Computational Errors

Author	Message
Mathiasthegreat2 Send message Joined: 14 Aug 16 Posts: 7	Message 71557 - Posted: 14 Aug 2016, 19:43:16 UTC Hey guys, I have been having problems recently when I got my old iMac running. it has a Core 2 Duo processor, ATI 2400 GPU (Its absolute garbage so I don't use it in computation) and one gigabyte of ram. So what happens is I begin my computations but 2-3 seconds later they stop due to a computational error. There is nothing showing in the log or any evidence of instability on my computer. I am running version 7.2.42 since I am still on OS X 10.5.8. Thanks! ID: 71557 ·

Jord Volunteer tester Help desk expert Send message Joined: 29 Aug 05 Posts: 15480	Message 71558 - Posted: 14 Aug 2016, 20:30:45 UTC - in response to Message 71557. And which project is that with? Mind linking to one of the erroneous taskIDs? (Computation errors are made by the project science application, not by BOINC. We can give help on this, but then need information about such tasks.) ID: 71558 ·

Mathiasthegreat2 Send message Joined: 14 Aug 16 Posts: 7	Message 71559 - Posted: 14 Aug 2016, 20:55:45 UTC - in response to Message 71558. Sorry for not adding this but it happens on every single project I add. One of the task IDs that I can provide is "sah_banner_290.png" and I am running it on seti@home. I am relatively new so please guide me along if there is anything that you need me to find! ID: 71559 ·

Jord Volunteer tester Help desk expert Send message Joined: 29 Aug 05 Posts: 15480	Message 71561 - Posted: 15 Aug 2016, 0:46:59 UTC - in response to Message 71559. sah_banner_290.png is an image file, not a taskID. Perhaps you can post part of your log (Command+shift+E) for us to see something around those errors? You did allow BOINC through your firewall? (The BOINC binary needs internet connection on TCP ports 80 and 443) ID: 71561 ·

Mathiasthegreat2 Send message Joined: 14 Aug 16 Posts: 7	Message 71563 - Posted: 15 Aug 2016, 3:04:33 UTC - in response to Message 71561. Boinc is allowed through my firewall, but because I have produced so many junk results, my daily task quota has been reduced to 1 task per day so there is nothing to see in my log. I did not find any errors in my log when I was receiving the tasks. All that it did was move onto the next task. It did not say that it finished or it was sent but I am not sure if it is the GPU causing errors. I tried disabling it but the same thing happened. ID: 71563 ·

Jord Volunteer tester Help desk expert Send message Joined: 29 Aug 05 Posts: 15480	Message 71566 - Posted: 15 Aug 2016, 5:32:59 UTC Go to the computational preferences in your account of any of the projects, or if you use them in the local preferences, and uncheck Skip data verification for image files. Save changes to the website with the button at the bottom, and update the project through BOINC Manager. Some ISPs recompress image data which then corrupts the image's checksum file, giving you all the download errors. ID: 71566 ·

Mathiasthegreat2 Send message Joined: 14 Aug 16 Posts: 7	Message 71592 - Posted: 16 Aug 2016, 0:10:41 UTC - in response to Message 71566. Ok thanks. I will test it out tomorrow since I got my one task today when I booted up my Mac. Hopefully this works!!! ID: 71592 ·

