adroit
Nov 15, 11:25 AM
That really depends on the program, on how "parallelizable" the application is.
The simplest way to think of it is like this: Let's say you have a program that first has to calculate A. Then, when it's done that, it uses the result of A to calculate B. Then, when it's done that, uses the result of B to calculate C, then C to D, and so on. That's a *serial* problem there. The calculation of B can't begin until A is done, so it doesn't matter how many processors you have running, all computation is held up on one spot.
On the other hand, let's say you have an application that needs to calculate A, B, C and D, but those four values are not dependent on each other at all. In that case, you can use four processors at the same time, to calculate all four values at the same time.
Think of it like baking a cake. You can't start putting on the icing until the cake is done baking. And you can't start baking the cake until the ingredients are all mixed together. But you can have people simultaneously getting out and measuring the ingredients.
So that problem is partially parallelizable, but the majority of its workload is a serial process.
Some software applications, just by their very nature, will never be able to do anything useful with multiple processors.
This is true, but there are still many many ways to optimize the multi-core processor that's not currently being use.
For example, I am waiting for a program to compile right now. Although I have a dual core on my computer, the compiler only compile one file at a time and usually takes about 10 min to do a full compile . If I have an 8 core computer with a multi-threaded compiler then I can cut the total time to jsut over a min + couple of seconds for linking time.
I think the main problem with muti-threading program is that it is difficult to implement, especially for coders who only knows high-level languages. Muti-threading in low-level program such as C is not easy but at least it is straight-forward. But trying to muti-thread high-level language such as VB or C# can get you into a big headace since everything is abstracted from the programmer. To do that, you need to get into unsafe code and call a bunch of DLLs, and it's easy to get memory leaks. Basically it can start to get very complicated, very quickly.
The simplest way to think of it is like this: Let's say you have a program that first has to calculate A. Then, when it's done that, it uses the result of A to calculate B. Then, when it's done that, uses the result of B to calculate C, then C to D, and so on. That's a *serial* problem there. The calculation of B can't begin until A is done, so it doesn't matter how many processors you have running, all computation is held up on one spot.
On the other hand, let's say you have an application that needs to calculate A, B, C and D, but those four values are not dependent on each other at all. In that case, you can use four processors at the same time, to calculate all four values at the same time.
Think of it like baking a cake. You can't start putting on the icing until the cake is done baking. And you can't start baking the cake until the ingredients are all mixed together. But you can have people simultaneously getting out and measuring the ingredients.
So that problem is partially parallelizable, but the majority of its workload is a serial process.
Some software applications, just by their very nature, will never be able to do anything useful with multiple processors.
This is true, but there are still many many ways to optimize the multi-core processor that's not currently being use.
For example, I am waiting for a program to compile right now. Although I have a dual core on my computer, the compiler only compile one file at a time and usually takes about 10 min to do a full compile . If I have an 8 core computer with a multi-threaded compiler then I can cut the total time to jsut over a min + couple of seconds for linking time.
I think the main problem with muti-threading program is that it is difficult to implement, especially for coders who only knows high-level languages. Muti-threading in low-level program such as C is not easy but at least it is straight-forward. But trying to muti-thread high-level language such as VB or C# can get you into a big headace since everything is abstracted from the programmer. To do that, you need to get into unsafe code and call a bunch of DLLs, and it's easy to get memory leaks. Basically it can start to get very complicated, very quickly.
aiqw9182
Mar 24, 03:16 PM
I'd rather have a CPU that is a bit slower for non-OpenCL tasks, than a computer that is faster at that but is unusable for other things because it doesn't have OpenCL.
Tad slower? If history repeats itself Intel's CPU will completely destroy AMD's offering. It won't be a bit slower, it will be a lot slower. Tell me when OpenCL suddenly becomes a requirement. Enjoy your vaporware bro. I'm sure your Llano machine will outperform Sandy Bridge in a few years when applications actually use the technology. Assuming said Sandy Bridge machine doesn't have discrete graphics. I'd love to know these apps you are using by the way and what your career is. If you are so serious about OpenCL then you shouldn't be purchasing a machine with an IGP to begin with.
Also I had a good chuckle at this:
http://forums.macrumors.com/showthread.php?p=12048219
"The future is fusion"
So you are a spokesperson for AMD?
