def test_zero_rhs(self, backend, b, zero_dat, nodes):
        op2.par_loop(zero_dat, nodes,
                     b(op2.WRITE))
        assert all(b.data == np.zeros_like(b.data))
Check to see if a portion of the table is empty.
dataset/ETHPy150Open OP2/PyOP2/test/unit/test_matrices.py/TestMatrices.test_zero_rhs--crossover with--dataset/ETHPy150Open bahamas10/Viridian/AmpacheTools/dbfunctions.py/song_has_info