bulk::multi_partitioning::local_size
using multi_partitioning<D, G>::local_size;
virtual int local_size(int g, int u); // overload
Returns the local data space shape for a given processor (overload).
Parameters
g: the axis for which to compute the indexu: thegth component of the local multi rank
Return value
int: Thegth component of the shape of the local data space.