... I'm proud to announce that gencli is the first high level backend that can compile and run rpystone and richards :-). Some early benchmarks (I post them here so I'll know where to find them when I need it later :-)): pystone ------- gencli: 177429.668653 rpystones/second genc: 4926108.374384 rpystones/second genc w/o backendopt: 1592356.687898 rpystoned/second richards -------- gencli: 28.652590 ms/iteration genc: 7.431851 ms/iteration genc w/o backendopt: 16.203486 ms/iteration ciao Anto