[1034] | 1 | /*! |
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| 2 | \file ep_scan.cpp |
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| 3 | \since 2 may 2016 |
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| 4 | |
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| 5 | \brief Definitions of MPI collective function: MPI_Scan |
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| 6 | */ |
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| 7 | |
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| 8 | #include "ep_lib.hpp" |
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| 9 | #include <mpi.h> |
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| 10 | #include "ep_declaration.hpp" |
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| 11 | |
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| 12 | using namespace std; |
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| 13 | |
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| 14 | namespace ep_lib |
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| 15 | { |
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| 16 | template<typename T> |
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| 17 | T max_op(T a, T b) |
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| 18 | { |
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| 19 | return max(a,b); |
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| 20 | } |
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| 21 | |
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| 22 | template<typename T> |
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| 23 | T min_op(T a, T b) |
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| 24 | { |
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| 25 | return min(a,b); |
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| 26 | } |
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| 27 | |
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| 28 | |
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| 29 | int MPI_Scan_local(const void *sendbuf, void *recvbuf, int count, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm) |
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| 30 | { |
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| 31 | if(datatype == MPI_INT) |
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| 32 | { |
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| 33 | return MPI_Scan_local_int(sendbuf, recvbuf, count, op, comm); |
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| 34 | } |
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| 35 | else if(datatype == MPI_FLOAT) |
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| 36 | { |
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| 37 | return MPI_Scan_local_float(sendbuf, recvbuf, count, op, comm); |
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| 38 | } |
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| 39 | else if(datatype == MPI_DOUBLE) |
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| 40 | { |
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| 41 | return MPI_Scan_local_double(sendbuf, recvbuf, count, op, comm); |
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| 42 | } |
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| 43 | else if(datatype == MPI_LONG) |
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| 44 | { |
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| 45 | return MPI_Scan_local_long(sendbuf, recvbuf, count, op, comm); |
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| 46 | } |
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| 47 | else if(datatype == MPI_UNSIGNED_LONG) |
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| 48 | { |
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| 49 | return MPI_Scan_local_ulong(sendbuf, recvbuf, count, op, comm); |
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| 50 | } |
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| 51 | else if(datatype == MPI_CHAR) |
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| 52 | { |
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| 53 | return MPI_Scan_local_char(sendbuf, recvbuf, count, op, comm); |
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| 54 | } |
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| 55 | else |
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| 56 | { |
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| 57 | printf("MPI_Scan Datatype not supported!\n"); |
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| 58 | exit(0); |
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| 59 | } |
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| 60 | |
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| 61 | } |
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| 62 | |
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| 63 | |
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| 64 | |
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| 65 | |
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| 66 | int MPI_Scan_local_int(const void *sendbuf, void *recvbuf, int count, MPI_Op op, MPI_Comm comm) |
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| 67 | { |
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| 68 | int my_rank = comm.ep_comm_ptr->size_rank_info[1].first; |
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| 69 | int num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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| 70 | |
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| 71 | int *buffer = comm.my_buffer->buf_int; |
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| 72 | int *send_buf = static_cast<int*>(const_cast<void*>(sendbuf)); |
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| 73 | int *recv_buf = static_cast<int*>(recvbuf); |
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| 74 | |
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| 75 | for(int j=0; j<count; j+=BUFFER_SIZE) |
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| 76 | { |
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| 77 | if(my_rank == 0) |
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| 78 | { |
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| 79 | |
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| 80 | #pragma omp critical (write_to_buffer) |
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| 81 | { |
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| 82 | copy(send_buf+j, send_buf+j+min(BUFFER_SIZE, count-j), buffer); |
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| 83 | copy(send_buf+j, send_buf+j+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 84 | #pragma omp flush |
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| 85 | } |
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| 86 | } |
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| 87 | |
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| 88 | MPI_Barrier_local(comm); |
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| 89 | |
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| 90 | for(int k=1; k<num_ep; k++) |
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| 91 | { |
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| 92 | #pragma omp critical (write_to_buffer) |
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| 93 | { |
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| 94 | if(my_rank == k) |
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| 95 | { |
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| 96 | #pragma omp flush |
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| 97 | if(op == MPI_SUM) |
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| 98 | { |
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| 99 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, std::plus<int>()); |
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| 100 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 101 | } |
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| 102 | else if(op == MPI_MAX) |
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| 103 | { |
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| 104 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, max_op<int>); |
