Baseline
Nov 15, 08:41 AM
seriously though, how hard is it to get a program to multi-thread? (if thats the right term; being a complete programming novice, i've no idea)
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.
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.
iJohnHenry
Feb 28, 09:12 AM
.... that the US car makers still sells trucks, pickups etc. without diesel options is simply a complete lack of any common sense.
Profit and common sense cannot co-exist, apparently. :rolleyes:
Profit and common sense cannot co-exist, apparently. :rolleyes:
Evangelion
Aug 31, 07:19 AM
Grah. I hope this rumour proves incorrect. A processor that can't do x86-64 is planned obsolescence. I don't want to buy a computer that will be unable to run software in a few years!
What makes you think that it "can't run software"? Current 32bit CPU's will be usable for years to come.
What makes you think that it "can't run software"? Current 32bit CPU's will be usable for years to come.
twoodcc
Nov 28, 12:29 AM
Congrats! may the next mil go quickly by.
thanks! i hope so.
and congrats to you, whiterabbit, for hitting 3 million!
thanks! i hope so.
and congrats to you, whiterabbit, for hitting 3 million!
TangoCharlie
Jul 14, 02:52 AM
imagine the data you could put onto those disks though!
... and what you'd loose when the disk goes bad :mad:
... and what you'd loose when the disk goes bad :mad:
avkills
Dec 29, 08:53 AM
It might also have the capacity to use a TV as a monitor through wireless airport. If there is a video processor, word processing text will also be crisp and clean. I could get a mac mini and iTV and use my new 42�� plasma as the monitor. :p
You're not going to get broadcast quality computer -> video scaling at $299, which means your text is not going to be crisp.
It works for movies because there is much color and luma variation.
Now if you hook the Mini directly to the plasma and can drive the plasma at the native resolution, then it will probably look fine.
-mark
You're not going to get broadcast quality computer -> video scaling at $299, which means your text is not going to be crisp.
It works for movies because there is much color and luma variation.
Now if you hook the Mini directly to the plasma and can drive the plasma at the native resolution, then it will probably look fine.
-mark
MrFirework
Jan 2, 10:51 AM
not only that, but none of the rumors really pointed to MWSF for a compact Macbook.
arn
True enough... but have any of the new product rumors really pointed to MWSF for anything?
arn
True enough... but have any of the new product rumors really pointed to MWSF for anything?
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
aristotle
Apr 2, 11:41 PM
Great concept, I love it. But it was poorly executed. Who picked the music for this ad? It's terrible. And the voiceover is on the verge of creepy.
I miss old Apple ads. Their advertising is going downhill while their products keep getting better.
Dude, the people who think everything is "creepy" are usually creepy themselves. I'm not trying to antagonize you but it is just an observation of mine that I've seen so often. It is all about self esteem and redirection on someone or something else. People who are happy with themselves don't go out of their way to put people or things down. I'm just a little sick and tired of the fad to overuse words like "creepy" so that they begin to lose all meaning. It does not make so seem "cool" in my eyes.
I've seen teens who were awkward and odd looking who used "creepy" a lot whereas those with self confidence just lived their lives instead of trying to label strangers walking by minding their own business.
I'll "believe" when they fix the currently unresolved and widespread quality control issues...light bleed on virtually every unit and blemishes, dents and scratches on units straight out of the box.
Fix those issues, Apple, and then I will "believe" enough to get an iPad 2.
That's funny. There was no bleed, blemishes, dents or scratches on my iPad 2 when I took it out of the box.
Are you sure that are not talking to people who are getting "returns" as "new"?
Back on topic, I loved the part with the plucked strings. With the angle they used and the responsiveness it seemed as if it was 3 dimensional.
I miss old Apple ads. Their advertising is going downhill while their products keep getting better.
Dude, the people who think everything is "creepy" are usually creepy themselves. I'm not trying to antagonize you but it is just an observation of mine that I've seen so often. It is all about self esteem and redirection on someone or something else. People who are happy with themselves don't go out of their way to put people or things down. I'm just a little sick and tired of the fad to overuse words like "creepy" so that they begin to lose all meaning. It does not make so seem "cool" in my eyes.
I've seen teens who were awkward and odd looking who used "creepy" a lot whereas those with self confidence just lived their lives instead of trying to label strangers walking by minding their own business.
I'll "believe" when they fix the currently unresolved and widespread quality control issues...light bleed on virtually every unit and blemishes, dents and scratches on units straight out of the box.
