The Massively Parallel Quantum Chemistry Program MPQC 2.0 DESCRIPTION =========== MPQC computes the properties of molecules, ab initio, on a wide variety of computer architectures. MPQC can compute closed shell and general restricted open shell Hartree-Fock energies and gradients, density functional theory energies and gradients, second order open shell perturbation theory (OPT2[2]) and Z-averaged perturbation theory (ZAPT2) energies, and second order closed shell Moeller-Plesset perturbation theory energies and gradients. It also includes an internal coordinate geometry optimizer. MPQC runs on Unix compatible workstations (Intel/Linux, SGI R8000, IBM RS/6000), symmetric multi-processors (SGI Power Challenge), and massively parallel computers (IBM SP, Intel Paragon). LICENSE ======= This software is distributed under the GNU General Public License. The the US Government retains a limited license in some of the code, as prescribed in AL 91-7. See the file LICENSE for details and additional information. DISCLAIMER ========== There is no warranty for the program, to the extent permitted by applicable law. Except when otherwise stated in writing the copyright holders and/or other parties provide the program "as is" without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The entire risk as to the quality and performance of the program is with you. Should the program prove defective, you assume the cost of all necessary servicing, repair or correction. COMPILING AND RUNNING ===================== There are instructions for compiling and running MPQC at http://aros.ca.sandia.gov/~cljanss/mpqc