diff --git a/src/GRANULAR/fix_pour.cpp b/src/GRANULAR/fix_pour.cpp
index a6284d1d5e..27bf4fc707 100644
--- a/src/GRANULAR/fix_pour.cpp
+++ b/src/GRANULAR/fix_pour.cpp
@@ -37,10 +37,11 @@ using namespace LAMMPS_NS;
 using namespace FixConst;
 using namespace MathConst;
 
-#define EPSILON 0.001
-
 enum{ATOM,MOLECULE};
 enum{ONE,RANGE,POLY};
+enum{LAYOUT_UNIFORM,LAYOUT_NONUNIFORM,LAYOUT_TILED};    // several files
+
+#define EPSILON 0.001
 
 /* ---------------------------------------------------------------------- */
 
@@ -598,13 +599,25 @@ void FixPour::pre_exchange()
       if (newcoord[0] >= sublo[0] && newcoord[0] < subhi[0] &&
           newcoord[1] >= sublo[1] && newcoord[1] < subhi[1] &&
           newcoord[2] >= sublo[2] && newcoord[2] < subhi[2]) flag = 1;
-      else if (dimension == 3 && newcoord[2] >= domain->boxhi[2] &&
-               comm->myloc[2] == comm->procgrid[2]-1 &&
-               newcoord[0] >= sublo[0] && newcoord[0] < subhi[0] &&
-               newcoord[1] >= sublo[1] && newcoord[1] < subhi[1]) flag = 1;
-      else if (dimension == 2 && newcoord[1] >= domain->boxhi[1] &&
-               comm->myloc[1] == comm->procgrid[1]-1 &&
-               newcoord[0] >= sublo[0] && newcoord[0] < subhi[0]) flag = 1;
+      else if (dimension == 3 && newcoord[2] >= domain->boxhi[2]) {
+        if (comm->layout != LAYOUT_TILED) {
+          if (comm->myloc[2] == comm->procgrid[2]-1 &&
+              newcoord[0] >= sublo[0] && newcoord[0] < subhi[0] &&
+              newcoord[1] >= sublo[1] && newcoord[1] < subhi[1]) flag = 1;
+        } else {
+          if (comm->mysplit[2][1] == 1.0 &&
+              newcoord[0] >= sublo[0] && newcoord[0] < subhi[0] &&
+              newcoord[1] >= sublo[1] && newcoord[1] < subhi[1]) flag = 1;
+        }
+      } else if (dimension == 2 && newcoord[1] >= domain->boxhi[1]) {
+        if (comm->layout != LAYOUT_TILED) {
+          if (comm->myloc[1] == comm->procgrid[1]-1 &&
+              newcoord[0] >= sublo[0] && newcoord[0] < subhi[0]) flag = 1;
+        } else {
+          if (comm->mysplit[1][1] == 1.0 &&
+              newcoord[0] >= sublo[0] && newcoord[0] < subhi[0]) flag = 1;
+        }
+      }
 
       if (flag) {
         if (mode == ATOM) atom->avec->create_atom(ntype,coords[m]);
diff --git a/src/KSPACE/msm.cpp b/src/KSPACE/msm.cpp
index 5ce73ee41f..81dbc98b47 100644
--- a/src/KSPACE/msm.cpp
+++ b/src/KSPACE/msm.cpp
@@ -148,6 +148,9 @@ void MSM::init()
   triclinic_check();
   if (domain->dimension == 2)
     error->all(FLERR,"Cannot (yet) use MSM with 2d simulation");
+  if (comm->style != 0) 
+    error->universe_all(FLERR,"MSM can only currently be used with "
+                        "comm_style brick");
 
   if (!atom->q_flag) error->all(FLERR,"Kspace style requires atom attribute q");
 
