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Thread 'Moving models between machines'

Questions and Answers : Macintosh : Moving models between machines
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old_user17401

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Message 36154 - Posted: 16 Feb 2009, 13:49:23 UTC

Hi

I\'ve one machine which is crunching 24/7 and will finish two models in about two days time. I have another machine is which being used maybe 1 hour per day, and at the present rate will take 18 months to finish some of the work.

Once the 1st machine is done, can I transfer the models to the other machine? Both Core 2 Duo, both OS X 10.5.6 . The \"slow\" machine is on BOINC 5, the faster one BOINC 6, so I can upgrade to BOINC before any transfer. I assume the BOINC data directory does not contain information on the host, so I\'m not sure how it works when tasks jump between hosts. Maybe I can\'t do this.

I have upped the shared memory for BOINC 6 compatibility.

Many thanks in advance,

e
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ProfileIain Inglis

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Message 36156 - Posted: 17 Feb 2009, 10:37:09 UTC
Last modified: 17 Feb 2009, 10:40:20 UTC

In principle that\'s a good plan if you\'re going to retire the low-use machine: otherwise I would just let them chug away - the project is grateful for any complete model, even if they take a long time.

So, upgrade the low-use machine to the same version of BOINC as the high-use machine, then copy the data folder across. In practice there may some unintended consequences: BOINC may realise there has been a switch and mark the model as \"client detached\" on the work unit page (I\'ve never quite figured out all the circumstances in which it does this) - which is just a presentational thing: the model will carry on running and credits will still be allocated. The graphs might stop updating as well. BOINC will also spot the host change and generate a new host on the Web site.

Once the transferred models have completed the installation will behave normally.

I don\'t know whether there are any specific Mac issues - sorry.
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old_user17401

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Message 36157 - Posted: 17 Feb 2009, 12:07:13 UTC - in response to Message 36156.  

Hi, thanks for the info.

I think I\'ll hold off the move right now. You\'re right, the more CPUs the merrier. That and it\'d involve moving ~ 1.5GB of data between two countries!

Cheers,

e
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Questions and Answers : Macintosh : Moving models between machines

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