getTypeOfModification - ModifT

Palabos General
#1

Dear all,

I currently work on some data processing functionals, and would like to ask about clarifications on the method

[code=“cpp”]
virtual void getTypeOfModification(std::vectormodif::ModifT& modified) const


or more precisely, on the meaning of the values of
[code="cpp"]
enum ModifT {
  nothing = 0, staticVariables = 1, dynamicVariables = 2, allVariables = 3,
  dataStructure = 4, undefined = 5
}

As far as I understand, this method is called when updating the single blocks of a multi-block structure. The question that arises is the following: What is the difference between staticVariables, dynamicVariables and allVariables? Which one do I need to set when I explicitly want to modify the populations in a cell, or the density, or an external variable?

Thank you in advance
Philippe

#2

bump

it would really be great if one of the developers could comment on this. The documentation only discusses the old implementation with

[code=“cpp”]
void getModificationPattern(std::vector& isWritten) const

#3

Dear Phillipe,

Let me include a part from the source code:

/// Indicates what kind of cell content was modified and must
///   be updated in a multi-block structure.
enum ModifT {
    nothing          =0,  //< No modification.
    staticVariables  =1,  //< Static cell content (populations+externals).
    dynamicVariables =2,  //< Only content of dynamics objects, but no static content.
    allVariables     =3,  //< Both the static and dynamic cell content.
    dataStructure    =4,  //< Recreate dynamics and copy both static and dynamic content.
    undefined        =5   //< Used for debugging purposes only.
};

So, if you want to modify the populations at a cell you need to use “staticVariables”. If you need to modify the relaxation parameter of a cel, you need to use “dynamicVariables”. If you need to change localy the dynamics, you need to use “dataStructure”, and so on…

Best,
Dimitris

#4

Thanks a lot, Dimitris, this clears things up! Feel a little stupid now, I could have found this out by myself…

#5

Dear Philippe,

This is what the forum is for! To try and clarify some of Palabos dark corners…

Best,
Dimitris