For info, I put a little study I did about the byte code compiler and other speedup approaches (but not multicore) on the Rwiki at http://rwiki.sciviews.org/doku.php?id=tips:rqcasestudy which looks at a specific problem, so may not be relevant to everyone. However, one of my reasons for doing it was to document the "how to" a little. JN
2. Have you tried the "compiler" package? If I understand
correctly, R is a two-stage interpreter, first translating what we know
as R into byte code, which is then interpreted by a byte code
interpreter. If my memory is correct, this approach can cut the compute
time by a factor of 100.