LI+HCL RIOSA CROSS-SECTION CALCULATIONS ON PARALLEL COMPUTERS

Reactive Infinite Order Sudden Approximation calculations have been performed using a computational procedure restructed to run on parallel computers. Computationally intensive sections of the code are analyzed and speedups obtained from a parallel restructuring discussed. The significant speedup obtained on a shared-memory parallel machine has allowed us to perform extensive calculations of the energy dependence of the integral and differential reactive cross sections of the Li + HCl system. A comparison with results of a quasiclassical and an experimental study is also performed.