Posts by Alan Barnes
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1) Message boards : News : Clearing the Queue (Message 66705)
Posted 19 Oct 2017 by Alan Barnes
But that doesn't entirely explain why some "Didn't need" WUs which were cancelled attracted credit whilst others didn't.

AB
2) Message boards : News : Clearing the Queue (Message 66701)
Posted 19 Oct 2017 by Alan Barnes
I have noticed that recently a number of completed work-units (MilkyWay@Homev1.46) have been marked as "Didn't need", only some of which have been allocated credit. Please explain!

Also I obtained a number of "Completed, can't validate" results. Again I suppose this is due to the recent Transitioner problems etc.

Alan Barnes
3) Message boards : News : Bad Runs Put Up Over The Weekend (Message 66637)
Posted 17 Sep 2017 by Alan Barnes
Same here although very few completing at all and none on Linux Ubuntu 14.04.

Alan
4) Message boards : Number crunching : N-Body long processing time (Message 62206)
Posted 22 Aug 2014 by Alan Barnes
I too am experiencing problems with N-body simulation v1.42 -- a job ran for almost 17 hours on 2 CPUs reached 100% and then promptly crashed with a computation error.

805862330 596473367 12 Aug 2014, 14:32:47 UTC 22 Aug 2014, 21:41:18 UTC Error while computing 60,819.13 103,158.20 --- MilkyWay@Home N-Body Simulation v1.42 (mt)

It was running on
GenuineIntel
Pentium(R) Dual-Core CPU T4500 @ 2.30GHz [Family 6 Model 23 Stepping 10]
(2 processors)


We are not amused!!

Alan Barnes
5) Questions and Answers : Wish list : Credit for N-body Simulation (Message 61713)
Posted 11 May 2014 by Alan Barnes
Why is the credit gained for running the N-Body Simulation so miserly? It uses two CPUs on my machine and runs for about 2 hours (elapsed time) and yet the credit gained is considerably less than processes running for a shorter time on only one CPU.

Alan Barnes

For example:

739342477 553083608 10 May 2014, 23:33:18 UTC 11 May 2014, 9:08:28 UTC Completed and validated 4,686.24 4,617.28 106.88 MilkyWay@Home v1.01
739341968 553054361 10 May 2014, 23:33:18 UTC 11 May 2014, 9:08:28 UTC Completed and validated 9,567.88 9,400.50 213.76 Milkyway@Home Separation (Modified Fit) v1.30
739341961 553083233 10 May 2014, 23:33:18 UTC 11 May 2014, 9:08:28 UTC Completed and validated 4,648.01 4,534.58 106.88 Milkyway@Home Separation (Modified Fit) v1.30
739335755 553078635 10 May 2014, 23:33:18 UTC 11 May 2014, 9:08:28 UTC Completed and validated 7,613.17 14,580.35 58.87 MilkyWay@Home N-Body Simulation v1.40 (mt)
739335754 553078634 10 May 2014, 23:33:18 UTC 11 May 2014, 9:08:28 UTC Completed and validated 7,143.05 13,678.46 54.64 MilkyWay@Home N-Body Simulation v1.40 (mt)
6) Questions and Answers : Macintosh : Repeated Computational Errors on MacOSX (Message 60500)
Posted 1 Dec 2013 by Alan Barnes
Further to my earlier post: the tasks all seem terminate with the error message:

<core_client_version>7.2.33</core_client_version>
<![CDATA[
<message>
process got signal 5
</message>
<stderr_txt>
dyld: unknown required load command 0x80000022

</stderr_txt>
]]>


Presumably some update of a system call is incompatible with the older version on my machine.

Alan Barnes
7) Questions and Answers : Macintosh : Repeated Computational Errors on MacOSX (Message 60499)
Posted 1 Dec 2013 by Alan Barnes
I am getting repeated computational errors which cause most (though not all) MilkyWay tasks to terminate soon after launching.

I am running an oldish version of MacOSX Version 10.5.8 (Darwin 9.8.0) on a GenuineIntel Intel(R) Core(TM)2 Duo CPU T7300 @ 2.00GHz [x86 Family 6 Model 15 Stepping 11](2 processors). I am running BOINC 7.2.33.

I have had similar problems with all tasks from Asteroids@Home. OK the machine is prehistoric, but it does successfully run all Einstein@Home projects.

Is there a fix? Or is there a subset of MilkyWay applications that will run on older Macs?


Curiously two tasks seem to have run successfully:
Task 621272327 to completion consuming nearly 2hrs of CPU time
Task 622043280 so far running for 0:49:30

Alan Barnes




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