Besides, why should the tutors care? - If people waste the lessons updating Facebook instead of getting smart, they'll simply fail and thus have wasted their tuition. I hope Facebook was worth it, but the tutors shouldn't care less if the students are that stupid.
Because most teachers go into teaching to get students to learn? Because a lot of institutions tie student performance into their evaluations? Because students that aren't paying attention are more likely to distract their neighbors? etc etc...
Yes, Shared Nothing does work but it puts a limit on how many cores you can ultimately use. You won't get speedups from processors with more and more cores.
Nope. You got that exactly backwards. As the number of parallel tasks increases, synchronizing shared resources (and other communication in general) starts to dominate the decrease in efficiency. Look at erlang and its ability to run (and keep fed) 10's of thousands of threads simultaneously.
Your example of partitioning a loop into N tasks is exactly mappable to a shared-nothing architechture (assuming there is nothing that needs to be shared between separate iterations of the loop)
ended the War in Iraq with more or less of a defeat rather than a victory
From the sounds of the rest of your post, you don't support us being at war with other countries. If so, what is the third option that you wanted Obama to take? I pretty much only see "stay in there, commit more time/resources/lives and try to make things better" or "cut our losses, get out, support them where we can and where we're needed/wanted". What could've been done to make the "more or less of a defeat" into a victory while simultaneously leaving?
Sorry if I'm misunderstanding Ron Paul's position (I'm sure someone will correct me if I'm wrong...), but wouldn't his opposition to the DOE (not a power granted to the executive by the constitution, etc..) also shoot down him supporting however many independent agencies, each supporting a subset of the powers the DOE used to have?
*shrug* I've never done OSX coding (beyond posix-ish porting of some code from linux), so I have no idea of how things are implemented under the hood. I think quicksilver's open source (?) though, so that might be somewhere to look?
And then there's OS X's inability to send keystrokes to any application other than the one in front. What a huge UI fumble. Got the ability to remotely control an app by sending it keystrokes? Too bad. Won't work under OSX unless the app is already active, in which case, you're not remote controlling it, because the app attempting the control has lost the focus.
I have a couple applications on OSX that can accept keystrokes without being the active application (specifically, notational velocity, quicksilver and VLC (though it's limited to just eating the play/pause-next/previous keys)
In fact, neutrinos have most of the right properties to be dark matter, except that other observations rule them out
their masses are way way too small to account for dark matter. I remember a back-of-the-envelope calculation that shows that if you packed enough neutrinos into galaxies to account for the missing mass currently accounted for by dark matter, their interaction cross sections would end up being large enough to be observable. We don't see anything spraying off those interactions, so that can't be the explanation
There is NO other evidence for it. So an entire new classification of matter that no one has ever (or can ever) seen, felt, or observed was created to satisfy this one anomaly. And yet, this is the industry standard, that 90% of all matter must be Dark Matter just because someone screwed up when calculating orbital momentum.
What's more implausible, that 90% of matter is something that we'll never observe except, conveniently, through the orbital momentum of stars, or that galaxies have a noticeable gravitational pull on objects in nearby galaxies over billions of years?
Which one is it? Also, the guy below beat me to the observations.
Conventional leap of faith: this strange unseen matter exists and interacts gravitationally but somehow isn't available on Earth, cannot be created or observed or studied in a lab,
Unless supersymmetry is RP-conserving.
Electrical leap of faith: electrical processes explain the lack of mass through the electric force which is many orders of magnitude stronger than gravity and is more effective at long distances and is the only logical explanation for light-years-long jets of matter (Birkeland currents), can be observed in any laboratory with modest equipment and is known to scale both up and down, and through processes not yet understood there is enough charge separation in the Universe to provide the potential difference to cause these circuits to flow.
If you're willing to believe that far off galaxies have ridiculous amount of charge separation (something we have no theories or experimental evidence for), then believing that there are weakly interacting massive particles or other forms of dark matter can't be a stretch. Electromagnetism is strong (relatively), there would have to be something really trying to hard to convince the different charges to keep apart
I wonder how long it will be before science is forced to throw out dark matter and embrace electrical effects. Ten years? Twenty?
It's not a matter of time, it's a matter of evidence. If you can come up with a self-consistent theory that explains these electrical effects and have predictable effects that can be measured then you can have your moment in the sun.
If it's a standalone system, what's to keep someone from reading up till the point before the hack, removing the "incriminating" lines then replaying the rest of the lines, doing the same hashing procedures as normal?
It's my understanding from reading the articles from a guy who managed to hack it onto the 3GS that the 4S actually has some pretty good voice canceling hardware onboard. Whether or not that's true, I can't say, but from the article I read, apparently things needed to be VERY quiet or the text-to-speech would fail hard.
