Kokkos::ParallelReduceTag

Header File: Kokkos_ExecPolicy.hpp

A tag used in team size calculation functions to indicate that the functor for which a team size is being requested is being used in a parallel_reduce

Usage:

using PolicyType = Kokkos::TeamPolicy<>; 
PolicyType policy;
int recommended_team_size = policy.team_size_recommended(
    Functor, Kokkos::ParallelReduceTag());