| Index | Recent Threads | Unanswered Threads | Who's Active | Guidelines | Search |
 |
World Community Grid Forums
Category: Retired Forums
Forum: The New Members Forum [Read Only]
Thread: Calculating Length of Work Units |
| No member browsing this thread |
|
Thread Status: Active Total posts in this thread: 16
|
|
| Author |
|
|
Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
1 Take the completed Task CPU Time and convert it into Minutes by multiplying the Hours by 60 then adding the odd Minutes
2 Devide that by the Task Execution Progress being the Percentage Complete 3 Multiply the result by 100, being the Percentage 4 Then devide it by 60, being the Minutes Example: (1) Task CPU Time so far = 8 Hrs 16 mins = 480 Mins (2) Percent Complete = 25.6% devided into 480 Minutes = 18.75 minutes (3) 18.75 minutes x 100 = 1875 minutes (4) 1875 minutes devided by 60 minutes = 31 Hours 25 Minutes Answer: 31 Hours required to complete this example There is probably a quicker way of calculating this result If so please post it for everyones benefit <GRAHAM> |
||
|
|
David Autumns
Ace Cruncher UK Joined: Nov 16, 2004 Post Count: 11062 Status: Offline Project Badges: 
|
Hi Graham
----------------------------------------That's one way of doing it. This would give you a rough estimate. However, due to the vagaries of Human Protein Folding that's all it would ever be as sometimes what you think is going to be a quick one rattling through 50% in 4 hours this doesn't mean it will finish in 8 (although it might) sometimes you might get to 99% in 10 hours and then it takes another 10 hours to complete as it does whatever it does inside your CPU. Personally when I check task execution progess if it's around 4 hour 50mins and on 35% then that's about a 15 hourer that's close enough. There's enough number crunching going on on this project already  Keep on Crunching Dave If you are looking for an excellent team to join follow this thread  |
||
|
|
Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Actually Dave thats about 13 Hours 48 Minutes
This formula has been within 1% of my projections using it on my last 14 work units so I think its safe to say its worth using No Offence <GRAHAM> |
||
|
|
David Autumns
Ace Cruncher UK Joined: Nov 16, 2004 Post Count: 11062 Status: Offline Project Badges:
|
Cheers Graham
----------------------------------------Sorry I'm an old timer from another grid computing project I promise you in a years time that 13 Hours 48 Minutes will be about a 15 hourer All the best Dave |
||
|
|
Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hi Dave
Some people dont visit all the forums. So I aimed to spread the benefits of this calculation to all members in all forums. I just thought it may be useful to Tech minded users who like to calculate their progress of a current work unit and get a little more precise result of when it will be completed. But you are entitled to your opinion <GRAHAM> |
||
|
|
Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Cheers Graham Sorry I'm an old timer from another grid computing project I promise you in a years time that 13 Hours 48 Minutes will be about a 15 hourer All the best Dave If I understand you correctly, I would assume that you mean that the efficiency of one's processor will degrade over the next twelve months. Hence, the reason for it taking longer than it does currently. Would this be a fair assumption of your reply If not, I fail to see the signifance of your post and maybe you can ellucidate on your reason for coming to this conclusion to my post Looking forward to your reply Cheers <GRAHAM> |
||
|
|
David Autumns
Ace Cruncher UK Joined: Nov 16, 2004 Post Count: 11062 Status: Offline Project Badges:
|
Hi Graham just trying to be a realist and just trying to help.
----------------------------------------Post me back in December 2005 and we'll discuss again. I shouldn't worry yourself so much about your progress those points are mounting up now the WU problem has been fixed. Just keep on Crunching Dave |
||
|
|
Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hi Dave
----------------------------------------Please supply me with some documented info to support your facts as to the time factor you have arrived at, as I am really excited to find out how you arrive at this conclusion. Why wait till this time next year to support your facts Or maybe you should have suggested that they are just theories and are not as yet supportable Regarding the progress remark I as are many others who have posted questions regarding the length of work units like to have a better idea of when they will complete and has nothing to do with points. Looking forward to your response All the best <GRAHAM> [Edit 1 times, last edit by Former Member at Dec 7, 2004 5:57:45 PM] |
||
|
|
Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
 GUYS ! Let it go! Just accept that some people are happy to calculate a rough estimate in their head (works for me, probably in another week or so I just won't care anymore) and that others want to know precisely. Personally, as there is about a 33% chance that I'll miss the switch to a new work unit (Happy 8-hour-a-night sleeper here), I don't see the importance that a few minutes will make. The flamer wars were a thing of the early 90s. Very unfashionable. Chris |
||
|
|
David Autumns
Ace Cruncher UK Joined: Nov 16, 2004 Post Count: 11062 Status: Offline Project Badges:
|
Hi Graham
----------------------------------------I didn't intend for my reply to your first post to be the beginning of a blow for blow slug out match Graham - adding <No Offense> to your replies doesn't make them any more palatable The information I posted in that reply was for the common knowlege of those that visit the forums the point being it is not possible to work out the completion time of a work unit from the run time already taken. Rick Alther (Application Developer) has called the process non-deterministic another way to say this is that the run time is random. As your experience grows in this project you will see work units skipping through percentage points in seconds as the agent encounters sequences it cannot fold then seemingly pause for for an eternity on 79% for example as a more difficult sequence taking a longer time to calculate its possible folding permutations is encountered. I hope this clears up any confusion I may have created. Regards Dave |
||
|
|
|