Implement MPI_IN_PLACE behavior for collectives

[simgrid.git] / src / smpi / smpi_pmpi.c

diff --git a/src/smpi/smpi_pmpi.c b/src/smpi/smpi_pmpi.c
index 70c1d26..e79d126 100644 (file)
--- a/src/smpi/smpi_pmpi.c
+++ b/src/smpi/smpi_pmpi.c
@@ -588,26 +588,41 @@ int PMPI_Group_range_incl(MPI_Group group, int n, int ranges[][3],
       size = 0;
       for (i = 0; i < n; i++) {
         for (rank = ranges[i][0];       /* First */
-             rank >= 0 && rank <= ranges[i][1]; /* Last */
-             rank += ranges[i][2] /* Stride */ ) {
+             rank >= 0; /* Last */
+              ) {
           size++;
+
+          rank += ranges[i][2]; /* Stride */
+         if (ranges[i][0]<ranges[i][1]){
+             if(rank > ranges[i][1])
+               break;
+         }else{
+             if(rank < ranges[i][1])
+               break;
+         }
         }
       }
-      if (size == smpi_group_size(group)) {
-        *newgroup = group;
-      } else {
+
         *newgroup = smpi_group_new(size);
         j = 0;
         for (i = 0; i < n; i++) {
           for (rank = ranges[i][0];     /* First */
-               rank >= 0 && rank <= ranges[i][1];       /* Last */
-               rank += ranges[i][2] /* Stride */ ) {
+               rank >= 0; /* Last */
+               ) {
             index = smpi_group_index(group, rank);
             smpi_group_set_mapping(*newgroup, index, j);
             j++;
+            rank += ranges[i][2]; /* Stride */
+           if (ranges[i][0]<ranges[i][1]){
+             if(rank > ranges[i][1])
+               break;
+           }else{
+             if(rank < ranges[i][1])
+               break;
+           }
           }
         }
-      }
+      //}
     }
     smpi_group_use(*newgroup);
     retval = MPI_SUCCESS;
@@ -792,7 +807,11 @@ int PMPI_Comm_create(MPI_Comm comm, MPI_Group group, MPI_Comm * newcomm)
     retval = MPI_ERR_GROUP;
   } else if (newcomm == NULL) {
     retval = MPI_ERR_ARG;
-  } else {
+  } else if(smpi_group_rank(group,smpi_process_index())==MPI_UNDEFINED){
+    *newcomm= MPI_COMM_NULL;
+    retval = MPI_SUCCESS;
+  }else{
+
     *newcomm = smpi_comm_new(group);
     retval = MPI_SUCCESS;
   }
@@ -1637,12 +1656,26 @@ int PMPI_Gather(void *sendbuf, int sendcount, MPI_Datatype sendtype,
 #endif
   if (comm == MPI_COMM_NULL) {
     retval = MPI_ERR_COMM;
-  } else if (sendtype == MPI_DATATYPE_NULL
-             || recvtype == MPI_DATATYPE_NULL) {
+  } else if ((( sendbuf != MPI_IN_PLACE) && (sendtype == MPI_DATATYPE_NULL)) ||
+            ((smpi_comm_rank(comm) == root) && (recvtype == MPI_DATATYPE_NULL))){
     retval = MPI_ERR_TYPE;
+  } else if ((( sendbuf != MPI_IN_PLACE) && (sendcount <0)) ||
+            ((smpi_comm_rank(comm) == root) && (recvcount <0))){
+    retval = MPI_ERR_COUNT;
   } else {
-    mpi_coll_gather_fun(sendbuf, sendcount, sendtype, recvbuf, recvcount,
+
+    char* sendtmpbuf = (char*) sendbuf;
+    int sendtmpcount = sendcount;
+    MPI_Datatype sendtmptype = sendtype;
+    if( (smpi_comm_rank(comm) == root) && (sendbuf == MPI_IN_PLACE )) {
+      sendtmpcount=0;
+      sendtmptype=recvtype;
+    }
+
+    mpi_coll_gather_fun(sendtmpbuf, sendtmpcount, sendtmptype, recvbuf, recvcount,
                     recvtype, root, comm);
+
+
     retval = MPI_SUCCESS;
   }
 #ifdef HAVE_TRACING
@@ -1668,13 +1701,24 @@ int PMPI_Gatherv(void *sendbuf, int sendcount, MPI_Datatype sendtype,
 #endif
   if (comm == MPI_COMM_NULL) {
     retval = MPI_ERR_COMM;
-  } else if (sendtype == MPI_DATATYPE_NULL
-             || recvtype == MPI_DATATYPE_NULL) {
+  } else if ((( sendbuf != MPI_IN_PLACE) && (sendtype == MPI_DATATYPE_NULL)) ||
+            ((smpi_comm_rank(comm) == root) && (recvtype == MPI_DATATYPE_NULL))){
     retval = MPI_ERR_TYPE;
+  } else if (( sendbuf != MPI_IN_PLACE) && (sendcount <0)){
+    retval = MPI_ERR_COUNT;
   } else if (recvcounts == NULL || displs == NULL) {
     retval = MPI_ERR_ARG;
   } else {
-    smpi_mpi_gatherv(sendbuf, sendcount, sendtype, recvbuf, recvcounts,
+
+    char* sendtmpbuf = (char*) sendbuf;
