The BeOS version of HINT differs slightly from the architecture used in the other supported SMP systems, since there is no automatic compiler-supported multiprocessor scheduling. Instead, the driver spawns a set of computation threads and instructs them through the lowest-level kernel messaging service. Because even this message service carries a significant overhead, the number of messages have been minimized by moving the "resolution-amplification" iteration out from Run() to the compute thread. The binaries, hint-*-shmem, are compiled under BeOS 1.1d7 with Metrowerks CodeWarrior using full optimization (-O7). Osma Ahvenlampi,