Batch plan

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Profile Eric Driver
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Message 2568 - Posted: 9 Oct 2019, 0:33:36 UTC

I know some of you like to know the batch plan, so here it is...

Batch 13x270 is nearing completion for subfield 3. After that, we will spend a week or two picking some of the low hanging fruit on subfield 7. Then it's back to subfield 3, batch 13x271. This is a very big batch, so I expect it to last until the end of December, possibly into January.
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Mark1692

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Message 2569 - Posted: 9 Oct 2019, 21:26:41 UTC - in response to Message 2568.  

seti@home graphics are not working....what am i doing wrong?
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Richard Haselgrove

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Message 2570 - Posted: 9 Oct 2019, 22:20:59 UTC - in response to Message 2569.  

seti@home graphics are not working....what am i doing wrong?
Posting in the wrong forum.

Try https://setiathome.berkeley.edu/forum_help_desk.php - but next time, please give details of your operating system, BOINC version, and what you did prior to the change in behaviour.
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Message 2571 - Posted: 10 Oct 2019, 8:51:19 UTC - in response to Message 2570.  

Are DS13x271 tasks short (similar to DS13x270)?
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Profile Eric Driver
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Message 2572 - Posted: 10 Oct 2019, 15:48:35 UTC - in response to Message 2571.  

Are DS13x271 tasks short (similar to DS13x270)?


No, they will be about twice as long. DS13x270 took about 10 days, so DS13x271 should take about 85 days, assuming FLOPS stay the same.
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Richard Haselgrove

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Message 2573 - Posted: 10 Oct 2019, 17:38:50 UTC - in response to Message 2572.  

Which raises the problem of the transition back to long tasks after our machines have adapted to the short runs from subfield 7. You may get a blip of runtime exceeded errors again, followed by another blip when the first resends try to run in half the time. Might be wise to cut down the 'maximum tasks in progress' for a while when the first long tasks are ready to flow out.
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Profile Eric Driver
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Message 2574 - Posted: 10 Oct 2019, 19:43:00 UTC - in response to Message 2573.  

Which raises the problem of the transition back to long tasks after our machines have adapted to the short runs from subfield 7. You may get a blip of runtime exceeded errors again, followed by another blip when the first resends try to run in half the time. Might be wise to cut down the 'maximum tasks in progress' for a while when the first long tasks are ready to flow out.


Ok. I reduced the "max_wus_in_progress" parameter just to be safe. But just to clarify, the sf7 tasks will average about .7 hours and the future 13x271 tasks average about 1 hour, so they are actually pretty close in time. For comparison the 13x270 which recently completed (just waiting on a few stragglers to trickle in) averaged .5 hours. All these times are from the same 3.6 GHz computer, running single threaded. If you run hyper-threaded, you can double the times for a better runtime estimate.
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Profile Eric Driver
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Message 2613 - Posted: 1 Jan 2020, 22:41:38 UTC - in response to Message 2568.  

As predicted, sf3 DS13x271 would take until the end of December. There are about 30k WUs still outstanding, which should take about 2 weeks to trickle in. In the meantime, the search has progressed to DS14x270. The current plan is to stay on subfield 3 for the next several months and knock out DS14 and DS15.
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Message 2616 - Posted: 3 Jan 2020, 20:46:04 UTC - in response to Message 2613.  

Appreciate the update. I am assuming going off past experience DS15×271 will take about the same amount of time as DS13×271 if not longer simply because it has the same number of work units in the batch?
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Profile Eric Driver
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Message 2617 - Posted: 4 Jan 2020, 3:24:01 UTC - in response to Message 2616.  

Appreciate the update. I am assuming going off past experience DS15×271 will take about the same amount of time as DS13×271 if not longer simply because it has the same number of work units in the batch?


Compared to DS13x271, the total time for DS14x271 should be about 10% longer and DS15x271 should be about 40% longer. Even though DS15x271 has the same number of WUs, the average time per WU will go up about 40%.
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Message 2618 - Posted: 4 Jan 2020, 7:39:23 UTC - in response to Message 2617.  

Appreciate the update. I am assuming going off past experience DS15×271 will take about the same amount of time as DS13×271 if not longer simply because it has the same number of work units in the batch?


Compared to DS13x271, the total time for DS14x271 should be about 10% longer and DS15x271 should be about 40% longer. Even though DS15x271 has the same number of WUs, the average time per WU will go up about 40%.

Thank you for this information. When we hit these longer ones I will be using my GPU only
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