+    int sendtmpcount = sendcount;
+    MPI_Datatype sendtmptype = sendtype;
+    if( (smpi_comm_rank(comm) == root) && (sendbuf == MPI_IN_PLACE )) {
+      sendtmpcount=0;
+      sendtmptype=recvtype;
+    }
+
+    smpi_mpi_gatherv(sendtmpbuf, sendtmpcount, sendtmptype, recvbuf, recvcounts,
                      displs, recvtype, root, comm);
     retval = MPI_SUCCESS;
   }
@@ -1700,10 +1744,20 @@ int PMPI_Allgather(void *sendbuf, int sendcount, MPI_Datatype sendtype,
 #endif
   if (comm == MPI_COMM_NULL) {
     retval = MPI_ERR_COMM;
-  } else if (sendtype == MPI_DATATYPE_NULL
-             || recvtype == MPI_DATATYPE_NULL) {
+  } else if ((( sendbuf != MPI_IN_PLACE) && (sendtype == MPI_DATATYPE_NULL)) ||
+            (recvtype == MPI_DATATYPE_NULL)){
     retval = MPI_ERR_TYPE;
+  } else if ((( sendbuf != MPI_IN_PLACE) && (sendcount <0)) ||
+            (recvcount <0)){
+    retval = MPI_ERR_COUNT;
   } else {
+
+    if(sendbuf == MPI_IN_PLACE) {
+      sendbuf=((char*)recvbuf)+smpi_datatype_get_extent(recvtype)*recvcount*smpi_comm_rank(comm);
+      sendcount=recvcount;
+      sendtype=recvtype;
+    }
+
     mpi_coll_allgather_fun(sendbuf, sendcount, sendtype, recvbuf, recvcount,
                            recvtype, comm);
     retval = MPI_SUCCESS;
@@ -1729,12 +1783,21 @@ int PMPI_Allgatherv(void *sendbuf, int sendcount, MPI_Datatype sendtype,
 #endif
   if (comm == MPI_COMM_NULL) {
     retval = MPI_ERR_COMM;
-  } else if (sendtype == MPI_DATATYPE_NULL
-             || recvtype == MPI_DATATYPE_NULL) {
+  } else if ((( sendbuf != MPI_IN_PLACE) && (sendtype == MPI_DATATYPE_NULL)) ||
+            (recvtype == MPI_DATATYPE_NULL)){
     retval = MPI_ERR_TYPE;
+  } else if (( sendbuf != MPI_IN_PLACE) && (sendcount <0)){
+    retval = MPI_ERR_COUNT;
   } else if (recvcounts == NULL || displs == NULL) {
     retval = MPI_ERR_ARG;
   } else {
+
+    if(sendbuf == MPI_IN_PLACE) {
+      sendbuf=((char*)recvbuf)+smpi_datatype_get_extent(recvtype)*displs[smpi_comm_rank(comm)];
+      sendcount=recvcounts[smpi_comm_rank(comm)];
+      sendtype=recvtype;
+    }
+
     mpi_coll_allgatherv_fun(sendbuf, sendcount, sendtype, recvbuf, recvcounts,
                         displs, recvtype, comm);
     retval = MPI_SUCCESS;
@@ -1763,10 +1826,14 @@ int PMPI_Scatter(void *sendbuf, int sendcount, MPI_Datatype sendtype,
 #endif
   if (comm == MPI_COMM_NULL) {
     retval = MPI_ERR_COMM;
-  } else if (sendtype == MPI_DATATYPE_NULL
-             || recvtype == MPI_DATATYPE_NULL) {
+  } else if (((smpi_comm_rank(comm)==root) && (sendtype == MPI_DATATYPE_NULL))
+             || ((recvbuf !=MPI_IN_PLACE) && (recvtype == MPI_DATATYPE_NULL))) {
     retval = MPI_ERR_TYPE;
   } else {
+
+    if(recvbuf==MPI_IN_PLACE){
+       recvcount=0;
+    }
     mpi_coll_scatter_fun(sendbuf, sendcount, sendtype, recvbuf, recvcount,
                      recvtype, root, comm);
     retval = MPI_SUCCESS;
@@ -1794,12 +1861,17 @@ int PMPI_Scatterv(void *sendbuf, int *sendcounts, int *displs,
 #endif
   if (comm == MPI_COMM_NULL) {
     retval = MPI_ERR_COMM;
-  } else if (sendtype == MPI_DATATYPE_NULL
-             || recvtype == MPI_DATATYPE_NULL) {
-    retval = MPI_ERR_TYPE;
   } else if (sendcounts == NULL || displs == NULL) {
     retval = MPI_ERR_ARG;
+  } else if (((smpi_comm_rank(comm)==root) && (sendtype == MPI_DATATYPE_NULL))
+             || ((recvbuf !=MPI_IN_PLACE) && (recvtype == MPI_DATATYPE_NULL))) {
+    retval = MPI_ERR_TYPE;
   } else {
+
+    if(recvbuf==MPI_IN_PLACE){
+       recvcount=0;
+    }
+
     smpi_mpi_scatterv(sendbuf, sendcounts, displs, sendtype, recvbuf,
                       recvcount, recvtype, root, comm);
     retval = MPI_SUCCESS;
@@ -1829,7 +1901,19 @@ int PMPI_Reduce(void *sendbuf, void *recvbuf, int count,
   } else if (datatype == MPI_DATATYPE_NULL || op == MPI_OP_NULL) {
     retval = MPI_ERR_ARG;
   } else {
-    mpi_coll_reduce_fun(sendbuf, recvbuf, count, datatype, op, root, comm);
+
+    char* sendtmpbuf = (char*) sendbuf;
+    if( sendbuf == MPI_IN_PLACE ) {