Tad slower? If history repeats itself Intel's CPU will completely destroy AMD's offering. It won't be a bit slower, it will be a lot slower. Tell me when OpenCL suddenly becomes a requirement. Enjoy your vaporware bro. I'm sure your Llano machine will outperform Sandy Bridge in a few years when applications actually use the technology. Assuming said Sandy Bridge machine doesn't have discrete graphics. I'd love to know these apps you are using by the way and what your career is. If you are so serious about OpenCL then you shouldn't be purchasing a machine with an IGP to begin with.
Also I had a good chuckle at this:
http://forums.macrumors.com/showthread.php?p=12048219
"The future is fusion"
So you are a spokesperson for AMD?
iJohnHenry
Mar 19, 05:49 PM
If we one day figure out how to do fusion, and make electric cars work or something, we wouldn't give a crap about which leader kills eachother there.
Haven't you heard?
Cold fusion is being suppressed, for now, just like the 100 mpg carburettor was. :)
:rolleyes::rolleyes::rolleyes:
Haven't you heard?
Cold fusion is being suppressed, for now, just like the 100 mpg carburettor was. :)
:rolleyes::rolleyes::rolleyes:
vnle
Nov 27, 12:05 PM
Black Friday Goodies :D
Samsung LCD TV 40"
Black Wii
WD MyBook Elite 1.5 TB
Ikea Mount
Samsung LCD TV 40"
Black Wii
WD MyBook Elite 1.5 TB
Ikea Mount
mi5moav
Oct 23, 06:31 PM
Along with the macbook and MB pro getting updates, for $14.95 you can download an ipod nano or ipod patch/software that lets you listen to FM radio without having to purchase the radio remote. Interface is the same as with the remote.
OdduWon
Oct 23, 10:22 AM
So Macbooks next tuesday :confused:
yes on the 31 we shall have a trick and a treat... ...MACBOO
http://i82.photobucket.com/albums/j248/jonathaniliff/macboo2-1.jpg
yes on the 31 we shall have a trick and a treat... ...MACBOO
http://i82.photobucket.com/albums/j248/jonathaniliff/macboo2-1.jpg
carmenodie
Apr 19, 11:15 AM
the 27 imac is a beast!!!!!
God I wish I had the money to get it.
God I wish I had the money to get it.
RaceTripper
Jan 22, 09:17 PM
They make racing and sport seats
Right, Recaro makes race and sports car buckets. I doubt they make a single baby seat. They are probably licensing their name to it.
Right, Recaro makes race and sports car buckets. I doubt they make a single baby seat. They are probably licensing their name to it.
ibook30
Jul 14, 12:25 AM
I'm not so sure that 802.11n will necessarily be out as soon as we think. .
I agree - sadly. I believe the 802.11n will be slower to market than I would like - but am somewhat excited that Bluray is on it's way. I don't look forward to the format wars, but think bluray is a step towards a much bigger trend in high capacity portable media technology.
As long as tech companies find a way to incorporate these technologies in the market place,,. in other words I think the biggest obstacle to the advances in portable storage media will be tech companies apprehension to adopt technology that makes current offerings or recent offerings obsolete... complicated market but it could be the biggest obstacle to advancement.
I agree - sadly. I believe the 802.11n will be slower to market than I would like - but am somewhat excited that Bluray is on it's way. I don't look forward to the format wars, but think bluray is a step towards a much bigger trend in high capacity portable media technology.
As long as tech companies find a way to incorporate these technologies in the market place,,. in other words I think the biggest obstacle to the advances in portable storage media will be tech companies apprehension to adopt technology that makes current offerings or recent offerings obsolete... complicated market but it could be the biggest obstacle to advancement.
oracle_ab
Apr 27, 10:03 AM
Context doesn't impact a trademark either. The only thing that would permit anyone to use the "App Store" trademark if it was granted would be outside of Apple's selected field of trade.
I could call my restaurant "App Store" because Apple did not trademark App Store as it relates to restoration and food. I could call my new Car model the "GM App Store", as it does not relate to the field in which Apple trademarked it.
I can't however call my store that sells Applications "App Store" or use "App Store" in a portion of its name, or for the slogan "KnightMarket : The best darn App Store!"
