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World Community Grid Forums
Category: Completed Research
Forum: Help Conquer Cancer
Thread: Run Length Increased? |
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Thread Status: Active Total posts in this thread: 10
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Warped@RSA
Senior Cruncher South Africa Joined: Jan 15, 2006 Post Count: 422 Status: Offline Project Badges: 
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I have found that the latest group of HCC work units seem to have an increase in run-length of about 50%. On a 64-bit Linux system about 1 hr vs 1.5hrs.
----------------------------------------Is this deliberate or should I look for other reasons?
Dave
---------------------------------------- [Edit 1 times, last edit by Warped@RSA at Oct 19, 2011 6:48:09 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Seems to be deliberate. Note it is always an estimate. So it may be what is used to calculate how long it will take to run on your system could be wrong.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I have found that the latest group of HCC work units seem to have an increase in run-length of about 50%. On a 64-bit Linux system about 1 hr vs 1.5hrs. Is this deliberate or should I look for other reasons? 1. Opposed to most other sciences, the techs can NOT tailor HCC job sizes. Each job runs the full analysis on a crystal target. 2. No nothing wrong with your computer (if the Elapsed/CPU time differential is still the same). I netted a half dozen today on W7-64 and some seem to run a bit longer, but on project average, there's only been a 0.1 hour increase. (Visit the Crunching Chart for the flatliner). X0960046660268200502241348_1 01:35:55 (01:35:46) 19-10-2011 22:54 19-10-2011 22:57 X0960044120755200412172113_1 01:27:35 (01:25:16) 19-10-2011 19:52 19-10-2011 19:53 X0950051331122200506241903_0 01:36:55 (01:34:43) 19-10-2011 18:24 19-10-2011 18:25 X0950051330956200506241907_0 01:23:42 (01:22:18) 19-10-2011 18:11 19-10-2011 18:11 Some target groups will be a little harder than others. Averages last 7 days: 1,669488 13th 1,609883 14th 1,563144 15th 1,545185 16th 1,565371 17th 1,610458 18th 1,643803 19th --//-- |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
The longer wu's have been around for a number of weeks, I have noticed them, it would be nice if we were actually told about them, then again why tell us sheep anything. Along with the change in the quicker hcc wu's, it makes the results returned stat worthless. Worthless is quite the personal debate at the moment, 8 years I have been crunching something or other and I am really beginning to question the feasibility of all these faceless crunching programs, after almost 32 years cpu time dedicated here, I have decided to to turn off 3 machines
Regards |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hello vandiesel,
HCC is running image analysis on pictures of a crystal solution. The program itself can be changed. In fact, the current HCC program is much faster. But recent changes in computing time are simply due to changes in the actual pictures which take more or less time. The average time has scarcely changed. For me, the real personal cost of WCG is mind share. Once I have something like this running on my computer, I WILL look in on it to see what is happening. I am mostly set-and-forget. I never bother changing settings once I am satisfied and I let WCG choose the project mix, rather than make my own selection. I always thought the idea of distributed computing was good but I only followed the news about the Great Hunt for Mersenne Primes and other projects. Number Theory has a distinguished history but it always seemed boring to me personally. When I read the news that IBM was establishing the WCG, I decided that I could trust them to select the sort of projects that I would approve of if I could review them. So I signed my computer into the WCG and I have not been disappointed. Just as I always suspected, I do spend some time following the news about each project. This soon made me start posting on the forum which ended up taking even more of my time being a (lazy) CA. But I am still happy about the average quality of the programs running on my computer. I understand about not wanting to fill up a house with computers. Most people are like me. I am happy to be making good use of the computer that I do have and occasionally I keep the old computer running also for a while before I finally junk it. But I have never had more than one old computer running on my network. Look over the projects at http://www.distributedcomputing.info/projects.html and check out what is available. Some distributed human offer great opportunities for personal involvement, but that is not what I want to do. I think that WCG is a great choice for putting my personal computer to productive use with minimal supervision on my part. The fact that I am unable to ignore it is just a personal weakness and is more fun for me than alternatives such as surfing the web looking for odd news.  This has nothing to do with being gullible sheep.Lawrence |