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| 105 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 106 | } |
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| 107 | else if(op == MPI_MIN) |
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| 108 | { |
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| 109 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, min_op<int>); |
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| 110 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 111 | } |
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| 112 | else |
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| 113 | { |
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| 114 | printf("Supported operation: MPI_SUM, MPI_MAX, MPI_MIN\n"); |
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| 115 | exit(1); |
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| 116 | } |
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| 117 | #pragma omp flush |
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| 118 | } |
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| 119 | } |
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| 120 | |
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| 121 | MPI_Barrier_local(comm); |
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| 122 | } |
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| 123 | } |
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| 124 | |
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| 125 | } |
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| 126 | |
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| 127 | int MPI_Scan_local_float(const void *sendbuf, void *recvbuf, int count, MPI_Op op, MPI_Comm comm) |
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| 128 | { |
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| 129 | int my_rank = comm.ep_comm_ptr->size_rank_info[1].first; |
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| 130 | int num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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| 131 | |
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| 132 | float *buffer = comm.my_buffer->buf_float; |
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| 133 | float *send_buf = static_cast<float*>(const_cast<void*>(sendbuf)); |
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| 134 | float *recv_buf = static_cast<float*>(recvbuf); |
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| 135 | |
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| 136 | for(int j=0; j<count; j+=BUFFER_SIZE) |
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| 137 | { |
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| 138 | if(my_rank == 0) |
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| 139 | { |
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| 140 | |
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| 141 | #pragma omp critical (write_to_buffer) |
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| 142 | { |
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| 143 | copy(send_buf+j, send_buf+j+min(BUFFER_SIZE, count-j), buffer); |
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| 144 | copy(send_buf+j, send_buf+j+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 145 | #pragma omp flush |
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| 146 | } |
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| 147 | } |
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| 148 | |
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| 149 | MPI_Barrier_local(comm); |
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| 150 | |
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| 151 | for(int k=1; k<num_ep; k++) |
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| 152 | { |
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| 153 | #pragma omp critical (write_to_buffer) |
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| 154 | { |
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| 155 | if(my_rank == k) |
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| 156 | { |
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| 157 | #pragma omp flush |
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| 158 | if(op == MPI_SUM) |
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| 159 | { |
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| 160 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, std::plus<float>()); |
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| 161 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 162 | } |
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| 163 | else if(op == MPI_MAX) |
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| 164 | { |
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| 165 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, max_op<float>); |
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| 166 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 167 | |
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| 168 | } |
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| 169 | else if(op == MPI_MIN) |
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| 170 | { |
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| 171 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, min_op<float>); |
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| 172 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 173 | |
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| 174 | } |
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| 175 | else |
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| 176 | { |
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| 177 | printf("Supported operation: MPI_SUM, MPI_MAX, MPI_MIN\n"); |
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| 178 | exit(1); |
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| 179 | } |
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| 180 | #pragma omp flush |
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| 181 | } |
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| 182 | } |
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| 183 | |
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| 184 | MPI_Barrier_local(comm); |
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| 185 | } |
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| 186 | } |
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| 187 | } |
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| 188 | |
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| 189 | int MPI_Scan_local_double(const void *sendbuf, void *recvbuf, int count, MPI_Op op, MPI_Comm comm) |
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| 190 | { |
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| 191 | int my_rank = comm.ep_comm_ptr->size_rank_info[1].first; |
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| 192 | int num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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| 193 | |
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| 194 | double *buffer = comm.my_buffer->buf_double; |
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| 195 | double *send_buf = static_cast<double*>(const_cast<void*>(sendbuf)); |
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| 196 | double *recv_buf = static_cast<double*>(recvbuf); |
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| 197 | |
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| 198 | for(int j=0; j<count; j+=BUFFER_SIZE) |
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| 199 | { |
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| 200 | if(my_rank == 0) |
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| 201 | { |
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| 202 | |
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| 203 | #pragma omp critical (write_to_buffer) |
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| 204 | { |
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| 205 | copy(send_buf+j, send_buf+j+min(BUFFER_SIZE, count-j), buffer); |
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| 206 | copy(send_buf+j, send_buf+j+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 207 | #pragma omp flush |
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| 208 | } |
