max physical memory per process?

[Steven G. Kargl]

Assuming that a user has the proper resource limits
set and assuming that the system has sufficient physical
memory, what is the maximum amount of physical memory
that a process can allocate?  In particular, if I have
a Tyan K8W (dual opteron platform) with 16 GB of memory,
can my numerical simulation allocate up 15+ GB?

-- 
Steve
http://troutmask.apl.washington.edu/~kargl/