GitLab

Enable exchange of references to elements in ExchangeMarked and ExchangeData/ReduceData; add cmake script that automatically downloads ParMetis; add routines to check synchronization of owners and processors list on elements

Functions to check equality of ghost and shared elements on different processors + computation of centroids in eclipse reader into specifig tag

Change parallel behaviour for exchange of elements of sets, sets only
contain shared elements. Function SynchronizeSetElements orders full
synchronization of set elements.

Fix interval in true residual calculation.

different approach to give unique names to sets

Add another round of communication to inform owner processors about
reference elements that were sent to other processors

PackTagData/UnpackTagData of DATA_REFERENCE data type in ExchangeData is done with the same buffer via PackElementsData/UnpackElementsData

pool_array no longer depend on allocation/deallocation order; unit test on pool_array; some fancy functions to retrive derivatives for variable/hessian_variable