpus to 1 the project work with 1 work unit at time?
And I have to set to 1 all three parameters in that file?
Last question, I have to wait to terminate current 2 jobs before modifying the file?
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Profile Thyme Lawn
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Message 42108 - Posted: 3 May 2011, 21:09:45 UTC - in response to Message 42100.  

Just another thing to reduce the space on the disk.
I read the project downloads one work unit for cpu, I have a dual core cpu so it downloads 2 units and allocates about 1GB for unit. If I hacks the sched_request_climateprediction.net.xml file setting max_cpus to 1 the project work with 1 work unit at time?

That wouldn't work.

The only way to reduce the number of CPUs used is to open your global preferences page and change the second On multiprocessors, use at most setting (% of the processors) to anything between 50% and 99%.

The new restriction will be applied after the next project update (which you can force manually). I'm pretty sure that will cause BOINC to run its benchmark. After that only one of your tasks will be restarted. The other will stay in the "Waiting to run" state.
"The ultimate test of a moral society is the kind of world that it leaves to its children." - Dietrich Bonhoeffer
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old_user494864

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Message 42111 - Posted: 4 May 2011, 11:31:47 UTC

I also have a problem with disk space. I cannot receive new task because task are somehow getting bigger and bigger while my disk is getting full. Is it possible to direct BOINC to use another disk than C: e.g. D: ?
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Les Bayliss
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Message 42113 - Posted: 4 May 2011, 13:30:39 UTC - in response to Message 42111.  

To do this, you need to un-install BOINC, and then re-install it.
On the 3rd screen from the start, in the bottom right corner, there's a button labelled Advanced.
Click this, and you'll get an additional screen with options for changing the locations of the 2 parts of BOINC, plus a couple of other items.

This needs to be done AFTER Exiting from BOINC.


Backups: Here
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Message 42114 - Posted: 4 May 2011, 13:38:55 UTC
Last modified: 4 May 2011, 13:42:49 UTC

Alternatively, assuming you feel comfortable modifying the registry, you can run the registry editor (Start - Run - regedit), go to

HKEY_LOCAL_MACHINE\SOFTWARE\Space Sciences Laboratory, U.C. Berkeley\BOINC Setup

and change the DATADIR value to match the new location (e.g. D:\ProgramData\BOINC).

As with Les' suggestion you need stop BOINC before doing this.
"The ultimate test of a moral society is the kind of world that it leaves to its children." - Dietrich Bonhoeffer
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Questions and Answers : Windows : Deleting CPDN Data files (windows)

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