1) Message boards : Number crunching : Holy cow, WU avalanche!!! (Message 19050)
Posted 21 Feb 2008 by Ariel

mhh, that are a lot of very small workunits. most of them between 10 and 500sec cpu time...

Actually, I think many of the 1,000,000 turn WUs (which would run 5 hrs on my machine) simply "crashed the particles" in the first 1000 turns or so; this is normal for some work units. I noticed that none of the 100,000 turn WUs (30 min on my machine) crashed the particles; they ALL ran for the full 100,000 turns.


2) Message boards : Number crunching : Stil a pending credit (Message 18937)
Posted 30 Jan 2008 by Ariel
Expedition. dur.

Anyway, thanks again for being such gentlemen; I just read the entire thread and you guys are really cool (OMG, is she from Silicon Valley?.. yup, I am. Fur sure... well, a bit North of Sil Val right now.)

Let's make some black holes!

Luv ya'll


3) Message boards : Number crunching : Stil a pending credit (Message 18934)
Posted 30 Jan 2008 by Ariel
azwoody said: It's not about getting the credit, but it's more of a "tidy things up" request..

Right now, I got about 4+ pages of the 0.00xx pending WU's, and another page or so of "moldy ones" (credit granted, but they don't go away!)

Just think of the 1000's or even 100's of thousands of "weird and old" records in the database.

Part of any science is to keep your lab clean and organized. I liek the science, but seems the DB is a bit of a mess.....

FalconFly said: Indeed, work done is work done, but seeing LHC not tidying up the few remaining Problems... it just looks like the transition to the new maintainers is somehow still incomplete after all this time.

I like projects 'clean' with all the small advantages that come with that.

Excellent points. I'm so mad I didn't get flamed! You guys are too smart for me. My fishing exposition is a failure. I remember a time when the LHC@home fora were full of numbnuts who would always crowd the entrance of a "troll bridge" ...but those were the good ol' days.

Thanks for playing:
You win.
I lose.

[kiss] ;}*

4) Message boards : Number crunching : Whoo-Hoo... W-Uuu's (Message 18926)
Posted 30 Jan 2008 by Ariel
83k is the saturation only as long as they stay with the 10 per day limit.

Remove the limit and let the power users add a few thousands to the saturation point...

It doesn't matter.
The party is over for now.


5) Message boards : Number crunching : Stil a pending credit (Message 18925)
Posted 30 Jan 2008 by Ariel
Hi. Just thought I'd troll in with an annoying comment:

I have a few old pending credits.....
and I don't give a rat's ass whether or not I get paid.

You can't buy a car with BOINC credits.
Bragging rights are for the emotionally frail.

Love the scientific work you do, and shut the f**k up.

Oops! That wasn't so cute.
Maybe, with some luck, I will again be regarded as one of the "Most Fearless" Crunchers on LHC.


[Love & Kisses] . . . ;}*

6) Message boards : Number crunching : Whoo-Hoo... W-Uuu's (Message 18920)
Posted 29 Jan 2008 by Ariel
The official Saturation Threshold for the Global LHC user base = 83000 WUs in progress

Now we know.

7) Message boards : Number crunching : Whoo-Hoo... W-Uuu's (Message 18914)
Posted 29 Jan 2008 by Ariel
If the project really does want tasks returned and validated as fast as possible, it's time to increase or remove the daily limit of 10/thread.
The Admins will probably give the "sleepy" users about 24 hours to get some WUs. This seems right; the dedicated users out there who don't have screaming computers deserve to participate, if only a little.

8) Message boards : Number crunching : Whoo-Hoo... W-Uuu's (Message 18911)
Posted 29 Jan 2008 by Ariel
Over 74000 WUs in progress..
WUs ready to crunch: 8300 and rising...

Over 14000 Wu ready to send now (rising.) The LHC user network is beginning to saturate at 78000 WUs in progress. Fun, fun!!

9) Message boards : Number crunching : Bugs - problems thread (Message 17872)
Posted 13 Sep 2007 by Ariel
I tried to add an avatar to my message board preference, and when I hit "update info" it came up with

Fatal error: Call to undefined function gd_info() in /srv/httpd/lhcathome.cern.ch/lhcathome/html/inc/image.inc on line 7
This is still happening, I still can't upload an Avatar and I am getting the same error message.