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| 209 | } |
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| 210 | |
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| 211 | MPI_Barrier_local(comm); |
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| 212 | |
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| 213 | for(int k=1; k<num_ep; k++) |
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| 214 | { |
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| 215 | #pragma omp critical (write_to_buffer) |
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| 216 | { |
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| 217 | if(my_rank == k) |
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| 218 | { |
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| 219 | #pragma omp flush |
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| 220 | if(op == MPI_SUM) |
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| 221 | { |
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| 222 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, std::plus<double>()); |
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| 223 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 224 | } |
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| 225 | else if(op == MPI_MAX) |
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| 226 | { |
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| 227 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, max_op<double>); |
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| 228 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 229 | } |
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| 230 | else if(op == MPI_MIN) |
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| 231 | { |
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| 232 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, min_op<double>); |
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| 233 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 234 | } |
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| 235 | else |
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| 236 | { |
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| 237 | printf("Supported operation: MPI_SUM, MPI_MAX, MPI_MIN\n"); |
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| 238 | exit(1); |
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| 239 | } |
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| 240 | #pragma omp flush |
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| 241 | } |
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| 242 | } |
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| 243 | |
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| 244 | MPI_Barrier_local(comm); |
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| 245 | } |
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| 246 | } |
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| 247 | } |
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| 248 | |
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| 249 | int MPI_Scan_local_long(const void *sendbuf, void *recvbuf, int count, MPI_Op op, MPI_Comm comm) |
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| 250 | { |
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| 251 | int my_rank = comm.ep_comm_ptr->size_rank_info[1].first; |
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| 252 | int num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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| 253 | |
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| 254 | long *buffer = comm.my_buffer->buf_long; |
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| 255 | long *send_buf = static_cast<long*>(const_cast<void*>(sendbuf)); |
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| 256 | long *recv_buf = static_cast<long*>(recvbuf); |
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| 257 | |
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| 258 | for(int j=0; j<count; j+=BUFFER_SIZE) |
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| 259 | { |
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| 260 | if(my_rank == 0) |
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| 261 | { |
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| 262 | |
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| 263 | #pragma omp critical (write_to_buffer) |
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| 264 | { |
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| 265 | copy(send_buf+j, send_buf+j+min(BUFFER_SIZE, count-j), buffer); |
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| 266 | copy(send_buf+j, send_buf+j+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 267 | #pragma omp flush |
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| 268 | } |
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| 269 | } |
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| 270 | |
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| 271 | MPI_Barrier_local(comm); |
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| 272 | |
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| 273 | for(int k=1; k<num_ep; k++) |
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| 274 | { |
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| 275 | #pragma omp critical (write_to_buffer) |
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| 276 | { |
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| 277 | if(my_rank == k) |
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| 278 | { |
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| 279 | #pragma omp flush |
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| 280 | if(op == MPI_SUM) |
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| 281 | { |
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| 282 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, std::plus<long>()); |
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| 283 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 284 | } |
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| 285 | else if(op == MPI_MAX) |
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| 286 | { |
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| 287 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, max_op<long>); |
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| 288 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 289 | } |
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| 290 | else if(op == MPI_MIN) |
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| 291 | { |
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| 292 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, min_op<long>); |
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| 293 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 294 | } |
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| 295 | else |
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| 296 | { |
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| 297 | printf("Supported operation: MPI_SUM, MPI_MAX, MPI_MIN\n"); |
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| 298 | exit(1); |
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| 299 | } |
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| 300 | #pragma omp flush |
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| 301 | } |
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| 302 | } |
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| 303 | |
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| 304 | MPI_Barrier_local(comm); |
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| 305 | } |
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| 306 | } |
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| 307 | } |
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| 308 | |
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| 309 | int MPI_Scan_local_ulong(const void *sendbuf, void *recvbuf, int count, MPI_Op op, MPI_Comm comm) |
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| 310 | { |
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| 311 | int my_rank = comm.ep_comm_ptr->size_rank_info[1].first; |
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| 312 | int num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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| 313 | |
