workuntits with short deadline

Message boards : Number crunching : workuntits with short deadline
Message board moderation

To post messages, you must log in.

AuthorMessage
Profile Sebastian Brack

Send message
Joined: 22 Aug 99
Posts: 9
Credit: 11,186,556
RAC: 16
Germany
Message 1744300 - Posted: 23 Nov 2015, 15:52:54 UTC

Hello @all,

i got obtained some workunits with realy short deadlines. Is this the normal state for some S@H Workuntis?

ID: 1744300 · Report as offensive
Profile BilBg
Volunteer tester
Avatar

Send message
Joined: 27 May 07
Posts: 3720
Credit: 9,385,827
RAC: 0
Bulgaria
Message 1744306 - Posted: 23 Nov 2015, 16:20:29 UTC - in response to Message 1744300.  

http://setiathome.berkeley.edu/results.php?hostid=7148977&offset=0&show_names=1&state=6&appid=

Since those are all VLAR WUs I would guess:
- "they" (people at the lab) turned ON "Resent lost tasks" https://www.google.com/#q=resent+lost+task
- those 5 of your tasks were "sent" initially to CPU but never received (become "ghosts")
- next request from your BOINC was for GPU tasks, server see 5 "lost tasks" but they are VLAR and can't be sent to GPU so the server makes them expire ("Timed out")
 


- ALF - "Find out what you don't do well ..... then don't do it!" :)
 
ID: 1744306 · Report as offensive
Claggy
Volunteer tester

Send message
Joined: 5 Jul 99
Posts: 4654
Credit: 47,537,079
RAC: 4
United Kingdom
Message 1744329 - Posted: 23 Nov 2015, 18:28:21 UTC - in response to Message 1744306.  
Last modified: 23 Nov 2015, 18:28:52 UTC

- next request from your BOINC was for GPU tasks, server see 5 "lost tasks" but they are VLAR and can't be sent to GPU so the server makes them expire ("Timed out")

And the time/date shown is when they timed out, not their deadline, that column is dual use, in english it says 'Time reported or deadline'

Claggy
ID: 1744329 · Report as offensive
Profile Sebastian Brack

Send message
Joined: 22 Aug 99
Posts: 9
Credit: 11,186,556
RAC: 16
Germany
Message 1744330 - Posted: 23 Nov 2015, 18:29:42 UTC

Thank you, for your fast answer. I did not know, that Ghost exist ;o) Firstonce, i had read some articles about the conflict between VLAR's und the Nvidia-GPU. The question is, how can i prevent to get such a mistake at the future??
ID: 1744330 · Report as offensive
Profile BilBg
Volunteer tester
Avatar

Send message
Joined: 27 May 07
Posts: 3720
Credit: 9,385,827
RAC: 0
Bulgaria
Message 1744363 - Posted: 23 Nov 2015, 20:03:49 UTC - in response to Message 1744330.  

The question is, how can i prevent to get such a mistake at the future??

Usually this is caused by bad Internet - the response from the server do not reach your computer.
But this "bad Internet" may be somewhere on the path, not near you.
In fact nothing really bad happened - you never received those tasks, they will be sent to other computer.

If you are curious - you may check/search in Event Log (Ctrl+Shift+E)
or in the files stdoutdae.txt and stdoutdae.old (in BOINC Data directory) the string:
Scheduler request failed

E.g. you may find such lines:
02-Nov-2015 02:58:41 [WUProp@Home] Scheduler request failed: HTTP internal server error
15-Nov-2015 13:51:34 [SETI@home] Scheduler request failed: Server returned nothing (no headers, no data)
18-Nov-2015 13:08:56 [SETI@home] Scheduler request failed: Couldn't connect to server

But really important in this case is Timeout was reached - you see the dates are old (I have logs from 13-Nov-2009 till now) and from different projects:
12-Oct-2010 14:51:30 [SETI@home] Scheduler request failed: Timeout was reached
27-Aug-2013 02:38:13 [WUProp@Home] Scheduler request failed: Timeout was reached
06-Oct-2014 15:29:44 [Asteroids@home] Scheduler request failed: Timeout was reached
17-Feb-2015 03:22:01 [WUProp@Home] Scheduler request failed: Timeout was reached
 


- ALF - "Find out what you don't do well ..... then don't do it!" :)
 
ID: 1744363 · Report as offensive

Message boards : Number crunching : workuntits with short deadline


 
©2024 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.