| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include "chaschin_v_broadcast/mpi/include/ops_mpi.hpp" | ||
| 2 | |||
| 3 | #include <mpi.h> | ||
| 4 | |||
| 5 | namespace chaschin_v_broadcast { | ||
| 6 | |||
| 7 | template <typename T> | ||
| 8 |
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40 | ChaschinVBroadcastMPI<T>::ChaschinVBroadcastMPI(const InType &in) { |
| 9 | this->SetTypeOfTask(GetStaticTypeOfTask()); | ||
| 10 |
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40 | this->GetInput() = in; |
| 11 |
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40 | this->GetOutput().resize(0); |
| 12 | 40 | } | |
| 13 | |||
| 14 | template <typename T> | ||
| 15 |
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40 | bool ChaschinVBroadcastMPI<T>::ValidationImpl() { |
| 16 |
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40 | return (!this->GetInput().empty()) && (this->GetOutput().empty()); |
| 17 | } | ||
| 18 | |||
| 19 | template <typename T> | ||
| 20 | 40 | bool ChaschinVBroadcastMPI<T>::PreProcessingImpl() { | |
| 21 | 40 | return true; | |
| 22 | } | ||
| 23 | |||
| 24 | template <typename T> | ||
| 25 | 40 | bool ChaschinVBroadcastMPI<T>::RunImpl() { | |
| 26 | 40 | int rank = 0; | |
| 27 | 40 | int size = 0; | |
| 28 | 40 | MPI_Comm_rank(MPI_COMM_WORLD, &rank); | |
| 29 | 40 | MPI_Comm_size(MPI_COMM_WORLD, &size); | |
| 30 | |||
| 31 | MPI_Datatype mpi_type = MPI_DATATYPE_NULL; | ||
| 32 | if constexpr (std::is_same_v<T, int>) { | ||
| 33 | mpi_type = MPI_INT; | ||
| 34 | } else if constexpr (std::is_same_v<T, float>) { | ||
| 35 | mpi_type = MPI_FLOAT; | ||
| 36 | } else if constexpr (std::is_same_v<T, double>) { | ||
| 37 | mpi_type = MPI_DOUBLE; | ||
| 38 | } | ||
| 39 | |||
| 40 | auto &input = this->GetInput(); | ||
| 41 | 40 | int count = static_cast<int>(input.size()); | |
| 42 | void *data_ptr = input.data(); | ||
| 43 | |||
| 44 | const int root = 0; | ||
| 45 | 40 | int virtual_rank = (rank + size - root) % size; | |
| 46 | |||
| 47 | int mask = 1; | ||
| 48 |
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80 | while (mask < size) { |
| 49 |
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40 | if ((virtual_rank & mask) == 0) { |
| 50 | 20 | int dest = virtual_rank | mask; | |
| 51 |
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20 | if (dest < size) { |
| 52 | 20 | int real_dest = (dest + root) % size; | |
| 53 | 20 | MPI_Send(data_ptr, count, mpi_type, real_dest, 0, MPI_COMM_WORLD); | |
| 54 | } | ||
| 55 | } else { | ||
| 56 | 20 | int src = virtual_rank & (~mask); | |
| 57 | 20 | int real_src = (src + root) % size; | |
| 58 | 20 | MPI_Recv(data_ptr, count, mpi_type, real_src, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE); | |
| 59 | } | ||
| 60 | 40 | mask <<= 1; | |
| 61 | } | ||
| 62 | |||
| 63 | 40 | this->GetOutput() = input; | |
| 64 | 40 | return true; | |
| 65 | } | ||
| 66 | |||
| 67 | template <typename T> | ||
| 68 | 20 | bool ChaschinVBroadcastMPI<T>::PostProcessingImpl() { | |
| 69 | 20 | return true; | |
| 70 | } | ||
| 71 | |||
| 72 | template class chaschin_v_broadcast::ChaschinVBroadcastMPI<int>; | ||
| 73 | template class chaschin_v_broadcast::ChaschinVBroadcastMPI<float>; | ||
| 74 | template class chaschin_v_broadcast::ChaschinVBroadcastMPI<double>; | ||
| 75 | |||
| 76 | } // namespace chaschin_v_broadcast | ||
| 77 |