How many Seti@home tasks are there?


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Questions and Answers : Windows : How many Seti@home tasks are there?

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Profile Dan T
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Message 1216619 - Posted: 10 Apr 2012, 21:49:19 UTC
Last modified: 10 Apr 2012, 21:50:57 UTC

I'm starting to think maybe the reason my Seti@home project on my main computer is getting the following is due to it completing the majority of the tasks that are available?

Number of tasks completed 3722


Computer Tasks -> http://setiathome.berkeley.edu/host_app_versions.php?hostid=6212562
Computer Details -> http://setiathome.berkeley.edu/show_host_detail.php?hostid=6212562

I used to get 10 days worth of tasks but now (last few weeks) it struggles to get a days worth.

10/04/2012 22:35:20 | SETI@home | Reporting 3 completed tasks, requesting new tasks for CPU and NVIDIA
10/04/2012 22:40:32 | SETI@home | Scheduler request failed: Timeout was reached
10/04/2012 22:40:35 | | Project communication failed: attempting access to reference site
10/04/2012 22:40:37 | | Internet access OK - project servers may be temporarily down.




Has this computer completed too much work? How many tasks exist in total?

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Message 1216622 - Posted: 10 Apr 2012, 22:04:52 UTC - in response to Message 1216619.

ATM, there are close to 200,000 tasks available to users. That changes by the minute, but has been fairly constant over the last few weeks.

You're getting the timeouts due to high load on the servers coming out of regular Tuesday maintenance.

There is no such thing anymore as a 10 day cache, unless you run Astropulse exclusively. Limits in place mean that you can have a maximum of 800 tasks at a time, i.e., 50 per CPU core, and 400 per GPU. With most of the Fermi class GPU's, 400 WU's are less than a day's worth.
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Message 1217092 - Posted: 12 Apr 2012, 1:19:24 UTC
Last modified: 12 Apr 2012, 1:27:42 UTC

Okay that makes sense!

Boinc just seems to struggle to regularly fetch SETI@home Enhanced 6.03 windows_intelx86 tasks at the moment and wondering what the issue is and if it's my setup/preferences or something else?

Boinc fetches lots of SETI@home Enhanced 6.10 windows_intelx86 (cuda_fermi) for the GPU and I have pages of them waiting to run!

This leaves my i7 machine running 2x Astropulse v6 6.01 on 2 of 8 available cores with a cuda_firma also running on the GPU:



This leaves 5/6 cores doing nothing for Boinc!

Is it somehow possible to tell Boinc to use more than 1 core per task if there's cores doing nothing?

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Message 1217105 - Posted: 12 Apr 2012, 2:06:57 UTC - in response to Message 1217092.

Okay that makes sense!

Boinc just seems to struggle to regularly fetch SETI@home Enhanced 6.03 windows_intelx86 tasks at the moment and wondering what the issue is and if it's my setup/preferences or something else?

Boinc fetches lots of SETI@home Enhanced 6.10 windows_intelx86 (cuda_fermi) for the GPU and I have pages of them waiting to run!

This leaves my i7 machine running 2x Astropulse v6 6.01 on 2 of 8 available cores with a cuda_firma also running on the GPU:



This leaves 5/6 cores doing nothing for Boinc!

Is it somehow possible to tell Boinc to use more than 1 core per task if there's cores doing nothing?

That would involve a re-write of the SETI applications to be multi threaded. There are other projects you can add to your BOINC installs. Adding a handful of projects that usually have work will allow your computer to be doing something for some project all the time. I have not actually run out of work since the third BOINC project came on line. There were a few times early on where there was only one of the three that had work available at any time. Now with > 50 projects, anyone should be able to find 5 or 6 that suit them.
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Message 1217542 - Posted: 13 Apr 2012, 4:46:40 UTC

So this is normal?

13/04/2012 05:44:00 | SETI@home | No tasks are available for Astropulse v505
13/04/2012 05:44:00 | SETI@home | No tasks are available for SETI@home v7
13/04/2012 05:44:00 | SETI@home | No tasks are available for AstroPulse v6

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Message 1217549 - Posted: 13 Apr 2012, 5:12:23 UTC - in response to Message 1217542.

Yup, you will at this time just have had it that the feeder was empty. The feeder holds 100 tasks to send out at maximum, evenly spread over the available applications (50 Multibeam Seti_Enhanced / 50 Astropulse) if your BOINC asks for work just at the moment that the feeder sent out the last of these 100 to another computer, and before it has renewed its cache, then you get the answer that there's no work for the applications you chose.

13/04/2012 05:44:00 | SETI@home | No tasks are available for Astropulse v505

This version of Astropulse is being phased out. As of writing this reply, 1,142 remaining out in the field.
13/04/2012 05:44:00 | SETI@home | No tasks are available for SETI@home v7

This version of Seti_Enhanced is being phased in, although there's no real v7 apps yet, for any platform. Give it another 14 days in the least.
13/04/2012 05:44:00 | SETI@home | No tasks are available for AstroPulse v6

This versions of Astropulse is being phased in, to replace version 5.00 (already deprecated), version 5.01 (already deprecated) and the above version 5.05.
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Questions and Answers : Windows : How many Seti@home tasks are there?

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