diff --git a/src/KSPACE/pppm.cpp b/src/KSPACE/pppm.cpp
index 5f3f8ce2db..095d70b7a2 100644
--- a/src/KSPACE/pppm.cpp
+++ b/src/KSPACE/pppm.cpp
@@ -183,6 +183,9 @@ void PPPM::init()
                "slab correction");
   if (domain->dimension == 2) error->all(FLERR,
                                          "Cannot use PPPM with 2d simulation");
+  if (comm->style != 0) 
+    error->universe_all(FLERR,"PPPM can only currently be used with "
+                        "comm_style brick");
 
   if (!atom->q_flag) error->all(FLERR,"Kspace style requires atom attribute q");
 
diff --git a/src/KSPACE/pppm_disp.cpp b/src/KSPACE/pppm_disp.cpp
index 195aa47af3..1dfea3bf77 100755
--- a/src/KSPACE/pppm_disp.cpp
+++ b/src/KSPACE/pppm_disp.cpp
@@ -213,6 +213,9 @@ void PPPMDisp::init()
   triclinic_check();
   if (domain->dimension == 2)
     error->all(FLERR,"Cannot use PPPMDisp with 2d simulation");
+  if (comm->style != 0) 
+    error->universe_all(FLERR,"PPPMDisp can only currently be used with "
+                        "comm_style brick");
 
   if (slabflag == 0 && domain->nonperiodic > 0)
     error->all(FLERR,"Cannot use nonperiodic boundaries with PPPMDisp");
diff --git a/src/MISC/fix_deposit.cpp b/src/MISC/fix_deposit.cpp
index a804028397..213d39329b 100644
--- a/src/MISC/fix_deposit.cpp
+++ b/src/MISC/fix_deposit.cpp
@@ -37,6 +37,7 @@ using namespace FixConst;
 using namespace MathConst;
 
 enum{ATOM,MOLECULE};
+enum{LAYOUT_UNIFORM,LAYOUT_NONUNIFORM,LAYOUT_TILED};    // several files
 
 #define EPSILON 1.0e6
 
@@ -452,13 +453,25 @@ void FixDeposit::pre_exchange()
       if (newcoord[0] >= sublo[0] && newcoord[0] < subhi[0] &&
           newcoord[1] >= sublo[1] && newcoord[1] < subhi[1] &&
           newcoord[2] >= sublo[2] && newcoord[2] < subhi[2]) flag = 1;
-      else if (dimension == 3 && newcoord[2] >= domain->boxhi[2] &&
-               comm->myloc[2] == comm->procgrid[2]-1 &&
-               newcoord[0] >= sublo[0] && newcoord[0] < subhi[0] &&
-               newcoord[1] >= sublo[1] && newcoord[1] < subhi[1]) flag = 1;
-      else if (dimension == 2 && newcoord[1] >= domain->boxhi[1] &&
-               comm->myloc[1] == comm->procgrid[1]-1 &&
-               newcoord[0] >= sublo[0] && newcoord[0] < subhi[0]) flag = 1;
+      else if (dimension == 3 && newcoord[2] >= domain->boxhi[2]) {
+        if (comm->layout != LAYOUT_TILED) {
+          if (comm->myloc[2] == comm->procgrid[2]-1 &&
+              newcoord[0] >= sublo[0] && newcoord[0] < subhi[0] &&
+              newcoord[1] >= sublo[1] && newcoord[1] < subhi[1]) flag = 1;
+        } else {
+          if (comm->mysplit[2][1] == 1.0 &&
+              newcoord[0] >= sublo[0] && newcoord[0] < subhi[0] &&
+              newcoord[1] >= sublo[1] && newcoord[1] < subhi[1]) flag = 1;
+        } 
+      } else if (dimension == 2 && newcoord[1] >= domain->boxhi[1]) {
+        if (comm->layout != LAYOUT_TILED) {
+          if (comm->myloc[1] == comm->procgrid[1]-1 &&
+              newcoord[0] >= sublo[0] && newcoord[0] < subhi[0]) flag = 1;
+        } else {
+          if (comm->mysplit[1][1] == 1.0 &&
+              newcoord[0] >= sublo[0] && newcoord[0] < subhi[0]) flag = 1;
+        }
+      }
 