And like I said, it was just an example. There's obviously more optimizations than just inlining.
Even well-separated and intelligently written software benefits from the compiler doing smart things, and to do that, it needs as much information as possible. Also, a *ton* of the memory usage for compiling something that large comes just from the bookkeeping required to keep track of debug information.
Are you being obtuse? No, you're obviously not inlining 12GB worth of functions, I was just giving an example of an optimization that benefits from combining the code into one compilation unit, so you can make an intelligent decision on what can be optimized away.
No, you can perform better optimizations if you know, for instance, that a function can be inlined. You can't get that if some of the uses are in other compilation units.
Maybe they'll fix the piss-poor OSX version. I reverted back to 2.x, and try the 5.x revisions occasionally, but they just have the worst interface ever.
On a side note, it would be nice if someone could crack the skype protocol and, say, add it to something like libpurple, then we wouldn't have to worry about things like that.
no. You can concoct schemes where things are traveling the speed of light, but you can't use it to transmit information faster than a speed of light. Consider, for instance, if you were in a hollow sphere with a radius of one light year and had a really powerful laser. Now, you could move the light as quickly as you want, and the beamspot on the wall will travel faster than the speed of light, but you can't actually transfer information faster than C that way. Another phenomenon is the difference between group and phase velocity.
So, this is me not knowing the field very well, but why wouldn't Intel need to be worried about these devices? A significant part of the x86 market is people running simple word-processing, web-browsing applications that don't demand a lot of CPU power.
Additionally, (and it's probably worth a different thread) but why doesn't intel just release ARM processors? If Microsoft is releasing an ARM port of Windows8, theoretically, a lot of people (at least the big guys) will be porting their applications to ARM as well.
The problem is that in china, they probably have as many people watching the internet for traffic about meeting up as there are "revolutionaries". Remember at the beginning of the arab uprisings when people tried to organize flashmobs? Wherever they decided to meet would be FLOODED with police beforehand.
Hell, my friends in shanghai have to get a permit to have an expat book-club meeting because they have more than 30 people who show up.
Slashdot Mirror
Besides, why should the tutors care? - If people waste the lessons updating Facebook instead of getting smart, they'll simply fail and thus have wasted their tuition. I hope Facebook was worth it, but the tutors shouldn't care less if the students are that stupid.
Because most teachers go into teaching to get students to learn? Because a lot of institutions tie student performance into their evaluations? Because students that aren't paying attention are more likely to distract their neighbors? etc etc...
bluetooth mouse support
I don't wear underwear when I fly anymore
Yes, Shared Nothing does work but it puts a limit on how many cores you can ultimately use. You won't get speedups from processors with more and more cores.
Nope. You got that exactly backwards. As the number of parallel tasks increases, synchronizing shared resources (and other communication in general) starts to dominate the decrease in efficiency. Look at erlang and its ability to run (and keep fed) 10's of thousands of threads simultaneously.
Your example of partitioning a loop into N tasks is exactly mappable to a shared-nothing architechture (assuming there is nothing that needs to be shared between separate iterations of the loop)
I am *constantly* bringing electronics with me when I go to brazil for different people in my family. That electronics import duty is ridiculous.
searching around, it's possible the guy two levels up swapped department of energy with department of education (which ron paul certainly opposes)
ended the War in Iraq with more or less of a defeat rather than a victory
From the sounds of the rest of your post, you don't support us being at war with other countries. If so, what is the third option that you wanted Obama to take? I pretty much only see "stay in there, commit more time/resources/lives and try to make things better" or "cut our losses, get out, support them where we can and where we're needed/wanted". What could've been done to make the "more or less of a defeat" into a victory while simultaneously leaving?
Sorry if I'm misunderstanding Ron Paul's position (I'm sure someone will correct me if I'm wrong...), but wouldn't his opposition to the DOE (not a power granted to the executive by the constitution, etc..) also shoot down him supporting however many independent agencies, each supporting a subset of the powers the DOE used to have?
*shrug* I've never done OSX coding (beyond posix-ish porting of some code from linux), so I have no idea of how things are implemented under the hood. I think quicksilver's open source (?) though, so that might be somewhere to look?
And then there's OS X's inability to send keystrokes to any application other than the one in front. What a huge UI fumble. Got the ability to remotely control an app by sending it keystrokes? Too bad. Won't work under OSX unless the app is already active, in which case, you're not remote controlling it, because the app attempting the control has lost the focus.
