Difference between revisions of "QMCChem"

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* Fail safe : if the code is aborted, the data is kept. This feature is very useful in grid environments.
 
* Fail safe : if the code is aborted, the data is kept. This feature is very useful in grid environments.
 
* Easy development with the [http://irpf90.ups-tlse.fr/ IRPF90 tool].
 
* Easy development with the [http://irpf90.ups-tlse.fr/ IRPF90 tool].
 +
* [{{SERVER}}/qmcchem_doc Documentation]
  
 
== Features under development ==
 
== Features under development ==

Revision as of 12:56, 19 July 2010

One of our main activities is the development of the massively parallel QMC code QMC=Chem.

Current Features

Methods

  • VMC
  • DMC
  • Jastrow factor optimization
  • CI coefficients optimization

Wave functions

  • Single determinant
  • Multi-determinant
  • Multi-Jastrow
  • Nuclear cusp correction

Properties

Practical aspects

  • Very low memory requirements
  • Runs on a large number of processors : tested on 512 processors at the CALMIP cluster, and on 1000 processors on the EGEE European grid.
  • Checkpointing
  • Fail safe : if the code is aborted, the data is kept. This feature is very useful in grid environments.
  • Easy development with the IRPF90 tool.
  • Documentation

Features under development

Properties

  • Molecular Forces
  • Moments (dipole, quadrupole,...)
  • Electron density
  • ZV-ZB EPLF estimator

Practical aspects

  • Graphical interface for input and output


Input file creation

The QMC=Chem input file can be created using the web interface. Upload a Q5Cost file or an output file from GAMESS, Gaussian or Molpro, and you will download the QMC=Chem input directory.

Papers related to the QMC=Chem code