+      sendtmpbuf = (char *)xbt_malloc(count*smpi_datatype_get_extent(datatype));
+      smpi_datatype_copy(recvbuf, count, datatype,sendtmpbuf, count, datatype);
+    }
+
+    mpi_coll_reduce_fun(sendtmpbuf, recvbuf, count, datatype, op, root, comm);
+
+    if( sendbuf == MPI_IN_PLACE ) {
+      xbt_free(sendtmpbuf);
+    }
+
     retval = MPI_SUCCESS;
   }
 #ifdef HAVE_TRACING
@@ -1873,8 +1957,21 @@ int PMPI_Allreduce(void *sendbuf, void *recvbuf, int count,
   } else if (op == MPI_OP_NULL) {
     retval = MPI_ERR_OP;
   } else {
-      mpi_coll_allreduce_fun(sendbuf, recvbuf, count, datatype, op, comm);
+
+    char* sendtmpbuf = (char*) sendbuf;
+    if( sendbuf == MPI_IN_PLACE ) {
+      sendtmpbuf = (char *)xbt_malloc(count*smpi_datatype_get_extent(datatype));
+      smpi_datatype_copy(recvbuf, count, datatype,sendtmpbuf, count, datatype);
+    }
+
+    mpi_coll_allreduce_fun(sendtmpbuf, recvbuf, count, datatype, op, comm);
+
+    if( sendbuf == MPI_IN_PLACE ) {
+      xbt_free(sendtmpbuf);
+    }
+
     retval = MPI_SUCCESS;
+
   }
 #ifdef HAVE_TRACING
   TRACE_smpi_collective_out(rank, -1, __FUNCTION__);
@@ -1932,8 +2029,12 @@ int PMPI_Reduce_scatter(void *sendbuf, void *recvbuf, int *recvcounts,
   } else if (recvcounts == NULL) {
     retval = MPI_ERR_ARG;
   } else {
+    void* sendtmpbuf=sendbuf;
+    if(sendbuf==MPI_IN_PLACE){
+      sendtmpbuf=recvbuf;
+    }
 
-    mpi_coll_reduce_scatter_fun(sendbuf, recvbuf, recvcounts,
+    mpi_coll_reduce_scatter_fun(sendtmpbuf, recvbuf, recvcounts,
                        datatype,  op, comm);
     retval = MPI_SUCCESS;
   }
@@ -2249,474 +2350,474 @@ int PMPI_Initialized(int* flag) {
 /* The following calls are not yet implemented and will fail at runtime. */
 /* Once implemented, please move them above this notice. */
 
-static inline int not_yet_implemented(void) {
-         XBT_WARN("Not yet implemented : line %d in %s", __LINE__, __FUNCTION__);
-   return MPI_SUCCESS;
-}
+#define NOT_YET_IMPLEMENTED {\
+       XBT_WARN("Not yet implemented : %s. Please contact the Simgrid team if support is needed", __FUNCTION__);\
+       return MPI_SUCCESS;\
+        }
 
 
 int PMPI_Type_dup(MPI_Datatype datatype, MPI_Datatype *newtype){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_set_name(MPI_Datatype  datatype, char * name)
 {
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_get_name(MPI_Datatype  datatype, char * name, int* len)
 {
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Pack_size(int incount, MPI_Datatype datatype, MPI_Comm comm, int* size) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Cart_coords(MPI_Comm comm, int rank, int maxdims, int* coords) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Cart_create(MPI_Comm comm_old, int ndims, int* dims, int* periods, int reorder, MPI_Comm* comm_cart) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Cart_get(MPI_Comm comm, int maxdims, int* dims, int* periods, int* coords) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Cart_map(MPI_Comm comm_old, int ndims, int* dims, int* periods, int* newrank) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Cart_rank(MPI_Comm comm, int* coords, int* rank) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Cart_shift(MPI_Comm comm, int direction, int displ, int* source, int* dest) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Cart_sub(MPI_Comm comm, int* remain_dims, MPI_Comm* comm_new) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Cartdim_get(MPI_Comm comm, int* ndims) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Graph_create(MPI_Comm comm_old, int nnodes, int* index, int* edges, int reorder, MPI_Comm* comm_graph) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Graph_get(MPI_Comm comm, int maxindex, int maxedges, int* index, int* edges) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Graph_map(MPI_Comm comm_old, int nnodes, int* index, int* edges, int* newrank) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Graph_neighbors(MPI_Comm comm, int rank, int