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Submission + - Lucid Logix Hydra Multi-GPU Performance Unveiled ( 2

MojoKid writes: About a year ago, semiconductor startup Lucid Logix began making waves in the graphics space with claims of being able to revolutionize multi-GPU computing, promising consumers the ability to pair any graphics card, unrestricted by model or vendor, to another card and achieve highly efficient load balancing with near linear performance increases. This option presumably provides consumers the flexibility to buy an ATI graphics card, install it next to an NVIDIA model on the same motherboard, and see a boost in graphics rendering performance close to the sum of both individual components. Today Lucid Logix has taken the wraps off initial pre-production product with a quick performance evaluation at HotHardware that shows the potential with the technology. The benchmark numbers look promising though reportedly there are still a few compatibility issues to wring out.

Comment You must have missed the Go specification... (Score 4, Insightful) 831

C++'s templates offer a lot more than just generics (which is what you're talking about when you say "type safe containers and reusable algorithms"), however Go does, in fact, provide for this with its "interfaces." The Go interface affords for both data abstraction (akin to C++'s inheritance hierarchy), and generic programming. Go provides an "Any" container, which "may be used to implement generic programming similar to templates in C++".

It's worth noting though that this is a dynamically bound language feature, which means it is checked and enforced at runtime rather than compile time -- both a positive and a negative depending on how you look at it. It provides for some more interesting programs to be written that do fun things at runtime, but on the down side it means you lose a lot of the compile time type-checking that C++ provides and can save a lot of debugging time later on. It also means that you can't do any template metaprogramming with Go -- again which can be viewed as a positive or a negative.

I also challenge you to come up with a solution that equates to Go's built in Channel's in less than 100 lines of C++. What you're actually saying is you "can implement Go's Goroutine's AND Channels in less than 100 lines of code in portable, cross platform, C++". But, let's give you the benefit of the doubt and say that you've already go some mechanism for emulating a Goroutine (which by the way allows one to "mutiplex independently executing functions onto a set of threads"). I think _just_ the thread safe code that would implement all the necessary locks and barriers for a _single_ platform would probably be more than 100 lines, and would not be portable (ie, it would be pthreads, or win32 specific).

I am open to being wrong about that, but I really do believe that you haven't spent much time investigating Go, and are therefore spreading FUD. For example your assertion that "in Go, a List class would have to use void* types, throwing type safety out of the window" is just plain wrong.

I should also point out that I am in no way a Google Go fanboy. I see it as a pseudo-interesting low-ish level language that I haven't quite been able to envision the proper use for yet. I don't really buy Google's claim that it's a system level language (I can't see myself wanting to write an OS or device driver in it). To me it seems more like a great way to rapidly build efficient client / server type applications.


Whistleblower Claims IEA Is Downplaying Peak Oil 720

Yesterday the Guardian ran a story based on two anonymous sources inside the International Energy Agency who claimed that the agency had distorted key figures on oil reserves. "The world is much closer to running out of oil than official estimates admit, according to a whistleblower at the [IEA] who claims it has been deliberately underplaying a looming shortage for fear of triggering panic buying. The senior official claims the US has played an influential role in encouraging the watchdog to underplay the rate of decline from existing oil fields while overplaying the chances of finding new reserves." Today the IEA released its annual energy outlook and rejected the whistleblowers' charges. The Guardian has an editorial claiming that the economic establishment is too fearful to come clean on the reality of oil suppplies, and makes an analogy with the (marginalized, demonized) economists who warned of a coming economic collapse in 2007.

Comment Re:.01 and the TV Myth (Score 2, Informative) 329

The reality is you spend all your time fiddling with it and cursing at it until your head is so bloody from banging it up against a brick wall that you give up and decide to give up TV altogether.

Close. The reality is that you spend so much time banging your head up against a brick wall that you just think you're watching TV.

I know that these are funny, but just so people know, it's really not true. Setting up MythTV is really quite easy, and if you're building a box specifically to run mythtv hardware support is a complete non-issue. Get one of the better capture cards (check the support list), and everything Will Just Work.

I've been running Myth for years, and there was a time when installing it was problematic to say the least, but seriously, setting up MythTV these days is no harder than installing an app from your package manager, running through a few configuration screens, maybe signing up for a listing service. That's it!

Comment Re:I can bring food (Score 2, Informative) 247

You usually can't get food past security... And you certainly don't want to have any left when you land in a foreign country or you could face stiff fines for illegally importing food.
This is also why the food is overpriced, since you have no other alternative.

Not sure what countries you are flying to and from, but I've done a fair bit of air travel in my life to varying countries around the world, and I've never once had a problem bringing my own food.

Of course you can't bring your own water (that must be purchased after the security check point), but as long as you're okay with your food being pelted with x-rays (which is undoubtedly healthier than the food typically sold in most airports), you should be fine.

Of course there are restrictions on certain types of edibles, mostly fresh fruit and other things with seeds. Just pre-package a meal with your fruits in it all cut up, and they won't say anything.

