Computation error - Astropulse?


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Message boards : Number crunching : Computation error - Astropulse?

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Diane Hyatt-Little
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Message 1352308 - Posted: 31 Mar 2013, 3:07:01 UTC

2878536504 6728537 16 Mar 2013, 19:42:42 UTC 16 Mar 2013, 19:56:03 UTC Error while downloading 0.00 0.00 --- AstroPulse v6 v6.01

Does anyone know what this means? Should I not accept Astropulse tasks if there is an "error while downloading" or is this normal?

Thank you!
Diane
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Message 1352311 - Posted: 31 Mar 2013, 3:24:07 UTC - in response to Message 1352308.

2878536504 6728537 16 Mar 2013, 19:42:42 UTC 16 Mar 2013, 19:56:03 UTC Error while downloading 0.00 0.00 --- AstroPulse v6 v6.01

Does anyone know what this means? Should I not accept Astropulse tasks if there is an "error while downloading" or is this normal?

Thank you!
Diane


That error was not on your system. Your system erred out with a computational error here. The error code -202 is listed in the BOINC FAQ but really isn't well explained in layman's terms. Perhaps one of the resident code experts could help with an explanation.
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Diane Hyatt-Little
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Message 1352312 - Posted: 31 Mar 2013, 3:45:07 UTC - in response to Message 1352311.

That error was not on your system. Your system erred out with a computational error here. The error code -202 is listed in the BOINC FAQ but really isn't well explained in layman's terms. Perhaps one of the resident code experts could help with an explanation.


Thank you Gatekeeper! I will await any explanation from a code expert.

Diane

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Message 1352341 - Posted: 31 Mar 2013, 6:58:56 UTC

When the Astropulse application starts, it sets up an area of shared memory which can also be seen by the companion Graphics application in case the user asks to see the graphics or uses the BOINC screensaver. If something goes haywire and makes it impossible to set up that shared memory, that -202 ERR_SHMEM_NAME is issued.

For that Task 2879091715 there were 111 successful starts before the one that failed. That suggests just some temporary condition caused the error, and unfortunately it's probably impossible to pin it down further.

It can be discouraging to have a task error out at about 95% progress after nearly two days of run time, but a personal choice whether one such case is enough to stop doing Astropulse.

Joe

Message boards : Number crunching : Computation error - Astropulse?

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