Mathiasthegreat2 Send message Joined: 14 Aug 16 Posts: 7	Message 71593 - Posted: 16 Aug 2016, 0:15:38 UTC - in response to Message 71592. I forgot that I had another account but I tried it with the settings that you recommended and it said that the output file is absent. "Mon Aug 15 16:56:49 2016 \| \| cc_config.xml not found - using defaults Mon Aug 15 16:56:49 2016 \| \| Starting BOINC client version 7.2.42 for x86_64-apple-darwin Mon Aug 15 16:56:49 2016 \| \| log flags: file_xfer, sched_ops, task Mon Aug 15 16:56:49 2016 \| \| Libraries: libcurl/7.26.0 OpenSSL/1.0.1e zlib/1.2.3 c-ares/1.9.1 Mon Aug 15 16:56:49 2016 \| \| Data directory: /Library/Application Support/BOINC Data Mon Aug 15 16:56:49 2016 \| \| No usable GPUs found Mon Aug 15 16:56:49 2016 \| \| Host name: tyber-lesjacks-imac.local Mon Aug 15 16:56:49 2016 \| \| Processor: 2 GenuineIntel Intel(R) Core(TM)2 Duo CPU E8135 @ 2.40GHz [x86 Family 6 Model 23 Stepping 6] Mon Aug 15 16:56:49 2016 \| \| Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clfsh ds acpi mmx fxsr sse sse2 ss htt tm pni mon dscpl vmx est tm2 ssse3 cx16 tpr pdcm sse4_1 Mon Aug 15 16:56:49 2016 \| \| OS: Mac OS X 10.5.8 (Darwin 9.8.0) Mon Aug 15 16:56:49 2016 \| \| Memory: 1.00 GB physical, 198.53 GB virtual Mon Aug 15 16:56:49 2016 \| \| Disk: 222.44 GB total, 198.28 GB free Mon Aug 15 16:56:49 2016 \| \| Local time is UTC -7 hours Mon Aug 15 16:56:49 2016 \| \| A new version of BOINC is available. (7.6.22) <a href=http://boinc.berkeley.edu/download.php>Download</a> Mon Aug 15 16:56:49 2016 \| SETI@home \| URL http://setiathome.berkeley.edu/; Computer ID 8061747; resource share 100 Mon Aug 15 16:56:49 2016 \| SETI@home \| General prefs: from SETI@home (last modified 14-Aug-2016 19:55:18) Mon Aug 15 16:56:49 2016 \| SETI@home \| Host location: none Mon Aug 15 16:56:49 2016 \| SETI@home \| General prefs: using your defaults Mon Aug 15 16:56:49 2016 \| \| Reading preferences override file Mon Aug 15 16:56:49 2016 \| \| Preferences: Mon Aug 15 16:56:49 2016 \| \| max memory usage when active: 512.00MB Mon Aug 15 16:56:49 2016 \| \| max memory usage when idle: 921.60MB Mon Aug 15 16:56:49 2016 \| \| max disk usage: 10.00GB Mon Aug 15 16:56:49 2016 \| \| suspend work if non-BOINC CPU load exceeds 25% Mon Aug 15 16:56:49 2016 \| \| (to change preferences, visit a project web site or select Preferences in the Manager) Mon Aug 15 16:56:49 2016 \| \| Not using a proxy Mon Aug 15 16:56:49 2016 \| SETI@home \| Sending scheduler request: To fetch work. Mon Aug 15 16:56:49 2016 \| SETI@home \| Requesting new tasks for CPU Mon Aug 15 16:56:50 2016 \| SETI@home \| Scheduler request completed: got 0 new tasks Mon Aug 15 16:56:50 2016 \| SETI@home \| No tasks sent Mon Aug 15 16:56:50 2016 \| SETI@home \| This computer has finished a daily quota of 1 tasks Mon Aug 15 16:59:15 2016 \| SETI@home \| update requested by user Mon Aug 15 16:59:20 2016 \| SETI@home \| Sending scheduler request: Requested by user. Mon Aug 15 16:59:20 2016 \| SETI@home \| Requesting new tasks for CPU Mon Aug 15 16:59:26 2016 \| SETI@home \| Scheduler request completed: got 0 new tasks Mon Aug 15 16:59:26 2016 \| SETI@home \| Not sending work - last request too recent: 157 sec Mon Aug 15 16:59:26 2016 \| SETI@home \| General prefs: from SETI@home (last modified 15-Aug-2016 16:59:02) Mon Aug 15 16:59:26 2016 \| SETI@home \| Host location: none Mon Aug 15 16:59:26 2016 \| SETI@home \| General prefs: using your defaults Mon Aug 15 16:59:26 2016 \| \| Reading preferences override file Mon Aug 15 16:59:26 2016 \| \| Preferences: Mon Aug 15 16:59:26 2016 \| \| max memory usage when active: 512.00MB Mon Aug 15 16:59:26 2016 \| \| max memory usage when idle: 921.60MB Mon Aug 15 16:59:26 2016 \| \| max disk usage: 10.00GB Mon Aug 15 16:59:26 2016 \| \| suspend work if non-BOINC CPU load exceeds 