Difference between revisions of "The QMC Chem code"

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* Checkpointing
 
* Checkpointing
 
* 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.sourceforge.net/ IRPF90 tool].
+
* Easy development with the [http://irpf90.ups-tlse.fr/ IRPF90 tool].
  
 
== Features under development ==
 
== Features under development ==

Revision as of 10:27, 10 June 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

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.

Features under development

Methods

  • Wave function optimization

Properties

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

Practical aspects

  • Graphical interface for input and output