| Index | Recent Threads | Unanswered Threads | Who's Active | Guidelines | Search |
 |
World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: Time to Completion vs Elapsed Time |
| No member browsing this thread |
|
Thread Status: Active Total posts in this thread: 5
|
|
| Author |
|
|
Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I've been processing tasks since 2009 and never really paid any attention to details. This is my first-ever post. So, in effect I am a newby. Please help here. Recently, I've paid attention to the posted time to Completion for a specific task. Let's use The Clean Energy Project for this example. It may say 14 hours or so to completion, prior to it starting its run. Then I may look in the BOINC Mgr on the Task tab and notice that the Elapsed time at some point says 8 hours or so. Simple math says it may complete after it logs another 6 hours or so. But I may look at the BOINC Mgr Task tab again in 3 hours and see that the specific Clean Energy Project task has already completed and is sitting at a progress of 100%. Hello, how do you have 6 hours remaining but complete the journey in less than 3 clock hours later? This occurs with Clean Energy regularly. Am I never actually completing these tasks or did they finish much more quickly than the manager originally reported. Or am I incompetent, here.
|
||
|
|
Coleslaw
Veteran Cruncher USA Joined: Mar 29, 2007 Post Count: 1343 Status: Offline Project Badges: 
|
CEP2 has a maximum run time of 12 hours. So, once you hit 12 hours it finishes and reports back regardless if it did all of its work or not.
----------------------------------------    |
||
|
|
wplachy
Senior Cruncher Joined: Sep 4, 2007 Post Count: 423 Status: Offline |
Many of your questions may be answered by checking your "Results Status" page(s). Click on the "My Grid" tab. On the left of the screen is a hot link to "Results Status", click it. This will list your in progress work units and the work units you have completed for some number of days. For all completed WUs (status not In Progress) the CPU and Elapsed time is listed (in hours) and the status will be a hot link. If you click it the WU run detail will pop up in another window. CEP2 WUs are made up of 16 "jobs". Often a number of jobs in the WU will be skipped and that will contribute to the difference between the BOINC client estimated time left and actual elapsed time.
----------------------------------------You can also compare your run times to the wingmans run times by clicking on the WU name hot link.
Bill P
 |
||
|
|
Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hi JFredrick,
The estimated time to completion is just a guess, though usually good. CEP2 has 16 jobs to run on a molecule. If something goes out of bounds on a job, it skips the later jobs. Therefore it often ends several hours earlier than estimated. Lawrence |
||
|
|
Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I'm grateful for all your replies - amaziningly fast response
Someone, please reply to answer these 2 quick questions 1. Am I now replying to any/every body to read or am I replying to the specific post where I clicked on the Reply button? 2. Can I reply to a specific person to expand on his answer without wasting other person's time - or is any "reply" always a broadcast to any/every body? --- a. Lawrence, your reply dealt with the questions I would have wanted answered if I'd only known what to ask better. That helps me a ton to realize what is actually occurring. I'd like to be clear on a couple points. What is CEP2? Am I hearing that all "application/named" tasks go thru 16 jobs, universally? The going out of bounds bit helps explain what I've seen almost always on the Clean Energy tasks that I run. They are almost always between 10 & 15 hours "Time to completion column" in BOINC mgr. And suddenly, always at the tail end, they are magically completed much ahead of schedule. --- Coleslaw, what you said further expands on why the Clean Energy Project suddenly drops out of sight long before the expected completion time has arrived. So, if MAX runtime is 12 hours why would a task ever show up in my BOINC Mgr task list with a runtime greater than 12 hours (I assume what you are calling runtime = BOINC Mgr's "To Completion" time)? --- wplachy, thanks for your suggestions they were great insight into what's happening, esp when I got to the Result Log. It shows (for my Clean Energy example) 16 jobs and as you were all saying the last 3 (13, 14, & 15) were skipped. That could easily produce instant completion even though several hours were expected to be still remaining. --- Should I click on "Close Current Tag" now that this matter is being resolved? So, did I make sense. Could someone reply to the total 6 questions detailed above. Is this the wrong way to follow up on my own original question? JFredrick |
||
|
|
|