Exemplo n.º 1
0
  KOKKOS_INLINE_FUNCTION
  size_t get_thread_id(const typename Kokkos::TeamPolicy<ExecutionSpace>::member_type & teamMember) const{
#if defined( KOKKOS_HAVE_SERIAL )
  if (Kokkos::Impl::is_same< Kokkos::Serial , ExecutionSpace >::value){
    return 0;
  }
#endif

#if defined( KOKKOS_HAVE_PTHREAD )
  if (Kokkos::Impl::is_same< Kokkos::Threads , ExecutionSpace >::value){
    return Kokkos::Threads::hardware_thread_id();
  }
#endif

#if defined( KOKKOS_HAVE_OPENMP )
  if (Kokkos::Impl::is_same< Kokkos::OpenMP, ExecutionSpace >::value){
    return Kokkos::OpenMP::hardware_thread_id();
  }
#endif

    return teamMember.league_rank()  * teamMember.team_size()+ teamMember.team_rank();
  }
Exemplo n.º 2
0
  KOKKOS_INLINE_FUNCTION
  void operator()(const typename Kokkos::TeamPolicy<ExecutionSpace>::member_type & teamMember) const {


    Kokkos::single(Kokkos::PerTeam(teamMember),[=] () {
      printf("teamMember teamsize:%d\n", teamMember.team_size());
    });
    volatile idx * myData = NULL;
    size_t tid = this->get_thread_id(teamMember);

    int trial = 0;
    while (myData == NULL){
      ++trial;
      Kokkos::single(Kokkos::PerThread(teamMember),[&] (volatile idx * &memptr) {
        memptr = (volatile idx * )this->my_memory_pool.allocate_chunk(tid);

      }, myData);

    }


    for (int i = 0; i < 100; ++i){

      Kokkos::parallel_for(
          Kokkos::ThreadVectorRange(teamMember, 32),
          [&] (int j) {
        myData[j] = i;
      });
    }


    Kokkos::parallel_for(
        Kokkos::ThreadVectorRange(teamMember, 32),
        [&] (int j) {
      myData[j] = -1;
    });



    Kokkos::single(Kokkos::PerThread(teamMember),[=] () {
      /*printf("me:%ld lr:%d ts:%d tr:%d, Had Memory location:%ld with chunk_index:%ld in this many tries:%d\n",
          tid, (int) teamMember.league_rank(), (int) teamMember.team_size(),   (int)  teamMember.team_rank(),
          myData,my_memory_pool.get_chunk_index((idx *) myData), trial );*/
      this->my_memory_pool.release_chunk((idx *) myData);
    });

    myData = NULL;
  }
Exemplo n.º 3
0
  KOKKOS_INLINE_FUNCTION
  void operator() (typename Kokkos::TeamPolicy<DeviceType>::member_type dev) const {
    const int chunk = ((nlast - nfirst + dev.league_size() - 1 ) /
                       dev.league_size());
    const int teamstart = chunk*dev.league_rank() + nfirst;
    const int teamend = (teamstart + chunk) < nlast?(teamstart + chunk):nlast;
    int mysend = 0;
    for (int i=teamstart + dev.team_rank(); i<teamend; i+=dev.team_size()) {
      if (x(i,dim) >= lo && x(i,dim) <= hi) mysend++;
    }
    const int my_store_pos = dev.team_scan(mysend,&nsend(0));

    if (my_store_pos+mysend < maxsendlist) {
    mysend = my_store_pos;
      for(int i=teamstart + dev.team_rank(); i<teamend; i+=dev.team_size()){
        if (x(i,dim) >= lo && x(i,dim) <= hi) {
          sendlist(iswap,mysend++) = i;
        }
      }
    }
  }