211   PetscMPIInt     n0, n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12, n14;  in DMSetUp_DA_3D()  local
547   n0 = rank - m * n - m - 1;  in DMSetUp_DA_3D()
579     n0  = rank - 1 - (m * n);  in DMSetUp_DA_3D()
603     n0  = rank + m * (n - 1) - 1 - (m * n);  in DMSetUp_DA_3D()
627     n0 = size - (m * n) + rank - m - 1;  in DMSetUp_DA_3D()
651     n0 = size - m * n + rank + m - 1 - m;  in DMSetUp_DA_3D()
663     n0  = rank + m * n - 1 - m * n;  in DMSetUp_DA_3D()
699     n0 = size - m + rank - 1;  in DMSetUp_DA_3D()
723   if ((xs == 0) && (ys == 0) && (zs == 0)) n0 = size - 1;  in DMSetUp_DA_3D()
736     if (xs == 0) n0 = n3 = n6 = n9 = n12 = n15 = n18 = n21 = n24 = -2;  in DMSetUp_DA_3D()
742     if (ys == 0) n0 = n1 = n2 = n9 = n10 = n11 = n18 = n19 = n20 = -2;  in DMSetUp_DA_3D()
748     if (zs == 0) n0 = n1 = n2 = n3 = n4 = n5 = n6 = n7 = n8 = -2;  in DMSetUp_DA_3D()
754   dd->neighbors[0]  = n0;  in DMSetUp_DA_3D()
785     sn0  = n0;  in DMSetUp_DA_3D()
805 …n0 = n1 = n2 = n3 = n5 = n6 = n7 = n8 = n9 = n11 = n15 = n17 = n18 = n19 = n20 = n21 = n23 = n24 =…  in DMSetUp_DA_3D()
814       if (n0 >= 0) { /* left below */  in DMSetUp_DA_3D()
815         x_t = lx[n0 % m];  in DMSetUp_DA_3D()
816         y_t = ly[(n0 % (m * n)) / m];  in DMSetUp_DA_3D()
817         z_t = lz[n0 / (m * n)];  in DMSetUp_DA_3D()
818         s_t = bases[n0] + x_t * y_t * z_t - (s_y - i) * x_t - s_x - (s_z - k - 1) * x_t * y_t;  in DMSetUp_DA_3D()
819 …    if (twod && (s_t < 0)) s_t = bases[n0] + x_t * y_t * z_t - (s_y - i) * x_t - s_x; /* 2D case */  in DMSetUp_DA_3D()
1074     n0  = sn0;  in DMSetUp_DA_3D()
1105         if (n0 >= 0) { /* left below */  in DMSetUp_DA_3D()
1106           x_t = lx[n0 % m];  in DMSetUp_DA_3D()
1107           y_t = ly[(n0 % (m * n)) / m];  in DMSetUp_DA_3D()
1108           z_t = lz[n0 / (m * n)];  in DMSetUp_DA_3D()
1109           s_t = bases[n0] + x_t * y_t * z_t - (s_y - i) * x_t - s_x - (s_z - k - 1) * x_t * y_t;  in DMSetUp_DA_3D()