25% Mon Aug 15 16:59:26 2016 \| \| (to change preferences, visit a project web site or select Preferences in the Manager) Mon Aug 15 17:00:01 2016 \| SETI@home \| Resetting project Mon Aug 15 17:00:01 2016 \| SETI@home \| Detaching from project Mon Aug 15 17:00:09 2016 \| \| Fetching configuration file from http://setiathome.berkeley.edu/get_project_config.php Mon Aug 15 17:01:54 2016 \| SETI@home \| Master file download succeeded Mon Aug 15 17:01:59 2016 \| SETI@home \| Sending scheduler request: Project initialization. Mon Aug 15 17:01:59 2016 \| SETI@home \| Requesting new tasks for CPU Mon Aug 15 17:02:01 2016 \| SETI@home \| Scheduler request completed: got 0 new tasks Mon Aug 15 17:02:01 2016 \| SETI@home \| Not sending work - last request too recent: 155 sec Mon Aug 15 17:02:03 2016 \| SETI@home \| Started download of arecibo_181.png Mon Aug 15 17:02:03 2016 \| SETI@home \| Started download of sah_40.png Mon Aug 15 17:02:05 2016 \| SETI@home \| Finished download of arecibo_181.png Mon Aug 15 17:02:05 2016 \| SETI@home \| Finished download of sah_40.png Mon Aug 15 17:02:05 2016 \| SETI@home \| Started download of sah_banner_290.png Mon Aug 15 17:02:05 2016 \| SETI@home \| Started download of sah_ss_290.png Mon Aug 15 17:02:06 2016 \| SETI@home \| Finished download of sah_banner_290.png Mon Aug 15 17:02:06 2016 \| SETI@home \| Finished download of sah_ss_290.png Mon Aug 15 17:02:51 2016 \| SETI@home \| update requested by user Mon Aug 15 17:02:52 2016 \| SETI@home \| Sending scheduler request: Requested by user. Mon Aug 15 17:02:52 2016 \| SETI@home \| Requesting new tasks for CPU Mon Aug 15 17:02:53 2016 \| SETI@home \| Scheduler request completed: got 0 new tasks Mon Aug 15 17:02:53 2016 \| SETI@home \| Not sending work - last request too recent: 52 sec Mon Aug 15 17:02:53 2016 \| SETI@home \| General prefs: from SETI@home (last modified 15-Aug-2016 17:02:44) Mon Aug 15 17:02:53 2016 \| SETI@home \| Host location: none Mon Aug 15 17:02:53 2016 \| SETI@home \| General prefs: using your defaults Mon Aug 15 17:02:53 2016 \| \| Reading preferences override file Mon Aug 15 17:02:53 2016 \| \| Preferences: Mon Aug 15 17:02:53 2016 \| \| max memory usage when active: 512.00MB Mon Aug 15 17:02:53 2016 \| \| max memory usage when idle: 921.60MB Mon Aug 15 17:02:53 2016 \| \| max disk usage: 10.00GB Mon Aug 15 17:02:53 2016 \| \| suspend work if non-BOINC CPU load exceeds 25% Mon Aug 15 17:02:53 2016 \| \| (to change preferences, visit a project web site or select Preferences in the Manager) Mon Aug 15 17:07:58 2016 \| SETI@home \| Sending scheduler request: To fetch work. Mon Aug 15 17:07:58 2016 \| SETI@home \| Requesting new tasks for CPU Mon Aug 15 17:07:59 2016 \| SETI@home \| Scheduler request completed: got 0 new tasks Mon Aug 15 17:07:59 2016 \| SETI@home \| No tasks sent Mon Aug 15 17:07:59 2016 \| SETI@home \| This computer has finished a daily quota of 1 tasks Mon Aug 15 17:08:03 2016 \| \| Suspending computation - user request Mon Aug 15 17:11:10 2016 \| SETI@home \| project suspended by user Mon Aug 15 17:11:13 2016 \| SETI@home \| Resetting project Mon Aug 15 17:11:13 2016 \| SETI@home \| Detaching from project Mon Aug 15 17:11:25 2016 \| \| Fetching configuration file from http://setiathome.berkeley.edu/get_project_config.php Mon Aug 15 17:11:47 2016 \| SETI@home \| Master file download succeeded Mon Aug 15 17:11:52 2016 \| SETI@home \| Sending scheduler request: Project initialization. Mon Aug 15 17:11:52 2016 \| SETI@home \| Requesting new tasks for CPU Mon Aug 15 17:11:53 2016 \| SETI@home \| Scheduler request completed: got 1 new tasks Mon Aug 15 17:11:55 2016 \| SETI@home \| Started download of setiathome_8.03_x86_64-apple-darwin Mon Aug 15 17:11:55 2016 \| SETI@home \| Started download of setigraphics_8.03_x86_64-apple-darwin Mon Aug 15 17:11:56 2016 \| SETI@home \| Finished download of setigraphics_8.03_x86_64-apple-darwin Mon Aug 15 17:11:56 2016 \| SETI@home \| Started download of bl_bkg_803.jpg Mon Aug 15 17:11:57 2016 \| SETI@home \| Finished download of bl_bkg_803.jpg Mon Aug 15 17:11:57 2016 \| SETI@home \| Started download of bl_803.jpg Mon Aug 15 17:11:58 2016 \| SETI@home \| Finished download of bl_803.jpg Mon Aug 15 17:11:58 2016 \| SETI@home \| Started download of setiathome-8.03_AUTHORS.txt Mon Aug 15 17:11:59 2016 \| SETI@home \| Finished download of setiathome_8.03_x86_64-apple-darwin Mon Aug 15 17:11:59 2016 \| SETI@home \| Finished download of setiathome-8.03_AUTHORS.txt Mon Aug 15 17:11:59 2016 \| SETI@home \| Started download of setiathome-8.03_COPYING.txt Mon Aug 15 17:11:59 2016 \| SETI@home \| Started download of setiathome-8.03_COPYRIGHT.txt Mon Aug 15 17:12:00 2016 \| SETI@home \| Finished download of setiathome-8.03_COPYING.txt Mon Aug 15 17:12:00 2016 \| SETI@home \| Finished download of setiathome-8.03_COPYRIGHT.txt Mon Aug 15 17:12:00 2016 \| SETI@home \| Started download of setiathome-8.03_README.txt Mon Aug 15 17:12:00 2016 \| SETI@home \| Started download of seti_803.jpg Mon Aug 15 17:12:01 2016 \| SETI@home \| Finished download of setiathome-8.03_README.txt Mon Aug 15 17:12:01 2016 \| SETI@home \| Finished download of seti_803.jpg Mon Aug 15 17:12:01 2016 \| SETI@home \| Started download of 02ap10aa.5165.8676.11.38.52 Mon Aug 15 17:12:01 2016 \| SETI@home \| Started download of arecibo_181.png Mon Aug 15 17:12:02 2016 \| SETI@home \| Finished download of 02ap10aa.5165.8676.11.38.52 Mon Aug 15 17:12:02 2016 \| SETI@home \| Finished download of arecibo_181.png Mon Aug 15 17:12:02 2016 \| SETI@home \| Started download of sah_40.png Mon Aug 15 17:12:02 2016 \| SETI@home \| Started download of sah_banner_290.png Mon Aug 15 17:12:03 2016 \| SETI@home \| Finished download of sah_40.png Mon Aug 15 17:12:03 2016 \| SETI@home \| Finished download of sah_banner_290.png Mon Aug 15 17:12:03 2016 \| SETI@home \| Started download of sah_ss_290.png Mon Aug 15 17:12:04 2016 \| SETI@home \| Finished download of sah_ss_290.png Mon Aug 15 17:12:06 2016 \| \| Resuming computation Mon Aug 15 17:12:06 2016 \| SETI@home \| Starting task 02ap10aa.5165.8676.11.38.52_0 Mon Aug 15 17:12:13 2016 \| SETI@home \| Computation for task 02ap10aa.5165.8676.11.38.52_0 finished Mon Aug 15 17:12:13 2016 \| SETI@home \| Output file 02ap10aa.5165.8676.11.38.52_0_0 for task 02ap10aa.5165.8676.11.38.52_0 absent Mon Aug 15 17:12:18 2016 \| \| Suspending computation - user request Mon Aug 15 17:13:01 2016 \| SETI@home \| project suspended by user Mon Aug 15 17:13:02 2016 \| SETI@home \| project resumed by user Mon Aug 15 17:13:05 2016 \| SETI@home \| Resetting project Mon Aug 15 17:13:06 2016 \| SETI@home \| update requested by user Mon Aug 15 17:13:10 2016 \| SETI@home \| Master file download succeeded Mon Aug 15 17:13:15 2016 \| SETI@home \| Sending scheduler request: Requested by user. Mon Aug 15 17:13:15 2016 \| SETI@home \| Requesting new tasks for CPU Mon Aug 15 17:13:16 2016 \| SETI@home \| Scheduler request completed: got 0 new tasks Mon Aug 15 17:13:16 2016 \| SETI@home \| Not sending work - last request too recent: 83 sec Mon Aug 15 17:13:18 2016 \| SETI@home \| Started download of arecibo_181.png Mon Aug 15 17:13:18 2016 \| SETI@home \| Started download of sah_40.png Mon Aug 15 17:13:19 2016 \| SETI@home \| Finished download of arecibo_181.png Mon Aug 15 17:13:19 2016 \| SETI@home \| Finished download of sah_40.png Mon Aug 15 17:13:19 2016 \| SETI@home \| Started download of sah_banner_290.png Mon Aug 15 17:13:19 2016 \| SETI@home \| Started download of sah_ss_290.png Mon Aug 15 17:13:20 2016 \| SETI@home \| Finished download of sah_banner_290.png Mon Aug 15 17:13:20 2016 \| SETI@home \| Finished download of sah_ss_290.png" ID: 71593 ·

