Extra Credit for GetDecics

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Profile Eric Driver
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Message 455 - Posted: 9 Mar 2012, 5:25:00 UTC

In case you hadn't noticed, the latest batch of GetDecic WUs have much longer run times than usual (2 days on a fast host). Because of this, some users turned off this app in their preferences, in favor of the much faster GetBoundedDecics.

In the short term, we are more interested in the GetDecics results. So as an extra incentive to get users to run the GetDecics app, we are granting 50% more credits to all successful GetDecics results. This will be for a short time, until the current batch (14x121) is complete. For those who don't know how to select the app, goto your account and click "NumberFields@home preferences"; the rest should be easy.
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zombie67 [MM]
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Message 459 - Posted: 9 Mar 2012, 17:33:56 UTC

I can't get any GetDecic tasks. Are there any available?
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Profile Eric Driver
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Message 461 - Posted: 9 Mar 2012, 17:49:59 UTC - in response to Message 459.  

There should be plenty available. Let me try adjusting the weights again.
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Profile Eric Driver
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Message 466 - Posted: 9 Mar 2012, 19:18:08 UTC - in response to Message 461.  

Just curious, is anyone else having problems downloading WUs?

My hosts are fine, so I can't tell if there's a problem.
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Richard Haselgrove

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Message 467 - Posted: 9 Mar 2012, 19:28:04 UTC - in response to Message 466.  

Just curious, is anyone else having problems downloading WUs?

My hosts are fine, so I can't tell if there's a problem.

My most recent were 11:15 UTC today - they downloaded fine.

I haven't asked for any more since then, now that I (and my machines) know how long DS-14x121 are likely to take... ;-)
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Message 468 - Posted: 9 Mar 2012, 22:14:06 UTC
Last modified: 9 Mar 2012, 22:23:14 UTC

Hi
Got a few GDF wu`s her to :)

But if they will finish i within deadline set , is at the time hard to tell.(got 8wus this morning,with a deadline set to 16 mars.4core Box)

Will they get paid if the go over the time limit,or get canceled by server.
How does it work on this project , concerning these issues ??

morgan

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GDF wu`s downloaded within regular crunching, no problem ! ;)
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Profile Eric Driver
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Message 469 - Posted: 9 Mar 2012, 23:24:46 UTC - in response to Message 468.  

Good question! So as you've seen, the deadline is 7 days. What the client doesn't tell you is that the "grace period" is an additional 7 days. That means you have 7 more days after the deadline in which to return the result and still get credit for it.

Just to be safe, I would suggest aborting any task that has not started and is getting close to the deadline.

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Richard Haselgrove

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Message 470 - Posted: 9 Mar 2012, 23:27:29 UTC - in response to Message 468.  

Will they get paid if the go over the time limit,or get canceled by server.
How does it work on this project , concerning these issues ??

If the task has not started running before the deadline - so no time is wasted - then the task will be aborted by the client on your computer, without reference to the project.

If the task has started - it will be allowed to continue until complete. If the time taken is really excessive, at some point it may get discarded without payment, but that won't happen for several days after the deadline. My task 796522 was due 28 Feb 2012 | 23:22:56 UTC, returned 5 Mar 2012 | 3:25:36 UTC - over 5 days late - but still validated and credited.

Don't push your luck too hard, though.
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zombie67 [MM]
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Message 471 - Posted: 9 Mar 2012, 23:49:43 UTC
Last modified: 9 Mar 2012, 23:53:25 UTC

97655 NumberFields@home 3/9/2012 3:40:44 PM Requesting new tasks for CPU
97656 NumberFields@home 3/9/2012 3:40:44 PM [sched_op] CPU work request: 364269.67 seconds; 0.12 devices
97657 NumberFields@home 3/9/2012 3:40:44 PM [sched_op] ATI work request: 0.00 seconds; 0.00 devices
97658 NumberFields@home 3/9/2012 3:40:47 PM Scheduler request completed: got 0 new tasks
97659 NumberFields@home 3/9/2012 3:40:47 PM [sched_op] Server version 613
97660 NumberFields@home 3/9/2012 3:40:47 PM No tasks sent
97661 NumberFields@home 3/9/2012 3:40:47 PM No tasks are available for Get Decic Fields
97662 NumberFields@home 3/9/2012 3:40:47 PM No tasks are available for the applications you have selected.
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Message 472 - Posted: 10 Mar 2012, 0:16:19 UTC

Can't get any Linux work.
Getting the same as zombie67.
I did get a couple of Windows work units but nothing for the two hosts I just attached to the project that are running Linux.

