@asamake @feelpp/core implement structured mesh
fix zeroRowsgit diff matrixpetsc.cpp! (called by integratoron)
fix macos compilation (link edition)
@asamake gmsh.structured (=1) now allows to scale properly with the size of the domain in x
and y direction, but also to keep the size element size for weak scalability
(=2) but be careful the size of the global domain must be 1 (for the moment)