Message boards :
Number crunching :
Short-running WU ( 13 to 30 seconds) Is this OK???
Message board moderation
| Author | Message |
|---|---|
 jaySend message Joined: 10 Aug 07 Posts: 56 Credit: 831,474 RAC: 0 
|
Greetings! Here is a sample WU: http://lhcathome.cern.ch/lhcathome/workunit.php?wuid=2444387 I was happy to see that I was not the only one that got the run time of less than one minute... Was this intended? The name of this WU is/was: w2_lhc270_4__51__s__64.28_59.31__18_20__5__45_1_sixvf_boinc23480 Recently, I have seen other WUs with times of 13.3 0.86 0.83 3.48 3.44 seconds. Just looked strange. Thought I would ask.. T H A N K Y O U Jay |
|
BlueBird Send message Joined: 16 Mar 08 Posts: 1 Credit: 4,594 RAC: 0 |
Greetings! I just had several short ones and a couple that were about half an hour long. mike |
 Send message Joined: 18 Sep 04 Posts: 163 Credit: 1,682,370 RAC: 0 |
That is OK, see e.g. here. Team Linux Users Everywhere 
|
ChertseyAl Send message Joined: 28 Nov 05 Posts: 31 Credit: 115,957 RAC: 0 |
Just looked strange. Thought I would ask.. As per Michaels link earlier, the short WUs are 'Wall-Crashers' ;) WUs currently come in three flavours - Long (1million turns), Short (100k turns) and Wall-Crashers (Kaboom!). It's frustrating to get a batch of WUs and all of them to turn out to be WCs, but it's all part of the science :) Al. |
|
EB_Foster Send message Joined: 26 Feb 08 Posts: 3 Credit: 12,815 RAC: 0 |
I've been getting a lot of the short WUs also. But I think I'd rather have those than the 80 hour monster that uFluids sent me - I don't see how it can possibly finish before the report deadline... |
|
Send message Joined: 18 Sep 04 Posts: 47 Credit: 1,886,234 RAC: 0 |
if your WU only ran a short time, the beam hit the wall.. If it claimed less than 0.01 credits, you'll be able to remember it for a long, long, long time, as it will stay in a "pending" state in your results list! I've got pages of these 0.00x "pending" WU's from the last year or so.... :( |
|
Send message Joined: 7 Oct 06 Posts: 114 Credit: 23,192 RAC: 0 |
LoL'z, Alex and Neasan my pages also overflowing with these wall crashers :( can you chaps, do nothing about them? Regards Masud. 
|
|
EB_Foster Send message Joined: 26 Feb 08 Posts: 3 Credit: 12,815 RAC: 0 |
if your WU only ran a short time, the beam hit the wall.. There are a lot of good reasons to keep it from happening, so I'm not going to gripe about getting wall-crashers. My shop lost a Tektronix 7904A* High-speed Storage scope to a beam hitting a wall. It had been borrowed to use for magnet alignment work on the Los Alamos Meson Physics Facility and was beside the beam-line when the beam wandered. They told us it would be 2 years before it had cooled down enough to use again. $24k down the tubes and no compensation for us because it was still functional... Is there any way to clean out the 0 credit claims so they're not cluttering up the lists, or does that involve too much work to be worth the resources? (* At least I think the model was a 7904A - it's been 20 years...) |
|
Paul D. Buck Send message Joined: 2 Sep 04 Posts: 545 Credit: 148,912 RAC: 0 |
It is kind of the point of the work we are doing to test the system model to prevent the actual machine from experiencing these problems ... In our computer it is just a short Task (and it can happen to any of the three lengths of assigned task) so a one million turn task only goes around 2 or 3 times ... I just wish I could do more work ... :) |
|
Send message Joined: 29 Sep 04 Posts: 3 Credit: 284,021 RAC: 0 |
Knocking these 0.00 credits straight out of the pending credit would be great. I don't mind running the w/u's but the long list of pendings is a bit of a pain and must fill your (LHC's) server up a bit. Phanteks Luxe 2, AMD 3700x, MSI 2070 super X trio, 32gb Corsiar vengance RGB pro, watercooled.  
|
©2024 CERN