1) Message boards : Number crunching : A Miracle! (Message 15842)
Posted 20 Dec 2006 by Profile [B^S] Molzahn
Christmas is early this year...


Indeed. :P

This is why you "feel" a sense of community here, as well as seeing how dedicated people are to LHC, CERN, science and crunching in general.

I hope all of the usual suspects (forum posters) got some work.

The incurable optimist,
Mike Molzahn

Postscript: Happy Holidays and Happy Crunching!
2) Message boards : Number crunching : New Work so get it while you can....! (Message 15807)
Posted 13 Dec 2006 by Profile [B^S] Molzahn
Edit: I essentially deleted a very long post about spotting the problem of scheduler exploitation, why it's an important problem and views on others machines. It really wasn't needed so i deleted it. I was mostly pointing out problems with hosts and showing examples on spotting and how it's done. (essentially points that i would be overstating)

I was preparing for a final tomorrow in 'The History of Southeast Asia' and the tedium got to me, so posting was a nice break from that.

the deleter of pointless posts and the incurably optimistic,
3) Message boards : Number crunching : New Work so get it while you can....! (Message 15803)
Posted 12 Dec 2006 by Profile [B^S] Molzahn
I hope we get the new admins soon, and they add a cache limit to the scheduler - along with all the other things that have to be done (host duplication, stats...)

Amen to that! I probably shouldn't have mentioned this, but you can easily tell who the major offenders of this 'exploit' are. (repeated contacts and downloading units soon after others/initial contact.)

4) Message boards : Number crunching : New Work so get it while you can....! (Message 15801)
Posted 12 Dec 2006 by Profile [B^S] Molzahn
A response to some with fewer WU's and some with plenty:

Another way of going about getting more, something i no longer do and wouldn't encourage, you can suspend all other projects, turn the time between contacts up (like from .4 days to 2 or 3 days), contact LHC servers again, and it will fill up with several days worth of work.

I realized how bad an idea this was when work was starting to become scarce a while back; others were sad about not getting work and it became all too apparent how unfair that was.

I strongly discourage you from to 'exploiting' the servers this way.

The incurable optimist,
5) Message boards : Number crunching : New Work so get it while you can....! (Message 15782)
Posted 10 Dec 2006 by Profile [B^S] Molzahn
I am equally elated with the WU's to crunch :)

I hope everyone, especially the frequent posters / LHC's most active proponents got some while they lasted.

The incurable optimist,
Michael D. Molzahn
6) Message boards : Cafe LHC : New member here to introduce myself (Message 15644)
Posted 24 Nov 2006 by Profile [B^S] Molzahn
Welcome Bill,

Your endeavor, while to some extent unconventional in it's approach, sounds very interesting and noble in it's aspiration. I'm sure we all can appreciate the goal of increasing participation and increasing awareness for DC efforts; i'm also sure we can suggest it's quite important for many respective reasons.

I am sure you will find the BOINC community, and LHC in particular, a great group of dedicated people, as it sounds like you are.

My best of luck to you and my most sincere welcome to LHC,

Postscript: sorry for the broad generalizations, and i guess my interpretation of 'common conventions' is an arguable position; there is no need to allow that to detract from my welcome message. :)
7) Message boards : Cafe LHC : ITER (International Thermonuclear Experimental Reactor) (Message 15613)
Posted 21 Nov 2006 by Profile [B^S] Molzahn
Thanks river,

BBC World Service and CNN just announced they agreed as i was writing a paper on this for 'Ethics (of) and the Environment in Literature'; now i have to rewrite some of the speculation parts lol... :)

Follow up link on agreement

Postscript: Good call on Leiden by the way, just attached it last night, thanks for the heads up.
8) Message boards : Cafe LHC : ITER (International Thermonuclear Experimental Reactor) (Message 15604)
Posted 20 Nov 2006 by Profile [B^S] Molzahn
Howdy Crunchers,

I figure some of you may find this editorial interesting.

