MATLAB Programming

11 Improving Performance and Memory Usage
http://support.microsoft.com/support/kb/articles/Q291/9/88.ASP
Similarly, on machines running Windows Vista, you can achieve the same
effect by using the command:
BCDEdit /set increaseuserva 3072
More documentation on this option can be found at the following URL:
http://msdn2.microsoft.com/en-us/library/aa906211.aspx
Compressing Data in Memory
Since MATLAB uses a heap method of memory management, extended
MATLAB sessions may cause memory to become fragmented. When memory
is fragmented, there may be plenty of free space, but not enough contiguous
memory to store a new large variable. If you get the Out of Memory message
from MATLAB, the pack functionmaybeabletocompresssomeofyourdata
in memory, thus freeing up larger contiguous blocks.
Note Because of time considerations, you should not use pack within loops or
M-file functions.
Increasing System Swap Space
How you set the swap space for your computer depends on what operating
system you are running on.
UNIX
Information about swap space can be procured by typing pstat -s at the
UNIX command prompt. For detailed information on changing swap space,
ask your system administrator.
Linux
Swap space can be changed by using the mkswap and swapon commands. For
more information on the above commands, type man followed by the command
name at the Linux prompt.
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