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tvdsluis
Cruncher Joined: Apr 12, 2007 Post Count: 26 Status: Offline Project Badges: ![]() ![]() ![]() ![]() |
After the last update, the processing time for a work unit is a lot longer.
The page faults are way down, but the processing time is longer. It first took 3.5 hours to complete, now 4.5 hours to complete 1 workunit. Is the longer processing time something everybody has , or is it just me. |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
hi tvdsluis,
----------------------------------------It may have coincided with a 'heavier' batch, but yes the increase on my quad was about 10-15 minutes average up to 4.6-4.7 hours, but opposed on my C2D it came down by almost half an hour. The overall project WU average is coming down suggesting that those with truly extended hours have cut it by a very significant amount. Within a series I've observed variations from 3.8 to 4.9 hours, so for now am considering it within norm, but interested to here if more see this on a continuous basis. The programmers may have had to compromise somewhere to work around the page faulting which for some was in the billions and doubling run time. Here's some stat data given the daily average hours per job. 7,413227 feb 18 7,376983 feb 19 7,313571 feb 20 7,126219 feb 21 7,185980 feb 22 7,140714 feb 23 7,200180 feb 24 What's important is that overall averages are lower and consistent across all platforms and that seems to have been achieved. There is a supplemental graphs post that tracks daily averages. Anyone keeping an eye out can see there how each project is moving. ttyl
WCG
----------------------------------------Please help to make the Forums an enjoyable experience for All! [Edit 1 times, last edit by Sekerob at Feb 26, 2008 9:17:26 AM] |
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tvdsluis
Cruncher Joined: Apr 12, 2007 Post Count: 26 Status: Offline Project Badges: ![]() ![]() ![]() ![]() |
The 1 hour increase is on a Q6600 quad core machine.
I have some older machines, and there i see the same thing. A dual amd machine, 14 hours per wu before, now about 18 hours per wu. An old celeron machine, 18 hours per wu, and now 24 hours per wu. I also had millions of page faults per wu, which are now down to thousands of faults per wu, so a big drop, which should give me a better processing performance. So I understand that overall there is a decrease in time per wu, but on my 3 different machines, I have a consistent increase in processing time per wu of about 25%. So I am still wondering what is wrong with my setups. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hello tvdsluis,
We had a problem overloading the servers when Uplinger produced some very short FAAH work units. This was compensated for initially by reducing the percentage of FAAH units sent out and increasing HPF2 and HCC. Then I saw some of my work units getting about an hour longer. Not a big difference, but I figure that they are allocating more work per unit to reduce the load on the server. It seems to be a small increase. Once FAAH settles down, they might shorten it a bit again. Lawrence |
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tvdsluis
Cruncher Joined: Apr 12, 2007 Post Count: 26 Status: Offline Project Badges: ![]() ![]() ![]() ![]() |
Ok, thanks for the answer.
I'll keep my eye on my processing time the coming weeks. |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
Here a chart showing the marked improvement of average run time, particular where the version 5.15 comes out of the system and is substituted with results processed using the 5.20 science release. Typically since the slower machines are last to report, there is often a brief spike before dailies resume their regular averages. Similar at the start of a series one sees the population to be initially only composed of the fast devices delivering first after which the slower begin to add to the daily averages.
----------------------------------------To come back to the duration, the amount of work in these jobs is I think constant, but the Chrystal image could from one to the next set be holding more information to analyze, all chrystal 'quality' not being equal. (From the ego stroking department ;>)
WCG
Please help to make the Forums an enjoyable experience for All! |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
My 2 GHz processor usually takes about 7 3/4 hours do do a hcc wu. Seems about right, I guess.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I got several HCC-units today with an estimated time of 19 hours, what's up with that?
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
Just ignore and let it run. Got a DDDT beta with 14 hours on it and it finished in 1:08.
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WCG
Please help to make the Forums an enjoyable experience for All! |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Ok they are in the queu to be run, let's see how long it will take to crunch them.
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