212   PetscMPIInt     n15, n16, n17, n18, n19, n20, n21, n22, n23, n24, n25, n26;  in DMSetUp_DA_3D()  local
572   n24 = rank + m * n + m - 1;  in DMSetUp_DA_3D()
587     n24 = rank + 2 * m - 1 + (m * n);  in DMSetUp_DA_3D()
621     n24 = rank - m * (n - 1) - 1 + (m * n);  in DMSetUp_DA_3D()
645     n24 = (m * n) - (size - rank) + m - 1;  in DMSetUp_DA_3D()
659     n24 = m * n - (size - rank) + m - 1 + m;  in DMSetUp_DA_3D()
671     n24 = rank - m * (n - 1) + m - 1 + m * n;  in DMSetUp_DA_3D()
717     n24 = rank - (size - m) - 1;  in DMSetUp_DA_3D()
726   if ((xs == 0) && (ye == N) && (ze == P)) n24 = m - 1;  in DMSetUp_DA_3D()
736     if (xs == 0) n0 = n3 = n6 = n9 = n12 = n15 = n18 = n21 = n24 = -2;  in DMSetUp_DA_3D()
743     if (ye == N) n6 = n7 = n8 = n15 = n16 = n17 = n24 = n25 = n26 = -2;  in DMSetUp_DA_3D()
749     if (ze == P) n18 = n19 = n20 = n21 = n22 = n23 = n24 = n25 = n26 = -2;  in DMSetUp_DA_3D()
778   dd->neighbors[24] = n24;  in DMSetUp_DA_3D()
802     sn24 = n24;  in DMSetUp_DA_3D()
805 …n3 = n5 = n6 = n7 = n8 = n9 = n11 = n15 = n17 = n18 = n19 = n20 = n21 = n23 = n24 = n25 = n26 = -1;  in DMSetUp_DA_3D()
1041       if (n24 >= 0) { /* left above */  in DMSetUp_DA_3D()
1042         x_t = lx[n24 % m];  in DMSetUp_DA_3D()
1043         y_t = ly[(n24 % (m * n)) / m];  in DMSetUp_DA_3D()
1045         s_t = bases[n24] + i * x_t - s_x + k * x_t * y_t;  in DMSetUp_DA_3D()
1046         if (twod && (s_t >= M * N * P)) s_t = bases[n24] + i * x_t - s_x; /* 2d case */  in DMSetUp_DA_3D()
1091     n24 = sn24;  in DMSetUp_DA_3D()
1375         if (n24 >= 0) { /* left above */  in DMSetUp_DA_3D()
1376           x_t = lx[n24 % m];  in DMSetUp_DA_3D()
1377           y_t = ly[(n24 % (m * n)) / m];  in DMSetUp_DA_3D()
1379           s_t = bases[n24] + i * x_t - s_x + k * x_t * y_t;  in DMSetUp_DA_3D()