src1              646 ompi/op/op.h       void *restrict src1;
src1              649 ompi/op/op.h       src1 = source1;
src1              654 ompi/op/op.h           op->o_3buff_intrinsic.fns[ompi_op_ddt_map[dtype->id]](src1, src2,
src1              659 ompi/op/op.h           ompi_3buff_op_user (op, src1, src2, tgt, count, dtype);