maxneighbors, int* neighbors) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Graph_neighbors_count(MPI_Comm comm, int rank, int* nneighbors) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Graphdims_get(MPI_Comm comm, int* nnodes, int* nedges) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Topo_test(MPI_Comm comm, int* top_type) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Errhandler_create(MPI_Handler_function* function, MPI_Errhandler* errhandler) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Errhandler_free(MPI_Errhandler* errhandler) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Errhandler_get(MPI_Comm comm, MPI_Errhandler* errhandler) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Error_string(int errorcode, char* string, int* resultlen) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Errhandler_set(MPI_Comm comm, MPI_Errhandler errhandler) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_set_errhandler(MPI_Comm comm, MPI_Errhandler errhandler) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Cancel(MPI_Request* request) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Buffer_attach(void* buffer, int size) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Buffer_detach(void* buffer, int* size) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_test_inter(MPI_Comm comm, int* flag) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_get_attr (MPI_Comm comm, int comm_keyval, void *attribute_val, int *flag)
 {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_set_attr (MPI_Comm comm, int comm_keyval, void *attribute_val)
 {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_delete_attr (MPI_Comm comm, int comm_keyval)
 {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_create_keyval(MPI_Comm_copy_attr_function* copy_fn, MPI_Comm_delete_attr_function* delete_fn, int* keyval, void* extra_state)
 {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_free_keyval(int* keyval) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Pcontrol(const int level )
 {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Unpack(void* inbuf, int insize, int* position, void* outbuf, int outcount, MPI_Datatype type, MPI_Comm comm) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_get_attr (MPI_Datatype type, int type_keyval, void *attribute_val, int* flag)
 {
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_set_attr (MPI_Datatype type, int type_keyval, void *attribute_val)
 {
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_delete_attr (MPI_Datatype type, int comm_keyval)
 {
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_create_keyval(MPI_Type_copy_attr_function* copy_fn, MPI_Type_delete_attr_function* delete_fn, int* keyval, void* extra_state)
 {
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_free_keyval(int* keyval) {
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Intercomm_create(MPI_Comm local_comm, int local_leader, MPI_Comm peer_comm, int remote_leader, int tag, MPI_Comm* comm_out) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Intercomm_merge(MPI_Comm comm, int high, MPI_Comm* comm_out) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Bsend(void* buf, int count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Bsend_init(void* buf, int count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm, MPI_Request* request) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Ibsend(void* buf, int count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm, MPI_Request* request) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_remote_group(MPI_Comm comm, MPI_Group* group) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_remote_size(MPI_Comm comm, int* size) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Attr_delete(MPI_Comm comm, int keyval) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Attr_get(MPI_Comm comm, int keyval, void* attr_value, int* flag) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Attr_put(MPI_Comm comm, int keyval, void* attr_value) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Rsend(void* buf, int