Are we still looking for ET ?

Looking at the server’s acquisition and splitter tapes status at http://setiathome.berkeley.edu/sstatus.html it looks like we are all crunching data that have been analysed many many times, I guess…

Is S@H still a project searching for ET signal or is it just for numbers cruncher’s competition ?
Isn’t it a waste of energy to “ stupidly ” crunch units for nothing else than numbers ? Should we use our processing power to some more “ useful ” humanitarians Projects like fighting AIDS ? At least until we can listen on other part of the sky, different frequencies, etc.

There are ten times more post in the number crunching section than SETI@home science. I was even planning to built myself a “ supercomputer ” dedicated to SETI, but what’s the point, really.

Or perhaps I am wrong.

Cheers
Marc from France

Ich hoffe das ich es richtig verstanden habe.
Wenn es so ist kann man ihm nur recht geben,es wäre in der Tat sinnlos immer die gleichen Arbeitseinheiten durch die Rechner zu jagen.Nur das es leider auch so ist,das bei vielen Projekten im medizinischen Bereich Kommerzielle Interessen von Firmen dahinter stecken ,die man auf den ersten Blick gar nicht ohne weiteres erkennt.Und ich es ehrlich gesagt nicht einsehe Firmen zu helfen ihre Entwicklungskosten zu senken,da in diesem Bereich genug Geld verdient wird !
Gruss guido
[/url] [/url]
Bei der Eroberung des Weltraums sind zwei Probleme zu lösen:Die Schwerkraft und der Papierkrieg. Mit der Schwerkraft wären wir fertig geworden.Wernher von Braun

Hi

What i saw yesterday, is that we are crunching exactly the WUs from Jan01 to Jan11 that is shown on the Seti site.
So i think youre wrong.

greetz Mike

> Ich hoffe das ich es richtig verstanden habe.
> Wenn es so ist kann man ihm nur recht geben,es wäre in der Tat sinnlos immer
> die gleichen Arbeitseinheiten durch die Rechner zu jagen.Nur das es leider
> auch so ist,das bei vielen Projekten im medizinischen Bereich Kommerzielle
> Interessen von Firmen dahinter stecken ,die man auf den ersten Blick gar nicht
> ohne weiteres erkennt.Und ich es ehrlich gesagt nicht einsehe Firmen zu helfen
> ihre Entwicklungskosten zu senken,da in diesem Bereich genug Geld verdient
> wird !
> Gruss guido
> [/url] [/url]
> Bei der Eroberung des Weltraums sind zwei Probleme zu lösen:Die Schwerkraft
> und der Papierkrieg. Mit der Schwerkraft wären wir fertig geworden.Wernher von
> Braun
>
Salut Guildo,

Je n'ai rien compris mais je suppose que c'est très instructif.
Je ne suis surrement pas le seul à écrire en Anglais dans le but
d'être compris par tous. Je ne comprend vraiment pas pourquoi tu
me répond en Allemand. Quoi qu'il en soit, j'ai traduit ton texte
sur internet pour voir, mais les traducteurs ne sont pas très performant
pour le moment. Tu le constatera surrement par toi même.

Salutation
Dah dah di di dit Di di di dah dah

> Hi
>
> What i saw yesterday, is that we are crunching exactly the WUs from Jan01 to
> Jan11 that is shown on the Seti site.
> So i think youre wrong.
>
> greetz Mike
>
>

Hi Mike

Its a very good news if I am wrong. I thaught That SETI had much more
processing power than recording capabilities. I can go on and built my
supercomputer than. These WU from January are really still fresh ?

Cheers
Marc

Hi Marc

When you look at the Seti site you can look at the current splitter tapes.
This is what i read yesterday.
There are a lot of information about crunching older WUs sometimes called reobservation units.

greetz Mike

Google Translate for --LITTLE SUN--
I hope which I it correctly understood. > if it like that is can one him only quite give to lower it would be indeed > the same working units by the computers to hunt only it > also like that senselessly always unfortunately is, who with many projects in the medical range commercial one > interests of companies behind it puts, one at first sight not at all > easily erkennt.Und I it honestly said does not see companies to help > their development costs since within this range enough money becomes earned >! > greeting guido
Bei der Eroberung des Weltraums sind zwei Probleme zu lösen:Die Schwerkraft und der Papierkrieg. Mit der Schwerkraft wären wir fertig geworden.Wernher von Braun

we looking for ET
[/url] [/url]
Bei der Eroberung des Weltraums sind zwei Probleme zu lösen:Die Schwerkraft und der Papierkrieg. Mit der Schwerkraft wären wir fertig geworden.Wernher von Braun

