These results were produced on a new LoBoS-2, which is a Beowulf class machine at NIH CHARMM: c27a1 (October 1998) COMM. LIB.: MPICH - Version 1.1.1 (July 1998) FORTRAN: f2c_19971204-3.deb C: gcc_2.7.2.3-4.8.deb LINUX: Linux-2.1.126 DISTRIBUTION: Debian-2.0 (Debian) TOPOLOGY: R-SWITCH (as described in LoBoS pages). PROCESSOR: PentiumII 450MHz NETWORK: Gigabit DATE: November 8, 1998