- MPI:reduce-TYPEprocedure
Reduces values on all processes within a group, using a global reduce operation, and return the result at the root process. OP is one of the following: MPI:i_max, MPI:i_min, MPI:i_sum, MPI:i_prod, MPI:i_land, MPI:i_lor, MPI:i_xor (integer operations); and MPI:f_max, MPI:f_min, MPI:f_sum, MPI:f_prod (floating point operations). TYPE is one of the following: int, flonum, bytevector, s8vector, u8vector, s16vector, u16vector, s32vector, u32vector, f32vector, f64vector