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Posts by Alan Barnes

1) Message boards : News : Clearing the Queue (Message 66705)
Posted 19 Oct 2017 by Alan Barnes
Post:
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
Post:
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
Post:
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
Post:
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
Post:
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
Post:
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
Post:
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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