Les Bayliss Help desk expert Send message Joined: 25 Nov 05 Posts: 1654	Message 71594 - Posted: 16 Aug 2016, 0:39:17 UTC - in response to Message 71593. Output file 02ap10aa.5165.8676.11.38.52_0_0 for task 02ap10aa.5165.8676.11.38.52_0 absent is BOINC's way of telling you that the result file that was supposed to be created, couldn't be found when BOINC went to upload the result. In other words, the task failed before that point. The real error messages should be in the Task page for that task, in your Account, on the project's web site. ID: 71594 ·

Jord Volunteer tester Help desk expert Send message Joined: 29 Aug 05 Posts: 15480	Message 71595 - Posted: 16 Aug 2016, 1:11:59 UTC <core_client_version>7.2.42</core_client_version> <![CDATA[ <message> process got signal 5 </message> <stderr_txt> dyld: lazy symbol binding failed: Symbol not found: ___bzero Referenced from: /Library/Application Support/BOINC Data/slots/0/../../projects/setiathome.berkeley.edu/setiathome_8.03_i686-apple-darwin Expected in: /usr/lib/libSystem.B.dylib dyld: Symbol not found: ___bzero Referenced from: /Library/Application Support/BOINC Data/slots/0/../../projects/setiathome.berkeley.edu/setiathome_8.03_i686-apple-darwin Expected in: /usr/lib/libSystem.B.dylib </stderr_txt> ]]> Not very useful. Signal 5 means SIGTRAP: Trace trap (not reset when caught) , also not very useful. Perhaps a permission problem on that system? @Mathiasthegreat2, can you reinstall BOINC please, so just to make sure the permissions are correctly set up? ID: 71595 ·

