diff --git a/release.notes.5.0 b/release.notes.5.0 new file mode 100644 index 0000000000..8078f757a8 --- /dev/null +++ b/release.notes.5.0 @@ -0,0 +1,74 @@ +NWChem Version 5.0 Release Notes +(Also available at +http://www.emsl.pnl.gov/docs/nwchem/release-notes/release.notes.5.0.html) + +NOTE: These release notes are not a substitute for reading the User Manual! + +They are meant to give a thumbnail sketch of the new capabilities and bug +fixes that are available in NWChem Version 5.0. When there is a conflict +between the release notes and the User Manual, the User Manual takes +precedence. + +Several new major capabilities are available in NWChem: + o Q-HOP in molecular dynamics allows protons to hop from one residue to another + o Exact exchange is available for plane wave calculations + o Completely and locally renormalized coupled cluster approaches are available in TCE + o NWChem bas been interfaced with VENUS (from Texas Tech University) + o Interface with ScaLAPACK is now available for DFT module + o Link up with vendors' optimized BLAS libraries on 64-bit platforms + +Listed below are the major and many minor changes for each module +with significant changes. These descriptions are somewhat terse and more +information is generally available in the User Manual. + +DFT: + o New XC functionals + o Interface to ScaLAPACK eigensolvers + o Improved performance in hessians + o Bugs fixed for the SCF part of the metaGGAs + +NWPW: + o PSPW: Pipelined FFT added to PSPW + o PSPW: inversion symmetry option added to PSPW + o PSPW: PBE0 exchange-correlation functional and Hartree-Fock (xc=pbe0, hf) + o PSPW: center of rotation constraint added to PSPW Car-Parrinello + o PSPW: prototype pressure calculation added to PSPW Car-Parrinello + o BAND: DPLOT capabilities in the Band structure code + o BAND: Analytic stresses added to BAND + o BAND: Hilbert decomposed FFT added to BAND + o PAW: faster generation of .jpp files for faster restarting + o PAW: GGA exchange-correlation is now computed in the augmented region + o PAW: numerical integration option added to the exchange-correlation augmented region + +QMMM: + o Improved treatment of classical Bq charges + o Effective (ESP) charge or frozen density representation for fixed QM region calculations + o New multi-region optimization algorithm + o Ground and excited state calculations with TCE + +TCE: + o Several variants of active-space CCSDt and EOMCCSDt methods that employ limited set of + triply excited cluster amplitudes defined by active orbitals. + o Ground-state non-iterative CC approaches that account for the effect of triply and/or + quadruply excited connected clusters: the perturbative approaches based on the similarity + transformed Hamiltonian: CCSD(2), CCSD(2)_T, CCSDT(2)_Q, the completely and locally + renormalized methods: CR-CCSD(T), LR-CCSD(T), LR-CCSD(TQ)-1. + o Excited-state non-iterative corrections due to triples to the EOMCCSD excitation energies: + the completely renormalized EOMCCSD(T) method (CR-EOMCCSD(T)). + o Improved DIIS solver. + o New form of offset tables used in addressing files with cluster amplitudes, intermediates, + and one- and two-electron integrals. + o More efficient storage of 2-electron integrals for CC calculations based on RHF or ROHF + references. + o Improved scalability and performance of the CCSD and CCSD(T) codes. + +MD: + o Bug fixes for thermodynamic integration. + o Bug fixes related to I/O. + +Properties: + o Spin-spin coupling can be used for DFT + o Spherical basis set fixes for NMR shielding + +A general FAQ is available at +http://www.emsl.pnl.gov/docs/nwchem/support/faq/NWChem_FAQ.html