jpff, how are your preparations for a multi-core csound related to the work 
that Steven Yi and I are doing?

Regards,
Mike

----- Original Message ----- 
From: "Richard Bowers" 
To: 
Sent: Friday, June 13, 2008 1:58 AM
Subject: [Csnd] Re: How expensive is that opcode?


>A really useful feature would be a cost calculator - something which you 
>could apply to a mute run of a csd file, maybe, or even as a running report 
>(k-rate opcode?). This would be especially useful if the problem re 
>granular synthesis is overcome because of the ability to change parameters 
>in realtime.
>
> jpff wrote:
>> I had a very interesting brain-storming session yesterday in
>> preparation for creating a multi-core Csound.  Part of the conclusion
>> was that we needed a table of approximate costs of each opcode.
>> So.... I have started to create such a table.  In doing this I realise
>> that users in general may not be aware of the relative costs.  I have
>> not done it yet but I suspect that
>>     a1 = k1*a2 + k2*a3
>> might be slower than
>>     a1   mac    k1,a2,k2,a3
>> but we do need to know.
>>
>> I will measure more opcodes as I have time; currently rather a pain.
>> I can accept requests if provided with .csd files
>> ==John ffitch
>>
>> These are for ksmps = 10
>>
>> +aa     => 76
>> +kk     => 9
>> arand   => 185
>> =       => 7
>> balance => 298
>> buzz =>423
>> cpspch =>106
>> delay =>154
>> /kk =>9
>> expseg =>87
>> foscil =>362
>> frac1 =>65
>> gbuzz =>765
>> int1 =>67
>> itblchk =>84
>> kexpon =>9
>> kline =>9
>> klinen =>20
>> klnseg =>30
>> koscil =>41
>> kphsor =>26
>> krandh =>34
>> krandi =>36
>> ktable =>45
>> ktabli =>61
>> kxpseg =>26
>> *ak =>75
>> *ka =>75
>> *kk =>9
>> octpch =>74
>> oscka =>216
>> osckk =>167
>> osckki =>259
>> outs =>117
>> phsor =>191
>> rassign =>2
>> reson =>229
>> reverb =>928
>> -kk =>9
>> tablefn =>274
>> upsamp =>52
>>
>>
>> Send bugs reports to this list.
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe 
>> csound"
>> ------------------------------------------------------------------------
>>
>>
>> No virus found in this incoming message.
>> Checked by AVG. Version: 8.0.100 / Virus Database: 270.3.0/1500 - Release 
>> Date: 6/12/2008 4:58 PM
>>
>
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe 
> csound" 


-------------------------------------------------------------------------
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services for
just about anything Open Source.
http://sourceforge.net/services/buy/index.php
_______________________________________________
Csound-devel mailing list
Csound-devel@lists.sourceforge.net