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knreed
Former World Community Grid Tech Joined: Nov 8, 2004 Post Count: 4504 Status: Offline Project Badges: 
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The longer wu's have been around for a number of weeks, I have noticed them, it would be nice if we were actually told about them, then again why tell us sheep anything. You have to remember that what we are doing here is research and expanding what is known. Variations in the runtime length are unpredictable and therefore we cannot notify in you in advance. I am really beginning to question the feasibility of all these faceless crunching programs Please review this page: http://www.worldcommunitygrid.org/about_us/di...amp;sortBy=&pageNum=1 Those are the papers written about research that has been done here. There is real research being done. Also take a look at the videos on these pages: http://www.worldcommunitygrid.org/about_us/viewNewsArticle.do?articleId=183 http://www.worldcommunitygrid.org/about_us/viewNewsArticle.do?articleId=164 http://www.worldcommunitygrid.org/about_us/viewNewsArticle.do?articleId=159 http://www.worldcommunitygrid.org/about_us/viewNewsArticle.do?articleId=147 These are the researchers talking about the work they are doing. We just did one for HPF2 today (over 100 people attended the live presentation) and the replay will be available in a few days. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I did notice some runtime increase in the HCC_v6.42 WUs. It is a small bump: what used to take about 1hr on average my machines now takes about 1hr15min on average, with some WUs still matching the nominal 1hr runtime of past WUs. I continue to believe in the value of the research, so it would take a lot more than something like a small bump in runtime to make me change course. How effective are scientists in approaching the research and the methodologies involved is another matter. There is a 'peer review' mechanism for that.
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Bearcat
Master Cruncher USA Joined: Jan 6, 2007 Post Count: 2803 Status: Offline Project Badges: 
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Vandiesel, been in your shoes at one point in time and presume others have to. I started looking for little green men before finding WCG. It was fun but thought if there was anything in outer space, they would let us know. Lost interest. Knowing that there is a slight chance of curing any disease here at WCG is what intrigued me. Am glad to be a part of these projects. Everyone here has there own reason for doing this. Some more personal than others. Self satisfaction is about the only reward you get here. Whether it's one core or 100, doesn't really matter, it's the fact that your here contributing is what counts. Glad to see you crunching and hope you plan on staying around to help.
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Crunching for humanity since 2007!
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TimAndHedy
Senior Cruncher Joined: Jan 27, 2009 Post Count: 267 Status: Offline Project Badges:
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The longer wu's have been around for a number of weeks, I have noticed them, it would be nice if we were actually told about them, then again why tell us sheep anything. Along with the change in the quicker hcc wu's, it makes the results returned stat worthless. Worthless is quite the personal debate at the moment, 8 years I have been crunching something or other and I am really beginning to question the feasibility of all these faceless crunching programs, after almost 32 years cpu time dedicated here, I have decided to to turn off 3 machines Regards I know the feeling, our time and expense seems to be under appreciated, but you have to do it for you and a desire to help people. Science is a crap shoot. You try many things and take the things that work, but we are helping with the process and I sincerely hope that someday it actually makes a difference. Especially with HCC I think it actually is and for HFCC I have hope. Hope you don't give up but if you do 32 years is something to be proud of. |
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Warped@RSA
Senior Cruncher South Africa Joined: Jan 15, 2006 Post Count: 422 Status: Offline Project Badges:
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Thanks for all the responses.
----------------------------------------I can imagine that the work units will indeed vary and, as long as this is assisting with the science, great. After a couple of days to see if the run length settled down, my observation is that the range between shortest and longest lengths has increased. On this particular host the range was fairly consistently between 0.9hrs and 1.1hrs. This range is now from 0.83hrs to 1.64hrs.
Dave
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