A brief excerpt from the BBC editorial / letter on bbc.co.uk :
After decades of research in laboratories all over the world, a consortium of countries representing over half the world's population is now poised to take a major step forward in proving whether fusion power can become a reality.
On 21 November ministers from Europe, Japan, the People's Republic of China, India, the Republic of Korea, the Russian Federation and the United States of America meet in Paris to sign an agreement to construct an international experiment on the scale of a fusion power plant - Iter (International Thermonuclear Experimental Reactor; "the way" in Latin) in the South of France.

I figure many of you watch, read or listen to BBC/credible news outlets (who doesn't love the BBC, or commons's question time for that matter?), but some may not have been aware of this; thus, i bring this to your attention with the hope that someone enjoys it and looks for updates. (It seems appropriate because it, at least in my mind, has tenuous ties to the type of goals/research most here would probably be interested in.)

best regards,
Mike Molzahn

Postscript: if this has been mentioned here, or if CERN's website talks about this, i'm sorry for restating something already discussed.
9) Message boards : Number crunching : Projects to mix with LHC (Message 15557)
Posted 18 Nov 2006 by Profile [B^S] Molzahn

you have the choice, and... more 30 projects from alpha status to full production status ! Attach, try, test, you like it ? good ; you don't like it, detach.
Keep an eye on the new and often little projects. They will try also to give you a very good support and to have a good communication with you.

I must agree with this whole-heartedly. Alpha and Beta projects are some of my favorite projects to read about and check into.

RALPH (Rosetta Alpha) seems to be, at least was recently accepting new users, without any delays or quotas for signing up.

The sentiments some mentioned for projects like Einstein and Rosetta are indeed just; i also think they are great, thankfully Rosetta has the kinks worked out.

Give RALPH a shot if you like alpha projects and ease in jumping quickly up the point standings.

I'm running Rosetta at 1, Einstein at 4, LHC at 90, Predictor at 1 (almost always suspended), Ralph at 4, seti at 1 (always suspended), Malaria Control at 4.

Happy Crunching all,
Mike Molzahn

Postscript: It's great to see the spike in activity here recently; most importantly less attention focused toward complaints about work availability.
10) Message boards : Cafe LHC : Why this ugly blue-gray look? (Message 15085)
Posted 12 Oct 2006 by Profile [B^S] Molzahn
Black text on white background is much nicer for the eye.

I may agree that it is far more esthetically pleasing (white background that is), but the bright light of a white background is torture on the eyes.


I like our 'drab' look :P


Postscript: now that gold, on the other hand, could be an interesting change; as long as we keep a dark background I'll be happy.
11) Message boards : Number crunching : Why are you a member of LHC@home? (Message 15031)
Posted 9 Oct 2006 by Profile [B^S] Molzahn
1) Only for give an Hand to the best BOINC project avaible at now! :)

Haha, I must agree with this, and it's always fun to bring a dead thread back to life.

Welcome Raghnar, I noticed your post about the WU's recently, but neglected to say hello and welcome, so I'm doing so here. :)

I would echo your enthusiasm in the project and say that enthusiasm sets this apart from many projects; people really need to care about LHC to have this project attached.

Along with what river said, his points (along with others) were about the same as my sentiments for this project.

In hope of crunching at some point or another (or not, it's still a great community and project),
Mike Molzahn

Postscript: LoL i thought the forum was screwy, i may have responded to the wrong post (was looking at joined date not post date :P)
12) Message boards : Number crunching : Not HAPPY people. (Message 13145)
Posted 28 Mar 2006 by Profile [B^S] Molzahn
Rosetta@home is begging for more participants. The URL is http://boinc.bakerlab.org

This is one of the better projects that I have seen for communication from the project scientists and for acknoledgement of their contributors. I urge you all to check them out as they're doing great things!



I am so disgusted with Rosetta that I will make a personal plea to everyone NOT TO JOIN that project. I clearly remember the day they moved up from beta. Everyone was soo pleased and thought it was making fast progress. Yet, the workunits are continually plagued with problems to this day. There is only so many mistakes to own up to before you just get sick of them (I did) and drop the project. What a waste of precious computer time! NO thanks!