I have a couple applications on OSX that can accept keystrokes without being the active application (specifically, notational velocity, quicksilver and VLC (though it's limited to just eating the play/pause-next/previous keys)
In fact, neutrinos have most of the right properties to be dark matter, except that other observations rule them out
their masses are way way too small to account for dark matter. I remember a back-of-the-envelope calculation that shows that if you packed enough neutrinos into galaxies to account for the missing mass currently accounted for by dark matter, their interaction cross sections would end up being large enough to be observable. We don't see anything spraying off those interactions, so that can't be the explanation
There is NO other evidence for it. So an entire new classification of matter that no one has ever (or can ever) seen, felt, or observed was created to satisfy this one anomaly. And yet, this is the industry standard, that 90% of all matter must be Dark Matter just because someone screwed up when calculating orbital momentum.
What's more implausible, that 90% of matter is something that we'll never observe except, conveniently, through the orbital momentum of stars, or that galaxies have a noticeable gravitational pull on objects in nearby galaxies over billions of years?
Which one is it? Also, the guy below beat me to the observations.
Conventional leap of faith: this strange unseen matter exists and interacts gravitationally but somehow isn't available on Earth, cannot be created or observed or studied in a lab,
Unless supersymmetry is RP-conserving.
Electrical leap of faith: electrical processes explain the lack of mass through the electric force which is many orders of magnitude stronger than gravity and is more effective at long distances and is the only logical explanation for light-years-long jets of matter (Birkeland currents), can be observed in any laboratory with modest equipment and is known to scale both up and down, and through processes not yet understood there is enough charge separation in the Universe to provide the potential difference to cause these circuits to flow.
If you're willing to believe that far off galaxies have ridiculous amount of charge separation (something we have no theories or experimental evidence for), then believing that there are weakly interacting massive particles or other forms of dark matter can't be a stretch. Electromagnetism is strong (relatively), there would have to be something really trying to hard to convince the different charges to keep apart
I wonder how long it will be before science is forced to throw out dark matter and embrace electrical effects. Ten years? Twenty?
It's not a matter of time, it's a matter of evidence. If you can come up with a self-consistent theory that explains these electrical effects and have predictable effects that can be measured then you can have your moment in the sun.
fuck, I completely missed that like 30 other people said what I just commented :/
If it's a standalone system, what's to keep someone from reading up till the point before the hack, removing the "incriminating" lines then replaying the rest of the lines, doing the same hashing procedures as normal?
If you're already doing that, then why don't you just ship ALL of the logs to another host every minute?
I feel like that sort of bootstrapping is normal. GCC's written in C, afterall.
It's my understanding from reading the articles from a guy who managed to hack it onto the 3GS that the 4S actually has some pretty good voice canceling hardware onboard. Whether or not that's true, I can't say, but from the article I read, apparently things needed to be VERY quiet or the text-to-speech would fail hard.
And like I said, it was just an example. There's obviously more optimizations than just inlining.
Even well-separated and intelligently written software benefits from the compiler doing smart things, and to do that, it needs as much information as possible. Also, a *ton* of the memory usage for compiling something that large comes just from the bookkeeping required to keep track of debug information.
Are you being obtuse? No, you're obviously not inlining 12GB worth of functions, I was just giving an example of an optimization that benefits from combining the code into one compilation unit, so you can make an intelligent decision on what can be optimized away.
No, you can perform better optimizations if you know, for instance, that a function can be inlined. You can't get that if some of the uses are in other compilation units.
Maybe they'll fix the piss-poor OSX version. I reverted back to 2.x, and try the 5.x revisions occasionally, but they just have the worst interface ever.
On a side note, it would be nice if someone could crack the skype protocol and, say, add it to something like libpurple, then we wouldn't have to worry about things like that.
no. You can concoct schemes where things are traveling the speed of light, but you can't use it to transmit information faster than a speed of light. Consider, for instance, if you were in a hollow sphere with a radius of one light year and had a really powerful laser. Now, you could move the light as quickly as you want, and the beamspot on the wall will travel faster than the speed of light, but you can't actually transfer information faster than C that way. Another phenomenon is the difference between group and phase velocity.
So, this is me not knowing the field very well, but why wouldn't Intel need to be worried about these devices? A significant part of the x86 market is people running simple word-processing, web-browsing applications that don't demand a lot of CPU power.
Additionally, (and it's probably worth a different thread) but why doesn't intel just release ARM processors? If Microsoft is releasing an ARM port of Windows8, theoretically, a lot of people (at least the big guys) will be porting their applications to ARM as well.
The problem is that in china, they probably have as many people watching the internet for traffic about meeting up as there are "revolutionaries". Remember at the beginning of the arab uprisings when people tried to organize flashmobs? Wherever they decided to meet would be FLOODED with police beforehand.
Hell, my friends in shanghai have to get a permit to have an expat book-club meeting because they have more than 30 people who show up.