Right, I know that lapack-linux website too. Note gcc-2.7.0 and g77-0.5.17 were used, more recent ones are available. g77 got better with 0.5.18, but also slower (according to some very casual measurements I did on one piece of code). Also, Jacob Schiotz doesn't say anything about compiler versions. It would be good if someone had some time to redo these and some others benchmarks. -- Dirk Eddelb"uttel http://qed.econ.queensu.ca/~edd