Comment Re:Scary (Score 0, Offtopic) 573

Are you American by chance? I only ask because I sense a hint of that "right to bear arms" philosophy there.

I'm sorry to inform you, but you've been brainwashed. There have been many studies done by reputable groups showing a direct correlation between firearm availability and gun deaths. (Staring point:

I think it's a valid extrapolation to apply such logic to nuclear weapons, since world leaders are pretty much like children (but with infinite money, power, and weapons).

Simply put the more of these we have, the more chance we have of using them. And no I am not happy the US has a ton of them, but it's a lot better to have as few countries as possible with the ability to destroy the planet, rather than the other way around.

Comment Re:Work Experience (Score 5, Insightful) 834

In some fields, but not in CS. A masters doesn't get you more money. What gets you more money is experience, especially experience in the field you're looking for work in, and the ability to negotiate. There's just no point to extra years of school in CS, you learn on the job or through self study everything you'd learn in the masters courses.

Untrue. As someone who has (in the past 3 years) both tried to find a job with a Bachelor's degree and then with a Master's degree, I have personal first hand experience on this.

First of all a job will never teach you what you learn in a Master's program and vice versa. The experience of focusing on one problem and becoming a world expert on it is hugely different that working in a commercial setting. Unless your job is working in R&D and doing academic research, the two things are pretty polar.

Which brings me to my next point. In computer science _especially_ not only will a Master's degree open up doors that would have never been there if you simply had a Bachelor's but the pay will be higher.

This is a world where every one has an undergrad degree, and it's also a world in an economic recession. The best way to differentiate yourself from your peers is to spend the two years, and prove you that you can focus on one thing and become super knowledgeable. You'll have your undergrad degree to show you can learn a breadth of topics, and the Master's will be something that sets you apart from the other applicants.

I do agree that spending the time on a PhD is a complete waste, unless you want to go the pure academics route (and become a professor, etc). The pay over a Master's degree is negligible, and it may actually close some doors since the perception is there that you'll want a lot more money.

That being said I also agree that experience matters more than anything. Spend every summer working in your field. Take advantage of co-op and internship programs. Work part time doing anything related to the job you eventually want to get.

And absolutely yes, if you want a Master's degree, get one. It will help significantly, and it will also get you more money.

Comment CMake (Score 1) 371

Should I suck it up and learn to do all my programming in C++/Java/(insert other well-supported, popular language here) and unlearn ten years of philosophy, or is there hope for the multi-language development process?"

What you should do is suck it up and learn a modern build tool like CMake (which you even mentioned in your question).

I have successfully and painlessly used CMake as a build tool for multi-language projects. It's actually quite trivial -- you don't even need to do that much. For example, one source dir might use C++, another C, another D, etc, etc. It's no problem! CMake does all the hard work for you.

The whole question is actually moot to me. Multi-language development is alive and well and has been going on for a long time. It's not even a problem that really needs solving anymore.

Comment Re:you are wasting company money. (Score 5, Insightful) 310

I work for IBM, and we have a bunch of PS3's, ping pong, pool tables, shuffle board, fooseball, etc., that people can play whenever they want.

No it doesn't hurt productivity, in fact quite the opposite. Sometimes you just need to decompress, go do a few laps around a track, shoot a few balls, or get in some socializing with co-workers over a friendly game of ping pong.

The motto at IBM is that management trusts their employees. As long employees get their work done who cares what people are doing or when they're doing it!

You can just as easily slack off at your desk as you can in front of a game console. What people notice is results, and happy people produce better results.

I don't think you need to give every developer a console, and I think that would ruin a perfectly good opportunity to create more social interaction. Put all the games in common areas where people can gather.

I've solved more problems while chatting with colleagues on a break than I could begin to count.


Apple TV to be a Centrally Controlled P2P Network? 165

Rolgar writes "PBS' Bob Cringely theorizes that since the Apple TV will be an always-on device with a 40GB hard drive, Apple may move to content distribution via a P2P network. The ISPs will incur higher bandwidth locally, possibly lose some subscribers to cable TV, but have fewer costs through the Tier II Internet backbone providers. Bob also expects that Google will be involved with their fiber network and advertising expertise, and my hope is that they'll bundle in YouTube content as well. The article suspects that they won't get around to announcing the full details of this plan until they hit a half million units or more, and that this Apple and Google pairing will become the equivalent of a cable TV provider with almost none of the infrastructure costs. Eventually, he hopes, we'll see a real HD revolution from Apple and Google for this service." If Apple rolled something like this out to the service, would you bite on it? What would it take you to move to this over Tivo or MythTV?

Laser Turns All Metals Black 333

Roland Piquepaille writes "Researchers at the University of Rochester have found a way to change the properties of almost any metal by using a femtosecond laser pulse. This ultra-intense laser blast creates true 'black metal' from copper, gold or zinc by forming nanostructures at the surface of the metal. As these nanostructures capture radiation, the metals turn black. And as the process needs surprisingly low power, it could soon be used for a variety of applications, such as stealth planes, black jewels or car paintings. But read more for additional references and a picture of this femtosecond laser system."

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