Conan
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Profile Eric Driver
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Message 473 - Posted: 10 Mar 2012, 1:15:09 UTC - in response to Message 472.  

I think the high demand for the GetDecics app is confusing the scheduler.

I adjusted the weighting higher to 100-to-1, so it should issue 100 GetDecics for every BoundedDecic. Last time I did this there were complaints of no BoundedDecic WUs, but maybe things will be different now...

Give it another shot and see what happens.
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Profile Eric Driver
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Message 475 - Posted: 10 Mar 2012, 1:48:55 UTC - in response to Message 473.  

I also found some config items that I wasn't previously aware of. One on them is the size of the job cache that the scheduler uses. I bumped this up from the default of 100 to 800 jobs. Let's hope that keeps it from running out of work.
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Message 476 - Posted: 10 Mar 2012, 2:36:56 UTC

Yay! Finally got some GetDecics tasks!
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Message 477 - Posted: 10 Mar 2012, 4:29:18 UTC
Last modified: 10 Mar 2012, 4:37:29 UTC

Me too! ;)

Estimated time to completion on sandy bridge is ~1 hour. I thought these ran ~2 days?

Edit: If these are really ~2 days long each, I will have a cache of 24 days per core. What's the deadline again?
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Message 479 - Posted: 10 Mar 2012, 7:27:50 UTC - in response to Message 477.  

Me too! ;)

Estimated time to completion on sandy bridge is ~1 hour. I thought these ran ~2 days?

Edit: If these are really ~2 days long each, I will have a cache of 24 days per core. What's the deadline again?



On my 3.3GHz core i5, I have seen times between 30 and 60 hours, with the average somewhere around 48 hours. But according to the server_status page, the average of the last 100 WUs was 69 hours.

Yeah, it looks like you will probably be aborting some WUs. The deadline is 7 days with a 7 day grace period.
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spingadus[MM]

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Message 482 - Posted: 10 Mar 2012, 10:19:55 UTC

Yeah, the time estimation is not correct. I believe when I first started my tasks, they said something around 2 hours as well, but they are still running.

Do these tasks checkpoint? Just curious. I wouldn't want to reboot and lose a days worth of work.
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Message 487 - Posted: 10 Mar 2012, 16:35:05 UTC

Any estimate on how long you will be giving out extra credit for the GetDecics tasks?
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Message 488 - Posted: 10 Mar 2012, 18:33:24 UTC - in response to Message 487.  

Any estimate on how long you will be giving out extra credit for the GetDecics tasks?


well, tough stuff deserves better payment.

i think that's the deal..
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Profile Eric Driver
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Message 490 - Posted: 10 Mar 2012, 19:11:55 UTC - in response to Message 488.  

The answer to your first question is, yes checkpointing occurs every 5 minutes. I haven't seen any crashes caused by the app itself (knock on wood), but every now and then some users experience an error (with the client?) that kills the thread. The error message is the same as you would get if you went to the task manager and killed the process (or used the kill command in linux). The few hosts that this happened on never complained, so I assume they were doing something to cause it and know the cause. Bottom line, you shouldn't have any problems with the app dying. But there is always that risk, and hence the extra credits.

For your 2nd question, the extra credits will continue until the current batch is finished (DS14x121). From the batch_status page you can see how many of these are left. For fairness, I will wait until all users have returned those that are still in progress. So that means you can still receive the extra credit on the next batch (DS15x???) while we wait for the previous batch to finish. At any rate, I will send out a notice before I stop the extra credit.
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Message 494 - Posted: 11 Mar 2012, 3:02:23 UTC - in response to Message 490.  

I'm happily crunching away. Thanks for the response.
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