Message boards : Number crunching : Deadline Differences between Website and Client
Message board moderation

To post messages, you must log in.

AuthorMessage
Profile Yeti
Volunteer moderator
Avatar

Send message
Joined: 2 Sep 04
Posts: 453
Credit: 193,569,815
RAC: 13,099
Message 29148 - Posted: 9 Mar 2017, 21:10:24 UTC

I just discovered a big difference between the deadline shown on the Website and shown on the client.

It is 1 Day difference !

I have checked this and it is the same for Atlas and Sixtrack, for other Sub-Projects I can not check.

My clients are 7.6.33 and 7.6.22


Supporting BOINC, a great concept !
ID: 29148 · Report as offensive     Reply Quote
Harri Liljeroos
Avatar

Send message
Joined: 28 Sep 04
Posts: 675
Credit: 43,600,442
RAC: 15,632
Message 29155 - Posted: 10 Mar 2017, 8:43:21 UTC

I remember this being discussed in the forums several years ago. No remedy was made about it. I couldn't find the message thread in question.
ID: 29155 · Report as offensive     Reply Quote
computezrmle
Volunteer moderator
Volunteer developer
Volunteer tester
Help desk expert
Avatar

Send message
Joined: 15 Jun 08
Posts: 2410
Credit: 225,987,175
RAC: 125,553
Message 29157 - Posted: 10 Mar 2017, 9:29:48 UTC

CMS deadlines also:
Local: 2017-04-09:04:41:08 CEST
Server: 2017-04-10:02:41:08 UTC


The clocks will shortly change to DST but this does not happen at the same date around the world.
It does not explain a one day difference but it may point to a general bug in the time calculation.
ID: 29157 · Report as offensive     Reply Quote
maeax

Send message
Joined: 2 May 07
Posts: 2094
Credit: 159,488,420
RAC: 140,116
Message 29159 - Posted: 10 Mar 2017, 10:12:24 UTC
Last modified: 10 Mar 2017, 10:13:34 UTC

The same procedure as last year!

The CEST is correct for those tasks with end-time after the date when CEST begin.

Edit: you see the same with one hour less at the end of Octobre.
ID: 29159 · Report as offensive     Reply Quote
Profile Yeti
Volunteer moderator
Avatar

Send message
Joined: 2 Sep 04
Posts: 453
Credit: 193,569,815
RAC: 13,099
Message 29160 - Posted: 10 Mar 2017, 10:17:21 UTC - in response to Message 29159.  

The same procedure as last year!

The CEST is correct for those tasks with end-time after the date when CEST begin.

Edit: you see the same with one hour less at the end of Octobre.

Nope, it can't be the CEST, because the difference is 1 day, not 1 hour


Supporting BOINC, a great concept !
ID: 29160 · Report as offensive     Reply Quote
computezrmle
Volunteer moderator
Volunteer developer
Volunteer tester
Help desk expert
Avatar

Send message
Joined: 15 Jun 08
Posts: 2410
Credit: 225,987,175
RAC: 125,553
Message 29161 - Posted: 10 Mar 2017, 10:38:40 UTC

It may skip a whole day due to a bug.
Let´s crosscheck this with other projects.

At the moment I have no WUs with deadlines after clock change (except CMS) and all of them show normal time calculation.

If the calculations show errors in a few days and return back to normal after the clock change then it´s related to DST.
If the error occurs only with LHC then it is a server problem, otherwise it´s unclear.
ID: 29161 · Report as offensive     Reply Quote
computezrmle
Volunteer moderator
Volunteer developer
Volunteer tester
Help desk expert
Avatar

Send message
Joined: 15 Jun 08
Posts: 2410
Credit: 225,987,175
RAC: 125,553
Message 29215 - Posted: 13 Mar 2017, 7:48:53 UTC

Meanwhile I got a couple of WUs from other projects with due dates after the clock change.
All of them show correct time calculations.
The problem seems to be CERN specific.
ID: 29215 · Report as offensive     Reply Quote
computezrmle
Volunteer moderator
Volunteer developer
Volunteer tester
Help desk expert
Avatar

Send message
Joined: 15 Jun 08
Posts: 2410
Credit: 225,987,175
RAC: 125,553
Message 29321 - Posted: 16 Mar 2017, 9:39:56 UTC

Meanwhile I got a couple of WUs from other projects ...
... including ATLAS (unconsolidated server).
The anomaly persists for CMS (only).
ID: 29321 · Report as offensive     Reply Quote
Profile Yeti
Volunteer moderator
Avatar

Send message
Joined: 2 Sep 04
Posts: 453
Credit: 193,569,815
RAC: 13,099
Message 29323 - Posted: 16 Mar 2017, 10:08:58 UTC - in response to Message 29321.  

Meanwhile I got a couple of WUs from other projects ...
... including ATLAS (unconsolidated server).
The anomaly persists for CMS (only).

Nope, my Atlas-Tasks at LHC show the same difference


Supporting BOINC, a great concept !
ID: 29323 · Report as offensive     Reply Quote
Crystal Pellet
Volunteer moderator
Volunteer tester

Send message
Joined: 14 Jan 10
Posts: 1279
Credit: 8,482,293
RAC: 1,690
Message 29325 - Posted: 16 Mar 2017, 10:20:04 UTC

I've seen that sometimes in earlier days with other projects too.
The purpose is/was that the client will start running in high priority on time and is still able to return on time (24hrs spare time left) and a resend task from the project is not needed.
ID: 29325 · Report as offensive     Reply Quote
computezrmle
Volunteer moderator
Volunteer developer
Volunteer tester
Help desk expert
Avatar

Send message
Joined: 15 Jun 08
Posts: 2410
Credit: 225,987,175
RAC: 125,553
Message 29326 - Posted: 16 Mar 2017, 10:56:23 UTC

@ Yeti
ATLAS tasks from unconsolidated (1) or consolidated (2) server?
Mine are from (1) as I do not (yet) run ATLAS from (2).

@ CP
I run a small buffer so my CMS tasks start immediately after they are downloaded.
They are far away from the 24h border.
ID: 29326 · Report as offensive     Reply Quote
Profile Yeti
Volunteer moderator
Avatar

Send message
Joined: 2 Sep 04
Posts: 453
Credit: 193,569,815
RAC: 13,099
Message 29327 - Posted: 16 Mar 2017, 11:39:48 UTC - in response to Message 29326.  

@ Yeti
ATLAS tasks from unconsolidated (1) or consolidated (2) server?
Mine are from (1) as I do not (yet) run ATLAS from (2).


2

Nope, my Atlas-Tasks at LHC show the same difference



Supporting BOINC, a great concept !
ID: 29327 · Report as offensive     Reply Quote

Message boards : Number crunching : Deadline Differences between Website and Client


©2024 CERN