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| 314 | unsigned long *buffer = comm.my_buffer->buf_ulong; |
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| 315 | unsigned long *send_buf = static_cast<unsigned long*>(const_cast<void*>(sendbuf)); |
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| 316 | unsigned long *recv_buf = static_cast<unsigned long*>(recvbuf); |
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| 317 | |
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| 318 | for(int j=0; j<count; j+=BUFFER_SIZE) |
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| 319 | { |
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| 320 | if(my_rank == 0) |
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| 321 | { |
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| 322 | |
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| 323 | #pragma omp critical (write_to_buffer) |
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| 324 | { |
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| 325 | copy(send_buf+j, send_buf+j+min(BUFFER_SIZE, count-j), buffer); |
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| 326 | copy(send_buf+j, send_buf+j+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 327 | #pragma omp flush |
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| 328 | } |
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| 329 | } |
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| 330 | |
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| 331 | MPI_Barrier_local(comm); |
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| 332 | |
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| 333 | for(int k=1; k<num_ep; k++) |
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| 334 | { |
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| 335 | #pragma omp critical (write_to_buffer) |
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| 336 | { |
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| 337 | if(my_rank == k) |
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| 338 | { |
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| 339 | #pragma omp flush |
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| 340 | if(op == MPI_SUM) |
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| 341 | { |
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| 342 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, std::plus<unsigned long>()); |
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| 343 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 344 | } |
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| 345 | else if(op == MPI_MAX) |
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| 346 | { |
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| 347 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, max_op<unsigned long>); |
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| 348 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 349 | } |
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| 350 | else if(op == MPI_MIN) |
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| 351 | { |
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| 352 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, min_op<unsigned long>); |
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| 353 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 354 | } |
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| 355 | else |
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| 356 | { |
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| 357 | printf("Supported operation: MPI_SUM, MPI_MAX, MPI_MIN\n"); |
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| 358 | exit(1); |
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| 359 | } |
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| 360 | #pragma omp flush |
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| 361 | } |
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| 362 | } |
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| 363 | |
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| 364 | MPI_Barrier_local(comm); |
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| 365 | } |
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| 366 | } |
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| 367 | } |
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| 368 | |
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| 369 | int MPI_Scan_local_char(const void *sendbuf, void *recvbuf, int count, MPI_Op op, MPI_Comm comm) |
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| 370 | { |
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| 371 | int my_rank = comm.ep_comm_ptr->size_rank_info[1].first; |
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| 372 | int num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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| 373 | |
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| 374 | char *buffer = comm.my_buffer->buf_char; |
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| 375 | char *send_buf = static_cast<char*>(const_cast<void*>(sendbuf)); |
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| 376 | char *recv_buf = static_cast<char*>(recvbuf); |
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| 377 | |
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| 378 | for(int j=0; j<count; j+=BUFFER_SIZE) |
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| 379 | { |
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| 380 | if(my_rank == 0) |
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| 381 | { |
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| 382 | |
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| 383 | #pragma omp critical (write_to_buffer) |
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| 384 | { |
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| 385 | copy(send_buf+j, send_buf+j+min(BUFFER_SIZE, count-j), buffer); |
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| 386 | copy(send_buf+j, send_buf+j+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 387 | #pragma omp flush |
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| 388 | } |
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| 389 | } |
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| 390 | |
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| 391 | MPI_Barrier_local(comm); |
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| 392 | |
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| 393 | for(int k=1; k<num_ep; k++) |
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| 394 | { |
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| 395 | #pragma omp critical (write_to_buffer) |
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| 396 | { |
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| 397 | if(my_rank == k) |
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| 398 | { |
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| 399 | #pragma omp flush |
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| 400 | if(op == MPI_SUM) |
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| 401 | { |
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| 402 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, std::plus<char>()); |
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| 403 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 404 | } |
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| 405 | else if(op == MPI_MAX) |
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| 406 | { |
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| 407 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, max_op<char>); |
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| 408 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 409 | } |
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| 410 | else if(op == MPI_MIN) |
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| 411 | { |
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| 412 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, min_op<char>); |
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| 413 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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| 414 | } |
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| 415 | else |
