Multinode MPI implementation should be done later in its own branch. The focus of this branch is to revise the node and device layers. Commented out references to the Grid layer.

src/core/grid.cu

@@ -30,6 +30,7 @@ acGridInit(const AcMeshInfo node_config)
 {
     acNodeCreate(0, node_config, &nodes[0]);
     ++num_nodes;
+    WARNING("Proper multinode not yet implemented");
     return AC_FAILURE;
 }
 
@@ -39,6 +40,7 @@ acGridQuit(void)
 {
     acNodeDestroy(nodes[0]);
     --num_nodes;
+    WARNING("Proper multinode not yet implemented");
     return AC_FAILURE;
 }
 
@@ -46,7 +48,10 @@ acGridQuit(void)
 AcResult
 acGridSynchronizeStream(const Stream stream)
 {
-    WARNING("Not implemented");
+    for (int i = 0; i < num_nodes; ++i) {
+        acNodeSynchronizeStream(nodes[i], stream);
+    }
+    WARNING("Proper multinode not yet implemented");
     return AC_FAILURE;
 }
 
@@ -54,7 +59,10 @@ acGridSynchronizeStream(const Stream stream)
 AcResult
 acGridSwapBuffers(void)
 {
-    WARNING("Not implemented");
+    for (int i = 0; i < num_nodes; ++i) {
+        acNodeSwapBuffers(nodes[i]);
+    }
+    WARNING("Proper multinode not yet implemented");
     return AC_FAILURE;
 }
 
@@ -62,7 +70,10 @@ acGridSwapBuffers(void)
 AcResult
 acGridLoadConstant(const Stream stream, const AcRealParam param, const AcReal value)
 {
-    WARNING("Not implemented");
+    for (int i = 0; i < num_nodes; ++i) {
+        acNodeLoadConstant(node, stream, param, value);
+    }
+    WARNING("Proper multinode not yet implemented");
     return AC_FAILURE;
 }
 
@@ -72,7 +83,10 @@ acGridLoadVertexBufferWithOffset(const Stream stream, const AcMesh host_mesh,
                                  const VertexBufferHandle vtxbuf_handle, const int3 src,
                                  const int3 dst, const int num_vertices)
 {
-    WARNING("Not implemented");
+    for (int i = 0; i < num_nodes; ++i) {
+        acNodeLoadVertexBufferWithOffset(node, stream, host_mesh, vtxbuf_handle)
+    }
+    WARNING("Proper multinode not yet implemented");
     return AC_FAILURE;
 }
 
@@ -81,7 +95,10 @@ AcResult
 acGridLoadMeshWithOffset(const Stream stream, const AcMesh host_mesh, const int3 src,
                          const int3 dst, const int num_vertices)
 {
-    WARNING("Not implemented");
+    for (int i = 0; i < num_nodes; ++i) {
+        acNodeLoadMeshWithOffset(nodes[i], stream, host_mesh, src, dst, num_vertices);
+    }
+    WARNING("Proper multinode not yet implemented");
     return AC_FAILURE;
 }
 
@@ -90,7 +107,10 @@ AcResult
 acGridLoadVertexBuffer(const Stream stream, const AcMesh host_mesh,
                        const VertexBufferHandle vtxbuf_handle)
 {
-    WARNING("Not implemented");
+    for (int i = 0; i < num_nodes; ++i) {
+        acNodeLoadVertexBuffer(node, stream, host_mesh, vtxbuf_handle);
+    }
+    WARNING("Proper multinode not yet implemented");
     return AC_FAILURE;
 }