count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Rsend_init(void* buf, int count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm, MPI_Request* request) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Irsend(void* buf, int count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm, MPI_Request* request) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Keyval_create(MPI_Copy_function* copy_fn, MPI_Delete_function* delete_fn, int* keyval, void* extra_state) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Keyval_free(int* keyval) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Test_cancelled(MPI_Status* status, int* flag) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Pack(void* inbuf, int incount, MPI_Datatype type, void* outbuf, int outcount, int* position, MPI_Comm comm) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Pack_external_size(char *datarep, int incount, MPI_Datatype datatype, MPI_Aint *size){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Pack_external(char *datarep, void *inbuf, int incount, MPI_Datatype datatype, void *outbuf, MPI_Aint outcount, MPI_Aint *position){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Unpack_external( char *datarep, void *inbuf, MPI_Aint insize, MPI_Aint *position, void *outbuf, int outcount, MPI_Datatype datatype){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Get_elements(MPI_Status* status, MPI_Datatype datatype, int* elements) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Dims_create(int nnodes, int ndims, int* dims) {
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Win_fence( int assert,  MPI_Win win){
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Win_free( MPI_Win* win){
-   return not_yet_implemented();
+   NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Win_create( void *base, MPI_Aint size, int disp_unit, MPI_Info info, MPI_Comm comm, MPI_Win *win){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Info_create( MPI_Info *info){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Info_set( MPI_Info info, char *key, char *value){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Info_free( MPI_Info *info){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Get( void *origin_addr, int origin_count, MPI_Datatype origin_datatype, int target_rank,
     MPI_Aint target_disp, int target_count, MPI_Datatype target_datatype, MPI_Win win){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_get_envelope( MPI_Datatype datatype, int *num_integers,
                           int *num_addresses, int *num_datatypes, int *combiner){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_get_contents(MPI_Datatype datatype, int max_integers, int max_addresses,
                           int max_datatypes, int* array_of_integers, MPI_Aint* array_of_addresses,
                           MPI_Datatype* array_of_datatypes){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_create_darray(int size, int rank, int ndims, int* array_of_gsizes,
                             int* array_of_distribs, int* array_of_dargs, int* array_of_psizes,
                             int order, MPI_Datatype oldtype, MPI_Datatype *newtype) {
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_create_resized(MPI_Datatype oldtype,MPI_Aint lb, MPI_Aint extent, MPI_Datatype *newtype){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_create_subarray(int ndims,int *array_of_sizes, int *array_of_subsizes, int *array_of_starts, int order, MPI_Datatype oldtype, MPI_Datatype *newtype){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Type_match_size(int typeclass,int size,MPI_Datatype *datatype){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Alltoallw( void *sendbuf, int *sendcnts, int *sdispls, MPI_Datatype *sendtypes,
                    void *recvbuf, int *recvcnts, int *rdispls, MPI_Datatype *recvtypes,
                    MPI_Comm comm){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Exscan(void *sendbuf, void *recvbuf, int count, MPI_Datatype datatype,