DOUBLE TRUE! ...this "Fatal error: Call to undefined function gd_info() in /srv/httpd/lhcathome.cern.ch/lhcathome/html/inc/image.inc on line 7" has been giving me a rash for a long time now. Come on, it's probably just a few lines of code. I'm losing hair over this.

Everyone should be allowed one pet peeve; this one is mine!!

10) Message boards : Number crunching : dear Neasan & Alex (Message 17861)
Posted 13 Sep 2007 by Ariel
It is not a problem any more. We are holding the jobs because we hope to get more very soon so you'll have even more to crunch.

Thanks Neasan. I got a nice fistful of WU's this morning from 8:46am to 8:50am PST... Four minutes of happiness in my otherwise dreary wasteland of a life so bereft of excitement, wonder, and inspiration.

Actually, I'm a little exited about the LHC switch-on this November ;)

11) Questions and Answers : Preferences : Cannot upload new avatar (Message 17732)
Posted 6 Aug 2007 by Ariel
Yes! This is driving me crazy too!!

I had to delete my avatar image in order to make a change to my sig; now I can't upload it again!

12) Message boards : Number crunching : The new look bugs (Message 17730)
Posted 5 Aug 2007 by Ariel
Aaargh! I still can't get my avatar image to work in Message Board Preferences!

I keep getting the following error:
Fatal error: Call to undefined function gd_info() in /srv/httpd/lhcathome.cern.ch/lhcathome/html/inc/image.inc on line 7

This is giving me a rash; please help!

13) Message boards : LHC@home Science : BOINC's Future With CERN? (Message 17729)
Posted 5 Aug 2007 by Ariel
I watched a "home spun" video documentary on CERN (which was done by one of you LHC@home participants, I think) and there was a section about the CERN grid. I was wondering if any portion of the CERN grid has been ported to a non-BOINC distributed computing project that could be crunched "at home"?

Any info would be appreciated... including flames about how clueless I am!

14) Message boards : Cafe LHC : Finally: The truth about NEZ (Message 17592)
Posted 29 Jul 2007 by Ariel
Some speculation here and a link to his one and only post over at SETI.
Hmph. Interesting post by NEZ. Yes, well, I've scored an interview appointment with him/her in August of 2014; it was arranged by the "wife" person refereed to in the post. But I'm already suspicious, because this so-called "wife" claims to speak 328 languages - over 2400 if you count the dialects of distinct languages... So.... are there that many languages on Earth? If not, where did she learn the other languages?

Further speculation to follow.

15) Message boards : LHC@home Science : String theory will finally get its day in scientific court (Message 17588)
Posted 28 Jul 2007 by Ariel
“If the test does not find what the theory predicts about W boson scattering,” said UCSD physics professor Benjamin Grinstein, “it would be evidence that one of string theory's key mathematical assumptions is violated.”
But on the other hand ... it would help if the findings match the theory.
How soon can this W boson test be conducted? Is it on the LHC to-do list? Can Fermilab, or old CERN, etc. conduct this experiment?
16) Message boards : Cafe LHC : Finally: The truth about NEZ (Message 17480)
Posted 21 Jul 2007 by Ariel
After years of research the secret is at last revealed. Painstaking compilation of countless shreds of information has led me to the full truth about the mysterious BOINC user know as NEZ.

What has always been known:
1) Most of the hosts are conspicuously hidden.
2) NEZ crunches almost exclusively for SETI@home
3) At 208,604,493 credits, NEZ is the World's top BOINC participant.
4) Crunching speed continues to blaze at over 2 million credits per week.

