YH wrote:
quoted text
> interesting, that 512nodes/4096 box physics memory is not continuous?

If each node board is stuffed with the same amount of RAM,
and that amount of RAM is a power of two size, then you
are correct that it would be continuous.

But if the nodes are stuffed with unequal amounts of RAM,
or if its not a power of two, then, because we are doing
what Andi figures (breaking the addr into bit fields, for
efficient implementation) then we can end up with many holes.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@sgi.com> 1.940.382.4214
--
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/