Difference between revisions of "The QMC Chem code"
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| Line 19: | Line 19: | ||
=== Practical aspects === | === Practical aspects === | ||
* Very low memory requirements | * Very low memory requirements | ||
| − | * Runs on a large number of processors | + | * Runs on a large number of processors : tested on 512 processors at the [http://calmip.cict.fr CALMIP cluster], and on 1000 processors on the EGEE grid. |
* Checkpointing | * Checkpointing | ||
| + | * 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.sourceforge.net/ IRPF90 tool]. | ||
Revision as of 21:48, 8 February 2010
One of our main activities is the development of the massively parallel QMC code QMC=Chem.
Contents
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 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