I must say, I joined Rosetta, and the first six or seven units failed. I read up and realized a reboot was a necessity. I detached, (upon a reboot), I will reattach. I have yet to think that the scientific gains could outweigh the minor problems with the project... Granted I haven't rebooted in nearly a month, I will not heed this warning. I think, after seeing a discussion on C-SPAN, this project is incredibly worth while and will only improve in the future. It seems people in this thread have been suspect of the potential for several projects, including LHC, I don't share this negativism. It's interesting no-one has mentioned malaria control.net; they are great in my opinion.

In hopes of more LCH units to crunch in the near future (if not, I will keep waiting [diligently]),
Mike Molzahn
Post Script: I may not have the experience and time that you have spent on the project, but the advances they are trying to achieve are far more important than minor (albeit consistent) errors IMHO.
I just don't see the point in a blatant call for the boycott of any project, no matter personal opinions of (possible) incompetence.
13) Message boards : Number crunching : Not HAPPY people. (Message 13084)
Posted 20 Mar 2006 by Profile [B^S] Molzahn
maybe the guys at CERN can write an app. that will help us understand the
intricate nuances of a VOLUNTEER program where people DONATE their CPU
time to help crunch numbers for scientific projects. That should keep
the whiners pacified for a while.

While i may have some (slight) enmity for throke after his posts on my website, and i may feel his post was unnecessarily sarcastic, I do agree with the gist of it and the posts that preceded this one.

If you don't wish to crunch for LHC anymore, no love lost. I am sure you will feel happier at another project with constant work. It will leave more WU's for those of us dedicated to the project to crunch.

Thank you for the time you spent crunching here,

14) Message boards : Cafe LHC : March 27th Forbes magazine (Message 13043)
Posted 15 Mar 2006 by Profile [B^S] Molzahn
Hey again,
I hate to reply to my own post, and to detract attention from the "Good Luck Chrulle" post, but i found that the link provided gives you a signup form.

(Only through a direct search on Google using the words "Large Hadron Collider Forbes" will you get a link that will not give you a signup form; it's free but a hassle.)

So i will copy paste the article (sadly you will not see the wonderful images in the magazine):

Forbes Magazine, "Big Bang" by Daniel Lyons, 03.27.06

It will be the world's largest machine. It could explain the origins of the universe. But first a team of engineers has the gargantuan logistic challenge of putting the Large Hadron Collider together
For physicists the large Hadron Collider will be the ultimate blackboard. This particle accelerator will have 1,700 enormous superconducting magnets stretched along a 17-mile-long underground tunnel spanning the French-Swiss border. The magnets, weighing up to 37 tons each, will accelerate two beams of protons in opposite directions to nearly the speed of light. These protons will collide in four giant particle detectors, the largest of which will occupy an underground cavern as big as Notre Dame Cathedral, producing a spray of particles that scientists hope will unlock profound secrets about the origins of the universe and the nature of matter itself.

The physics is difficult. The engineering is next to impossible. CERN, the European Organization for Nuclear Research in Geneva, is faced with the dauntingly complex logistical assignment of first assembling an underground laboratory, which, despite its colossal scale, must operate with the precision of a Swiss watch, and next keeping it running without breakdowns. The resulting object, which has consumed more than a decade in the design and construction, will be the biggest supercollider in the world and the largest machine of any kind, containing 1 million components and carrying a price tag of $8 billion. The beast will run at a temperature just above absolute zero, making it colder than outer space. The complicated cryogenic system has already suffered a breakdown that delayed construction by six months.

"The challenge is enormous," says Pedro Martel, 39, an engineer who joined CERN in 1995 and leads a pack of software developers writing code that tracks almost every piece of the supercollider and schedules every step in its assembly. "We know there will be growing pains. Such a machine has never been built before."

