[Beowulf] Increasing "size" of program

[jorgegg at sas.upenn.edu]

Hi all,
I'm running a fortran90 program in a 7 nodes cluster. Each node has 512M of RAM.
My problem is that the "size" or memory usage of my program keeps increasing as
time goes by, so eventually it stops when one of the nodes reaches the RAM
limit. I already tried to use the ALLOCATE/DEALLOCATE expressions. They worked
as the initial size of the program decreased dramatically but anyway, it keeps
increasing! I'm sure there's no other array to be deallocated. Moreover, my
program is an optimization routine so it iterates over the same computations
which means that there's no reason for the program to increase the memory usage
since it's solving the same thing!
Does anybody have an idea of how could I make the program to keep the memory
usage more stable?
Thanks a lot,
Jorge Gallardo-Garcia