Mathiasthegreat2 Send message Joined: 14 Aug 16 Posts: 7	Message 71596 - Posted: 16 Aug 2016, 5:25:03 UTC - in response to Message 71595. Thanks for the quick responses! I re-installed BOINC and removed any residual files. I rebuilt my permissions and rebooted after but still no luck. I even tried doing it on a new account after going through the "new account" routine because OS X 10.5.8 does not have a recovery partition. It still says that the output file is absent. ID: 71596 ·

Juha Volunteer developer Volunteer tester Help desk expert Send message Joined: 20 Nov 12 Posts: 801	Message 71614 - Posted: 16 Aug 2016, 17:24:50 UTC - in response to Message 71595. Last modified: 16 Aug 2016, 17:25:04 UTC OS: Mac OS X 10.5.8 (Darwin 9.8.0) dyld: Symbol not found: ___bzero Referenced from: /Library/Application Support/BOINC Data/slots/0/../../projects/setiathome.berkeley.edu/setiathome_8.03_i686-apple-darwin Expected in: /usr/lib/libSystem.B.dylib I think that means Seti MB app is (unintentionally) built for a newer OS X. ID: 71614 ·

Mathiasthegreat2 Send message Joined: 14 Aug 16 Posts: 7	Message 71619 - Posted: 16 Aug 2016, 21:08:54 UTC - in response to Message 71614. So... does that just mean that my version of OS X is too old? I don't want to pay for more ram to upgrade to El Capitan so... I guess I can't do it. Thanks anyways... ID: 71619 ·

Jord Volunteer tester Help desk expert Send message Joined: 29 Aug 05 Posts: 15480	Message 71620 - Posted: 16 Aug 2016, 21:20:49 UTC - in response to Message 71619. Last night I fired off an email to the BOINC developer for the Mac with the question what could cause the error, I'm still waiting for an answer from him (he's working elsewhere these days and may even be on vacation). Earlier I also sent an email to the developers of the science applications at Seti, and its administrator. A bit of information is coming back at the moment, but I want to wait for fuller answers first before answering completely. So please just hold on. ID: 71620 ·

Jord Volunteer tester Help desk expert Send message Joined: 29 Aug 05 Posts: 15480	Message 71626 - Posted: 17 Aug 2016, 8:04:52 UTC I got an answer back from the developer of BOINC for the Mac: Regarding Signal 5 due to "dyld: Symbol not found: ___bzero" Apparently on OS 10.5.8, the bzero function was listed in the libraries with one leading underscore (_bzero) but in later versions of OS X with 2 underscores (__bzero). I suspect the applications have been built on newer versions of OS X, and so are looking for __bzero. If the application had been built on OS 10.5.8, it would be looking for _bzero. When I searched for "Symbol not found: ___bzero" (without the quotes) on Google, I found a number of people with the same problem running newer software (not just BOINC) on OS 10.5.8. The solution would be to have two separate science applications, one geared for the older OS X, one for the newer, forced by plan_class. One using the _bzero function, the other using the __bzero function. Always nice when the OS developer doesn't build in backward compatibility. Anyway, it's not a BOINC problem, but a science application problem, and therefore it must be solved by the Seti developers. I've forwarded all info to them and will see what that brings. ID: 71626 ·

Copyright © 2024 University of California.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.