First Signs of the NTPCkr


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Profile Dr. C.E.T.I.
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Message 840193 - Posted: 15 Dec 2008, 13:01:21 UTC



. . . from Matt Message boards : Technical News : Go Gone Green (Dec 08 2008) <--- click me

<snipped>



Jeff's been doing some NTPCkr testing that would have gone all through the weekend except the excess I/O ate up all the informix threads, thus causing the splitters/assimilators to slow down and run out of work to send. Luckily I caught this before bedtime that night and broke that dam. Jeff's looking into why that happened.




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Message 840334 - Posted: 15 Dec 2008, 23:06:23 UTC - in response to Message 839831.

And I remember a time when Matt said there was a danger of running out of work. Why work on the analysis of the data when they can spend their time with a new CUDA project that will crunch data 3X faster - data that still won't be analyzed.


That picture is priceless. Thanks, Misfit, you're the best. :)

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Message 849774 - Posted: 5 Jan 2009, 18:56:59 UTC

it needs a boarder to separate the contrast or be larger for with bad eyes :)

http://setiathome.berkeley.edu/sci_status.html
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Message 849953 - Posted: 6 Jan 2009, 2:18:51 UTC

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Message 855468 - Posted: 19 Jan 2009, 19:35:24 UTC

This is really cool! I'm sorry I overlooked it before. I also love the Current Telescope Sky Position google map.

I don't mind paying for the extra $$ while my computer runs "idle".
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Message 860569 - Posted: 1 Feb 2009, 5:54:13 UTC

So speaking of "unanalysed data" how about a NTPCkr update?
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Message 864167 - Posted: 10 Feb 2009, 23:36:56 UTC - in response to Message 860569.

Quick update:

The "plumbing" is pretty much done, though there are minor tweaks happening every day here and there. It's pretty much ready for internal beta, but before we do that we'll probably have another meeting to discuss some basic first rev of scoring. Next week or two?

Even if we do start running it today there's massive database cleanup that has to happen first before we can run it against *all* data. Still, we can start right away on a subset (about 20%?) of our data and add more as we clean it up.

Doesn't sound like much has changed since this original post, but it has. Slow progress. I'm really hoping we can it going enough to start creating daily updated plots, web pages, visualization tools, etc. for the general public before May. Even better would be churning through enough data to have enough final products to write some papers (perhaps of the nature: we looked at N pixels and saw X things, and how this falls in line with statistical probability). Why May? That's our 10th anniversary.

- Matt


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Message 864209 - Posted: 11 Feb 2009, 1:57:01 UTC - in response to Message 864167.

Message 743622 - Posted 24 Apr 2008 17:41:02 UTC

More news as we progress, I guess...

Slow progress ... Why May? That's our 10th anniversary.

A little ahead of schedule and it'll be your first anniversary of this thread.

I dare ask the question. Will NTPCkr work with SETI and Astropulse or SETI only?
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Message 867171 - Posted: 19 Feb 2009, 21:12:54 UTC

From Matt's Tech News for 2/19:

Late last week Eric, Jeff and I had a quick meeting to discuss current candidate scoring algorithms - we're pretty sure we'll have to tweak them as we go, but we're in enough agreement to get started implementing this part of the NTPCker. Jeff's been all over that this week. I'm just now turning my focus back to actual development, too. My software radar blanker now agrees with the hardware blanker 90% of the time, which is a very good start. I can add an additional 5% just by adjusting thresholds, but the real test is to run software blanked data through the pipeline and see which workunits generate more RFI (the ones using hardware blanking or the ones using software blanking).

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Message 871841 - Posted: 3 Mar 2009, 23:53:37 UTC

Update:

From Kersey (Mar 03 2009)

Helped Jeff walk through NTPCkr code this morning, tracking down bugs, etc. In essence the goal of this program is simple - to find groups of signals in our data that fall within a certain window of frequency/space but have been seen over multiple observations, and preferably near stars/planets. But it's actually quite complicated - there's a lot of set analysis/manipulation requiring chunks of dense code where bugs can hide if you're not careful. Plus there are always new "special cases" we find (or dream up before we find them) that we need to consider. In any case, we're pressing to get this thing rolling and producing non-zero results before the 10 year anniversary of the SETI@home launch in May.

