Feeds

* Posts by asdf

3543 posts • joined 7 Apr 2007

Nvidia's new CUDA 6 has the 'most significant new functionality in the history of CUDA'

asdf
Silver badge

Re: English?

>I think asdf is saying that where you need performance you need to keep your data in the fast on-board GPU memory rather than mainboard and using a system that makes it all look like one big memory pool will mean you load the slower mainboard memory more than a tuned application that has synced its data into the GPU space ready for processing.

Basically yes. If a developer is not aware of the performance characteristics of the different memory and buses (architecture in general) they may sloppily end up throwing data around needlessly negating much of the massive parallelism available as the system is spending a lot of time waiting for data to become available.

0
0
asdf
Silver badge

Re: Hmm

>Which is exactly the kind of rubbish I hear C++ developers saying when they talk about .NET.

.Net was so great that Microsoft used it for all their own products huh (the one time they used WPF for example in VS10 it was an epic buggy sluggish fail)? Its so great for system programming they built Win8 and Metro on it as well huh (hint: no they abandoned it) ? .Net is ok for the kind of things VB6 was being used for in the past but has nowhere near the utility in different situations on different platforms as standard C/C++.

0
0
asdf
Silver badge

Re: Hmm

>It'd be good to have naturally parallel things scale automatically between appropriate cores on those, wouldn't it? GPGPU isn't going to be exclusively for the HPC niche forever.

Great point. Yeah that makes sense.

0
0
asdf
Silver badge

Re: Hmm

Looks like I just had to RTM (links) to find the answer

"An important point is that a carefully tuned CUDA program that uses streams and cudaMemcpyAsync to efficiently overlap execution with data transfers may very well perform better than a CUDA program that only uses Unified Memory. Understandably so: the CUDA runtime never has as much information as the programmer does about where data is needed and when! CUDA programmers still have access to explicit device memory allocation and asynchronous memory copies to optimize data management and CPU-GPU concurrency. Unified Memory is first and foremost a productivity feature that provides a smoother on-ramp to parallel computing, without taking away any of CUDA’s features for power users."

Just what I thought. This convenient great new feature is going to allow hacks who don't really understand parallel programming to think they do and possibly negate much of the benefits of computing with CUDA on GPUs. Think .Net for CUDA. Managed language features have no business in production HPC environments IMHO.

1
0
asdf
Silver badge

Re: Hmm

Its also been my experience in general when a feature is introduced to a language that can be abused its almost guaranteed it will be so and it will be in code I have to maintain.

0
0
asdf
Silver badge

Hmm

I am sure some expert on here will correct me, but personally when I hear a system is abstracting memory allocation I get concerned especially if doing HPC code (again only dabbled in that world). Explicitly requiring a copy at least makes the developer aware he is about to request a potentially expensive operation. I could see though how it would improve code readability but in the HPC world that usually is not always the highest priority compared to performance correct?

0
0

MtGox chief Karpelès refuses to come to US for g-men's grilling

asdf
Silver badge

Re: Boring Cluetard Matt Bryant Manure

Wow you guys are a lot more patient that me. I could only take about 5 of Bryant's crap posts before being like time to move on. My eyes glazed over bored with propaganda and slant.

1
0
asdf
Silver badge
Trollface

Re: Whay the need to travel to the USA when ...

>You fly in from overseas .. you aren't going to look very good

I assume you mean in a private jet or something because I don't think showing up with your private yacht would be any better.

0
1
asdf
Silver badge

Re: I wouldn't want to set one foot on American soil either...

@Michael touche. Don't get me wrong I hate many of the things my government (US) does but it is easy to see some hypocrisy and smugness coming out of the UK readership that perhaps doesn't know or have forgotten their own colonial history. Even today their government commits some of the same transgressions as the evil empire.

3
0

Batten down the hatches, Ubuntu 14.04 LTS due in TWO DAYS

asdf
Silver badge

Re: @asdf The desktop deadend.

>Can I do a major version upgrade of Mint yet without backing up/reinstalling from scratch/restoring? No? Bye then!

You can with LMDE quite easily but they are are called update packs instead of versions. Still that said honestly LMDE though very very stable does not keep up with security updates worth a darn. Debian testing is much better but sadly they break cinnamon and other mint specific stuff too much. Guess I could try Arch next but have problems for some reason getting many linux distros to install right on old Mac Pro (even verified correct install CDs will freeze at boot screen etc, fuck EFI32 and Apple for pushing EFI in general). LMDE is still the only one that worked right off the bat.

0
0
asdf
Silver badge

Re: The desktop deadend.

Ubuntu jumped the shark some time ago. At least they provide a decent base for Mint I guess (though I am more of a LMDE user myself).

8
1

Obama allows NSA to exploit 0-days: report

asdf
Silver badge

Re: RE: PKE

Yeah the US government tried that to before they realized the rest of the world had figured out public key encryption as well.