That is why descriptive trademarks aren't usually awarded and granted. Because it gives too much power to a single entity in a certain field of trade. We'll see how the USPTO decides this when they hand in their final decision in Apple's request, especially now that Microsoft filed in the opposition phase (which is exactly why the USPTO has an opposition phase to begin with).
This I totally agree with. In regard to written language, context makes a difference. Context may be substituted for your more correct language of "field of trade." One wouldn't be in violation of the trademark if presenting it in general terms (outside of the field or in reference to something w/in the field, much like Windows OS vs. GUI windows), but would be if they wanted to use the term w/in their own title w/in the same field.
I think we're saying the same things, but perhaps my original post wasn't clear and relied to heavily on implied understanding....
I could call my restaurant "App Store" because Apple did not trademark App Store as it relates to restoration and food. I could call my new Car model the "GM App Store", as it does not relate to the field in which Apple trademarked it.
I can't however call my store that sells Applications "App Store" or use "App Store" in a portion of its name, or for the slogan "KnightMarket : The best darn App Store!"
That is why descriptive trademarks aren't usually awarded and granted. Because it gives too much power to a single entity in a certain field of trade. We'll see how the USPTO decides this when they hand in their final decision in Apple's request, especially now that Microsoft filed in the opposition phase (which is exactly why the USPTO has an opposition phase to begin with).
This I totally agree with. In regard to written language, context makes a difference. Context may be substituted for your more correct language of "field of trade." One wouldn't be in violation of the trademark if presenting it in general terms (outside of the field or in reference to something w/in the field, much like Windows OS vs. GUI windows), but would be if they wanted to use the term w/in their own title w/in the same field.
I think we're saying the same things, but perhaps my original post wasn't clear and relied to heavily on implied understanding....
xlii
May 5, 04:10 PM
My neighbor has a 68 Camaro that's in great shape. Hard to believe but this was his first car and he bought it new in... 1968. He's had it ever since.
zorinlynx
Mar 24, 02:29 PM
Hmm, maybe we are thinking of two different things. How is this going to maintain a protected path? How would Apple keep us from grabbing the stream as it is being sent to the GPU (to be shown on the screen)? That is the part I am thinking of, that is what HDCP/DPCP is supposed to prevent. If we are sending data down the PCIe side then how is it being protected from snooping?
I've always found this obsession the industry has with "protected path" incredibly hilarious, because NO ONE in the piracy scene actually rips media from the video driver stream in any way, shape or form.
Ripping is typically done directly from the media; the actual h.264 or MPEG video is decrypted from the disc and saved without even "playing" it the traditional way. It's always been that way since the days of DVDs; no serious pirate back then ripped from component or S-video jacks either.
Why the media industry is so incredibly obsessed with protecting a path nobody actually rips from is beyond my understanding. It's like stationing an armed guard at your back door when all the robberies have happened through the front. In fact, I've never seen consumer equipment that can "record" a DVI stream.
I've always found this obsession the industry has with "protected path" incredibly hilarious, because NO ONE in the piracy scene actually rips media from the video driver stream in any way, shape or form.
Ripping is typically done directly from the media; the actual h.264 or MPEG video is decrypted from the disc and saved without even "playing" it the traditional way. It's always been that way since the days of DVDs; no serious pirate back then ripped from component or S-video jacks either.
Why the media industry is so incredibly obsessed with protecting a path nobody actually rips from is beyond my understanding. It's like stationing an armed guard at your back door when all the robberies have happened through the front. In fact, I've never seen consumer equipment that can "record" a DVI stream.
SchneiderMan
Nov 24, 04:02 AM
I rented The Expendables. It's a pretty hard core, kick ass movie!
daneoni
Nov 25, 12:03 AM
Couldn't care less about the movie to be honest, but to avoid being nagged as anti-social(i am)...
St0rMl0rD
Nov 28, 03:52 PM
Just ordered some Affliction and BCK stuff from U.S.!
