Index: /issm/trunk-jpl/src/c/classes/Elements/Penta.cpp
===================================================================
--- /issm/trunk-jpl/src/c/classes/Elements/Penta.cpp	(revision 22076)
+++ /issm/trunk-jpl/src/c/classes/Elements/Penta.cpp	(revision 22077)
@@ -2819,4 +2819,23 @@
 			penta_node_ids[11]=iomodel->nodecounter+iomodel->numberofvertices+iomodel->elementtoedgeconnectivity[9*index+8]+1;
 			break;
+		case P1xP4Enum:
+			numnodes         = 15;
+			penta_node_ids   = xNew<int>(numnodes);
+			penta_node_ids[ 0]=iomodel->nodecounter+iomodel->elements[6*index+0]; /*Vertex 1*/
+			penta_node_ids[ 1]=iomodel->nodecounter+iomodel->elements[6*index+1]; /*Vertex 2*/
+			penta_node_ids[ 2]=iomodel->nodecounter+iomodel->elements[6*index+2]; /*Vertex 3*/
+			penta_node_ids[ 3]=iomodel->nodecounter+iomodel->elements[6*index+3]; /*Vertex 4*/
+			penta_node_ids[ 4]=iomodel->nodecounter+iomodel->elements[6*index+4]; /*Vertex 5*/
+			penta_node_ids[ 5]=iomodel->nodecounter+iomodel->elements[6*index+5]; /*Vertex 6*/
+			penta_node_ids[ 6]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+0]+1; /*mid vertical edge 1*/
+			penta_node_ids[ 7]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+1]+1; /*mid vertical edge 2*/
+			penta_node_ids[ 8]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+2]+1; /*mid vertical edge 3*/
+			penta_node_ids[ 9]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+0]+2; /* 1/4 vertical edge 1*/
+			penta_node_ids[10]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+1]+2; /* 1/4 vertical edge 2*/
+			penta_node_ids[11]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+2]+2; /* 1/4 vertical edge 3*/
+			penta_node_ids[12]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+0]+3; /* 3/4 vertical edge 1*/
+			penta_node_ids[13]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+1]+3; /* 3/4 vertical edge 2*/
+			penta_node_ids[14]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+2]+3; /* 3/4 vertical edge 3*/
+			break;
 		case P2xP4Enum:
 			numnodes         = 30;
@@ -2840,7 +2859,7 @@
 			penta_node_ids[16]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+1]+2; /* 1/4 vertical edge 2*/
 			penta_node_ids[17]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+2]+2; /* 1/4 vertical edge 3*/
-			penta_node_ids[18]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+0]+3; /* 2/4 vertical edge 1*/
-			penta_node_ids[19]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+1]+3; /* 2/4 vertical edge 2*/
-			penta_node_ids[20]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+2]+3; /* 2/4 vertical edge 3*/
+			penta_node_ids[18]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+0]+3; /* 3/4 vertical edge 1*/
+			penta_node_ids[19]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+1]+3; /* 3/4 vertical edge 2*/
+			penta_node_ids[20]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->elementtoedgeconnectivity[9*index+2]+3; /* 3/4 vertical edge 3*/
 			penta_node_ids[21]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->numberofedges+3*iomodel->elementtofaceconnectivity[5*index+2]+1; /* 1/4 vertical face 1*/
 			penta_node_ids[22]=iomodel->nodecounter+iomodel->numberofvertices+3*iomodel->numberofedges+3*iomodel->elementtofaceconnectivity[5*index+3]+1; /* 1/4 vertical face 2*/
