A question about heap size

[mark]

Tommy chen wrote:
> 
> In our program, a huge heap (above 10GB) is needed. On our X86-64 platform,
> hardware provides this capability. But the program was shutdown, while it
> malloc about 3GB from the heap. Who tell us what is the upper limitation for
> gcc and red hat linux about its heap size? and how to reach this limitation?

19G of heap?! My reaction is that, unless you're modeling the Earth's weather, 
there's something *seriously* wrong with your programmers, and that program 
needs major redesign.

	mark "or rewrite it in C"