[/url] [/url]
Bei der Eroberung des Weltraums sind zwei Probleme zu lösen:Die Schwerkraft und der Papierkrieg. Mit der Schwerkraft wären wir fertig geworden.Wernher von Braun

> [/url]
> Bei der Eroberung des Weltraums sind zwei Probleme zu lösen:Die Schwerkraft
> und der Papierkrieg. Mit der Schwerkraft wären wir fertig geworden.Wernher von
> Braun
>

Ya great ! Its a superb weather radar image. I have seen thousands of them being radio officer
and telecoms engineer in the marine since 15 years. But please tell me why you post this. does it have anything to do with the subject ??????????????????????? No offence but you are kind of weard and strange !

> Or perhaps I am wrong.
>
> Cheers
> Marc from France
>
(I've read your newer post of this issue, but that was under another topic, so I answer where I feel the discussion should be held)

Perhaps you are, perhaps your not. Looking at the status page, it looks to me like we are processing new units.

About people writting more in Crunching than science.
I think that looking for ET seems rather abstract, you know your computer helps, but most people also find it really cool to see who has helped the most. It doesn't really matter that some people have access to huge amount of power, that problem solves itself, since you are quickly ranked among those with similiar power to your's, and THAT'S who you compete to.

I once made a small little game at school. It was played over the web and was available only to my school, and the point was basically just to click as much as you could. The game was ofcourse really boring, and for me it was just programming practice, but as soon as I added a highscore board, so you could compare yourself to others, people went crazy. They would click like their life depended on it, and they convinced their friends to log in on their accounts to help the aswell.

Ego? Yes.
And if we are really just doing it for the crunching in it self, then I agree with you, it is pointless.
I don't beleive however that it is, the ego part is second, and we really are doing new data. Also, if you check here
http://setiathome.berkeley.edu/process_page/
it says we are just over halfway. Accurate or not, I don't know.

Phew, that became a long answer :-)
Now I'm soon off to work and hope there's a reply when I get home.

Oh, btw, I like physics, those calculations on electrical power usage would interest me. :-)

I have to confess, I was wrong. I have made a lot of search about SETI, the way it works, etc, since I have posted that thread. Thanks to those who replied and helped me understand. Only fools don't change their minds...

Well if you are into physics you won't learn anything from me...

An average home PC with a 400 Watts power supply runs for 24 Hours.

[W=Pt] W=Energy in Joules P=Power in Watts t=Time in seconds

W= 400(24X60X60)
W= 400 X 86400
W= 34,56 MJ (34560000 Joules)

or

24 X 400 = 9,6 KW hours

It is almost impossible to evaluate how many computers are running SETI. S@H currently have about 5 Millions users. Some runs it as screen saver, others runs just a few hous per day others have many computers running 24 Hours, etc
Let say for expample that 20% of them are active and running one PC 24 hours per day dedicated exclusively for SETI. Witch is a very optimistic scenario.
Real number could be much higher, assuming that many crunchers uses dozens of machines.

5000000 X 0,2 = 1000000
1000000 X 9,6 KW = 9,6e+09 (9600000000 Watts hours)
= 9,6 GW

9,6 Gega Watts = 12873809 HP = 128739 average family car running 24 hours day

A more precise picture of total power consumption used for SETI would be by calculating total WU received by SETI in one day multiplied by average times it takes to crunch one units.

Results received last 24 hours = 1472056
Average CPU time per WU = 6,85 hours

= 10083584 hours
= 4,03e+09 Watts
= 4,03 GW

HAPPY CRUNCHING

Best regards
Marc

> Well if you are into physics you won't learn anything from me...
>
> [W=Pt]
>
> An average home PC with a 400 Watts power supply runs for runs 24 Hours.
>
> W= 400(24X60X60)
> W= 400 X 86400
> W= 34,56 MJ (34560000 Joules)
>
> or
>
> 9,6 KW hours
>
> It is almost impossible to evaluate how many computers are running SETI. S@H
> currently have about 5 Millions users. Some runs it as screen saver, others
> runs just a few hous per day others have many computers running 24 Hours, etc
>
> Let say for expample that 20% of them are active and running one PC 24 hours
> per day dedicated exclusively for SETI. Witch is a very optimistic scenario.
> Real number could be much higher, assuming that many crunchers uses dozens of
> machines.
>
> 1000000 X 9600 = 9,6e+09 (9600000000 Watts hours)
> 9,6 GW
>
> 9,6 GW = 12873809 Horsepowers = 128739 average family car running 24 hours
> day
>
> HAPPY CRUNCHING
>
>
> Best regards
> Marc
>

It's too early in the morning for that! You just fried my brain... I'm going back to bed.



