Monday (Oct 22 2007)


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Message boards : Technical News : Monday (Oct 22 2007)

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Profile Matt Lebofsky
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Message 664665 - Posted: 22 Oct 2007, 22:34:00 UTC

Post weekend update: Things have been running relatively smoothly over the past week. Bob, Jeff, and I got a few more warm fuzzies from the science database replica server today - we were able to stop/restart both sides without having to reinstall the whole database from scratch! I updated some splitter maintenance code, so that's why all the green dots disappeared from the server status page. I'll fix that eventually. But most of the day was spent working on swapping out a motherboard from a giant 4-processor Xeon server donated from Intel (and they donated the spare motherboard, too). This was the machine called "bane" that months ago I converted into a public web server and then after a week it crashed. Upon powering up it would beep out a cryptic error message and that was it. So I spent half the day today swimming in thermal grease (replacing heat sinks), unplugging, unscrewing, replugging, rescrewing, and scraping my fingers and arms on sharp metal things until the new motherboard was in place. Sure enough, same beeps. Sigh. These are used test systems, so there was no guarantee they'd work.

- Matt

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Message 664681 - Posted: 22 Oct 2007, 23:10:29 UTC - in response to Message 664665.

.... Upon powering up it would beep out a cryptic error message ....

I wonder whether Intel could be prevailed upon to donate a babel-fish (aka manual) that could guide you further? Those beep codes can usally be de-crypted and would give you some idea which sub-section of the system is b******d - it might even be something stupid like a bad stick of RAM.

Alternatively, post the model number for the motherboard and an MP3 of the beeps, and we'll google it for you.

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Message 664685 - Posted: 22 Oct 2007, 23:15:04 UTC - in response to Message 664681.

Alternatively, post the model number for the motherboard and an MP3 of the beeps, and we'll google it for you.

"It's 'The beeping SETI server'! I love that song!"
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Profile William Rothamel
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Message 664695 - Posted: 22 Oct 2007, 23:41:22 UTC - in response to Message 664685.
Last modified: 22 Oct 2007, 23:43:34 UTC

Alternatively, post the model number for the motherboard and an MP3 of the beeps, and we'll google it for you.

"It's 'The beeping SETI server'! I love that song!"


Hey There--I read this morning that the PLAYSTATION now being sold can do 200 Billion operations per sec--This seems to be 50 to 100 times what my Duo core intel MAC can do. Additionally it has seven auxiliary processors. It is reputedly sold below cost . Sooooo can we run an operating system on this PLAYSTATION that runs native mode Windows or LINUX SO THAT SETI can chug along at an increased pace? I can't imagine that this hasn't been discussed elsewhere.

Regards,

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Message 664715 - Posted: 23 Oct 2007, 0:03:50 UTC - in response to Message 664695.
Last modified: 23 Oct 2007, 0:05:17 UTC

Hey There--I read this morning that the PLAYSTATION now being sold can do 200 Billion operations per sec--This seems to be 50 to 100 times what my Duo core intel MAC can do. Additionally it has seven auxiliary processors. It is reputedly sold below cost . Sooooo can we run an operating system on this PLAYSTATION that runs native mode Windows or LINUX SO THAT SETI can chug along at an increased pace? I can't imagine that this hasn't been discussed elsewhere.

You can already run Linux on the PS3. There are already BOINC projects that use its power: PS3GRID.

Running SETI on the PS3 wouldn't give you any speedup compared to a normal computer. Lots of its code would need to be rewritten to take advantage of the SPEs and other parts of the strange but powerful Cell architecture.

EDIT: You won't be running Windows on it anytime soon. It's probably a lot easier to get OS X on it than Windows.
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Message 664839 - Posted: 23 Oct 2007, 4:32:13 UTC - in response to Message 664665.

Post weekend update: Things have been running relatively smoothly over the past week. Bob, Jeff, and I got a few more warm fuzzies from the science database replica server today - we were able to stop/restart both sides without having to reinstall the whole database from scratch! I updated some splitter maintenance code, so that's why all the green dots disappeared from the server status page. I'll fix that eventually. But most of the day was spent working on swapping out a motherboard from a giant 4-processor Xeon server donated from Intel (and they donated the spare motherboard, too). This was the machine called "bane" that months ago I converted into a public web server and then after a week it crashed. Upon powering up it would beep out a cryptic error message and that was it. So I spent half the day today swimming in thermal grease (replacing heat sinks), unplugging, unscrewing, replugging, rescrewing, and scraping my fingers and arms on sharp metal things until the new motherboard was in place. Sure enough, same beeps. Sigh. These are used test systems, so there was no guarantee they'd work.

- Matt


Matt - Thanks for the Update Sir! It's such a Pleasure comin' in here to see what's up @ Berkeley . . . PS - Nice Work by All the others too . . .




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Profile Andy Lee Robinson
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Message 664898 - Posted: 23 Oct 2007, 7:26:45 UTC - in response to Message 664665.

Sure enough, same beeps.


Ah! I see you have a machine that goes "beep"!

Every serious project should have one...

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Message 664907 - Posted: 23 Oct 2007, 7:44:38 UTC - in response to Message 664898.

Sure enough, same beeps.

Ah! I see you have a machine that goes "beep"!
Every serious project should have one...

But the high-budget ones have a machine that goes “ping”.

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Message 664982 - Posted: 23 Oct 2007, 9:29:24 UTC - in response to Message 664907.

Sure enough, same beeps.

Ah! I see you have a machine that goes "beep"!
Every serious project should have one...

But the high-budget ones have a machine that goes “ping”.


:-)
Well, S@H had a machine that went “ping”, but now goes “beep”.
The project won’t be complete until restored to former functionality.

Actually, the real reason we’re looking for ET is to recover the original
machine that went ping, since they stole it because there was a hidden
message in the timings of the ping mechanism...

Profile Keith T.
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Message 665026 - Posted: 23 Oct 2007, 11:00:34 UTC - in response to Message 664665.
Last modified: 23 Oct 2007, 11:03:27 UTC

...
I updated some splitter maintenance code, so that's why all the green dots disappeared from the server status page. I'll fix that eventually. ...

- Matt


How about splitting the splitter history into something like http://seticlassic.ssl.berkeley.edu/calendar/calendar.html ? Keith

[edit]
could you also take a look at http://setiathome.berkeley.edu/client_types.php as well sometime please ?

Profile KWSN THE Holy Hand Grenade!
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Message 665174 - Posted: 23 Oct 2007, 20:03:36 UTC - in response to Message 665026.
Last modified: 23 Oct 2007, 20:04:35 UTC


[edit]
could you also take a look at http://setiathome.berkeley.edu/client_types.php as well sometime please ?


I SECOND THE MOTION! ;-)

Seriously, the clients types script has been out of whack for at least a month...

(and a whack upside the head is what the script needs... :-) )
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