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Message 871883 - Posted: 4 Mar 2009, 2:01:47 UTC - in response to Message 867171.

From Matt's Tech News for 2/19:

Late last week Eric, Jeff and I had a quick meeting to discuss current candidate scoring algorithms - we're pretty sure we'll have to tweak them as we go, but we're in enough agreement to get started implementing this part of the NTPCker. Jeff's been all over that this week. I'm just now turning my focus back to actual development, too. My software radar blanker now agrees with the hardware blanker 90% of the time, which is a very good start. I can add an additional 5% just by adjusting thresholds, but the real test is to run software blanked data through the pipeline and see which workunits generate more RFI (the ones using hardware blanking or the ones using software blanking).

Of course there is a lot of data that was collected (yearS worth) before the radar problem. Certainly that can be analyzed now while the radar problem is being worked out.
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Message 907789 - Posted: 15 Jun 2009, 9:00:13 UTC

. . . clears throat - uhmmmm, any News to Post here?

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Message 907881 - Posted: 15 Jun 2009, 17:14:19 UTC - in response to Message 907789.

. . . clears throat - uhmmmm, any News to Post here?

Yes of course. No news is good news.
ET's ground up redesign committee has it covered. They know exactly how long to wait before they reveal the next bug. ;)

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Message 907957 - Posted: 15 Jun 2009, 20:38:02 UTC - in response to Message 907789.

Necromancing for no news.
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Message 923496 - Posted: 4 Aug 2009, 0:24:43 UTC

WHEN will the Nitpicker been released??? It schould happened half a mounth ago.

Chris
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Message 923633 - Posted: 4 Aug 2009, 23:27:19 UTC
Last modified: 6 Aug 2009, 0:45:59 UTC

Update from 8/4 Matt's Tech News:

People asked about the NTPCkr pages. Oh yeah.. That.. Jeff and I were pushing on those last month, then I disappeared on vacation, and then we both were at the OSCON in San Jose, and then the new replica server finally started working so that's been occupying our time, along with scrounging data together to process. Sorry about the delays. I know we're close to publishing something. This is kind of an important addition to the web site so we want to make it kinda works before embarrassing ourselves with broken/misleading information.

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Message 923868 - Posted: 5 Aug 2009, 21:33:30 UTC

When the the NTPCkr will scan the data in realtime, how will the 2004-2009 data been analysed (radar, ect.)?
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Message 923960 - Posted: 6 Aug 2009, 0:44:04 UTC - in response to Message 923868.

When the the NTPCkr will scan the data in realtime, how will the 2004-2009 data been analysed (radar, ect.)?


Chris--the details are not available yet but I will ask them to post when they are.
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Message 923961 - Posted: 6 Aug 2009, 0:45:35 UTC

Update from 8/5 Matt's Tech News:

NTPCkr: Jeff and I met this morning to discuss the current status of what we need to do to get this thing on line. To be clear, Jeff has been doing pretty much all the work on the NTPCkr engine, and I've been helping with the cosmetic/web stuff. Anyway, Jeff has a couple bugs to clear up. Nothing major - things like the reporting mechanism sometimes spits out the same candidate twice. I've been working on web site stuff, like putting in all the hooks to allow people to discuss candidates amongst themselves on a separate forum. Once we clear up our current set of bugs/updates I'll fire up a daily cronjob which will (a) generate the current "top ten" list, (b) pull all the data from the science database from these candidates (if not already on disk) for plotting purposes, and (c) create discussion threads for each candidate (if they don't already exist). Then we're live, but we'll have many "version 2.0" tasks to address right away.

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Message 924180 - Posted: 6 Aug 2009, 21:08:58 UTC

Being in topic...


How will the persistency of AP (Astropulse) - "Signals" been showed??

Greetings, Chris
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