       if (flag) {
         if (mode == ATOM) atom->avec->create_atom(ntype,coords[m]);
diff --git a/src/REPLICA/verlet_split.cpp b/src/REPLICA/verlet_split.cpp
index 1ede274a76..a2808251db 100644
--- a/src/REPLICA/verlet_split.cpp
+++ b/src/REPLICA/verlet_split.cpp
@@ -52,6 +52,9 @@ VerletSplit::VerletSplit(LAMMPS *lmp, int narg, char **arg) :
   if (universe->procs_per_world[0] % universe->procs_per_world[1])
     error->universe_all(FLERR,"Verlet/split requires Rspace partition "
                         "size be multiple of Kspace partition size");
+  if (comm->style != 0) 
+    error->universe_all(FLERR,"Verlet/split can only currently be used with "
+                        "comm_style brick");
 
   // master = 1 for Rspace procs, 0 for Kspace procs
 
@@ -214,6 +217,9 @@ VerletSplit::~VerletSplit()
 
 void VerletSplit::init()
 {
+  if (comm->style != 0) 
+    error->universe_all(FLERR,"Verlet/split can only currently be used with "
+                        "comm_style brick");
   if (!force->kspace && comm->me == 0)
     error->warning(FLERR,"No Kspace calculation with verlet/split");
 
diff --git a/src/SHOCK/fix_append_atoms.cpp b/src/SHOCK/fix_append_atoms.cpp
index 5e7af01f6e..571e77b129 100644
--- a/src/SHOCK/fix_append_atoms.cpp
+++ b/src/SHOCK/fix_append_atoms.cpp
@@ -29,6 +29,8 @@
 using namespace LAMMPS_NS;
 using namespace FixConst;
 
+enum{LAYOUT_UNIFORM,LAYOUT_NONUNIFORM,LAYOUT_TILED};    // several files
+
 #define BIG      1.0e30
 #define EPSILON  1.0e-6
 
@@ -410,7 +412,15 @@ void FixAppendAtoms::pre_exchange()
 
   if (ntimestep % freq == 0) {
     if (spatflag==1) if (get_spatial()==0) return;
-    if (comm->myloc[2] == comm->procgrid[2]-1) {
+
+    int addflag = 0;
+    if (comm->layout != LAYOUT_TILED) {
+      if (comm->myloc[2] == comm->procgrid[2]-1) addflag = 1;
+    } else {
+      if (comm->mysplit[2][1] == 1.0) addflag = 1;
+    }
+
+    if (addflag) {
       double bboxlo[3],bboxhi[3];
 
       bboxlo[0] = domain->sublo[0]; bboxhi[0] = domain->subhi[0];
diff --git a/src/SRD/fix_srd.cpp b/src/SRD/fix_srd.cpp
index 3db73bab51..37dc068797 100644
--- a/src/SRD/fix_srd.cpp
+++ b/src/SRD/fix_srd.cpp
@@ -334,9 +334,12 @@ void FixSRD::init()
   if (bigexist && comm->ghost_velocity == 0)
     error->all(FLERR,"Fix srd requires ghost atoms store velocity");
   if (bigexist && collidestyle == NOSLIP && !atom->torque_flag)
-    error->all(FLERR,"Fix SRD no-slip requires atom attribute torque");
+    error->all(FLERR,"Fix srd no-slip requires atom attribute torque");
   if (initflag && update->dt != dt_big)
     error->all(FLERR,"Cannot change timestep once fix srd is setup");
+  if (comm->style != 0) 
+    error->universe_all(FLERR,"Fix srd can only currently be used with "
+                        "comm_style brick");
 
   // orthogonal vs triclinic simulation box
   // could be static or shearing box