* It copy the first grid into the given grid (No ghost)
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@@ -1373,21 +1411,52 @@ public:
* \warning the Decomposition must be ensured to be the same, otherwise crashes can happen, if you want to copy the grid independently from the decomposition please use the operator equal
*
* \param g Grid to copy
* \param use_memcpy use memcpy function if possible