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large score files

Date1997-02-18 20:20
FromJon Christopher Nelson
Subjectlarge score files
Matt wrote:
>I would assume most people's score generators create note events
>linearly in time anyway

This is not necessarily the case.  My soundfile granulation score  
generator includes a lot of random variables that can, and usually  
do, result in score files that are NOT linear.

John wrote:
> I persist in my view that the only limit to score size is machine
> memory.  This is part of the extensive changes I made some time ago.

If the only limit to score file size is machine memory, I am  
somewhat perplexed since I allocated 40 MB of RAM to Csound to perf  
a simple (and very small) orchestra with a VERY large score.  It  
worked fine for a score file of 12.5 MB but crashed after about 20  
minutes of allocating more space for memory on a 25 MB score file.   
The score file contains 51 function tables (50-513 point tables and  
another table whose size is dependant upon the soundfile being  
granulated--in this case, a 1.5 second file).  By the way, I ran  
this perf on a Power Mac 8500  (120MHz) with 64 MB of RAM using the  
Mills version of Csound.

Again, I have not looked extensively at the code to find the  
problem.  Any ideas you may have would be appreciated.

regards,
Jon Nelson

Jon Christopher Nelson, Director
CEMI (Center for Experimental Music and Intermedia)
University of North Texas College of Music
P.O. Box 13887
Denton, TX 76203
USA

ph. (817) 565-4926
fax (817) 565-2002
jnelson@sndart.cemi.unt.edu
http://www.music.unt.edu/comp/jnelson.htm

Date1997-02-18 20:59
FromMike Berry
SubjectRe: large score files
	You may be making a somewhat common mistake with csound.ppc.  You
have to increase the partition on perf.ppc, not on csound.ppc, in order to
increase the memory partition.

Mike Berry
mikeb@mills.edu
http://www.mills.edu/PEOPLE/gr.pages/mikeb.public.html/mikeb.homepage.html