MPI_Cancel(request, ierror)
integer request, ierror
　　取消一个通信请求

MPI_Cart_coords(comm, rank, maxdims, coords, ierror)
integer comm, rank , maxdims, coords(*), ierror
　　给出一个进程所在组的标识号，得到其卡氏坐标值

MPI_Cart_creat(comm_old, ndims, dims, periods, reorder, comm_cart, ierror)
integer comm_old, ndims, dims(*), comm_cart, ierror
Logical periods(*), reorder
　　按给定的拓扑创建一个新的通信域

MPI_Cart_get(comm, maxdims, dims, periods, coords, ierror)
integer comm, maxdims, dims(*), coords(*), ierror
Logical periods(*)
　　得到给定通信域的卡氏拓扑信息

MPI_Cart_map(comm, ndims, dims, periods, newrank, ierror)
integer comm, ndims, dims(*), newrank, ierror
Logical periods(*)
　　将进程向指定的拓扑进行映射

MPI_Cart_rank(comm, coords, rank, ierror)
integer comm, coords(*), rank, ierror
　　由卡氏坐标得到进程标识号

MPI_Cart_shift(comm, direction, disp, rank_source, rank_dest, ierror
　　给定进程标识号、平移方向与大小，得到相对于当前进程的源和目的进程的标识号

MPI_Cart_sub(comm, remain_dims, newcomm, ierror)
integer comm, newcomm, ierror
Logical remain_dims(*)
　　将一个通信域，保留给定的维，得到子通信域

MPI_Cartdim_get(comm, ndism, ierror)
integer comm, ndims, ierror
　　得到给定通信域的卡氏拓扑

MPI_Comm_compare(comm1, comm2, result, ierror)
integer comm, group, newcomm, ierror
　　两个通信域的比较

MPI_Comm_creat(comm, group, newcomm, ierror)
integer comm, group, newcomm, ierror
　　创建新的通信域

MPI_Comm_dup(comm, newcomm, ierror)
integer comm, newcomm, ierror
　　通信域复制

MPI_Comm_free(comm, ierror)
integer comm, ierror
　　撤消一个通信域对象

MPI_Comm_group(comm, group, ierror)
integer comm, group, ierror
　　由给定的通信域得到组信息

MPI_Comm_rank(comm, rank, ierror)
integer comm, rank, ierror
　　得到调用进程在给定通信域中的进程标识号

MPI_comm_remote_group(comm, group, ierror)
integer comm, group, ierror
　　得到组间通信域的远程组

MPI_comm_remote_size(comm, size, ierror)
integer comm, size, ierror
　　得到远程组的进程数

MPI_Comm_set_attr(comm, keyval, attribute_val, ierror)
integer comm, keyval, ierror
integer (kind=MPI_ADDRESS_KIND) attribute_val
　　根据关键词保存属性值

MPI_Comm_size(comm, size, ierror)
integer comm, size, ierror
　　得到通信域组的大小

MPI_Comm_split(comm, color, key, newcomm, ierror)
integer comm, color, key, newcomm, ierror
　　按照给定的颜色和关键词创建新的通信域

MPI_Comm_test_inter(comm, flag, ierror)
integer comm, ierror
Logical flag
　　测试给定通信域是否是域间域