OMPI_OP_SUM        45 ompi/mca/coll/portals4/coll_portals4_component.c         [OMPI_OP_SUM] = PTL_SUM,
OMPI_OP_SUM       510 ompi/mca/osc/rdma/osc_rdma_accumulate.c     [OMPI_OP_SUM] = MCA_BTL_ATOMIC_ADD,
OMPI_OP_SUM       287 ompi/op/op.c           ompi_mpi_op_sum.op.op_type = OMPI_OP_SUM;