0
0
asdf
Silver badge

Re: You know what would be cool?

Actually this is about pork but not just the contractors. Now the war on terrorism has wound down the warhawks need to find some new sexy way to get pork and pushing the new cool cyberwar threat is a way to do it. Its more in vogue and lucrative to start a new war than to boringly secure our current infrastructure.

0
1
asdf
Silver badge

Re: You know what would be cool?

But then the macho wannabe warrior private contractor nerds couldn't justify all that pork they get.

0
0
asdf
Silver badge

Re: 'a clear national security or law enforcement need'.”

>a clear national security or law enforcement need

IE a pesky senator that is asking too many questions and has a mistress.

1
0
asdf
Silver badge
Trollface

Re: No turning back now.

Most suburban white Americans will make horrible slaves. Fat middle age people can't lift lumber for shit.

1
0
asdf
Silver badge

nice try

There is a huge difference between inventing something new only you use and intentionally gimping or exploiting software everyone (including the people you are supposed to protect) else uses.

2
1
asdf
Silver badge

Re: Coming soon...

Yeah too bad there are plenty of security researchers in the rest of the world not to mention 6+ billion other people not in the US that could give a toss what the US government says.

2
0
asdf
Silver badge

so very stupid

One could make a very strong argument that no other country in the world can be harmed as much by zero days as the United States (infrastructure, business, etc). Zero days are almost always a double edged sword with it being virtually impossible to know if you are the only one who knows about it and exploiting it (the bad guys will probably figure out if only your country gets the patches). Therefore you would think if the NSA truly cared about protecting Americans they would more defensive than offensive. Seems pretty obvious that defending the US public is not their number one priority.

0
1

Tom Ridge: Private sector lagging in cybersecurity

asdf
Silver badge

Re: "Warfighters"? Faggot (in the nongay sense) detected!

Sadly this is usually the one function (warfighting) of government even many on the right defend the most.

1
1
asdf
Silver badge

>wasn't warfighter the name of a really bad medal of honor game?

One so bad that it not only killed the franchise but it killed the studio who made it.

1
0
asdf
Silver badge
Thumb Up

haha

>Simpleton Bush language still smouldering out there

I nominated for QoTW.

1
1

Oz bank in comedy Heartbleed blog FAIL

asdf
Silver badge

Re: Surprise!

>why IIS is now used by a third of the world's websites.

Wow I guess Microsoft is counting dev and test machines with IIS installed now then based on those numbers. Golf clap to them. Still I will be the first to admit they have came a very long way security wise in the last decade. Especially with the legacy garbage they started with.

1
1

BlackBerry not afraid to throw its mobe biz under a bus, says CEO Chen

asdf
Silver badge

Re: And now he is back-peddling...

>"If I cannot make money on handsets, I will not be in the handset business."

What he meant to say if BB runs out of money and can't borrow more it obviously won't be in any business.

1
0

Revoke, reissue, invalidate: Stat! Security bods scramble to plug up Heartbleed

asdf
Silver badge

Re: Robin Seggelmann You Asshat|Not so fast!

I won't deny a whole lot other people are responsible as well (though not me, except for not reviewing more open source code I guess). Still if you are writing code half the world uses you really need to get it right. Any patch to very base open source projects needs to be really be reviewed very carefully. We all make mistakes but we all don't post patches for software millions of other people use and rely on either.

0
0
asdf
Silver badge
Trollface

Robin Seggelmann You Asshat

Bet its not fun being Robin Seggelmann right about now. My guess is he has seen his name next to the word asshat more than once in the last few days.

1
0

Anatomy of OpenSSL's Heartbleed: Just four bytes trigger horror bug

asdf
Silver badge

Re: I don't get it..

I'll take the downvotes on posting the author's name above. Yes its a common mistake but if you are going to screw up code make sure its not code half the world uses. And yes many other people are responsible as well including especially his main reviewer Stephen Henson (a Brit I assume).

2
4
asdf
Silver badge

Re: I don't get it..

Just to shame the asshat that caused all this misery. Robin Seggelmann you sir are nobody's hero right about now.

0
18

Dimwit hackers use security camera DVRs as SUPER-SLOW Bitcoin-mining rig

asdf
Silver badge

hmm

>Known as a "salami swindle"

Maybe but pretty sure if you pop over to urbandictionary.com the kids may being using that word for something else lol.

0
0

USA opposes 'Schengen cloud' Eurocentric routing plan

asdf
Silver badge
Mushroom

sigh

Bring on the Merkin bashing. Our %1ers have earned it. They don't care though because with two identical in all but rhetoric, political choices to distract the US populace I guess they could care less how the rest of the world view us.

14
7

Torvalds rails at Linux developer: 'I'm f*cking tired of your code'

asdf
Silver badge
Thumb Down

Re: Mozilla

Those sensitive gay people ruin everything huh? At least the UK establishment has never persecuted gay computer scientists. Oh wait that's right they basically murdered one of the greatest in history.

