ALTIVEC...PLEASE!
-
bhxtm
ALTIVEC...PLEASE!
I would kill to see Live be able to take advantage of AltiVec(G4) on the Mac so we can get the same kind of performance as the windows users...
-
Guest
We all need ALTIVEC!!!
Let's make a petition for ALTIVEC...
Almost all the pro live users use a titanium... and it´s slow
Almost all the pro live users use a titanium... and it´s slow
-
Krzysztof
- Posts: 49
- Joined: Fri Jan 04, 2002 3:08 am
- Location: http://soundcloud.com/szychowski
- Contact:
Altivec / DualProc / OSX... please.
Add me to the list wanting better Mac OSX support with
all the standard pro Mac features such as
Altivec / DualProc / OSX multithreading, etc...
In all fairness to Ableton I relalize OSX audio/midi support
was very weak until the current 10.2 Jaguar release...
so hopefully these issues will be resolved SOON!??
Not to be to demanding... but at least make a 'written' commitment
to add full Altivec / dual Proc / OSX support in the near future...
and I'll make the leap to buy into LIVEs future.
(maybe you already have made a statement somewhere on the site?)
Thanks,
Rand
all the standard pro Mac features such as
Altivec / DualProc / OSX multithreading, etc...
In all fairness to Ableton I relalize OSX audio/midi support
was very weak until the current 10.2 Jaguar release...
so hopefully these issues will be resolved SOON!??
Not to be to demanding... but at least make a 'written' commitment
to add full Altivec / dual Proc / OSX support in the near future...
and I'll make the leap to buy into LIVEs future.
(maybe you already have made a statement somewhere on the site?)
Thanks,
Rand
-
SongCarver
- Posts: 432
- Joined: Mon Dec 17, 2001 3:29 pm
When some plugins for Logic were altivec-enable the number of simaltaneous plug-ins doubled.
Could we possibly see an improvement of this sort.
Are there any programmers out there who know if Altivec is good for FFT work??
2nd, At least can the Reverb be altivec'd ... it uses a lot of my processing power but i LOVE it.
Dual support would be very useful too.
cheer,
-K
Could we possibly see an improvement of this sort.
Are there any programmers out there who know if Altivec is good for FFT work??
2nd, At least can the Reverb be altivec'd ... it uses a lot of my processing power but i LOVE it.
Dual support would be very useful too.
cheer,
-K
Please Ableton, please... 
Yes, this getting to the point where it is almost necessary as the app and plug-ins get more hungry. Ours Macs are slow. The only thing we have to help is AltiVec. Support for the AltiVec would ensure my future as a Live user. I love the program but it's not extremely usable in it's current state. AltiVec would make a huge difference.
-
Alex Reynolds
- Posts: 989
- Joined: Sat Jul 13, 2002 5:48 am
- Location: Philadelphia, PA, USA
- Contact:
Developer information on Altivec
I do bioinformatics work for a living, and Apple is pushing their new operating system as a viable platform for scientific computing, so much so that they wrote an Altivec-enhanced version of BLAST, a common genome search tool, as a proof of concept.
Altivec (or whatever marketing term it will have in the coming years, if IBM's Power4 replaces the G4) is something that Apple appears to be committed to in the long term.
If applicable code is optimized properly, speed gains provide a clear and competitive advantage over other platforms.
Applicable code includes repetitive (parallelizable) matrix operations, such as trig functions and Fast Fourier Transforms that are at the core of DSP.
For an overview of what Altivec is and what it does:
-- http://www.altivec.org/
-- http://developer.apple.com/hardware/ve/summary.html
Some links for developers looking for Altivec-enhanced sample code related to audio work:
-- http://developer.apple.com/hardware/ve/ ... SP.sit.hqx
-- http://www.motorola.com/SPS/PowerPC/AltiVec/ (under Code Samples)
A good mailing list is Apple's Scitech list:
-- http://www.lists.apple.com/mailman/listinfo/scitech
Scientists often run benchmarks comparing the speed of enhanced code against non-enhanced code on various platforms. The difference is [i]dramatic[/i].
Altivec could likely do wonders for audio plug-ins, especially the Reverb plug-in.
As to the rest of the Live interface pulling 4-6% of CPU when nothing is happening, I'm not sure what's going on there.
-Alex[/i]
Altivec (or whatever marketing term it will have in the coming years, if IBM's Power4 replaces the G4) is something that Apple appears to be committed to in the long term.