Additional information I have determined be true:
1) NEZ is an extraterrestrial alien living here on Earth.
2) Due to a major navigation system failure, NEZ's spacecraft was forced to land in Africa when it ran out of fuel.
3) There is nothing on Earth suitable to refuel the craft.
4) NEZ is quite unfamiliar with the Milky Way Galaxy and is therefore completely lost in the Universe. It is not know which galaxy NEZ is from, but M31 is a likely candidate.
5) Finding that Humans would be of no help, NEZ is crunching SETI@home to locate a nearby civilization that is much more intelligent. What NEZ plans to do once this is achieved remains unclear.
6) Contrary to popular belief, NEZ does not own hundreds of computers. The exact number is 27. However, these machines have CPUs that are cooled to a few degrees Kelvin and run at clock speeds of several terahertz.
7) NEZ is easy to get along with and enjoys drinking beer. Be sure to bring a sixpack if you ever get to visit him/her; brand is not important.
17) Message boards : LHC@home Science : If Neutrinos have no mass, can they escape a black hole? (Message 17461)
Posted 20 Jul 2007 by Ariel
...stating one of the basic equations of special relativity, which is, again

E^2 - p^2c^2 = m^2c^4

where m denotes the invariant or rest mass. A photon has no rest mass, so the equation reduces to

E = pc

where p is the momentum of the photon. Even though the photon has no rest mass, that doesn't make it an exception to general relativity. In fact, because the photon has no invariant mass, it will travel along a perfect geodesic since it does not distort spacetime.

To answer your other question, yes, there is a mass-momentum relationship in special relativity, but it only applies to particles that actually have mass (read: invariant or rest mass).

It is:

p = mv/Sqrt[1-v^2/c^2]

I am unsure if you are familiar with the concept of a Taylor series, but it is a common technique used in physics to approximate an equation about some value by an infinite series. The idea is to find a polynomial whose derivatives all match a given function at a point of interest. The upshot is that the more terms you add, the better the approximation is, and for small perturbations, the approximation is extremely accurate. In this case, we can take the above expression and expand it into this series:

p = mv + mv^3/(2c^2) + 3mv^5/(8c^4) + O(v^6)

where the O term denotes whatever higher order terms I have left out in this expansion (the higher the order, typically the less important the term). The interesting point is that we see the first term (typically the most important) is mv, which is the classical expression for momentum, so we know then that the special relativity relation for momentum-rest mass reduces to what we classically expect in the small velocity regime v << c.

Mercy. The forums (actually, "fora" being plural of "forum", if I'm correct) are getting deep again. Time for me to get an Extension Course catalog and go back to school. - - Ah bugger; I used to feel so smart here.
18) Message boards : Number crunching : Because you asked.... (Message 16857)
Posted 9 May 2007 by Ariel
I think I might have poured gasoline on a smoldering fire. Here's blowing a little sunshine up everyone's ass... I love you guys!

Thanks much for assshine, Q!

Correct me if I'm wrong, but I think I was defending you against the "Deadly Dagor" when things really started to heat up. I said some things that might have... uh.. struck a nerve in him somewhere?

Anyway, good to see the aura of Barry White in the forums again!

19) Message boards : Number crunching : Because you asked.... (Message 16824)
Posted 7 May 2007 by Ariel
Gee, I like you too, Ariel, but I'm not convinced it's working for you. What do you mean by ass wipe and why am I the biggest? I've been D&A free for a long time, never went to AA though.

I was just pulling your chain. And yes, I don't always post sober... so it's not entirely working for me.

As for being an ass wipe (perhaps the biggest), I will say this:

Generally speaking, you are not well-liked by the other forum goers. You, dear Dagorath, are what many refer to as a troll. I, however, don't think you're a troll, but flames tend to emanate from your fingertips without reasonable provocation. When you attack other lhc members with dried blood underneath your fingernails and puss suppurating from your eye sockets, one tends to write you off as a troll. I've read most of your posts on lhc, and I'm convinced that you're about 20 IQ points above most others who post. But there are times you look like a flimsy piece of fabric with sh*t all over it, hence ass wipe.

Try to be nice every now and then... it only hurts a little.
20) Message boards : Number crunching : Because you asked.... (Message 16821)
Posted 5 May 2007 by Ariel
Dagorath, I like you.

But you're the biggest ass wipe in the lhc forums. Do you always drink a few cocktails before posting? Next time try posting sober. Works for me. - - ;)

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