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Thread Status: Active Total posts in this thread: 28
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hi creepy,
The application program is (almost) the same, whether you use BOINC or UD. The only differences are the sections that communicate between the distributed computing client and the project application. Just remember that the throttle is activated in the UD client, so it will run at only 60% speed by default unless you set your throttle control to 100%. The BOINC throttle is still under development, so it has not been activated in the standard BOINC client. Lawrence |
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Alther
Former World Community Grid Tech United States of America Joined: Sep 30, 2004 Post Count: 414 Status: Offline Project Badges:
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so is using boinc quicker or slower than the ud? I have it all turned up, 100% throttle, running non-stop, and set 2 a high priority standard in task manager It's really meaningless to say that BOINC is faster than UD (or vice versa). The platform just manages the science app. It's the science app that does all the work, so the same app running on Windows under UD will run at almost the exact same speed under BOINC. The only real benefit BOINC has is being able to take advantage of multi-processor machines, as UD is currently unable (without 3rd party software) to take advantage of more than 1 CPU. But comparing apples to apples, the grid platform doesn't matter. Also, setting the application to High priority doesn't do anything. It's still running as the lowest priority on the system. I've gone into detail on why this is, but you have to really understand Windows scheduling and how priorities work. Besides, what's the point of changing the priority? To get it to complete a few seconds (literally) sooner? Assuming your machine isn't busy doing something else, it's working away on the workunit. Typically your CPU is working on the workunit >90% of the time.
Rick Alther
Former World Community Grid Developer |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Some of the WCG projects are at a small but noticable disadvantage on UD. For example, HDC does a lot of disk IO, and the UD platform stream encrypts this (very inefficiently). This has caused noticable performance degradation, and I understand that disk IO is actually throttled in order to prevent serious system degradation in HDC.
There are a couple of other very minor differences that can give BOINC the edge. It's a very tiny advantage, though (except for the dual core issue, which can double performance). |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
HPF2 seems to be overly sensitive to PC use compared to other sciences ..... if i leave the machine alone it goes substantially faster. Anyway, it finished, loaded an FAAH, and the CPU time shot up to the throttle setting, which HPF2 refuses to do..... something not right, but what?
----------------------------------------Edit: Not to Bump to the top... yes Halfcard, that's what i said. I copied the science and daemon names from explorer and added it in all places i can think of for the throttle and security software... identical to what I did for FAAH or GC or HDC in the past ..... given the science name is same for UD to before the restart, i really not expected to have changed anything but the daemon name..... and that does not need CPU time....nanoseconds.
WCG
----------------------------------------Please help to make the Forums an enjoyable experience for All! [Edit 2 times, last edit by Sekerob at Nov 25, 2006 10:50:45 AM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
HPF2 seems to be overly sensitive to PC use compared to other sciences ..... if i leave the machine alone it goes substantially faster. Anyway, it finished, loaded an FAAH, and the CPU time shot up to the throttle setting, which HPF2 refuses to do..... something not right, but what?[/quot] do you mean that your cpu use is more with FAAH than with HPF2, even with the same throttle setting ?[Edit 1 times, last edit by Former Member at Nov 25, 2006 10:17:39 AM] |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
Okay, so here it is: Forced the client profile after a "speedy" progression on a FA@H to just send as next a fresh HPF2 (v 5.1.2.0), which it promptly did. It still is ignoring my throttle settings. Difference is, during the FAAH I de-activated Avast Antivir () and installed NOD32 v 2.7..... ergo, it's not the antivir. In the 8 hours Wall-clock it received only 15 minutes CPU time but is advancing....very slowly. Any process, like starting BOiNC on the machine will take the idle CPU time available. Who's got ideas?
----------------------------------------With 5.1.2.0, the announced smoother progress % is working fine... it's now on 8.4%
WCG
Please help to make the Forums an enjoyable experience for All! |
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Zigfried
Senior Cruncher Brazil Joined: Dec 12, 2005 Post Count: 368 Status: Offline Project Badges:
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Sekerob, try to install any anti spyware. The context that you discribed could be a spyware effect. Because when you press CTRL+ALT+DEL and check your process you no task using your CPU. Spywares could be using it and their cpu use will not be displayed. Check if your CPU is slower than usual.
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
Zigfried, thanks, but the finesse is in starting BOiNC and it getting all the idle time up to throttle level.... i.e. no covert processes stealing low level idle time. There's no spyware or smapware-watch ... periodic thorough scan is enough (including rootkitrevealers)... hey i use a proper browser :D
----------------------------------------It's now 20% progress, 13 wall-clock hours and 30 minutes CPU time. The machine zooms as always.... maybe a too-smart smapware caddy.... switching HPF2 of from the UD profile until the issue can be identified. ciao
WCG
Please help to make the Forums an enjoyable experience for All! |
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