allocated.  Most reasonable MD runs are compute limited, not memory

limited, so this shouldn't be a bottleneck on most platforms.  Almost

all large memory allocations in the code are done via C-style malloc's

prwhich will generate an error message if you run out of memory.

which will generate an error message if you run out of memory.

Smaller chunks of memory are allocated via C++ "new" statements.  If

you are unlucky you could run out of memory just when one of these

small requests is made, in which case the code will crash or hang (in