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Added cmd("isExtraCVNeeded") #909

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merged 2 commits into from Mar 3, 2023
Merged

Added cmd("isExtraCVNeeded") #909

merged 2 commits into from Mar 3, 2023

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GiovanniBussi
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Description

This is to complete the implementation of extra CVs (computed in the MD code), see #83 .

What I add here is an extra plumed cmd to allow the MD code to know if an extra CV is needed at the step or not.

This can be used to enable:

  • multiple time stepping
  • monitoring with large STRIDE

possibly useful for expensive CVs.

Target release

I would like my code to appear in release 2.9

This is adding a new cmd "isExtraCVNeeded", similar to "isEnergyNeeded".

This is finally closing #83
@GiovanniBussi GiovanniBussi changed the title Fix 83b Added cmd("isExtraCVNeeded") Feb 28, 2023
@GiovanniBussi GiovanniBussi merged commit 1ff70db into master Mar 3, 2023
@thangckt
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Dear Prof. @GiovanniBussi

Can you give an example of using this feature with an existing parameter computed in LAMMPS?
Thank you so much

@GiovanniBussi
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This feature is implemented in Plumed, but I don't think it is used by the current LAMMPS PLUMED interface.

To give you an example, this feature is used in the GROMACS PLUMED interface to pass lambda (alchemical variable) to a plumed so as to use it as a collective variable

@thangckt
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Dear Prof. @GiovanniBussi

Thank you so much for the information.
I am looking for if there is a plan to update LAMMPS PLUMED interface.

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3 participants