int size = Utilities.getInt(1, 8);
coll = new CollectiveCommunications(size);
int n = Utilities.getInt(size, 250);
A_unsymm = new DenseMatrix(n, n);
A_symm = new UpperSymmDenseMatrix(n);
Utilities.populate(A_unsymm);
Utilities.upperPopulate(A_unsymm);
double shift = 10;