Index: /issm/trunk-jpl/src/c/modules/IoModelToConstraintsx/IoModelToConstraintsx.cpp
===================================================================
--- /issm/trunk-jpl/src/c/modules/IoModelToConstraintsx/IoModelToConstraintsx.cpp	(revision 22076)
+++ /issm/trunk-jpl/src/c/modules/IoModelToConstraintsx/IoModelToConstraintsx.cpp	(revision 22077)
@@ -82,7 +82,6 @@
 			break;
 		case P1xP2Enum:
-			EdgesPartitioning(&my_edges,iomodel);
-			break;
 		case P1xP3Enum:
+		case P1xP4Enum:
 			EdgesPartitioning(&my_edges,iomodel);
 			break;
@@ -370,4 +369,31 @@
 				}
 				break;
+			case P1xP4Enum:
+				for(i=0;i<iomodel->numberofvertices;i++){
+					if((iomodel->my_vertices[i])){
+						if (!xIsNan<IssmDouble>(spcdata[i])){
+							constraints->AddObject(new SpcStatic(iomodel->constraintcounter+count+1,iomodel->nodecounter+i+1,dof,spcdata[i],analysis_type));
+							count++;
+						}
+					}
+				}
+				for(i=0;i<iomodel->numberofedges;i++){
+					if(iomodel->edges[i*3+2]==2){/*Vertical edges*/
+						if(my_edges[i]){
+							v1 = iomodel->edges[3*i+0]-1;
+							v2 = iomodel->edges[3*i+1]-1;
+							if(!xIsNan<IssmDouble>(spcdata[v1]) && !xIsNan<IssmDouble>(spcdata[v2])){
+								constraints->AddObject(new SpcStatic(iomodel->constraintcounter+count+1,iomodel->nodecounter+iomodel->numberofvertices+3*i+1,
+												dof,1./2.*spcdata[v1]+1./2.*spcdata[v2],analysis_type));
+								constraints->AddObject(new SpcStatic(iomodel->constraintcounter+count+2,iomodel->nodecounter+iomodel->numberofvertices+3*i+2,
+												dof,1./2.*spcdata[v1]+1./2.*spcdata[v2],analysis_type));
+								constraints->AddObject(new SpcStatic(iomodel->constraintcounter+count+3,iomodel->nodecounter+iomodel->numberofvertices+3*i+3,
+												dof,1./2.*spcdata[v1]+1./2.*spcdata[v2],analysis_type));
+								count=count+3;
+							}
+						}
+					}
+				}
+				break;
 			case P2xP1Enum:
 				for(i=0;i<iomodel->numberofvertices;i++){
Index: /issm/trunk-jpl/src/c/modules/ModelProcessorx/CreateNodes.cpp
===================================================================
--- /issm/trunk-jpl/src/c/modules/ModelProcessorx/CreateNodes.cpp	(revision 22076)
+++ /issm/trunk-jpl/src/c/modules/ModelProcessorx/CreateNodes.cpp	(revision 22077)
@@ -107,4 +107,26 @@
 					}
 					counter=counter+2;
+				}
+			}
+			break;
+		case P1xP4Enum:
+			EdgesPartitioning(&my_edges,iomodel);
+			for(i=0;i<iomodel->numberofvertices;i++){
+				if(iomodel->my_vertices[i]){
+					nodes->AddObject(new Node(id0+i+1,i,lid++,i,iomodel,analysis,approximation));
+				}
+			}
+			counter = iomodel->numberofvertices;
+			for(i=0;i<iomodel->numberofedges;i++){
+				if(iomodel->edges[i*3+2]==2){/*Vertical edges*/
+					if(my_edges[i]){
+						node = new Node(id0+iomodel->numberofvertices+3*i+1,counter+1,lid++,0,iomodel,analysis,approximation);
+						nodes->AddObject(node);
+						node = new Node(id0+iomodel->numberofvertices+3*i+2,counter+2,lid++,0,iomodel,analysis,approximation);
+						nodes->AddObject(node);
+						node = new Node(id0+iomodel->numberofvertices+3*i+3,counter+3,lid++,0,iomodel,analysis,approximation);
+						nodes->AddObject(node);
+					}
+					counter=counter+3;
 				}
 			}