Version 6.15/6.16 of the malariacontrol science application |
Message boards : Number crunching : Version 6.15/6.16 of the malariacontrol science application
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We’re now ready to start testing version 6.15 of the science application. It contains fixes for problems we discovered with 6.12/13, and some improvements to the part of the application which reads the input files (an XML-parser). As a consequence of these improvements, we had to update our Linux build system to a newer distribution. It is recommended to build BOINC science application on a system with an old Linux distribution installed to prevent problems due to library incompatibilities, but getting the application to build on the Linux image suggested by the BOINC project team proved impossible. We’re now using the oldest Ubuntu distribution which is still supported (6.06 LTS), and hope this is not causing problems for Linux users. | |
| ID: 9695 | Rating: 0 | rate:
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Wow...long wu's! The estimated FLOPS are way off. | |
| ID: 9696 | Rating: 0 | rate:
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And this W/U core dumped | |
| ID: 9697 | Rating: 0 | rate:
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Hi. | |
| ID: 9699 | Rating: 0 | rate:
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I've tested version 6.15 on both Ubuntu 8.04 and 8.10, and it's working perfect :) | |
| ID: 9700 | Rating: 0 | rate:
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The Windows version of 6.15 seemed to have a problem, the tasks were taking much too long to complete. We released a new version 6.16 for Windows, which should fix this. | |
| ID: 9701 | Rating: 0 | rate:
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Tested one WU on Fedora 10 x64, no problem: 44626930 | |
| ID: 9702 | Rating: 0 | rate:
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We’re now using the oldest Ubuntu distribution which is still supported (6.06 LTS), and hope this is not causing problems for Linux users. My older linux client doesn't seem to have a problem starting the work, only with finishing it. :)
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| ID: 9707 | Rating: 0 | rate:
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My crunching of the Win 6.16 WU seems to take about 49 minutes | |
| ID: 9709 | Rating: 0 | rate:
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there's still a HUGE gap between linux and windows crunch times, please see this WU: http://www.malariacontrol.net/workunit.php?wuid=16324300 | |
| ID: 9735 | Rating: 0 | rate:
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there's still a HUGE gap between linux and windows crunch times, please see this WU: http://www.malariacontrol.net/workunit.php?wuid=16324300 Lucky for you the higher credit was granted. It was >2x the smaller credit. | |
| ID: 9739 | Rating: 0 | rate:
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How do you verify the version (6.15 vs 6.16) running? | |
| ID: 9745 | Rating: 0 | rate:
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How do you verify the version (6.15 vs 6.16) running? Your client shows the version number for running tasks in the "Application" column on the "Task" panel (you may need to select advanced view for this). For completed tasks, you can go to "Your account" on this web page, "Tasks View", "Task ID click for details", and check the version at the bottom. Nick ____________ Nicolas Maire Swiss Tropical and Public Health Institute http://www.swisstph.ch | |
| ID: 9750 | Rating: 0 | rate:
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hi K-Keith, if you are monitoring the forum... | |
| ID: 9753 | Rating: 0 | rate:
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Some really off-the-wall credit claims for 6.16: | |
| ID: 9807 | Rating: 0 | rate:
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hi K-Keith, if you are monitoring the forum... That work unit is no longer available. My guess would be, it depends on other things running on the system, Disk speed, Bus Speed, Memory bandwidth, Memory available, and all. Certain things take wall time away from boinc tasks, and I have seen applications that measure time in elapsed wall time not actual cpu used time. Other things such as a stuck window's window (not responding) sometimes does the same thing. Don't know the exact reason here. Did you reboot in the middle of the run or is you task switch interval short ? When an application is suspended and then restarts, it sometimes has to go back a little or a lot and compute again those calculations, adding more time to the already existing time used. I have a 90 minute switch set on my system. It may also depend on what other boinc project task runs, I have also seen tasks that use more than 50% cpu (in my case running two, each should have 50%). Without observing myself the actual task running and noting what else is going on, it is very hard to guess at the actual cause. | |
| ID: 9808 | Rating: 0 | rate:
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Mystery solved. Benchmarks were way skewed. Reran them and credit claims should normalize again. Some really off-the-wall credit claims for 6.16: | |
| ID: 9825 | Rating: 0 | rate:
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That work unit is no longer available. ta Keith - just wondered. sorry I left it till just before the history of that wu cleared from the db. there's no obvious thing to pick out of your reply - I have an 80minute switch set between tasks and, whenever I look, things look pretty evenly split 50:50 between the two (virtual) cpus. I do have things set to run on both cores. I've always got cpdn running on one of them. otherwise there's probably loads of idle windows in background including a browser with millions of tabs open. I'll remember to blow the dust out of my cooling fins now the weather is warming up!! _ oh, another thing for general amusement: I've tried some of the 6.16 test wus on my ancient Win98 boat-anchor and suprisingly they seem to run alright, albeit not very efficiently from the credits earned for time used to complete in the couple so far with the wingman also reporting. I'll only do a few more days of them. I doubt very many crunchers are still trying to keep their old pcs going or that the sysops will be very worried how well 6.16 runs on them - I just treat it as part of my winter-heating system!! :-) | |
| ID: 9833 | Rating: 0 | rate:
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A short update on the current testing phase: We see relatively high error rates on both Linux and Windows platforms (pass rate is only around 90%). Mac's are doing ok with no errors, but the sample size is much smaller there. A lot of the errors seem to be caused by exceeding some of the resource bounds we set in the workunit template. Especially checkpoints take a lot of disk space, more than the 250MB we were allowing so far. The reason is that currently the data is written uncompressed to disk for easier debugging. The next version will compress the data to save disk space. | |
| ID: 9849 | Rating: 0 | rate:
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Message boards :
Number crunching :
Version 6.15/6.16 of the malariacontrol science application