“One has a moral responsibility to disobey unjust laws.”
  Martin Luther King Jr.

Sure, but as far as I've seen, linear algebra problems dominate the runtime of these very large systems. That's what I use them for.

At least the first 6 on that dwarfs list are done daily on top500 machines. I write parallel spectral methods, and use structured and unstructured grids. Achieving high scaling on these on massively parallel machines is not at all what I would call an open problem (as far as correctly using a given network for a problem, or designing a network for a given problem). For any given network topology, breaking these problems into parallel chunks that are best for the particular topology is just a graph partitioning problem with a trivially sized graph. That little white paper strikes me as being somewhere between "obvious to anyone that's done high performance computing in the last 40 years" , "putting a cute name on old hat", and just plain silly.

Considering that computational fluid dynamics, molecular dynamics, etc., break down into linear algebra operations, I'd say that the FLOPS count on a LINPACK benchmark is probably the best single metric available. In massively parallel CFD, we don't match the physical topology to the computational topology, because we don't (usually) build the physical topology. But I can and do match the computational topology to the physical one.

Of course, as soon as any two articles get identified as being far apart in this game of golf, someone will edit the articles to mention this fact, thereby reducing their distance to 1. Quite the paradox!

Poster 1) Unity is and always will be an unholy mess.
Poster 2) Unity is a massive leap forward in modern functionality, and anyone that simply gives it an honest try will agree.
Poster 1) I have tried. I don't want to learn new things and shouldn't have to. I had to switch to xfce.
Poster 3) APPLE APPLE APPLE
Poster 4) Seriously, Windows 8? Really?
Poster 5) You all should really give gnome3 another chance, it's really almost acceptable to use now.
Poster 1) Ubuntu is dead to me.
Poster 6) Remember NeXT?

Particularly for Nathan,

I'm a PhD student in computational fluid dynamics, and I've recently grown interested in plasma simulations. My experience stems largely from aeronautics, where CFD methods are very well studied and well validated for large ranges of turbulent flows. In these cases, we often have well detailed experimental data for verification; of what I know about tokamaks, this level of experimental detail is somewhere between nonexistent and impossible to acquire.

Do you see techniques from direct numerical simulation (DNS) or large eddy simulation (LES) becoming important as a primary tool in tokamak/plasma research as they presently are in more standard fluids? Can you remark on some of the computational challenges that makes tokamaks more difficult than say, multi-species combustion simulations?

Who really cares if mutants get the flu? The less monsters the better, I say.

Well yes, of course. That's the entire purpose of uncertainty prediction, and HPC simulations in general. In any kind of complex numerical simulation (say, turbulent aerodynamics), the accuracy with which you can simulate a given physical situation is entirely constrained by your available computational power. You must find a balance between the level of detail you need versus computer power available (i.e., direct numerical simulation of turbulence for a full-sized aircraft is both entirely unfeasible computationally, and provides drastically more information than is necessary for analysis). These are well-studied problems, and not "guesswork" as you seem to imply. Extending that to a situation where the inputs themselves are uncertain clearly is a situation where more computer power leads to more accurate results. Basic statistics tells you the more data points you have (in this case, results from a range of inputs), the more reliable your predictions of uncertainty.

Don't read too much into it. It's a utexas.edu news bite about an upcoming large research project at... UTexas. Literally every major university's website has a front page link about a big new research project on campus.

As a researcher in computational sciences (and chaotic systems) similar to the news blurb posted here, no. There are many methods for dealing with chaotic/uncertain inputs. Monte Carlo approaches, for example.

I'm a Princeton graduate student (and somewhat shocked I got this news via slashdot.) My scientific papers are in LaTeX, properly formatted using custom journal templates, use high quality vector graphics, and are well edited and corrected.

Thanks.

You're speaking specifically about programming courses here, something that is uniquely suited to text-only communication by the nature of the beast.

As you admit, classes teaching complex physical phenomena like an engineering course is not amenable to online classes.

While true, I can say for certain after several years of engineering grad school and TAing undergrad classes at all levels, that a very very firm grasp on the material in those first 2-3 years is the most important. Higher level material is worthless without solid fundamentals. So, just because the courses are often very large, and oftentimes more "dry" than later more advanced courses, it's a mistake to paint them as any less important.

Why do people that aren't black defend people who are?
Why do people that aren't gay defend people who are?
Why do people that aren't elderly defend people who are?
Why do people that aren't impoverished defend people who are?
Why do people that aren't _____ defend people who are?

"They have something I want, so I should get it" is not a valid basis for taxation. You're doing nothing but scapegoating the wealthy. The "tyranny of the majority" doesn't just apply to the classic civil rights issues, you know. You have no right to take someone else's money just because you have a larger voting bloc.

Point?

You've exactly described class warfare. One class (that 99%) attacking another (the 1%). The wealthy are simply being treated as an incredibly easy scapegoat.