Fix those issues, Apple, and then I will "believe" enough to get an iPad 2.
That's funny. There was no bleed, blemishes, dents or scratches on my iPad 2 when I took it out of the box.
Are you sure that are not talking to people who are getting "returns" as "new"?
Back on topic, I loved the part with the plucked strings. With the angle they used and the responsiveness it seemed as if it was 3 dimensional.
coder12
Mar 25, 10:32 PM
Wow! This looks insane!! I didn't realise that the iPad was so powerful!
Little do you know... that the iPad can output RAW LIGHTNING!!! *Cracks of thunder* Mwahahahahahaha!!!!!
Little do you know... that the iPad can output RAW LIGHTNING!!! *Cracks of thunder* Mwahahahahahaha!!!!!
macenforcer
Nov 15, 04:22 PM
They're going to have to go multi-thread capable, demands on consumer software is only going to increase as we take what is cutting edge today and integrate it into everyday life.
Yes, and apple can start with QUICKTIME... for heaven's sake.
Yes, and apple can start with QUICKTIME... for heaven's sake.
heehee
Apr 10, 12:13 AM
My fiancee and I both have stick shift cars. :cool:
jeznav
Mar 31, 08:49 AM
Apple has never mentioned the new "Scene Kit" before:
Introduced in Mac OS X v10.7, the Scene Kit framework enables your application to import, manipulate, and render three-dimensional assets. It supports 3D assets imported via COLLADA, an XML-based schema that facilitates the transport of 3D assets between applications. Architecturally, a scene is composed of the 3D entities of cameras, lights, and meshes. Scene Kit lets you access attributes of scene objects—for example, geometry, bounding volume, and material—and is consistent with the APIs of other graphical frameworks, such as Core Animation and Image Kit.
Scene Kit is intended for developers who quickly need to integrate 3D rendering into their applications. It doesn’t require that you have advanced graphical programming skills.
Where are you seeing this? I can't find this on the reference documents.
Introduced in Mac OS X v10.7, the Scene Kit framework enables your application to import, manipulate, and render three-dimensional assets. It supports 3D assets imported via COLLADA, an XML-based schema that facilitates the transport of 3D assets between applications. Architecturally, a scene is composed of the 3D entities of cameras, lights, and meshes. Scene Kit lets you access attributes of scene objects—for example, geometry, bounding volume, and material—and is consistent with the APIs of other graphical frameworks, such as Core Animation and Image Kit.
Scene Kit is intended for developers who quickly need to integrate 3D rendering into their applications. It doesn’t require that you have advanced graphical programming skills.
Where are you seeing this? I can't find this on the reference documents.
reyesmac
Aug 6, 09:29 PM
I will be surprised if Vista comes out with most features in leopard, even if they are hacked wanna be copies. They have done it before and with the preview Apple will just give them one more chance to do it. What I don't think they will be able to copy is the features in the iApps that will come out or core video effects. Well, not without raising the requirements to run vista yet again.
szark
Aug 6, 11:15 PM
you know everyone's going mac nuts when it says "update: photo of cloth covered banners".... :)
Or when there are multiple threads analyzing a photograph of a banner with dozens of icons on it, and nobody notices the photo also shows (the same) two covered banners. :)
Or when there are multiple threads analyzing a photograph of a banner with dozens of icons on it, and nobody notices the photo also shows (the same) two covered banners. :)
suneohair
Nov 15, 09:58 AM
For some time, Handbrake didn't use more than two cores - owners of Quad G5s reported CPU usage of exactly 50 percent, then someone changed it and Quad G5s reported 100 percent CPU usage.
What we don't know: Was the code changed to use up to four processors, or as many processors as are available? Developers are usually very unwilling to ship code that they haven't been able to try out, so expect a version using eight cores about two days after the developers have access to an eight core machine.
In the case of Handbrake, encoding to MPEG4 seems already limited by the speed of the DVD drive; you can't encode faster than you can read from the DVD. H.264 is still limited by processor speed. Using eight cores is not too difficult; for example, if you encode 60 minutes of video, just give 7 1/2 minutes to each core.
Applications should be, and most likely are written to take advantage of available resources. A developer should be writing applications to take advantage of 8-cores already, they don't need an 8-core machine to do so.
What we don't know: Was the code changed to use up to four processors, or as many processors as are available? Developers are usually very unwilling to ship code that they haven't been able to try out, so expect a version using eight cores about two days after the developers have access to an eight core machine.
