aces3 - 3.0.8-9+b1 main

ACESIII is an electronic structure calculation program with a focus on
correlated methods. It is the parallel successor to ACESII, employing the
Super Instruction Assembly Language (SIAL) as parallelization framework.
Features include:
.
Energies, analytic gradients and analytic hessians for the following methods:
* Restricted/unrestricted spin or restricted open-shell Hartree-Fock (HF)
* Second-order Moeller-Plesset pertubation theory (MP2)
.
Energies and analytic gradients for the following methods:
* Coupled cluster singles and doubles (CCSD)
.
Additionally, it can compute energies for the following methods:
* Coupled cluster singles and doubles with pertubative triples (CCSD(T))
* Quadratic configuration-interaction singles and doubles (QCISD)
.
Excited states can be calculated by the following methods:
* Qadratic configuration interaction singles and doubles
* Coupled cluster equation-of-motion (EOM-CC)
.
It also includes an internal coordinate geometry optimizer. If analytic
gradients are not available, numerical gradients via finite differences are
used.