<a> [/url]

Now I'm soon off to work and hope there's a reply when I get home.

Oh, btw, I like physics, those calculations on electrical power usage would interest me.

---------------

I have to confess, I was wrong. I have made a lot of search about SETI, the way it works, etc, since I have posted that thread. Thanks to those who replied and helped me understand. Only fools don't change their minds...

Well if you are into physics you won't learn anything from me...

An average home PC with a 400 Watts power supply runs for 24 Hours.

[W=Pt] W=Energy in Joules P=Power in Watts t=Time in seconds

W= 400(24X60X60)
W= 400 X 86400
W= 34,56 MJ (34560000 Joules)

or

24 X 400 = 9,6 KW hours

It is almost impossible to evaluate how many computers are running SETI. S@H currently have about 5 Millions users. Some runs it as screen saver, others runs just a few hous per day others have many computers running 24 Hours, etc Let say for expample that 20% of them are active and running one PC 24 hours per day dedicated exclusively for SETI. Witch is a very optimistic scenario.
Real number could be much higher, assuming that many crunchers uses dozens of machines.

5000000 X 0,2 = 1000000
1000000 X 9,6 KW = 9,6e+09 (9600000000 Watts hours)
= 9,6 GW

9,6 Gega Watts = 12873809 HP = 128739 average family car running 24 hours day

A more precise picture of total power consumption used for SETI would be by calculating total WU received by SETI in one day multiplied by average times it takes to crunch one units.

Results received last 24 hours = 1472056
Average CPU time per WU = 6,85 hours

= 10083584 hours
= 4,03e+09 Watts
= 4,03 GW

HAPPY CRUNCHING

Best regards
Marc

Bah! I am in it for the money ;0)

@little sun
build this and you have elektric power in the house,more then you need ;-)
[/url] [/url]

Hi Guido,

Being an ecologyst, I wish I had such a system but it's very expensive to built.
I know that this type of energy is very popular in Germany and all Scandinavian
countries. We should follow the example.

Best regards
Marc

ok little sun-its allways the same problem MONEY all over the world i know
but then let us go back to the thing we all have to do-still looking for ET--
nice sunny sunday tomorrow @ll
grettings guido
[/url] [/url]
Persönlich bin ich immer bereit zu lernen, obwohl ich nicht immer belehrt werden möchte.:-)

I deleted most of the original just to save space on the board. I do have a problem with your calculations though. Just because you have a 400W power supply or 560 like me, doesn't mean that you use that much runing SETI. You do use more power running SETI, but there is a lot more power available for running other things, like additional hard drives which aren't always turned on and aren't always actively transfering data, the sound and video cards (video card would consume more power if you are running the SETI graphics but otherwise would be fairly idle, and is when working can be a major power hog) any other drives and devices that are on the computer and not running at their full abilities. Even if you had every device running at one time at full capacity most should not reach the maximum capacity of their supply. So in reality, the amount of power should from running SETI should be quite less. Far more power is used on a single computer running a 3D video game for the same amount of time, especially when graphics options are increased and maxed out.

So, although the computer definately uses a lot more power when SETI is running, the actual power consumed per computer would be quite a bit less for running SETI.

In order to accurately guage the amount of power used for a dedicated or nearly dedicated SETI "drone" (i.e. - no gaming, limited web browsing, etc.) you would actually have to take a few sample computers and run them as a they were primarily for SETI and measure the power they are actually using, perhaps with some different configurations for processor and disk drives. And it would be interesting to see the results, especially if a good array of sample computers were used in the estimates with results reported separately and as an average along with total estimates.

Chris

PS - If you notice, the number cruncher forum has a lot more posts about problems, questions on running SETI, suggestions, and general chatter than it seems to have about actual number crunching. And if you add in the extraordinarily long signature test posts, that would pretty much account for your discrepancy between this board and the others.

> = 10083584 hours
> = 4,03e+09 Watts
> = 4,03 GW
>
> HAPPY CRUNCHING
>
> Best regards
> Marc
>
>
>
>

@marc H.
its possible to run boinc in the ramdisk on win xp (save harddisk power)?
grettings guido
Persönlich bin ich immer bereit zu lernen, obwohl ich nicht immer belehrt werden möchte.:-)