some of the task run on my pc is associated with Astropulse. Could someone please explain the differences?

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SETI Astropulse
Not a dumb question but one that could have easily been answered by looking at the Seti home page.

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In a rich man's house there is no place to spit but his face.
Diogenes Of Sinope

some of the task run on my pc is associated with Astropulse. Could someone please explain the differences?

The s@h "Multibeam" client looks for gaussians, pulses and triplets in a 'narrow' spectrum of just 10kHz.

Astropulse is a recently introduced many-years-in-development s@h client that looks for very short duration pulses in a 'wide' spectrum of 2.5MHz.

Happy crunchin',
Martin

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See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)

Apologies for being snippy. I'm working in no sleep/sarcasm mode.

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In a rich man's house there is no place to spit but his face.
Diogenes Of Sinope

Hello.

In perusing the stats on the projects my computer has run, I noticed that it picked up a "pulse" in one of them. Will this be further investigated?

Joel

Hello.

In perusing the stats on the projects my computer has run, I noticed that it picked up a "pulse" in one of them. Will this be further investigated?

Joel

Only if the score is high enough.
SETI@Home looks for gaussians, pulses, triplets, and spikes.

In the last 24 hours alone (as of this post), 423,223 pulses were detected bySETI@Home software. It's more likely than not that *every single one of them* will turn out not to be significant or relevant to SETI.

Roughly half a billion pulses have been detected so far according to the Master Science Database:
http://setiathome.berkeley.edu/sci_status.html

... I noticed that it picked up a "pulse" in one of them. Will this be further investigated?

Yes.

It gets stored in the Master Science Database. Then sometime later, it will be checked against any other signals found for those coordinates. If an 'interesting' cluster of signals is found spread over a period of time, then that becomes 'very interesting'. The highest scoring 'interesting bits' will then get reobserved by Arecibo (hopefully if funding is arranged) to then directly explore for any signs of ET or for any other new astronomical phenomena.

Every signal counts, in some way. Note that there are very many signals recorded thus far...

When the database is speeded up, we'll be seeing some of the database analysis done in near real time with the "Nitpicker".

Keep searchin',
Martin

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See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)

some of the task run on my pc is associated with Astropulse. Could someone please explain the differences?

here's all I know about it.

CPU Time: 54:49:00 To Completion: 61:02:00

This sucker is huge and its not the first one I have done.

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some of the task run on my pc is associated with Astropulse. Could someone please explain the differences?

here's all I know about it.

CPU Time: 54:49:00 To Completion: 61:02:00

This sucker is huge and its not the first one I have done.

Astropulse takes longer to complete than Multi Beam. No worries.

I just spent 156,496.30 CPU seconds processing an Astropulse which gave me a claimed credit of 759.31. I immediately received 0.00 granted credit. Can some one tell me what this is all about.

Other Astropulse work units have "worked" fine though the credit may have remained pending for weeks.

Details:

ap_11se08af_B1_P1_00348_20081021_28011.wu - Issue - 0 credit!!!

Task ID 1065243054

For some reason, AstroPuse workunits show "0" for granted until a canonical result is chosen and a quorum has been fulfilled. Then the validator grants the appropriate amount of credit unless an error was returned by the client.

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For some reason, AstroPuse workunits show "0" for granted until a canonical result is chosen and a quorum has been fulfilled. Then the validator grants the appropriate amount of credit unless an error was returned by the client.

although I understand that AP needs at least 2 valid results to grant the credit,
I just returned one that was sent to me after the first deadline expired.
Now there are 3 done and 1 aborted by user.

WU 349511351

[size=10]Task ID     Computer  Sent                      Time reported             state Outcome       Client state     CPU time    claimed  granted
1025067586  4321482   17 Oct 2008 4:33:38 UTC   20 Oct 2008 1:45:37 UTC   Over  Success       Done             179,888.40  753.71   753.71
[color=green]1060060578  4473530   16 Nov 2008 12:32:59 UTC  26 Nov 2008 23:56:17 UTC  Over  Success       Done             388,264.20  759.98   [b]0.00[/b][/color]
1025067587  4102332   17 Oct 2008 4:33:15 UTC   17 Oct 2008 10:28:54 UTC  Over  Client error  [color=red]Aborted by user  0.00        7.46     7.46[/color]
1025487706  4625392   17 Oct 2008 12:32:49 UTC  21 Nov 2008 7:20:17 UTC   Over  Success       Done             160,143.70  754.07   753.71[/size]

I'm not quite sure how this works, but I suppose the result will go through the
validator and that will then grant the credit due, even though the others did get
credit (even the aborted one...)
I hope someone from the coding team reads this message and gives a quick heads up
on how this whole algorithm is supposed to work :)

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Robi

I just noticed something else!
My result 1060060578 claims to be invalid while Result 1025067586 from the same WU is valid!
The only difference I see in the stderr out message are several

No heartbeat from core client for 30 sec - exiting

lines in my result (and the time, but the claimed credit seems to be around the same +/-)

I really would like some input to this.

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Robi