Difference between revisions of "The QMC Chem code"

From Qmcchem
Jump to navigation Jump to search
 
(One intermediate revision by the same user not shown)
Line 7: Line 7:
 
* DMC
 
* DMC
 
* Jastrow factor optimization
 
* Jastrow factor optimization
 +
* CI coefficients optimization
  
 
=== Wave functions ===
 
=== Wave functions ===
Line 25: Line 26:
  
 
== Features under development ==
 
== Features under development ==
 
=== Methods ===
 
* Wave function optimization
 
  
 
=== Properties ===
 
=== Properties ===

Latest revision as of 12:54, 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.

Features under development

Properties

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

Practical aspects

  • Graphical interface for input and output