void *recvbuf, int recvcount, MPI_Datatype recvtype,
int root, MPI_Comm comm));
+/** \ingroup MPI barrier
+ * \brief The list of all available allgather collectives
+ */
+XBT_PUBLIC_DATA(s_mpi_coll_description_t) mpi_coll_barrier_description[];
+XBT_PUBLIC_DATA(int (*mpi_coll_barrier_fun)
+ (MPI_Comm comm));
+
+
XBT_PUBLIC(void) coll_help(const char *category,
s_mpi_coll_description_t * table);
XBT_PUBLIC(int) find_coll_description(s_mpi_coll_description_t * table,