On Sat, Jan 23, 2010 at 7:20 AM,   wrote:
> Rather than reengineering the sorting, wouldn't it be a lot easier to
> implement the original poster's suggestion to allow the specification
> of alternate input/output names for the sorted score file?

I didn't realize that a vastly superior sorting algorithm was available.
I vote that this sorting inefficiency be corrected as soon as possible.
In my original post, I only asked for a flag to rename the score, because
I was largely ignorant as to the csound sort method that was being used.

I have a recent processor, and yet it took csound over 80 minutes to
sort a score that had less than a half million lines in it!

For comparison, I tried writing a python program that generates
10 million random numbers, and sorts them.  Never mind the generation time,
the entire program completed in just over 20 seconds!:

import random

a = []
print "Entering Ten Million Loop"
for x in range(10000000L):
	a.append(random.random())

print "Done with array creation.  Starting Sort."

a.sort()

print "Done with sorting"
print len(a)


So gentlemen, please, let's regard this as a very serious issue;
csound ought to be able to handle scores of very large lengths.
I need it to be able to handle such scores.  Concept:  using a score generation
program for grain-type synthesis.

Thanks as always for all that contribute to this awesome piece of software.

Tobiah


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Hey all-
I think I may have posted something about sort a while back.  Either way I
would love to see sorting in Csound improved (maybe sort flags to choose
different algorithms?) or know of a way to get sort to work on large scores. 
I have reverted to rendering large scores in pieces and putting the
resulting audio files back together in a DAW :( because it seemed that
Csound would never finish sorting if I fed it the whole score at once.  Glad
to see I am not alone.  The coolest thing about Csound is being able to
generate huge scores for it IMHO.  
Thanks.
Kurt.