𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A full CI algorithm on the CRAY T3D. Application to the NH3 molecule

✍ Scribed by Stefano Evangelisti; Gian Luigi Bendazzoli; Roberto Ansaloni; Elda Rossi


Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
619 KB
Volume
233
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis


A full configuration interaction algorithm on the CRAY T3D massively parallel computer has been implemented. The algorithm shows good scaling behaviour as a function of the number of processors. As an application, we studied a problem that has attracted the attention of several authors in the past, i.e. the determination of the ground state energy of ammonia with a valence double-zeta plus polarization (vdzp) basis set.


πŸ“œ SIMILAR VOLUMES


A one billion determinant full CI benchm
✍ Stefano Evangelisti; Gian Luigi Bendazzoli; Roberto Ansaloni; Francesca DurΓ¬; El πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 716 KB

The implementation of an out-of-core version of a full CI algorithm on the Cray T3D is described. The introduction of heavy I/O activity, necessary to handle larger problems, required particular attention in order to maintain good performance. As an application, the FCI energy of the Be 2 molecule w

Application of the preconditioned GMRES
✍ Y. Yang; Z. H. Fan; D. Z. Ding; S. B. Liu πŸ“‚ Article πŸ“… 2008 πŸ› John Wiley and Sons 🌐 English βš– 257 KB πŸ‘ 1 views

## Abstract The increase of the time step size significantly deteriorates the property of the coefficient matrix generated from the Crank‐Nicolson finite‐difference time‐domain (CN‐FDTD) method. As a result, the convergence of classical iterative methods, such as generalized minimal residual method