CERN, founded in 1954, is funded by 20 European nations and is best known as the place where 15 years ago a British researcher named Tim J. Berners-Lee invented a way of sharing information over the Internet called the World Wide Web (otcbb: WWWB.OB - news - people ). These days CERN crews are racing to meet a summer 2007 deadline for the start of operations. In a vast hangar near CERN's 1,500-acre campus at the foot of the Jura Mountains workmen from France, Poland and a dozen other countries are building the 13,000-ton Compact Muon Solenoid detector, climbing scaffolding and blasting away with welding machines whose fumes fill the air. The detector is being built in 13 pieces, the largest of which weighs 2,000 tons. Each piece is lowered by a crane down a 300-foot shaft with such care that a single descent takes 24 hours. Some sections will have only 20 centimeters of clearance. Once the pieces are lowered into the tunnel, they are slid together. The collider is like a Christmas toy that comes with the warning "Some assembly required."

Five miles away a different team is assembling an even larger detector standing five stories tall and containing eight toroidal magnets, each 80 feet long and 16 feet wide. Across the border, in France, scientists are testing hundreds of 50-foot-long superconducting magnets, devices so huge they must be moved with "Robotrucks" and yet contain components built to tolerances as tight as a few millionths of a meter. Deep underground, crews have already installed 250 of these magnets in the tunnel, where workmen zip along on bicycles or on electric carts that look like something out of a James Bond flick.

The tunnel was created for an earlier, less powerful particle accelerator, which was shut down in 2000. The older machine used smaller magnets that allowed ample room for maintenance workers to make repairs. The larger magnets in the new collider, along with their accompanying cryogenic system, will crowd the tunnel, making access more difficult. So while in the previous accelerator a single faulty magnet could be pulled out without much trouble, replacing one now may require removing dozens of others stacked between it and the nearest access point.

Once the magnets are installed and proton beams are zooming around the ring, physicists from around the globe will begin to gather data from collisions. Each second, 3,000 packets, each containing 10 trillion protons, will make 11,000 round-trips of the ring. Most protons pass through without colliding, but under optimal conditions up to 800 million collisions can occur in a single detector each second. Of these only a tiny percentage provide useful data--perhaps one in 10 trillion. A computer "grid" of thousands of small servers will churn through petabytes (quadrillions of characters) of data to find meaningful collisions. "It's like looking for a grain of gold on a beach," says Lucio Rossi, an Italian physicist who oversees the assembly and installation of magnets.

By measuring particles sprayed from collisions, physicists hope to get a glimpse of the universe as it existed just after the Big Bang and to figure out, among other things, why matter has mass. Key to that question is the search for a particle called the Higgs boson. Other accelerators, like the one at the Fermi National Accelerator Laboratory in Illinois, have failed to find this elusive particle. The CERN supercollider will smash protons at energy levels seven times those at Fermilab and so might succeed where Fermilab has failed. The discovery of the boson just might persuade CERN's members that their contributions were not in vain. (The U.S., which has "observer" rather than "member" status, put up $580 million.)

Engineers have scheduled three days of downtime a month for routine maintenance. But glitches could take the system down for six weeks: three for the magnets to warm up and three to chill back down to operating temperature of 1.9 Kelvin. (That's minus 456 degrees Fahrenheit.) Such a shutdown would be especially devastating because physicists will use the collider only 140 days a year. (The machine draws as much power as a small city, so CERN will run it only in summer months, when electricity prices are half of what they are in winter.) As Martel puts it: "Four breakdowns in a year means no physics gets done."

Hoping to avoid such a calamity, Martel's group created the program to track virtually every piece of equipment used in the collider, from the wires and connectors on superconducting magnets to the fittings on the cryogenic system. In all, 2,000 contractors in 80 countries are providing equipment. If a component gets recalled, the engineers can spot all the places where it has been installed.

This program is based on the same commercial software CERN uses to schedule repairs for broken windows and burnt-out lightbulbs. It is made by a U.S. company called Datastream. When Martel proposed using Datastream in 2000, he encountered resistance from fiefdoms--cryogenics, magnets--which in the past had controlled their own data and weren't crazy about sharing. "It was a tough fight. You would not believe it," says Martel, a native of Portugal. After a year of haggling, in 2001 CERN's brass approved Martel's proposal. But then Martel ran into resistance from external suppliers who viewed the software as a headache. Some even sought to be paid extra since using software hadn't been specified in their contracts. (This is Europe, after all.) In the end the contractors fell in line, in some cases after renegotiating contracts.

