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Profile sqbell

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Message 14896 - Posted: 9 Aug 2004, 7:11:27 UTC

Wonder how manu WU's this machine is able to crunch in one minute.. :-)

http://news.bbc.co.uk/1/hi/technology/3532706.stm
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Message 14899 - Posted: 9 Aug 2004, 7:40:50 UTC - in response to Message 14896.  

> Wonder how manu WU's this machine is able to crunch in one minute.. :-)

In one minute? none... but give it a couple of hours and it will turn in 10,240 :)

mmmmmmmmmm

And just think of all the star trek those 500 TB could hold!



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Message 14901 - Posted: 9 Aug 2004, 8:00:01 UTC
Last modified: 9 Aug 2004, 8:21:58 UTC

I am not a specialist in supercomputing but here what I think.
If I am wrong I will soon be corrected...

This arcticle does not specify how many TeraFlops this machine
is capable of. I have made a web search but didn't find it.

The most powerfull supercomputer currently in activity is the
earth simulator located in Japan. It has a power of 35 TeraFlops
(35 Trillions arithmetical operations per second).

I am not sure about that but I think a SETI WU needs about 5 TeraFlops
of calculation. In theory the earth simulator could process one SETI
WU in 35/5 = 7 1/7 = O.142 seconds

Like I said this is theory. In practice It wouldn't work that way because
these supercomputers are connected into clusters. The way it works you
have a kind of commander computer that split and distribute works to
other computers (Nodes) and wait for results. Again I am not sure but
I think SETI can't work using clusters computer. You could still use
each nodes as a client and achieve spectacular performance.

IBM is currently working on its new ASCI supercomputer and it will have
360 TeraFlops. The new NASA supercomputer could well be in that range so
to make a long story short and finaly answer your question it would takes
360/5=72 1/72= 0.013 seconds

13 ms (in theory)

Impressive nubers compare to our home toys...

Regards
Marc


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Message 14906 - Posted: 9 Aug 2004, 8:07:47 UTC

1 WU in 0.013 seconds.. so in one minute it will be able to compute 4615 work units.. nice.. :)
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Message 14908 - Posted: 9 Aug 2004, 8:14:32 UTC - in response to Message 14906.  
Last modified: 9 Aug 2004, 8:19:49 UTC

> 1 WU in 0.013 seconds.. so in one minute it will be able to compute 4615 work
> units.. nice.. :)
>

NO

360 / 5 = 72 Work units per second

72X60= 4320 WU per minutes

1/72 = 0.013888888888888 second to complete one WU

EDIT it's still nice...

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Message 14911 - Posted: 9 Aug 2004, 8:41:13 UTC - in response to Message 14901.  
Last modified: 9 Aug 2004, 8:44:02 UTC

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I give up, what's the seventh character (.-.-.)?

Now, as for the original question - it's a trick question, right?

Obviously, the correct answer is 50 - 50 in a minute, 50 in an hour, 50 in a day - because as soon as it finishes those 50, Berkeley is going to tell it that it has exceeded the daily quota and not give it any more units anyway :o)


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Message 14913 - Posted: 9 Aug 2004, 8:47:08 UTC - in response to Message 14911.  
Last modified: 9 Aug 2004, 8:48:46 UTC

> I give up, what's the seventh character (.-.-.)?


LOL
AR (end of message/transmition)
Actually I will put it at the end...



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Message 14914 - Posted: 9 Aug 2004, 8:59:55 UTC
Last modified: 9 Aug 2004, 9:00:52 UTC

@Darren

I have rearange it the way it would really be


EDIT; OUPS !
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Petit Soleil
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Message 14918 - Posted: 9 Aug 2004, 9:16:52 UTC

@Darren

OK now but for some reason it doesn't take double space
into account. Witch makes it harder to decode.

Now its XXXXXXXXXXXX
but should be XX XX X XX XX X X X



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Message 14919 - Posted: 9 Aug 2004, 9:18:42 UTC

Well after I wrote my first post I did some searching. It seems an Itanium 2 can do a seti@home classic work unit (don't know about BOINC) in about 1.5 hours. If you ahve 10,240 I2s (each would have to be running its own copy of the client) then that would give you 10,240 work units every 90 minutes which workes out to 113.7wu/min. Definitely something I wouldn't mind having crunching for me although the power bill would be... uh... 'out of this world' :) Nitpickers: I know this doesn't take into account additional system overhead from clustering and ignores some other issues alltogether so just shut up, smile and nod. :p

Well, I think we have proved that we are a bunch of nerds now. Time for bed!




