Tc. Scott et al., NUMERICAL COMPUTATION OF MOLECULAR INTEGRALS VIA OPTIMIZED (VECTORIZED) FORTRAN CODE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 389(1-2), 1997, pp. 117-120
The calculation of molecular properties based on quantum mechanics is
an area of fundamental research whose horizons have always been determ
ined by the power of state-of-the-art computers. A computational bottl
eneck is the numerical calculation of the required molecular integrals
to sufficient precision. Herein, we present a method for the rapid nu
merical evaluation of molecular integrals using optimized FORTRAN code
generated by Maple. The method is based on the exploitation of common
intermediates and the optimization can be adjusted to both serial and
vectorized computations.