10
8

One Win 8 to rule them all: Microsoft talks up 'universal apps' for PCs, slabs and mobes

asdf
Silver badge

Re: "developers of all skill levels"

Comment of the week.

1
0

BlackBerry and T-Mobile try $100 bribe to lure BBers to their side

asdf
Silver badge
Trollface

BB rules!

>"In fact, to show our appreciation for all current consumers so passionate and loyal to all things BlackBerry

The executive could probably have taken a morning or so and sent handwritten notes to all 16 of them himself.

1
0

US judge tells Marvell to pay Carnegie Mellon Uni $1.5bn in patent fallout

asdf
Silver badge

Re: There is a point...

Yeah why did I get down voted? I was just stating a fact. As others say if the SCOTUS doesn't hear the case as usually happens the last court judgement before stands. Yes the system sucks bad in many cases (corporations are people too and money is free speech) but that is how it works.

>To whom do you appeal - or can you just refuse the pay the fines etc on the grounds that you are not being granted

You appeal to no one else unless you are those douche bag Twinklevii. Refusing to pay fines imposed by a court seldom ends well for a plaintiff. At least in the US judges have the ability to put significant hurt on you for non compliance.

0
0
asdf
Silver badge

Re: There is a point...

>If, however, you continue to sue and appeal, it will eventually reach the Supreme Court.

And the Supreme Court in the vast majority of cases refuses to hear the case.

0
1
asdf
Silver badge

Re: Do juries get this sort of thing right more often that tossing a coin?

Big pharma especially is good at using public research money in universities to discover and test their drugs.

1
0
asdf
Silver badge

Two words, billable hours. The scenario you described probably only happens once one party has ran out of money.

1
0
asdf
Silver badge

Re: Do juries get this sort of thing right more often that tossing a coin?

>I have no idea if CMU have invented anything

They have, including one of the first microkernels, Mach which in a convoluted way is the ancestor to Mac OS X kernel and that is just in computer science. From what I understand CMU are in the upper echelon of universities producing practical science in many other fields as well. I am generally not a big fan of patents (especially software patents) but I also know a whole lot of science produced in universities has been misappropriated by the private sector without fair compensation and in the case of public universities (not here I believe) that is basically stealing from the taxpayer.

5
0
asdf
Silver badge

>"Under the correct claim construction, the asserted CMU patent claims are invalid and not infringed; and even if infringement were found, any damages should have been commensurate with the nominal license fees that CMU previously obtained from others," the firm has said

Got to love douche bag lawyer talk. Because Carnegie Mellon is such a gold digger who never invented anything huh? And in general if you want favorable license fees then don't force a entity to sue and win on judgement first. Stealing IP I guess can be a good business model but not the way Marvell is doing it.

4
1

Money? What money? Lawyer for accused Silk Road boss claims you can't launder Bitcoin

asdf
Silver badge

Re: Excellent points

>The law isn't about right or wrong, justice or injustice

No its about who has the most money. Innocent until proven broke. Which the government seems to have a done a good job on him already. Bet that is one reason the lawyer wants the bitcoins returned.

7
2
asdf
Silver badge

hmm

He is going away for decades and it will have nothing to do with bitcoins. They are going to nail his ass on conspiracy to commit murder (6 counts even) which is a fairly sound legal concept at this point. At best he is just eliminating some concurrent sentencing.

3
0

China's CERT blames US for a THIRD of all attacks on Middle Kingdom PCs

asdf
Silver badge
Linux

Re: security......security.........security

Or installed with *nix in which case you can leave out the genuine malware (only need an MD5) and as well as the antivirus bloat to slow down the machine.

0
0

Amazon is decompiling our apps in security gaffe hunt, says dev

asdf
Silver badge

Re: Dissembling and Reverse Engineering's A Crime, Isn't It?

>how long before this becomes a universal crime.

It won't if the Euros show some backbone.

1
0
asdf
Silver badge
Mushroom

Re: No hacking!

Luckily that draconian law is only valid in the United States of Corporate Whores. It is God's chosen land or so they drill into us though. God loves corporations after all. That's why they will soon have religious beliefs over here.

8
2

First pics: Comet-chaser Rosetta hurtles towards icy prey, camera in hand

asdf
Silver badge
Megaphone

Go Euros!

Funny how much better your space program is when you aren't borrowing the grandkids money to start wars for fun. Especially when you are relying on your frenemy to even get into space but I digress. Still keep up the good work Euros. Science benefits us all.

0
0

ICO plugs XSS vuln in its website. Only took watchdog FIVE YEARS

asdf
Silver badge
Trollface

Re: Turning circle of a...

meatspin ... never mind shock sites are not cool.

0
0

GNOME 3.12: Pixel perfect ... but homeless

asdf
Silver badge

Re: GNOME is done, they just don't realize it yet

I agree but you really should put the nuclear fire icon on the post.

0
0