mpg=1 mrule=140 reg=7989 score=10625 rank=0 perc=100 mp_demand=100
mpg=2 mrule=140 reg=7989 score=10625 rank=0 perc=100 mp_demand=40
mpg=3 mrule=150 reg=7989 score=0 rank=0 perc=100 mp_demand=20
mpg=4 mrule=150 reg=7989 score=10625 rank=0 perc=100 mp_demand=40
mpg=3 mrule=140 reg=7989 score=0 rank=0 perc=100 mp_demand=20

##</code><code>##

 
bos-mp96h:~ jvx$ ./partition_file.pl asgn.txt 
Can't write to '00000021.log': Too many open files

bos-mp96h:~ jvx$ ls -ltr | grep 'log' | wc -l 
     252