Parallelization of quantum mechanical integral calculations
β Scribed by S. Kindermann; E. Michel; P. Otto
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 747 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0192-8651
No coin nor oath required. For personal study only.
β¦ Synopsis
In ab initio Hartree-Fock crystal orbital calculations of chemical and physical properties of polymers, the huge number of two-electron integrals restricts the size of the elementary cell. Therefore, the question arises how the storage and computation resources of modern parallel supercomputers can be exploited. In this work, we report the parallelization of the one-and twoelectron integral programs, respectively, for the parallel computer SUPRENUM. A short description of the hardware and software environment of this supercomputer is given. The results are discussed with respect to speed-up and efficiency.
π SIMILAR VOLUMES
A computer algorithm is developed for integrating density functional quantum mechanics into a molecular mechanics program. The Ε½ computationally infeasible aspects of the standard LCAO-MO approach the iterative calculation of eigenvectors and the requirement of orthogonal . expansions for the orbita
Multiple biological processes are regulated by kinases and phosphatases. This study aims to provide nonenzymatic models for phosphorylation and dephosphorylation of serine, threonine, and tyrosine phosphate using ab initio guantum mechanical calculations. We reduce the problem to methyl phosphate hy
It is shown how matrix elements of the form \(\left\langle x\left|e^{-i f t}\right| y\right\rangle\), which arise in closed-form expressions for the generating functional, can be evaluated perturbatively using a path integral encountered in the quantum mechanics of a single particle. This allows one
## Abstract The quasiβdegenerate multireference secondβorder perturbation theory (MRMP2) routines in the GAMESS suite of program codes have been parallelized using a distributed data interface (DDI). Two typical kinds of molecules were chosen for examination of parallelization speedup using one to