Why Why Why (Apr 24 2007)

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Profile Matt Lebofsky
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Message 552401 - Posted: 24 Apr 2007, 20:46:32 UTC

The public web sites were running a bit slow I think in part because the old cvsweb.cgi was choking and hanging on the BOINC source tree, which is now kept under subversion. I'll deal with this at some point.

The validator/assimilators queues drained very quickly as noted yesterday, but the splitters were still unable to gather resources to create enough work to send out. I repeat: this isn't really a problem as no BOINC project guarantees work 24/7. In any case, we're still working on it.

Had the regular outage today which was fine except the replica won't start and I don't know why. Bob usually handles this but he's out of the office. Actually, the replica starts but thinks it's caught up when it isn't and all the "reset slaves" in the world don't seem to change its mind.

I'm frustrated - can't sit by my computer anymore. I'm gonna go into the closet and start labeling cables.

- Matt

-- BOINC/SETI@home network/web/science/development person
-- "Any idiot can have a good idea. What is hard is to do it." - Jeanne-Claude
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Message 552409 - Posted: 24 Apr 2007, 21:02:44 UTC

Don`t worry about the work. I bet most of the Users are also crunching for other projects.

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Message 552425 - Posted: 24 Apr 2007, 21:20:32 UTC

Sorry to hear about the problems Matt. But thank you for the updates regardless. Crunchers have 2 choices really, get over the fact that it will be hard to get work here, or crunch for more projects.

Even better, for those that don't have a backup project, should join us over at BETA, and help out there. The more that help test apps and find errors, the better off the app will be when it comes here to main.
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Message 552466 - Posted: 24 Apr 2007, 22:12:33 UTC

Thanks for the updates.

I've taken to suspending SETI on those computers I can access on Monday night or Tuesday morning anyway -- plenty of other projects to keep them busy. Then I wait until Tuesday night (or later depending on SETI status) before 'un-suspending' SETI.

These days it means that Rosetta and World Grid get a 24 to 48 hour boost and then settle back down.


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Message 553023 - Posted: 25 Apr 2007, 3:08:50 UTC - in response to Message 552466.  

Thanks for the updates.

I've taken to suspending SETI on those computers I can access on Monday night or Tuesday morning anyway -- plenty of other projects to keep them busy. Then I wait until Tuesday night (or later depending on SETI status) before 'un-suspending' SETI.

These days it means that Rosetta and World Grid get a 24 to 48 hour boost and then settle back down.


Is there some reason that you are going to the trouble to do a manual suspend? I just let mine figure out how to deal with outage.


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Message 553080 - Posted: 25 Apr 2007, 3:34:28 UTC - in response to Message 552401.  

I'm gonna go into the closet

versus the other way around?
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Message 553084 - Posted: 25 Apr 2007, 3:34:57 UTC
Last modified: 25 Apr 2007, 3:35:14 UTC


I'm frustrated - can't sit by my computer anymore. I'm gonna go into the closet and start labeling cables.


That´s what I did last week - now every cable is just perfectly routed and labeled and I have to go back to the frustrating work... ;(

mic.


mic.


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Message 553354 - Posted: 25 Apr 2007, 12:41:26 UTC - in response to Message 552401.  
Last modified: 25 Apr 2007, 12:44:01 UTC

Matt,
Bad timing on the Arecibo maintenance shutdown, eh? I suspect that, once it does come back online, the SETI staff will want to point it at Gliese 581 to take a special reading of the region around the possible "Class M" planet just discovered. Or, if you have already scanned that region, it would seem that this segment of data should warrant intense scrutiny.

Although such a finding had been almost certainly only a matter of time, the moment of arrival is still worth celebration.

I, for one, would certainly appreciate a SETI staff posting about this scientifically astronomical (pardon my pun) discovery.

Oh, and our heartfelt thanks to the people of the European Southern Observatory for discovering Gliese 581 c!
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Message 553414 - Posted: 25 Apr 2007, 15:23:48 UTC - in response to Message 553354.  

Bad timing on the Arecibo maintenance shutdown, eh? I suspect that, once it does come back online, the SETI staff will want to point it at Gliese 581 to take a special reading of the region around the possible "Class M" planet just discovered. Or, if you have already scanned that region, it would seem that this segment of data should warrant intense scrutiny.