If applicable code is optimized properly, speed gains provide a clear and competitive advantage over other platforms.
Applicable code includes repetitive (parallelizable) matrix operations, such as trig functions and Fast Fourier Transforms that are at the core of DSP.
For an overview of what Altivec is and what it does:
-- http://www.altivec.org/
-- http://developer.apple.com/hardware/ve/summary.html
Some links for developers looking for Altivec-enhanced sample code related to audio work:
-- http://developer.apple.com/hardware/ve/ ... SP.sit.hqx
-- http://www.motorola.com/SPS/PowerPC/AltiVec/ (under Code Samples)
A good mailing list is Apple's Scitech list:
-- http://www.lists.apple.com/mailman/listinfo/scitech
Scientists often run benchmarks comparing the speed of enhanced code against non-enhanced code on various platforms. The difference is [i]dramatic[/i].
Altivec could likely do wonders for audio plug-ins, especially the Reverb plug-in.
As to the rest of the Live interface pulling 4-6% of CPU when nothing is happening, I'm not sure what's going on there.
-Alex[/i]
-
Molta
-
SongCarver
- Posts: 432
- Joined: Mon Dec 17, 2001 3:29 pm
Thanks Alex for the useful links..
there is a little section there which brought my attention..
"AltiVec typically works best for that 10% of the application that consumes 80% of your CPU time -- these functions typically have heavy computational and data loads, two areas where AltiVec excels. "
It reminds me of the Paretto Principle, named after a 17th Century(?) Scientist who said:
80% of your results come from 20% of your effort.
Basically in regards to LIVE this means that mac users could get an 80% improvement if Ableton found the 20% part of the applicatiion that uses the most CPU, and ALTIVEC'd it to double it's performance. So we don't NEED the whole app to be re-coded, just the parts which would benefit the most.
I always figure that FFT type stuff would benefit the most from ALTIVEC, and I suppose the new 'higherquality' time-stretching options coming soon will use this mathmatics.
Cheers
-K
there is a little section there which brought my attention..
"AltiVec typically works best for that 10% of the application that consumes 80% of your CPU time -- these functions typically have heavy computational and data loads, two areas where AltiVec excels. "
It reminds me of the Paretto Principle, named after a 17th Century(?) Scientist who said:
80% of your results come from 20% of your effort.
Basically in regards to LIVE this means that mac users could get an 80% improvement if Ableton found the 20% part of the applicatiion that uses the most CPU, and ALTIVEC'd it to double it's performance. So we don't NEED the whole app to be re-coded, just the parts which would benefit the most.
I always figure that FFT type stuff would benefit the most from ALTIVEC, and I suppose the new 'higherquality' time-stretching options coming soon will use this mathmatics.
Cheers
-K
-
sunless
yo yo yo
i can't believe anyone would say that ableton is unusable in it's present form....i run a 450 TiBook, and myself and two friends played a show, only using the Ableton Live Demo,each of us doing solo sets...extremely thick compositions, lots of plug ins, tons of loops playing, lots of samples being triggered....no crashes, solid cpu performance and all under 70% cpu...
i'm not sure if i understand what the problem is....yes altivec support will be great when they get around to it, but for a fairly new product, and what they've already added to the program in the updates, i just can't imagine anyone would straight up complain about anything........
as soon as i get my paycheck, i will be ordering.
i'm not sure if i understand what the problem is....yes altivec support will be great when they get around to it, but for a fairly new product, and what they've already added to the program in the updates, i just can't imagine anyone would straight up complain about anything........
as soon as i get my paycheck, i will be ordering.
Re: yo yo yo
where did you get a 450 mhz TiBook? i'm not trying to be a jerk. did you overclock a 400 or something? i'm using a 550 and the performance i get from Live leaves alot to be desired.sunless wrote:i can't believe anyone would say that ableton is unusable in it's present form....i run a 450 TiBook, and myself and two friends played a show, only using the Ableton Live Demo,each of us doing solo sets...extremely thick compositions, lots of plug ins, tons of loops playing, lots of samples being triggered....no crashes, solid cpu performance and all under 70% cpu...
i'm not sure if i understand what the problem is....yes altivec support will be great when they get around to it, but for a fairly new product, and what they've already added to the program in the updates, i just can't imagine anyone would straight up complain about anything........
as soon as i get my paycheck, i will be ordering.