In the case of Handbrake, encoding to MPEG4 seems already limited by the speed of the DVD drive; you can't encode faster than you can read from the DVD. H.264 is still limited by processor speed. Using eight cores is not too difficult; for example, if you encode 60 minutes of video, just give 7 1/2 minutes to each core.
Applications should be, and most likely are written to take advantage of available resources. A developer should be writing applications to take advantage of 8-cores already, they don't need an 8-core machine to do so.
lordonuthin
Mar 23, 05:04 PM
Actually I'm using a Mac Pro with a 8-core 2,26GHz setup.
I'm right at 28 minutes with a MacPro 2.66 octo but I'm not currently running bigadv units because I keep having to shut down to swap hard drives, bigadv units don't restart once you have stopped them. One of these days I'll get some time to consolidate all of my files... then I won't have to shut down so frequently:p
I'm right at 28 minutes with a MacPro 2.66 octo but I'm not currently running bigadv units because I keep having to shut down to swap hard drives, bigadv units don't restart once you have stopped them. One of these days I'll get some time to consolidate all of my files... then I won't have to shut down so frequently:p
shervieux
Jun 23, 06:53 PM
Remember this design? Maybe they THOUGHT it was a touch enabled iMac, but just the iPad in a dock that looked like an iMac:
http://gizmodo.com/assets/resources/2008/01/imac-dock3.jpg
Something like this could be feasible now that the iPad is out. Throw in the rumored MagicPad and the Magic Mouse, along with a slim keyboard, and voila, a touch enabled iMac-like computer.
Just a thought.
:D Yes, give me an imac doc where I can auto sync my ipad / mac os x and run both traditional os x software and ipad apps from the mac. That would be cool and definately looking forward to. I would love to not have to worry about syn'cing ever again. maybe this is also why we have not heard anything about iwork or iLife 10 yet. I mean it is getting pretty late in the year and they are not out with it yet.
http://gizmodo.com/assets/resources/2008/01/imac-dock3.jpg
Something like this could be feasible now that the iPad is out. Throw in the rumored MagicPad and the Magic Mouse, along with a slim keyboard, and voila, a touch enabled iMac-like computer.
Just a thought.
:D Yes, give me an imac doc where I can auto sync my ipad / mac os x and run both traditional os x software and ipad apps from the mac. That would be cool and definately looking forward to. I would love to not have to worry about syn'cing ever again. maybe this is also why we have not heard anything about iwork or iLife 10 yet. I mean it is getting pretty late in the year and they are not out with it yet.
newagemac
May 2, 05:03 PM
They could have simplified the whole process in the following way:
Alpinism
Nov 16, 12:06 PM
An unlikely scenario. Don't expect any price drops on mac pros for a long time after clovertown chips are in them.
Thats the beauty of going Intel, you dont drop the price ? DELL, HP and the other competitors WILL.
Thats the beauty of going Intel, you dont drop the price ? DELL, HP and the other competitors WILL.
toddybody
Mar 24, 09:54 PM
Yes, it's an issue. Mac Pros don't carry heavy duty PSUs.
Ehhh...you're right that it's no 1200watt corsair. But it supports dual CPUs, crap ton of ram, and 5770x2 or 5870...surely it could support a 6970(from a tdp perspective)
Ehhh...you're right that it's no 1200watt corsair. But it supports dual CPUs, crap ton of ram, and 5770x2 or 5870...surely it could support a 6970(from a tdp perspective)
Eraserhead
Mar 22, 01:42 PM
Absolutely. Although I've met many dozens of gay men in my life who, no matter what you plied them with, couldn't and wouldn't have sex with a woman. Can't say the same about a sizeable proportion of allegedly straight men.
Can't disagree with that analysis.
There are a hell of a lot of "straight" guys who are in the closet at least as far as being bisexual.
Can't disagree with that analysis.
There are a hell of a lot of "straight" guys who are in the closet at least as far as being bisexual.
T'hain Esh Kelch
Sep 1, 12:28 PM
Apple legal taking action? Macosxrumors.com down now..
Coffee87
Jan 22, 04:01 PM
2006 Lexus GS300
http://img26.imageshack.us/img26/2900/35140383.jpg
2010 Lexus RX450h and my Polaris 850XP
http://img842.imageshack.us/img842/8712/dscn0800w.jpg
http://img26.imageshack.us/img26/2900/35140383.jpg
2010 Lexus RX450h and my Polaris 850XP
http://img842.imageshack.us/img842/8712/dscn0800w.jpg
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