|MATLAB Function Reference|
Consolidate workspace memory
frees up needed space by reorganizing information so it only uses the minimum memory required. You must run
pack from a directory for which you have write permission. Running
pack clears all variables not in the base workspace, so persistent variables, for example, will be cleared.
accepts an optional
filename for the temporary file used to hold the variables. Otherwise, it uses the file named
pack.tmp. You must run
pack from a directory for which you have write permission.
is the function form of
pack function does not affect the amount of memory allocated to the MATLAB process. You must quit MATLAB to free up this 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
memory message from MATLAB, the
pack function may find you some free memory without forcing you to delete variables.
pack function frees space by:
If you use
pack and there is still not enough free memory to proceed, you must clear some variables. If you run out of memory often, you can allocate larger matrices earlier in the MATLAB session and use these system-specific tips:
To maintain persistent variables when you run pack, use
mlock in the function.
Change the current directory to one that is writable, run
pack, and return to the previous directory.