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Pappa Send message Joined: 9 Jan 00 Posts: 2562 Credit: 12,301,681 RAC: 0 |
No it does not mean we are starting over. It means that in spite of "best effort" (software/splitter wise) there are a few that are just to noisy to work with. Those are marked as they are stored in the database, that gives Seti an idea of the holes in the data. Work has been down so that as we receive more fresh data that during the times that the radar is operating it shuts the receiver down and/or marks the data. Does your explanation mean that all the wu's we have processed thus far are, in one way or another, corrupted due to unexpected noise and possibly not valid? And if so, is this why nothing has been done with all the work we have contributed over the last couple of years? Are we, in effect, starting over? Please consider a Donation to the Seti Project. |
PhonAcq Send message Joined: 14 Apr 01 Posts: 1656 Credit: 30,658,217 RAC: 1 |
I didn't understand your second sentence. Inferring from the first, it seems that one result thus far is a map of where we have bad data. I assume that means that we also have a map of good data and one of no-data. Has there been any other result? |
Speedy Send message Joined: 26 Jun 04 Posts: 1643 Credit: 12,921,799 RAC: 89 |
On the server status page the progress display of the splitter queue has changed to a solid bar from the previous seperate block for each beam pair done. If possible it would also be nice to see a % done indicator, as I & other’s by the sound of it find it hard to follow the progress of beam/polarization pair in progress & completed beam/polarization pair. We all know how busy you all are, keep up the great work, all your great work is much appreciated. Tankyou all. |
Pappa Send message Joined: 9 Jan 00 Posts: 2562 Credit: 12,301,681 RAC: 0 |
For a clearer understanding Jeff Cobb wrote this Scientific Newsletter - July 9, 2007 about the radar problem that was causing noisy WU's. It also has a reference to Eric's post. As far as a map of what has been recorded at a point in time I thought Matt was working on a map Preview of Sky maps the data still had to be inserted manually. So a noisy "Result" probably will not show, it is just a vacant space. If they are worried about tracking down points that had bad data, I would think that it is only the matter of a database query. I didn't understand your second sentence. Inferring from the first, it seems that one result thus far is a map of where we have bad data. I assume that means that we also have a map of good data and one of no-data. Has there been any other result? Please consider a Donation to the Seti Project. |
Josef W. Segur Send message Joined: 30 Oct 99 Posts: 4504 Credit: 1,414,761 RAC: 0 |
Does your explanation mean that all the wu's we have processed thus far are, in one way or another, corrupted due to unexpected noise and possibly not valid? And if so, is this why nothing has been done with all the work we have contributed over the last couple of years? Are we, in effect, starting over? Not at all. As of 5 Jan 2008 3:50:21 UTC, the Overflow rate is 3.5% meaning 96.5% of the results entered in the last ten minutes did not overflow. The radar only interferes when it happens to be pointing toward the telescope and it is active. There's an arrangement for the radar to be cut off when it's pointing toward the telscope if the primary observation would be affected, but since the multibeam recorder is piggybacking on others' activities that is only in effect sometimes. OTOH, until proven otherwise all signals we've reported are almost certainly due to noise. Those have added up to about 1.4 billion possible signals entered in the Master Science Database. We've reduced many Terabytes of raw data to that extent, and we hope that further analysis and reobservation may prove that there's at least one technological civilization out there sending a signal we can detect by this means. Joe |
Speedy Send message Joined: 26 Jun 04 Posts: 1643 Credit: 12,921,799 RAC: 89 |
The Technical News page is working fine now |
kittyman Send message Joined: 9 Jul 00 Posts: 51477 Credit: 1,018,363,574 RAC: 1,004 |
The Technical News page is working fine now Well.... The forum page response time is not working fine.......... Is this what we are stuck with?????? Been this way for the last couple of days.......... EDIT....... Took almost 2 minutes just to make this post to complain about it to respond from the servers...... "Time is simply the mechanism that keeps everything from happening all at once." |
KWSN THE Holy Hand Grenade! Send message Joined: 20 Dec 05 Posts: 3187 Credit: 57,163,290 RAC: 0 |
The Technical News page is working fine now Hmm, some discrepancy here, as I'm not seeing any slow response. (or any slower than normal response, given that I'm typing this on a dial-up line...) . Hello, from Albany, CA!... |
kittyman Send message Joined: 9 Jul 00 Posts: 51477 Credit: 1,018,363,574 RAC: 1,004 |
The Technical News page is working fine now Oooohhhh, a dial-up warrior....bless you my son. Response is better ATM, but I wonder if the decommissioning of bane from a web server to a download server is gonna keep vexing the webpage response. For us broadband guys anyway...... "Time is simply the mechanism that keeps everything from happening all at once." |
JLDun Send message Joined: 21 Apr 06 Posts: 573 Credit: 196,101 RAC: 0 |
Oooohhhh, a dial-up warrior....bless you my son. Maybe I should rename my team The Dial-up Road Warriors and invite all other Dial-up users to join. [:-)~ |
Kim Vater Send message Joined: 27 May 99 Posts: 227 Credit: 22,743,307 RAC: 0 |
I sure agree with "msattler" about the painstaking slow webpages ;-( Pinging "setiathome.berkeley.edu" is 200ms, which is normal from here in Norway - but surfing around in forums and statpages, the responcetime is 2 - 5 seconds. Sometimes much longer. Been like that for a couple of days. Also - when looking at ScareCrow graphs: http://bluenorthernsoftware.com/scarecrow/sahstats/48.html and looking at "In Progress" graph (Results out in the field), it looks like there is a 3 million limit! ?? That 48hr graph has never been that "flat" or steady as it apears now! Regards Kim Greetings from Norway Crunch3er & AK-V8 Inside |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14671 Credit: 200,643,578 RAC: 874 |
I sure agree with "msattler" about the painstaking slow webpages ;-( The forums are certainly slow: I hope it's not because the 'tinkerman' (David Anderson) has been tinkering with the web page code again. But I don't agree with Kim Vater: look at any of Scarecrow's graphs for 7 days or more, and you'll see peaks and troughs for 'Results out in the field', with the peaks well above three million. Instead, I think it's proof that the new splitter policy (work on many 'tapes' in parallel) is having a very beneficial effect in smoothing out the workflow: no more "shorty storms". |
kittyman Send message Joined: 9 Jul 00 Posts: 51477 Credit: 1,018,363,574 RAC: 1,004 |
Matt, Eric...... A big thumbs up for the decision to split multiple datasets concurrently!!! Don't know if my suggestions to do so put a bug in yer ear or if you came with it on your own, but way to go guys! The system seems a lot happier having some longer WUs in the mix for the crunchers to work on while the shorties are being dealt with. Excellent choice. "Time is simply the mechanism that keeps everything from happening all at once." |
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