Gravitational Wave search O2 All-Sky search ("O2AS20-500")

Jim1348
Jim1348
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On the server status page, it

On the server status page, it shows O2AS20-500 has 0 tasks to send.  Is this accurate?  I often have problems getting them, and don't know why.

Richie
Richie
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Jim1348 wrote:On the server

Jim1348 wrote:
On the server status page, it shows O2AS20-500 has 0 tasks to send.  Is this accurate?  I often have problems getting them, and don't know why.

https://einsteinathome.org/content/currently-running-all-sky-gravitational-wave-search

Jim1348
Jim1348
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Thanks.  I hope the signal

Thanks.  I hope the signal they are looking for did not get de-jittered. 

Gary Roberts
Gary Roberts
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Betreger wrote:Today I

Betreger wrote:

Today I recieve 2 tasks which claim to already been validated. I instinct is to abort them and not waste the electricity. Any comments?

https://einsteinathome.org/workunit/363530444

363530454

I assume the staff are trying to finish off any remaining tasks from the previous run as quickly as possible.  My guess is that they have increased the 'initial replication' of those left from the normal 2 to a somewhat higher figure.  This gets more copies into circulation quickly in the hope that someone will return it quickly.  If anybody happens to notice such extra tasks where the quorum has already been completed in the meantime, aborting their redundant copy is the correct action.

If you look carefully at the first workunit you pointed to, you can see that at the time you received your extra copy - 31 Aug 2018 20:10:51 UTC - the quorum was still 'live'.  There was just one returned result from 29 Aug 2018 23:48:04 UTC.  The second result that actually completed the quorum arrived at 1 Sep 2018 0:17:39 UTC which is just over 4 hours after you received yours.  You aborted your now redundant copy some 15 hours later at 1 Sep 2018 15:15:32 UTC.  This is precisely the correct action to have taken, since you had now noticed that the quorum was complete.

 

Cheers,
Gary.

tullio
tullio
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I received 3 Gravitational

I received 3 Gravitational wave all sky search on LIGO 01 today.

Tullio

B.I.G
B.I.G
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I got many Gravitational

I got many Gravitational Tasks in the recent days and realised they all error immediately at zero seconds. On both of my hosts.

https://einsteinathome.org/host/6045593/tasks/0/50

https://einsteinathome.org/host/3426951/tasks/0/50

The one has an old version of BOINC the first link has the latest one installed. Both Computers run MacOS 10.12.6 one has an Xeon the other one an i7 CPU. The Gamma-Ray Pulsar Search tasks run just fine. Is there just something wrong with my setup or is there a general problem with these tasks?

Richie
Richie
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B.I.G wrote:I got many

B.I.G wrote:
I got many Gravitational Tasks in the recent days and realised they all error immediately at zero seconds. ... ... Both Computers run MacOS ... ... Is there just something wrong with my setup or is there a general problem with these tasks?

https://einsteinathome.org/goto/comment/167427

"OSX app version seems broken, so disabled for now"

Your tasks came from the new 'Gravitational Wave All-sky search on LIGO O1 Open Data', which is still in beta test phase. It's a different application than the 'Gravitational Wave O2 All-sky Search' in this topic. Maybe MAC version got some fine tuning after Bernd's message and server sent out a few tasks to test if they run okay.

B.I.G
B.I.G
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Thanks for your reply, I

Thanks for your reply, I completely forgot I have beta testing on. It's been years since I changed the settings. Well good to know (again).

Bernd Machenschalk
Bernd Machenschalk
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LIGO has released the O2 data

LIGO has released the O2 data with de-jittering and hence we are confident that they have checked that the procedure does not introduce any artefact. Therefore we're picking up the O2AS search again, for now extending beyond the originally planned 500Hz (thus "O2AS20-500" is a bit misleading).

BM

Stef
Stef
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Posts: 206
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It appears that I can't run

It appears that I can't run O2 WUs:

SIGSEGV: segmentation violation

Debian GNU/Linux buster/sid [4.19.0-4-amd64|libc 2.28 (Debian GLIBC 2.28-8)]
"Run Linux app versions built with LIBC 2.15" is enabled.

https://einsteinathome.org/task/849210006

Another host has the same issue:
Debian GNU/Linux 10 (buster) [4.19.0-4-amd64|libc 2.28 (Debian GLIBC 2.28-9)]

https://einsteinathome.org/task/849595983

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