It's not a question whether it's a lot of work, or a little work. The question is simply important, just as the question of sound quality is important. 

I think tests would be very interesting. I would be particularly interested if you had live pieces that stress Csound, and that could be "tuned" to be more or less demanding.

Best,
Mike

-----Original Message-----
From: Iain Duncan 
Sent: Nov 7, 2005 3:37 PM
To: csound-devel@lists.sourceforge.net
Subject: Re: [Cs-dev] CVS Reorganization Request

If we're talking about a *lot* of extra work, I could run heavy load 
tests of both if you'd like.

Iain

Michael Gogins wrote:
> How much speed are you talking about here? 
> 
> Have you tried using 64 bits and found it too slow? Or are you guessing?
> 
> Best,
> Mike
> 
> -----Original Message-----
> From: Iain Duncan 
> Sent: Nov 7, 2005 1:55 PM
> To: csound-devel@lists.sourceforge.net
> Subject: Re: [Cs-dev] CVS Reorganization Request
> 
> 
> 
>>Well, as you know, I think having 32 bits and 64 bits is a bad idea. It should just be 64 bits. So I am utterly indifferent to this question. I never build or use 32 bits.
>>
>>It continues to escape me why everyone else doesn't do the same. If it sometimes sounds better and is inarguably more precise and only runs a little slower, and oh yes it's much simpler to only build for 64 bits, what's the big deal? Are we musicians here or software engineering speed demons? 
>>
>>At the end of the day, Csound is a musical instrument and its only purpose is to make music.
> 
> 
> Ah, but some of us are live performers, and the speed *does* matter, 
> very very much. I am and will be for many years yet picking which 
> corners to cut in order to get close to what I want running in real 
> time. So I think it is good to still be able to run 32 bits.
> 
> Iain
> 
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> It's not a question whether it's a lot of work, or a little work. The question is simply important, just as the question of sound quality is important. 
> 
> I think tests would be very interesting. I would be particularly interested if you had live pieces that stress Csound, and that could be "tuned" to be more or less demanding.

I do have those and will be happy to test. How would you suggest I 
conduct the tests? What kind of tuning do you have in mind?

As to amount faster, I should mention that to me, the difference need be 
only in the range of 10% cpu use to be meaningful. Currently, I *need* 
to run at ksmp=64 to do my pieces and I do not have as many instruments 
or reverbs on there as I would like. So 10% difference is another 
reverb, or another channel on the board, and I have a fast machine. So 
when I thing that less fortunate souls than me may be doing the same 
thing on 1 gig machines instead of 3gigs, then that is even more 
meaningful. It could be the difference between 2 synths channels ( not 
enough to do a show ) and 3 ( enough to do Hardfloor if you're cunning! )

I will definitely stick with 32 bit for gigs if it is only 10% faster. 
Maybe not so for 5% faster.

Iain


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Oops, which options do I need to change in SConstruct, just the "build 
for 64 bit machine"?

Thanks
iain

Michael Gogins wrote:
> It's not a question whether it's a lot of work, or a little work. The question is simply important, just as the question of sound quality is important. 
> 
> I think tests would be very interesting. I would be particularly interested if you had live pieces that stress Csound, and that could be "tuned" to be more or less demanding.
> 
> Best,
> Mike
> 
> -----Original Message-----
> From: Iain Duncan 
> Sent: Nov 7, 2005 3:37 PM
> To: csound-devel@lists.sourceforge.net
> Subject: Re: [Cs-dev] CVS Reorganization Request
> 
> If we're talking about a *lot* of extra work, I could run heavy load 
> tests of both if you'd like.
> 
> Iain
> 
> Michael Gogins wrote:
> 
>>How much speed are you talking about here? 
>>
>>Have you tried using 64 bits and found it too slow? Or are you guessing?
>>
>>Best,
>>Mike
>>
>>-----Original Message-----
>>From: Iain Duncan 
>>Sent: Nov 7, 2005 1:55 PM
>>To: csound-devel@lists.sourceforge.net
>>Subject: Re: [Cs-dev] CVS Reorganization Request
>>
>>
>>
>>
>>>Well, as you know, I think having 32 bits and 64 bits is a bad idea. It should just be 64 bits. So I am utterly indifferent to this question. I never build or use 32 bits.
>>>
>>>It continues to escape me why everyone else doesn't do the same. If it sometimes sounds better and is inarguably more precise and only runs a little slower, and oh yes it's much simpler to only build for 64 bits, what's the big deal? Are we musicians here or software engineering speed demons? 
>>>
>>>At the end of the day, Csound is a musical instrument and its only purpose is to make music.
>>
>>
>>Ah, but some of us are live performers, and the speed *does* matter, 
>>very very much. I am and will be for many years yet picking which 
>>corners to cut in order to get close to what I want running in real 
>>time. So I think it is good to still be able to run 32 bits.
>>
>>Iain
>>
>>
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>>
>>
>>
>>
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> 
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Iain Duncan wrote:

> Oops, which options do I need to change in SConstruct, just the "build 
> for 64 bit machine"?

No, 64 bit floats are enabled by useDouble=1.


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