Scheduling vs. Report Deadline

Questions and Answers : Preferences : Scheduling vs. Report Deadline
Message board moderation

To post messages, you must log in.

AuthorMessage
Profile K1VRA

Send message
Joined: 28 May 99
Posts: 4
Credit: 17,362,982
RAC: 0
United States
Message 993308 - Posted: 1 May 2010, 19:01:44 UTC

I have noticed that, with every PC I have doing WUs,it looks like the WUs with the most immediate Report Deadline are NOT the ones being worked on. I believe my WUs are being finished before the deadline, I was just curious how BOINC decides which WUs to do first.

Thanks.
ID: 993308 · Report as offensive
Profile Gundolf Jahn

Send message
Joined: 19 Sep 00
Posts: 3184
Credit: 446,358
RAC: 0
Germany
Message 993312 - Posted: 1 May 2010, 19:07:30 UTC - in response to Message 993308.  

The tasks are done First In First Out with round robin among projects, as long as no task is in danger of missing its deadline. Then BOINC switches to Earliest Deadline First (high priority) mode.

Gruß,
Gundolf
Computer sind nicht alles im Leben. (Kleiner Scherz)

SETI@home classic workunits 3,758
SETI@home classic CPU time 66,520 hours
ID: 993312 · Report as offensive
Profile K1VRA

Send message
Joined: 28 May 99
Posts: 4
Credit: 17,362,982
RAC: 0
United States
Message 993553 - Posted: 2 May 2010, 16:55:22 UTC - in response to Message 993312.  

Thanks for the reply. I didn't think it was a problem, just did not know how that scheduling worked.
ID: 993553 · Report as offensive
John McLeod VII
Volunteer developer
Volunteer tester
Avatar

Send message
Joined: 15 Jul 99
Posts: 24806
Credit: 790,712
RAC: 0
United States
Message 993645 - Posted: 2 May 2010, 23:35:57 UTC

The inputs to the simulator that determines what tasks need High Priority mode include: Duration Correction Factor / project, report deadline for each task, estimated CPU time left per project, fraction of time BOINC is on, fraction of time that BOINC allows processing, your "Connect Every X" setting, resource share for each project, and a few other items that I am certain I have forgotten.


BOINC WIKI
ID: 993645 · Report as offensive

Questions and Answers : Preferences : Scheduling vs. Report 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.