Hi,

>
> The C translation is attached for your amusement.

and here is a mlton version. The test runs on a Pentium-M.

compile flags:

gcc -march=pentium-m -O2 -o nbody-gcc nbody.c
mlton -cc-opt -ffast-math -output nbody-mlton nbody.sml
ocamlopt -ccopt -ffast-math -inline 3 -unsafe    -o nbody-ocaml nbody.ml 

nbody         gcc         ocaml         mlton
1000	      0.000       0.000         0.000
10000         0.014       0.019         0.024
100000        0.070       0.301         0.239
200000        0.231       0.621         0.478
500000        0.552       1.556         1.189
1000000       1.123       3.112         2.377
2000000       2.246       6.229         4.704
3000000       3.367       9.286         8.865
4000000       4.457       12.501        9.687

Christoph Bauer