Sadly Arecibo can't see Gliese 581; its declination is around -7.75 degrees and the lowest Arecibo can go is about -1.3 degrees.
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Message 553415 - Posted: 25 Apr 2007, 15:29:35 UTC - in response to Message 553414.  
Last modified: 25 Apr 2007, 15:32:13 UTC

Bad timing on the Arecibo maintenance shutdown, eh? I suspect that, once it does come back online, the SETI staff will want to point it at Gliese 581 to take a special reading of the region around the possible "Class M" planet just discovered. Or, if you have already scanned that region, it would seem that this segment of data should warrant intense scrutiny.


Sadly Arecibo can't see Gliese 581; its declination is around -7.75 degrees and the lowest Arecibo can go is about -1.3 degrees.

Wasn't there some talk of using a Southern Hemisphere telescope to extend the search?

Since you've got a spare data recorder sitting on the shelf (for the next three months at least, during the paint job), would it be worth a look?

Edit - cost implications, of course, but just making the offer during the current news interest might tickle some sponsor's fancy. Newsworthy.
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Message 553418 - Posted: 25 Apr 2007, 15:45:50 UTC - in response to Message 553023.  

Mostly a case of frustration with the inability to report and get work in a timely fashion. But also, a rationalization that if SETI is in 'struggle mode' reducing the workload for it by suspending activities (including downloads and uploads) won't hurt the project. And as I noted, there are plenty of other projects out there. I have joined a total of 6 projects and typically run 3 or 4 on any workstation. The thing is, invariably one of the other projects can run into its own difficulties at another time, when SETI is running well, so I'll 'return the favor' at that time.


Is there some reason that you are going to the trouble to do a manual suspend? I just let mine figure out how to deal with outage.


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Message 553430 - Posted: 25 Apr 2007, 16:27:35 UTC - in response to Message 553354.  

I suspect that, once it does come back online, the SETI staff will want to point it at Gliese 581 to take a special reading of the region around the possible "Class M" planet just discovered.

Actually, the SETI folks don't really get to "point" very often. Mostly, other scientists "task" the telescope, it points where it points, and several projects get what they get.

The only time SETI gets to say "please look here" is when they have a signal that is really, really promising.

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Message 553458 - Posted: 25 Apr 2007, 17:53:34 UTC - in response to Message 553354.  

the SETI staff will want to point it at Gliese 581 to take a special reading of the region around the possible "Class M" planet just discovered.


Gliese 581 is too far south and thus too far off-axis of the fixed spherical dish. If it were possible to adjust the secondary and tertiary antennas to try to get to that Gliese, reception would probably be lousy - something analogous to trying to use a 35mm camera lens to take pictures on a 6x6cm format film or CCD. The area outside of the 35mm area (where Gliese would, figuratively, be) would be all blurry.

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Message 553468 - Posted: 25 Apr 2007, 18:16:51 UTC - in response to Message 553415.  

Bad timing on the Arecibo maintenance shutdown, eh? I suspect that, once it does come back online, the SETI staff will want to point it at Gliese 581 to take a special reading of the region around the possible "Class M" planet just discovered. Or, if you have already scanned that region, it would seem that this segment of data should warrant intense scrutiny.


Sadly Arecibo can't see Gliese 581; its declination is around -7.75 degrees and the lowest Arecibo can go is about -1.3 degrees.

Wasn't there some talk of using a Southern Hemisphere telescope to extend the search?

Since you've got a spare data recorder sitting on the shelf (for the next three months at least, during the paint job), would it be worth a look?

Edit - cost implications, of course, but just making the offer during the current news interest might tickle some sponsor's fancy. Newsworthy.


I think that if the funding is supplied and that the approval is given, Why not? What about the Allen Telescope Array?
"By faith we understand that the universe was formed at God's command, so that what is seen was not made out of what was visible". Hebrews 11.3

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Message 553493 - Posted: 25 Apr 2007, 19:28:33 UTC

Dear Peoples,
How's it going? I have noticed something that may give you another symptom that may help you with the work unit creation problem. I repaired TVs and other electronics for 25 years, and know that every symptom can lead to a repair by implicating different areas.
Anyhow, I have noticed for the past 4 or 5 days that results usually upload on the first try, reporting units ready to report may take 5 or 10 tries before they go through [keep getting cannot connect/find hostserver] and nothing has been downloaded in that time frame. However, when I look at the "My Computers" page it states that I have 150 units being worked on with one computer and 52 on the other computer [I have 2 hosts]. One has 2 work units and the other 3 work units, NOT 150 units and 52 units. If it says I have 200 units that do not exist on my computer, that is 200 units marked as sent and in use that are neither. Multiply this by all the members, and you have a ton of work units lost in limbo somewhere. It appears that every time I try to connect, it thinks it has sent another workunit or 2 or 3. But they were not sent. I hope that maybe this information helps in resolving the work unit problem.
Have a Good One! Love, Peace and Perception

