Message boards : ATLAS application : No credits for perfectly good workunits
Message board moderation

To post messages, you must log in.

AuthorMessage
djoser
Avatar

Send message
Joined: 30 Aug 14
Posts: 145
Credit: 10,847,070
RAC: 0
Message 33676 - Posted: 6 Jan 2018, 4:27:13 UTC

Hello,

I have two workunits which my machine finished in time (regarding the deadline) and without any error.
But i didn't get any credits for my work, just because those workunits were handed out a second time (to machines running the native_mt app) and those machines finished the workunits faster than my computer.

This is very frustrating, because my computer only has a very tiny cpu and wu's take quite some time.
In this particular case i wasted about 100 hours of cpu-time, or about 0,3€ in electricity (1 kW).

I'm okay with wu's being canceled by server because another computer was faster as long as the wu's are in the queue and not currently being crunched, but i'm not okay with wasting resources.
Why are wu's handed out a second time in the first place as long as they doesn't error out?

Workunits: 83133808 and 83264910

I think i will stop crunching Atlas and head over to CMS and LHCb!

Regards, djoser.
Why mine when you can research? - GRIDCOIN - Real cryptocurrency without wasting hashes! https://gridcoin.us
ID: 33676 · Report as offensive     Reply Quote
AGLT2
Volunteer moderator
Project administrator
Project developer
Project tester
Volunteer developer
Project scientist

Send message
Joined: 23 Jun 14
Posts: 12
Credit: 3,730,223,077
RAC: 2,685,987
Message 33763 - Posted: 10 Jan 2018, 7:19:59 UTC - in response to Message 33676.  

Hi, Djoser

Thanks for reporting the problem.. Yes we replicate the workunit if the first instance of the workunit does not return in 3 days, but we do give all finished instances credit if they pass the validation and return within the deadline(7 days)..
I check the both workunits you gave, actually they failed at validating due to our storage problems.. Unfortunately, since the end of December, the ATLAS BOINC storage area is saturated, so a big fraction of workunits fail at uploading or being validated due to this(the vaildation fails because the uploaded result file become inaccessible to the validator).. We are working on migrating to a different storage solution, this shall take some time..

Hello,

I have two workunits which my machine finished in time (regarding the deadline) and without any error.
But i didn't get any credits for my work, just because those workunits were handed out a second time (to machines running the native_mt app) and those machines finished the workunits faster than my computer.

This is very frustrating, because my computer only has a very tiny cpu and wu's take quite some time.
In this particular case i wasted about 100 hours of cpu-time, or about 0,3€ in electricity (1 kW).

I'm okay with wu's being canceled by server because another computer was faster as long as the wu's are in the queue and not currently being crunched, but i'm not okay with wasting resources.
Why are wu's handed out a second time in the first place as long as they doesn't error out?

Workunits: 83133808 and 83264910

I think i will stop crunching Atlas and head over to CMS and LHCb!

Regards, djoser.
ID: 33763 · Report as offensive     Reply Quote
Profile Yeti
Volunteer moderator
Avatar

Send message
Joined: 2 Sep 04
Posts: 430
Credit: 117,525,067
RAC: 0
Message 33861 - Posted: 14 Jan 2018, 22:11:46 UTC - in response to Message 33763.  

Thanks for reporting the problem.. Yes we replicate the workunit if the first instance of the workunit does not return in 3 days, but we do give all finished instances credit if they pass the validation and return within the deadline(7 days)..

From the view of BOINC-Users, this is a waste of resources! A lot of user will dislike this handling.

You should set the Deadline to 3 days, then it is clear for all users what you want


Supporting BOINC, a great concept !
ID: 33861 · Report as offensive     Reply Quote
computezrmle
Volunteer moderator
Volunteer developer
Volunteer tester
Avatar

Send message
Joined: 15 Jun 08
Posts: 1965
Credit: 139,721,717
RAC: 86,692
Message 33862 - Posted: 14 Jan 2018, 22:51:11 UTC - in response to Message 33861.  

I agree with Yeti.

Just to add one point:
As long as the download/upload problems are not solved, a shorter deadline would increase the volunteer's frustration due to more tasks "violating" the deadline.
ID: 33862 · Report as offensive     Reply Quote

Message boards : ATLAS application : No credits for perfectly good workunits


©2022 CERN