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Message 14927 - Posted: 9 Aug 2004, 9:40:51 UTC - in response to Message 14919.  

> Well after I wrote my first post I did some searching. It seems an Itanium 2
> can do a seti@home classic work unit (don't know about BOINC) in about 1.5
> hours.

lol
Witch Itanium ? The one with 2 4 or 8 Mb of cache....
I've just signed a contract with Silicon Graphics, Inc to have
one installed in my back yard. We should be fix in a couple
a months


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Message 14928 - Posted: 9 Aug 2004, 9:42:26 UTC - in response to Message 14927.  
Last modified: 9 Aug 2004, 9:43:39 UTC


@Darren again
I've put it back the way it was cause it fits the size of my sig.

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Profile Paul D. Buck
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Message 15160 - Posted: 10 Aug 2004, 13:40:01 UTC

If each node asks for work units individually then each of the 10,000 nodes could do the 50 per day. One of the interesting notes I saw while mousing about is that there is concern with the state of supercomputers in that almost all of the latest type of super computer are collections of nodes. This includes the distributed type that we are participating in also. The field of vector processors has been neglected with the effort concentrated in the construction of parallel procssors.

There are some problems that do not lend themselves to parallel processing and we are not making new vector processing machines. It is kind of interesting when you think about it.



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Message 15185 - Posted: 10 Aug 2004, 16:34:29 UTC - in response to Message 15160.  

> There are some problems that do not lend themselves to parallel processing and
> we are not making new vector processing machines. It is kind of interesting
> when you think about it.

Hi Paul

It's the real beginning of a new era in supercomputing. The Virginia
tech's "Big Mac" is a great example I guess. With Unix and the new
High I/O architecture machines that are available to public today any
one could built his own. With great knowledge and some money of course...


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Message 15237 - Posted: 10 Aug 2004, 22:06:17 UTC - in response to Message 15185.  

Petit,

> It's the real beginning of a new era in supercomputing. The Virginia
> tech's "Big Mac" is a great example I guess. With Unix and the new
> High I/O architecture machines that are available to public today any
> one could built his own. With great knowledge and some money of course...

In the "old" days we had Cray doing a new machine roughly each year. Even more interesting is the field in which Cray had more patents than any other ...

I am not sure but NSF once it gets BOINC going well might not start to put more attention into the field of vector machines.



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Message 15418 - Posted: 11 Aug 2004, 10:58:04 UTC - in response to Message 15237.  
Last modified: 11 Aug 2004, 10:58:54 UTC

> I am not sure but NSF once it gets BOINC going well might not start to put
> more attention into the field of vector machines.

I don't know as much as you do about supercomputing. Even It has always fascinated me I have never really got into all the techs involved in it. Well I know quite a few things about digits being an electronic engineer but It's the the big numbers and sci-fi that got me. I remember have seen a movie when I was a kid that I would really like to watch again. I don't remember the title but it's the story of a supercomputer located under a mountain in the US who is analysing the world geopolital situation and made to take control of the defence systems. Nobody knew it but it has a russian counterpart and they start communicating with each other. It starts to behave badly and its "creator" lost control of it. My favorite Hollywood supercomputer remain Hal 9000...War games was good too.

Marc


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Message 15425 - Posted: 11 Aug 2004, 11:20:41 UTC
Last modified: 11 Aug 2004, 11:21:57 UTC

Maybe you think of this film:

COLOSSUS: THE FORBIN PROJECT (USA 1970)

look at this link:

http://www.amazon.com/exec/obidos/tg/detail/-/6300987531/103-2895952-8007843

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Message 15435 - Posted: 11 Aug 2004, 11:54:11 UTC - in response to Message 15425.  

> Maybe you think of this film:
>
> COLOSSUS: THE FORBIN PROJECT (USA 1970)
>

Thanks Honie Thats the movie I was talking about. I remeber the name now.

Regards

Marc
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Message 15456 - Posted: 11 Aug 2004, 13:45:54 UTC

There was another similar story called "The God Machine" that came out in that era. We also have "the Moon is a Harsh Mistress" ...


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Message 15461 - Posted: 11 Aug 2004, 14:01:03 UTC - in response to Message 15418.  

> I don't remember the
> title but it's the story of a supercomputer located under a mountain in the US
> who is analysing the world geopolital situation and made to take control of
> the defence systems.

I think it was T3:Rise of the Machines

:)

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