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| 416 | { |
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| 417 | printf("Supported operation: MPI_SUM, MPI_MAX, MPI_MIN\n"); |
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| 418 | exit(1); |
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| 419 | } |
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| 420 | #pragma omp flush |
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| 421 | } |
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| 422 | } |
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| 423 | |
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| 424 | MPI_Barrier_local(comm); |
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| 425 | } |
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| 426 | } |
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| 427 | } |
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| 428 | |
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| 429 | |
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| 430 | int MPI_Scan(const void *sendbuf, void *recvbuf, int count, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm) |
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| 431 | { |
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| 432 | if(!comm.is_ep) |
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| 433 | { |
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| 434 | #ifdef _serialized |
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| 435 | #pragma omp critical (_mpi_call) |
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| 436 | #endif // _serialized |
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| 437 | ::MPI_Scan(sendbuf, recvbuf, count, static_cast< ::MPI_Datatype>(datatype), |
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| 438 | static_cast< ::MPI_Op>(op), static_cast< ::MPI_Comm>(comm.mpi_comm)); |
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| 439 | return 0; |
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| 440 | } |
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| 441 | |
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| 442 | if(!comm.mpi_comm) return 0; |
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| 443 | |
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| 444 | int ep_rank, ep_rank_loc, mpi_rank; |
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| 445 | int ep_size, num_ep, mpi_size; |
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| 446 | |
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| 447 | |
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| 448 | ep_rank = comm.ep_comm_ptr->size_rank_info[0].first; |
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| 449 | ep_rank_loc = comm.ep_comm_ptr->size_rank_info[1].first; |
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| 450 | mpi_rank = comm.ep_comm_ptr->size_rank_info[2].first; |
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| 451 | ep_size = comm.ep_comm_ptr->size_rank_info[0].second; |
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| 452 | num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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| 453 | mpi_size = comm.ep_comm_ptr->size_rank_info[2].second; |
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| 454 | |
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| 455 | |
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| 456 | ::MPI_Aint datasize, lb; |
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| 457 | #ifdef _serialized |
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| 458 | #pragma omp critical (_mpi_call) |
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| 459 | #endif // _serialized |
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| 460 | ::MPI_Type_get_extent(static_cast< ::MPI_Datatype>(datatype), &lb, &datasize); |
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| 461 | |
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| 462 | void* local_scan_recvbuf; |
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| 463 | local_scan_recvbuf = new void*[datasize * count]; |
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| 464 | |
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| 465 | |
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| 466 | // local scan |
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| 467 | MPI_Scan_local(sendbuf, recvbuf, count, datatype, op, comm); |
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| 468 | |
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| 469 | // MPI_scan |
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| 470 | void* local_sum; |
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| 471 | void* mpi_scan_recvbuf; |
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| 472 | |
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| 473 | |
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| 474 | mpi_scan_recvbuf = new void*[datasize*count]; |
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| 475 | |
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| 476 | if(ep_rank_loc == 0) |
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| 477 | { |
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| 478 | local_sum = new void*[datasize*count]; |
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| 479 | } |
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| 480 | |
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| 481 | |
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| 482 | MPI_Reduce_local(sendbuf, local_sum, count, datatype, op, comm); |
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| 483 | |
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| 484 | if(ep_rank_loc == 0) |
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| 485 | { |
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| 486 | #ifdef _serialized |
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| 487 | #pragma omp critical (_mpi_call) |
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| 488 | #endif // _serialized |
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| 489 | ::MPI_Exscan(local_sum, mpi_scan_recvbuf, count, static_cast< ::MPI_Datatype>(datatype), static_cast< ::MPI_Op>(op), static_cast< ::MPI_Comm>(comm.mpi_comm)); |
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| 490 | } |
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| 491 | |
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| 492 | |
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| 493 | if(mpi_rank > 0) |
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| 494 | { |
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| 495 | MPI_Bcast_local(mpi_scan_recvbuf, count, datatype, comm); |
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| 496 | } |
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| 497 | |
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| 498 | |
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| 499 | if(datatype == MPI_DOUBLE) |
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| 500 | { |
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| 501 | double* sum_buf = static_cast<double*>(mpi_scan_recvbuf); |
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| 502 | double* recv_buf = static_cast<double*>(recvbuf); |
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| 503 | |
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| 504 | if(mpi_rank != 0) |
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| 505 | { |
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| 506 | if(op == MPI_SUM) |
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| 507 | { |
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| 508 | for(int i=0; i<count; i++) |
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| 509 | { |
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| 510 | recv_buf[i] += sum_buf[i]; |
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| 511 | } |
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| 512 | } |
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| 513 | else if (op == MPI_MAX) |
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| 514 | { |
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| 515 | for(int i=0; i<count; i++) |
