I read the problem. You can only address 4GB of physical memory, but you can use more in swap if you run Linux with PAE (Page Address Extensions), as available in Red Hat's "Advanced Server" distribution. There may be something similar for other OSes.
in reply to Re: Re: Re: STOP Trading Memory for Speed
in thread STOP Trading Memory for Speed
Note that I have not used this and can't speak about it from experience. My situation was with a process going over 2GB on a FreeBSD machine with 2GB of physical RAM.