Before revision:  Thanks to the high parallelism of these basic linear algebra operations, we obtain excellent performance on multi-core processors and GPUs, with large speed-ups over standard methods (up to \sim50x with respect to LAPACK and ARPACK , with respect to Davidson).
After revision:  Thanks to the high parallelism of these basic linear algebra operations, we obtain excellent performance on multi-core processors and GPUs, with large speed-ups over standard methods (up to \sim50x with respect to LAPACK and ARPACK  with respect to Davidson).