The other challenge was writing 185,000 lines of code. Martel and two other engineers first customized the Datastream program, then added features to tie it into an Oracle (nasdaq: ORCL - news - people ) database and a document management application. Then they made it possible for people to enter information using only a Web browser. The program also helps physicists position the magnets. No two are identical; each has tiny irregularities in its magnetic field. The trick is to optimize performance by finding magnets whose irregularities cancel one another out and placing them next to one another. "It's like a big jigsaw puzzle," Martel says.

Martel's software also helped fix a potentially disastrous problem. In December 2004 engineers discovered a design flaw in the sliding table of the cryogenic system. The software identified every spot where the flawed part had been installed or was due to be installed, so assembly could be halted while the table was redesigned and new units were constructed. CERN officials say they have recovered most of the six months lost to the delay and expect to get the collider running on schedule next year. Then all they have to do is figure out how the universe began. Piece of cake.

Anyhow, if you get a chance to look at the magazine at a newstand there are some nice full page pictures.


Post Script: I am aware most of this is already known to us, but i enjoyed reading it none the less; maybe someone else will.
15) Message boards : Cafe LHC : Good Luck Chrulle (Message 13027)
Posted 13 Mar 2006 by Profile [B^S] Molzahn

All my best to you in future endeavors!

We all appreciate your hard work and contributions,

16) Message boards : Cafe LHC : March 27th Forbes magazine (Message 13026)
Posted 13 Mar 2006 by Profile [B^S] Molzahn
Hey all,
I just got my March 27th copy of Forbes magazine. It had a great article on LHC and CERN.

I hope this isn't a duplicate of some else's post.

Anyhow, you can see it at:
direct link
(i think you may have to sign up.)

17) Message boards : Number crunching : How to Use 100% CPU? (Message 12996)
Posted 12 Mar 2006 by Profile [B^S] Molzahn
Wow, I am surprised.

My questions the past couple days have garnered attention and great responses (like the post about future of LHC@Home).

I really appreciate everyone's insight into this.

I have always been a huge AMD fan, and i'm glad everyone else is concurring with their supremacy.

In response to Flacon,
I have wondered (as you seem to have wondered) when Intel would bring serious innovation like AMD has; but with their new partnership with Apple, i am assuming they are trying to expand their presence in the market and regain their supremacy.

Thanks everyone!
Post Script: I'd be hard pressed to truly stress how great, and helpful, this community is. :)
18) Message boards : Number crunching : Is the user base/project participants growing a bit too large, for our server? (Message 12973)
Posted 9 Mar 2006 by Profile [B^S] Molzahn
Chrulle & Ben Segal,

Thank you both for the update.

Most importantly, thank you for your hard work; and the many hours you have dedicated to a project that (i am sure) all of us "crunchers" are happy to work on.


Post Script: River~~ Thanks for responding, i was glad to read your thoughts (and everyone elses).
19) Message boards : Cafe LHC : Malaria Control account creation (Message 12961)
Posted 7 Mar 2006 by Profile [B^S] Molzahn
Krunchin Keith,

Thank you sooooo much for keeping us updated!

happy krunchin,
Mike :)

20) Message boards : Number crunching : strange error message (Message 12956)
Posted 6 Mar 2006 by Profile [B^S] Molzahn

Here is a link to the "zero status no 'finished' file" page (at the new location) of Paul D Buck's Wiki: (The page has an explanation of, and instructions for fixing, this problem.)

link to error page at new location

I would follow the suggestions on the wiki. If after reboot and disk check problem isn't fixed: uninstall/reinstall BOINC and attach projects. (it sounds as if it's boinc, or the computer since there are errors on more than one project).

But those are my thoughts; the Wiki should be the first place you look for a solution (rather than my opinions). :)

Hope that helped (at least a little bit),

Post Script: If the wiki isn't helpful: i am sure someone else will post something far more helpful with details about your problem. It might also be useful to search the forum(s) on this, and other projects, for other discussions.

Post Script2: If your problem isn't fixed (after looking at the wiki), it would be good to post information about the steps you have taken to rectify the problem.

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