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| 516 | { |
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| 517 | recv_buf[i] = max(recv_buf[i], sum_buf[i]); |
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| 518 | } |
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| 519 | } |
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| 520 | else if(op == MPI_MIN) |
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| 521 | { |
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| 522 | for(int i=0; i<count; i++) |
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| 523 | { |
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| 524 | recv_buf[i] = min(recv_buf[i], sum_buf[i]); |
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| 525 | } |
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| 526 | } |
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| 527 | else |
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| 528 | { |
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| 529 | printf("Support operator for MPI_Scan is MPI_SUM, MPI_MAX, and MPI_MIN\n"); |
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| 530 | exit(1); |
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| 531 | } |
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| 532 | } |
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| 533 | |
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| 534 | delete[] static_cast<double*>(mpi_scan_recvbuf); |
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| 535 | if(ep_rank_loc == 0) |
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| 536 | { |
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| 537 | delete[] static_cast<double*>(local_sum); |
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| 538 | } |
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| 539 | } |
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| 540 | |
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| 541 | else if(datatype == MPI_FLOAT) |
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| 542 | { |
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| 543 | float* sum_buf = static_cast<float*>(mpi_scan_recvbuf); |
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| 544 | float* recv_buf = static_cast<float*>(recvbuf); |
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| 545 | |
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| 546 | if(mpi_rank != 0) |
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| 547 | { |
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| 548 | if(op == MPI_SUM) |
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| 549 | { |
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| 550 | for(int i=0; i<count; i++) |
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| 551 | { |
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| 552 | recv_buf[i] += sum_buf[i]; |
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| 553 | } |
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| 554 | } |
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| 555 | else if (op == MPI_MAX) |
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| 556 | { |
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| 557 | for(int i=0; i<count; i++) |
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| 558 | { |
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| 559 | recv_buf[i] = max(recv_buf[i], sum_buf[i]); |
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| 560 | } |
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| 561 | } |
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| 562 | else if(op == MPI_MIN) |
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| 563 | { |
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| 564 | for(int i=0; i<count; i++) |
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| 565 | { |
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| 566 | recv_buf[i] = min(recv_buf[i], sum_buf[i]); |
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| 567 | } |
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| 568 | } |
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| 569 | else |
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| 570 | { |
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| 571 | printf("Support operator for MPI_Scan is MPI_SUM, MPI_MAX, and MPI_MIN\n"); |
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| 572 | exit(1); |
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| 573 | } |
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| 574 | } |
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| 575 | |
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| 576 | delete[] static_cast<float*>(mpi_scan_recvbuf); |
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| 577 | if(ep_rank_loc == 0) |
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| 578 | { |
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| 579 | delete[] static_cast<float*>(local_sum); |
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| 580 | } |
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| 581 | } |
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| 582 | |
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| 583 | else if(datatype == MPI_INT) |
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| 584 | { |
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| 585 | int* sum_buf = static_cast<int*>(mpi_scan_recvbuf); |
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| 586 | int* recv_buf = static_cast<int*>(recvbuf); |
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| 587 | |
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| 588 | if(mpi_rank != 0) |
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| 589 | { |
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| 590 | if(op == MPI_SUM) |
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| 591 | { |
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| 592 | for(int i=0; i<count; i++) |
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| 593 | { |
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| 594 | recv_buf[i] += sum_buf[i]; |
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| 595 | } |
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| 596 | } |
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| 597 | else if (op == MPI_MAX) |
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| 598 | { |
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| 599 | for(int i=0; i<count; i++) |
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| 600 | { |
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| 601 | recv_buf[i] = max(recv_buf[i], sum_buf[i]); |
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| 602 | } |
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| 603 | } |
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| 604 | else if(op == MPI_MIN) |
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| 605 | { |
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| 606 | for(int i=0; i<count; i++) |
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| 607 | { |
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| 608 | recv_buf[i] = min(recv_buf[i], sum_buf[i]); |
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| 609 | } |
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| 610 | } |
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| 611 | else |
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| 612 | { |
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| 613 | printf("Support operator for MPI_Scan is MPI_SUM, MPI_MAX, and MPI_MIN\n"); |
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| 614 | exit(1); |
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| 615 | } |
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| 616 | } |
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| 617 | |
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| 618 | delete[] static_cast<int*>(mpi_scan_recvbuf); |
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| 619 | if(ep_rank_loc == 0) |
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| 620 | { |
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| 621 | delete[] static_cast<int*>(local_sum); |
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| 622 | } |
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| 623 | } |
