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Thread Status: Active Total posts in this thread: 36
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keithhenry
Ace Cruncher Senile old farts of the world ....uh.....uh..... nevermind Joined: Nov 18, 2004 Post Count: 18667 Status: Offline Project Badges:
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Ok. So now you're hitting the server every 7 minutes. Are you sure that's a good idea? Even with 0.01, the results do get reported. It's just that that is not as fast as you would like. Is there a particlular reason that you need results to get reported so fast even if it adds to the server load unnecessarily? When they do get reported, the results still have to be validated anyway. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Keith - I appreciate what you say, however I was merely giving JC a solution to his request to speed up his reporting.
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keithhenry
Ace Cruncher Senile old farts of the world ....uh.....uh..... nevermind Joined: Nov 18, 2004 Post Count: 18667 Status: Offline Project Badges:
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Sorry, I wasn't meaning to sound like I was complaining. My concern is just that if enough folks do that, we could be increasing the load on the server unnecessarily. I'm not saying that there aren't legitimate situations where this is a good answer. There can be good reasons to pull down five days worth of WUs to crunch on. Doing that routinely when you have regular network access isn't necessarily a good thing though.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Theres no need to apologise Keith, I always appreciate reading the good advice you give - I'm sorry I sounded a bit snappy in my reply - it was a long day at work
I must admit I didn't consider the possible impact on the server - I was under the impression that even though its set to communicate every 7 mins, it would only do so when required, ie. when a WU is nearing completion/ready to report etc. In 'Messages' it doesn't show these 7 minute communications happening between these times - are you saying they do actually happen, but its not something we notice? Ady ![]() |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I have mine set to 0.005 days which = 7 minutes. With this setting my results get sent back very quickly without resorting to manually updating - maybe give it a try? You have to remember that just because you report the results as quickly as possible, you do not necessarily get any credit as results have to be validated against a quorum. That means that the points allocation, and more importantly the check to see if it is a verified result, is only as fast as the slowest server returning a WU. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Thanks stares, although I was aware of that, I thought by reporting quickly it might help the others in the quorum with faster machines to complete it quicker.
Not that it really matters, we get them in the end - and its the results that matter Do you have an answer to the other aspect I mentioned in my previous post? Ady ![]() |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Frankly, I can't see any good reason why results aren't reported when they are uploaded. I'm having a poke through the code trying to find a clue, but nothing yet. I'll get back to you if I find a good reason.
On the matter of connecting, there are several reasons why BOINC will contact the scheduler: Requested by user To fetch work To report completed tasks To send trickle-up message Unknown I'm fairly certain that BOINC won't connect every 7 minutes if it doesn't need to. I am certain that if it didn't log a connection, it didn't connect. So, check the log and we'll have a quick answer to this one :-) |
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keithhenry
Ace Cruncher Senile old farts of the world ....uh.....uh..... nevermind Joined: Nov 18, 2004 Post Count: 18667 Status: Offline Project Badges:
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Theres no need to apologise Keith, I always appreciate reading the good advice you give - I'm sorry I sounded a bit snappy in my reply - it was a long day at work I must admit I didn't consider the possible impact on the server - I was under the impression that even though its set to communicate every 7 mins, it would only do so when required, ie. when a WU is nearing completion/ready to report etc. In 'Messages' it doesn't show these 7 minute communications happening between these times - are you saying they do actually happen, but its not something we notice? Ady ![]() Is there such a thing as a short day at work these days? [/Diety] help me if I ever have to learn another language, English is tough enough for me! I have to wonder that even if there's no actual communication with the server that the code still has to take some minute amount of time to check the various conditions and determine that there's no justification for communicating with the server yet. Clearly, probably a matter of milliseconds but add it up when you do it often enough and it may matter. I'm finding that BOINC seems to be at least designed well with respect to being something you can set, start and forget about. Things seem to be pretty well balanced out. If you want to tweak something, you can and there will be reasons to do it and reasons not to. The key is figuring out the importance/relevance of those reasons. EG, when you're going on vacation for a week and won't have network access but want to keep crunching, it's pretty easy to pull down enough WU to keep a machine busy for that time. However, there are ways to do that to minimize the extent to which you could cause those WUs to be sent to additional folks unnecessarily. I'm still trying to find the method to the madness BOINC uses to decide the "To completion" times for your WUs queued up. ![]() |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
What's confusing you about the time to completion?
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David Autumns
Ace Cruncher UK Joined: Nov 16, 2004 Post Count: 11062 Status: Offline Project Badges:
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The time to completions doesn't really hold any value on the WCG as it's not possible to predict although you can make an educated guess as to what it's likely to be which is what I think the times are at the start of the process
----------------------------------------On other DC projects like SETI each work unit is of equal length to crunch so as BOINC is an all rounder time to completion in this case really is time to completion. What does make me smile is it's stubborness to acknowledge that it might have got it a bit wrong. I've got one now on 53% and it's taken 3 and a bit hours but it's still predicting another 7 hours to completion But as long as that work unit queue has got one lined up for when the other finishes I'm a happy bunny Dave ![]() |
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