Affliction Spear T-Shirt - 26 EUR
http://www.buckle.com/media/images/products/dt/10400A655_BLK_dt_v1_m56577569831575443.jpg
Affliction Scripture T-Shirt - 54 EUR
http://www.buckle.com/media/images/products/dt/10400A1781_BLK_dt_v1_m56577569831985518.jpg
Got this Affliction shirt for free as their bonus:
http://www.buckle.com/media/images/products/dt/10400A4097_VWH_dt_v1_m56577569832272552.jpg
And two BCK bracelets:
http://www.buckle.com/media/images/products/dt/3503058149_BLK_dt_v1_m56577569832141249.jpg
http://www.buckle.com/media/images/products/dt/3503057186_BLK_dt_v1_m56577569832038049.jpg
Affliction Spear T-Shirt - 26 EUR
http://www.buckle.com/media/images/products/dt/10400A655_BLK_dt_v1_m56577569831575443.jpg
Affliction Scripture T-Shirt - 54 EUR
http://www.buckle.com/media/images/products/dt/10400A1781_BLK_dt_v1_m56577569831985518.jpg
Got this Affliction shirt for free as their bonus:
http://www.buckle.com/media/images/products/dt/10400A4097_VWH_dt_v1_m56577569832272552.jpg
And two BCK bracelets:
http://www.buckle.com/media/images/products/dt/3503058149_BLK_dt_v1_m56577569832141249.jpg
http://www.buckle.com/media/images/products/dt/3503057186_BLK_dt_v1_m56577569832038049.jpg
JRM PowerPod
Aug 7, 05:08 AM
I dont follow cricket but I'll kick your ass at football! :D
Last time we played we beat you 3-0 in England im pretty sure.
We should have won the bloody world cup.
We dominated against Italy until Grosso dived and got the most dodgy penalty in history, then we would have smashed ukraine in the quarters, then we would have been in the semi's against Germany, then anythign could have happened. Lets just say FIFA didnt want us to win, because its the one sport we 'aren't meant to dominate'. So the ref played it that way.
People should have learned not to count out an Aussie. Our spirit means we have the best in every field from sport to soldiers.
We would kick ur ass
Last time we played we beat you 3-0 in England im pretty sure.
We should have won the bloody world cup.
We dominated against Italy until Grosso dived and got the most dodgy penalty in history, then we would have smashed ukraine in the quarters, then we would have been in the semi's against Germany, then anythign could have happened. Lets just say FIFA didnt want us to win, because its the one sport we 'aren't meant to dominate'. So the ref played it that way.
People should have learned not to count out an Aussie. Our spirit means we have the best in every field from sport to soldiers.
We would kick ur ass
Slix
Mar 26, 02:49 PM
This looks pretty amazing.
Lord Blackadder
Mar 2, 04:21 PM
Nope, the new Jetta is built in Mexico. Off the top of my head, I'd say that the only German-built Volkswagens you can buy in the USA are the GTI and Tiguan. The Phaeton and R32 are (or were) also German-made. The Touareg is built in Slovakia, the Routan is built by Chrysler, and the Jetta, non-GTI Golf (except the R32) and New Beetles are all made in Mexico. Not sure about the Eos.
My father bought a 1988 Jetta brand new and it was a lemon. It had every issue under the sun, not the least of which is that it rusted terribly in five years (big holes in the floor and wheelwells!). I agree that the Mexican-built Volksawgens have struggled with build quality at times over the years, but that sweet Audi 1.8 turbo was a great motor.
As for the Cruze, I'm not sure how GM would manage a US-market diesel version. My best guess is that the diesel model would be built alongside the other US-market Cruzes at the Lordstown, OH assembly plant using complete VM Motori engines shipped from Italy.
My father bought a 1988 Jetta brand new and it was a lemon. It had every issue under the sun, not the least of which is that it rusted terribly in five years (big holes in the floor and wheelwells!). I agree that the Mexican-built Volksawgens have struggled with build quality at times over the years, but that sweet Audi 1.8 turbo was a great motor.
As for the Cruze, I'm not sure how GM would manage a US-market diesel version. My best guess is that the diesel model would be built alongside the other US-market Cruzes at the Lordstown, OH assembly plant using complete VM Motori engines shipped from Italy.
trellus
Sep 14, 11:25 AM
Ditto for me. I can't believe I waffled between 3GS, HTC Incredible, and iPhone 4. With 3GS 30% of my calls were dropped, with iPhone 4, 0%. Had it since July 5.
This just goes to show you how subjective an experience this is.
