## Sunday, May 25, 2008

### Molpro quantum chemistry package

Molpro is a complete system of ab initio programs for molecular electronic structure calculations, designed and maintained by H.-J. Werner and P. J. Knowles, and containing contributions from a number of other authors. As distinct from other commonly used quantum chemistry packages, the emphasis is on highly accurate computations, with extensive treatment of the electron correlation problem through the multiconfiguration-reference CI, coupled cluster and associated methods. Using recently developed integral-direct local electron correlation methods, which significantly reduce the increase of the computational cost with molecular size, accurate ab initio calculations can be performed for much larger molecules than with most other programs.

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## Molpro benchmarks

The timings for the standard Molpro benchmark suite:

## Version 2006.3

### Molpro: Secondary platforms

MOLPRO is not tested regularly on the following machines, but has worked on them in the past..
 Machine name Hardware and operating system Integer bytes Other information Known problems apple-intel i386-apple-darwin 4 Intel Fortran 9.0