Wizard2468
www.MS-O.com

Love, Peace and Perception
Wizard2468
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Message 553520 - Posted: 25 Apr 2007, 20:24:51 UTC - in response to Message 553493.  
Last modified: 25 Apr 2007, 20:39:36 UTC

<this message snipped>
No idea what happened there; I'm sure I originally clicked
on Edit, but it spawned a new message...
[I have trouble with edit windows, my hands are hard-wired for
a TAB at the start of each paragraph; edit windows seem to subvert
TAB to "go to the next <something>"]

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Message 553521 - Posted: 25 Apr 2007, 20:24:51 UTC - in response to Message 553493.  
Last modified: 25 Apr 2007, 20:28:36 UTC

Anyhow, I have noticed for the past 4 or 5 days that results usually upload on the first try, reporting units ready to report may take 5 or 10 tries before they go through [keep getting cannot connect/find hostserver] and nothing has been downloaded in that time frame. However, when I look at the "My Computers" page it states that I have 150 units being worked on with one computer and 52 on the other computer [I have 2 hosts]. One has 2 work units and the other 3 work units, NOT 150 units and 52 units. If it says I have 200 units that do not exist on my computer, that is 200 units marked as sent and in use that are neither. Multiply this by all the members, and you have a ton of work units lost in limbo somewhere. It appears that every time I try to connect, it thinks it has sent another workunit or 2 or 3. But they were not sent. I hope that maybe this information helps in resolving the work unit problem.

Have you looked at the workunits by clicking on the number reported? There
is some history, so while it might may say 50 units, perhaps (in my case) 10
of these are current, the rest are returned and either credited or awaiting
credit. I don't know what the criteria are for dropping older units off the list.



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Message 553533 - Posted: 25 Apr 2007, 20:42:10 UTC

Hi Matt,

I drop by every now and then to read what has been happening and always wonder what ever happened to the plans to extend SETI@Home to the southern hemisphere, specifically, utilising data from the Parkes Telescope in Australia. I understand they have a multibeam receiver and do some basic signal checking on site, but what about the deeper analysis that can be done via this project? Is Parkes sensitive enough to utilise the data from it? I know during the classic days there was a plan to utilise the data, whatever happened?

Best regards,
Paul
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Message 553535 - Posted: 25 Apr 2007, 20:45:02 UTC - in response to Message 553415.  


Wasn't there some talk of using a Southern Hemisphere telescope to extend the search?

Since you've got a spare data recorder sitting on the shelf (for the next three months at least, during the paint job), would it be worth a look?

Edit - cost implications, of course, but just making the offer during the current news interest might tickle some sponsor's fancy. Newsworthy.

Parkes has been discussed, IIRC.

... but I suspect that all of these sites are pretty much unique, so you wouldn't be able to unplug a data recorder, ship it to another telescope and just plug it in -- then ship it back once Arecibo is repainted.
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Message 553547 - Posted: 25 Apr 2007, 21:12:08 UTC - in response to Message 553493.  

Dear Peoples,
How's it going? I have noticed something that may give you another symptom that may help you with the work unit creation problem. I repaired TVs and other electronics for 25 years, and know that every symptom can lead to a repair by implicating different areas.
Anyhow, I have noticed for the past 4 or 5 days that results usually upload on the first try, reporting units ready to report may take 5 or 10 tries before they go through [keep getting cannot connect/find hostserver] and nothing has been downloaded in that time frame. However, when I look at the "My Computers" page it states that I have 150 units being worked on with one computer and 52 on the other computer [I have 2 hosts]. One has 2 work units and the other 3 work units, NOT 150 units and 52 units. If it says I have 200 units that do not exist on my computer, that is 200 units marked as sent and in use that are neither. Multiply this by all the members, and you have a ton of work units lost in limbo somewhere. It appears that every time I try to connect, it thinks it has sent another workunit or 2 or 3. But they were not sent. I hope that maybe this information helps in resolving the work unit problem.
Have a Good One! Love, Peace and Perception

Wizard2468
www.MS-O.com

I have been having the same problems myself.
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