Adding VariableUtils method: SetHistoricalVariableToPreviousInfo

[AlejandroCornejo]

📝 Description Adding a new VariableUtils method:

    template< class TType >
    void SetHistoricalVariableToPreviousInfo(
        const Variable< TType >& rVariable,
        NodesContainerType& rNodes,
        const int PreviousStep = 1)
    {
        KRATOS_TRY
        block_for_each(rNodes, [&](Node<3> &rNode) {
            rNode.FastGetSolutionStepValue(rVariable) = rNode.FastGetSolutionStepValue(rVariable, PreviousStep);
        });
        KRATOS_CATCH("")
    }

This is closely related to https://github.com/KratosMultiphysics/Kratos/issues/4594

[AlejandroCornejo]

If I'm not wrong, the same can be achieved with the CopyModelPartNodalVar. Besides this synchronization is missing.

hmm checking this method, I think that the previous time step issue is missing... Maybe adding DestinationBuffStep should be enough (we do not want equal BuffStep in this case)

[rubenzorrilla]

If I'm not wrong, the same can be achieved with the CopyModelPartNodalVar. Besides this synchronization is missing.

hmm checking this method, I think that the previous time step issue is missing... Maybe adding DestinationBuffStep should be enough (we do not want equal BuffStep in this case)

You're right. I'd do this for the sake of flexibility.

[miguelmaso]

@AlejandroCornejo have you taken a look at these lines?

https://github.com/KratosMultiphysics/Kratos/blob/66535071233657434d36941d6492a48613573dc9/kratos/python/add_model_part_to_python.cpp#L1012

https://github.com/KratosMultiphysics/Kratos/blob/66535071233657434d36941d6492a48613573dc9/kratos/sources/model_part.cpp#L179

If needed, this can be exported to python:

        .def("OverwriteSolutionStepData", [](){ModelPart::OverwriteSolutionStepData(1, 0);})

And this is also interesting: https://github.com/KratosMultiphysics/Kratos/blob/66535071233657434d36941d6492a48613573dc9/kratos/sources/model_part.cpp#L190

[AlejandroCornejo]

@AlejandroCornejo have you taken a look at these lines?

https://github.com/KratosMultiphysics/Kratos/blob/66535071233657434d36941d6492a48613573dc9/kratos/python/add_model_part_to_python.cpp#L1012

https://github.com/KratosMultiphysics/Kratos/blob/66535071233657434d36941d6492a48613573dc9/kratos/sources/model_part.cpp#L179

If needed, this can be exported to python:

        .def("OverwriteSolutionStepData", [](){ModelPart::OverwriteSolutionStepData(1, 0);})

And this is also interesting:

https://github.com/KratosMultiphysics/Kratos/blob/66535071233657434d36941d6492a48613573dc9/kratos/sources/model_part.cpp#L190

yeah! Some time ago I needed somethign like that, honestly I do not remember why hah

[ddiezrod]

what is the status of this? @AlejandroCornejo @rubenzorrilla

[AlejandroCornejo]

the status is "forgotten" haha