                 MPI_Op op, MPI_Comm comm){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_set_name(MPI_Comm comm, char* name){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_dup_with_info(MPI_Comm comm, MPI_Info info, MPI_Comm * newcomm){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_split_type(MPI_Comm comm, int split_type, int key, MPI_Info info, MPI_Comm *newcomm){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_set_info (MPI_Comm comm, MPI_Info info){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_get_info (MPI_Comm comm, MPI_Info* info){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Info_get(MPI_Info info,char *key,int valuelen, char *value, int *flag){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_create_errhandler( MPI_Comm_errhandler_fn *function, MPI_Errhandler *errhandler){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Add_error_class( int *errorclass){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Add_error_code(  int errorclass, int *errorcode){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Add_error_string( int errorcode, char *string){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_call_errhandler(MPI_Comm comm,int errorcode){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Info_dup(MPI_Info info, MPI_Info *newinfo){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Info_delete(MPI_Info info, char *key){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Info_get_nkeys( MPI_Info info, int *nkeys){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Info_get_nthkey( MPI_Info info, int n, char *key){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Info_get_valuelen( MPI_Info info, char *key, int *valuelen, int *flag){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Request_get_status( MPI_Request request, int *flag, MPI_Status *status){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int MPI_Request_get_status( MPI_Request request, int *flag, MPI_Status *status){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Grequest_start( MPI_Grequest_query_function *query_fn, MPI_Grequest_free_function *free_fn, MPI_Grequest_cancel_function *cancel_fn, void *extra_state, MPI_Request *request){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Grequest_complete( MPI_Request request){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Status_set_cancelled(MPI_Status *status,int flag){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Status_set_elements( MPI_Status *status, MPI_Datatype datatype, int count){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_connect( char *port_name, MPI_Info info, int root, MPI_Comm comm, MPI_Comm *newcomm){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Publish_name( char *service_name, MPI_Info info, char *port_name){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Unpublish_name( char *service_name, MPI_Info info, char *port_name){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Lookup_name( char *service_name, MPI_Info info, char *port_name){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_join( int fd, MPI_Comm *intercomm){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Open_port( MPI_Info info, char *port_name){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Close_port(char *port_name){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_accept( char *port_name, MPI_Info info, int root, MPI_Comm comm, MPI_Comm *newcomm){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_spawn( char *command, char **argv, int maxprocs, MPI_Info info, int root, MPI_Comm comm, MPI_Comm *intercomm, int* array_of_errcodes){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_spawn_multiple( int count, char **array_of_commands, char*** array_of_argv,
                              int* array_of_maxprocs, MPI_Info* array_of_info, int root,
                              MPI_Comm comm, MPI_Comm *intercomm, int* array_of_errcodes){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }
 
 int PMPI_Comm_get_parent( MPI_Comm *parent){
-  return not_yet_implemented();
+  NOT_YET_IMPLEMENTED
 }