My experience with dropped calls has been the same on the 3GS and the iPhone 4 -- about 1 out of 20 calls, or 5%, are dropped, and about 40% of all calls lasting longer than 15 minutes are dropped, but this has not changed from 3GS to 4, either. In short, my reception hasn't gotten worse with the iPhone 4, but it hasn't improved, either, but in neither case am I blaming it on the iPhone, but AT&T here in Dallas. When I was on Sprint (Palm Pre and Palm Treo before that), I rarely, rarely ever had dropped calls... so I blame it on the network. =]
This just goes to show you how subjective an experience this is.
My experience with dropped calls has been the same on the 3GS and the iPhone 4 -- about 1 out of 20 calls, or 5%, are dropped, and about 40% of all calls lasting longer than 15 minutes are dropped, but this has not changed from 3GS to 4, either. In short, my reception hasn't gotten worse with the iPhone 4, but it hasn't improved, either, but in neither case am I blaming it on the iPhone, but AT&T here in Dallas. When I was on Sprint (Palm Pre and Palm Treo before that), I rarely, rarely ever had dropped calls... so I blame it on the network. =]
notabadname
Apr 21, 11:54 AM
Yeah, because Google doesn't track any data on people :rolleyes:
bmustaf
Sep 14, 09:29 AM
I love my iPhone 4, I tend to really love the way Apple does business, but I am not naive, either. I am glad CR is sticking to their principles & original statement and in doing so, holding Apple's feet to the fire however they can.
Let's be very clear - Apple can and will do whatever is most expedient for it. Not necessarily a bad thing because in a perfect market economy consumer preference will find what is good for the consumer to be good for Apple - but I think it's pretty clear that "academic" view of it doesn't always translate into reality.
So, just like the people who threw fits when Apple dropped the price of the iPhone original based on volume sustained by high-price-paying early adopters and got Steve to at least offer some small concession of $100 gift cards to his own store, people/organizations need to keep Apple accountable.
If everyone/every organization falls in line to what Apple tells us we must think/accept, the tail is wagging the dog and the theory of the free market falls apart - let alone the practice.
Written on my MBP, syncing my iPhone 4, my iPad, my iPhone 3GS, and my Magic Mouse right before I got in to my car with a neat little Apple sticker on the back. Just like I love my government, I also fear it. I love my Apple, Inc, but I also know they'll screw me as soon as it becomes convenient for them.
Let's be very clear - Apple can and will do whatever is most expedient for it. Not necessarily a bad thing because in a perfect market economy consumer preference will find what is good for the consumer to be good for Apple - but I think it's pretty clear that "academic" view of it doesn't always translate into reality.
So, just like the people who threw fits when Apple dropped the price of the iPhone original based on volume sustained by high-price-paying early adopters and got Steve to at least offer some small concession of $100 gift cards to his own store, people/organizations need to keep Apple accountable.
If everyone/every organization falls in line to what Apple tells us we must think/accept, the tail is wagging the dog and the theory of the free market falls apart - let alone the practice.
Written on my MBP, syncing my iPhone 4, my iPad, my iPhone 3GS, and my Magic Mouse right before I got in to my car with a neat little Apple sticker on the back. Just like I love my government, I also fear it. I love my Apple, Inc, but I also know they'll screw me as soon as it becomes convenient for them.
Kyffin
Apr 10, 09:52 AM
Yes, although not legally for the next few months:o. Can drive a tractor too!
likemyorbs
Mar 22, 12:48 PM
Agreed!
goddamn i can't make a joke on these forums. i was kidding dude. it's not a choice, if it were a choice it would have been a fad that went away years ago. Some people are naturally attracted to the same sex, and not just people, homosexuality has been demonstrated in animals as well. Some brains are just wired differently, and to deny them rights for it is just not fair.
goddamn i can't make a joke on these forums. i was kidding dude. it's not a choice, if it were a choice it would have been a fad that went away years ago. Some people are naturally attracted to the same sex, and not just people, homosexuality has been demonstrated in animals as well. Some brains are just wired differently, and to deny them rights for it is just not fair.
Michael383
Apr 16, 10:28 PM
I learned how to drive with a stick shift car. Although I had access to an automatic transmission vehicle, I found a stick shift more fun to drive.
My current car has an automatic transmission, but a manual would be my first choice for a sports car.
My current car has an automatic transmission, but a manual would be my first choice for a sports car.
