Unreachable Deadline
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Dewayne Haun
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Message 1013 - Posted: 8 Apr 2013, 18:09:58 UTC

I posted in the News section, but this may be where I should have posted this questions in the first place. Here is a copy paste of what I posted there.

I have Tsinghua Nano Tech Research 1.29 client working on job batch_1902_1637_1 that has been running for 214:14:08 and is only 17.426% complete. It says the estimated remaining time is 730:50:00 minutes but the deadline is 4/14/2013. I also run other projects and even if I did not, there is no way to meet this deadline with this computer. Is this a bug of some sort? Should I just cancel the job now so I can utilize the CPU time for another project since there is no way to meet this deadline? I know this is an old computer but is my CPU too slow to participate in the CAS@home project?

Since then, the project has run to 234:02:31 with 18.866% complete. The estimated time remaining is 730:34:25. Even though there Elapsed time is increasing, the Remaining (estimated) time will go down a little and then start going back up again. There are no errors in the Event Log of BOINC. Here is the line from the last time I restarted the computer:

4/8/2013 2:43:31 AM | CAS@home | Restarting task batch_1902_1637_1 using LAMMPS version 129 in slot 0

I am really at a lose.

Dewayne Haun
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Message 1016 - Posted: 12 Apr 2013, 22:27:50 UTC

I am posting an update, even though I have not heard anything about my question yet. I am currently at 20.650% complete, 258:53:19 Elapsed, with 730:20:58 Remaining (estimated), and the deadline is still 4/14/2013 at 4:32:59 PM. I am suspending this task and setting my computers to NOT get any new tasks at least until I get a response from the project.

It is a shame that I will probably loose over 258 hours of computing time as well as other projects that that time could have been used that computing time.

wan
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Message 1017 - Posted: 15 Apr 2013, 2:37:56 UTC - in response to Message 1016.

sorry for the delay.. I am looking into the problem now.. let me get back to you later.

wenjing wu
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Message 1018 - Posted: 15 Apr 2013, 2:58:09 UTC - in response to Message 1013.

Hello, I checked this workunit. The information from your host is right.
The estimated hours is 334 hours, and the deadline is set up to be 5 times of the estimated time, so in this case, it is 1667 hours, about 70 days. This workunit was sent to your host on 3 Feb 2013, 2:10:54 UTC, so the deadline is 4/14/2013.
If this kind of long running task seem to have tight deadline, I can adjust to loosen it a bit, ie, 7 times of the estimated hours which assumes 1/7 of the cpu time can be used for this application. But in order to get the results back in a reasonable time, it can not be too loose.

I posted in the News section, but this may be where I should have posted this questions in the first place. Here is a copy paste of what I posted there.

I have Tsinghua Nano Tech Research 1.29 client working on job batch_1902_1637_1 that has been running for 214:14:08 and is only 17.426% complete. It says the estimated remaining time is 730:50:00 minutes but the deadline is 4/14/2013. I also run other projects and even if I did not, there is no way to meet this deadline with this computer. Is this a bug of some sort? Should I just cancel the job now so I can utilize the CPU time for another project since there is no way to meet this deadline? I know this is an old computer but is my CPU too slow to participate in the CAS@home project?

Since then, the project has run to 234:02:31 with 18.866% complete. The estimated time remaining is 730:34:25. Even though there Elapsed time is increasing, the Remaining (estimated) time will go down a little and then start going back up again. There are no errors in the Event Log of BOINC. Here is the line from the last time I restarted the computer:

4/8/2013 2:43:31 AM | CAS@home | Restarting task batch_1902_1637_1 using LAMMPS version 129 in slot 0

I am really at a lose.


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Message boards : Number crunching : Unreachable Deadline