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| 624 | |
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| 625 | else if(datatype == MPI_LONG) |
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| 626 | { |
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| 627 | long* sum_buf = static_cast<long*>(mpi_scan_recvbuf); |
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| 628 | long* recv_buf = static_cast<long*>(recvbuf); |
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| 629 | |
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| 630 | if(mpi_rank != 0) |
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| 631 | { |
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| 632 | if(op == MPI_SUM) |
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| 633 | { |
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| 634 | for(int i=0; i<count; i++) |
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| 635 | { |
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| 636 | recv_buf[i] += sum_buf[i]; |
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| 637 | } |
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| 638 | } |
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| 639 | else if (op == MPI_MAX) |
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| 640 | { |
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| 641 | for(int i=0; i<count; i++) |
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| 642 | { |
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| 643 | recv_buf[i] = max(recv_buf[i], sum_buf[i]); |
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| 644 | } |
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| 645 | } |
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| 646 | else if(op == MPI_MIN) |
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| 647 | { |
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| 648 | for(int i=0; i<count; i++) |
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| 649 | { |
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| 650 | recv_buf[i] = min(recv_buf[i], sum_buf[i]); |
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| 651 | } |
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| 652 | } |
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| 653 | else |
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| 654 | { |
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| 655 | printf("Support operator for MPI_Scan is MPI_SUM, MPI_MAX, and MPI_MIN\n"); |
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| 656 | exit(1); |
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| 657 | } |
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| 658 | } |
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| 659 | |
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| 660 | delete[] static_cast<long*>(mpi_scan_recvbuf); |
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| 661 | if(ep_rank_loc == 0) |
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| 662 | { |
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| 663 | delete[] static_cast<long*>(local_sum); |
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| 664 | } |
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| 665 | } |
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| 666 | |
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| 667 | else if(datatype == MPI_UNSIGNED_LONG) |
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| 668 | { |
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| 669 | unsigned long* sum_buf = static_cast<unsigned long*>(mpi_scan_recvbuf); |
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| 670 | unsigned long* recv_buf = static_cast<unsigned long*>(recvbuf); |
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| 671 | |
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| 672 | if(mpi_rank != 0) |
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| 673 | { |
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| 674 | if(op == MPI_SUM) |
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| 675 | { |
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| 676 | for(int i=0; i<count; i++) |
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| 677 | { |
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| 678 | recv_buf[i] += sum_buf[i]; |
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| 679 | } |
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| 680 | } |
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| 681 | else if (op == MPI_MAX) |
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| 682 | { |
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| 683 | for(int i=0; i<count; i++) |
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| 684 | { |
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| 685 | recv_buf[i] = max(recv_buf[i], sum_buf[i]); |
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| 686 | } |
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| 687 | } |
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| 688 | else if(op == MPI_MIN) |
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| 689 | { |
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| 690 | for(int i=0; i<count; i++) |
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| 691 | { |
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| 692 | recv_buf[i] = min(recv_buf[i], sum_buf[i]); |
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| 693 | } |
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| 694 | } |
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| 695 | else |
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| 696 | { |
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| 697 | printf("Support operator for MPI_Scan is MPI_SUM, MPI_MAX, and MPI_MIN\n"); |
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| 698 | exit(1); |
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| 699 | } |
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| 700 | } |
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| 701 | |
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| 702 | delete[] static_cast<unsigned long*>(mpi_scan_recvbuf); |
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| 703 | if(ep_rank_loc == 0) |
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| 704 | { |
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| 705 | delete[] static_cast<unsigned long*>(local_sum); |
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| 706 | } |
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| 707 | } |
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| 708 | |
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| 709 | else if(datatype == MPI_CHAR) |
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| 710 | { |
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| 711 | char* sum_buf = static_cast<char*>(mpi_scan_recvbuf); |
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| 712 | char* recv_buf = static_cast<char*>(recvbuf); |
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| 713 | |
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| 714 | if(mpi_rank != 0) |
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| 715 | { |
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| 716 | if(op == MPI_SUM) |
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| 717 | { |
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| 718 | for(int i=0; i<count; i++) |
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| 719 | { |
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| 720 | recv_buf[i] += sum_buf[i]; |
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| 721 | } |
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| 722 | } |
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| 723 | else if (op == MPI_MAX) |
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| 724 | { |
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| 725 | for(int i=0; i<count; i++) |
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| 726 | { |
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| 727 | recv_buf[i] = max(recv_buf[i], sum_buf[i]); |
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| 728 | } |
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| 729 | } |
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| 730 | else if(op == MPI_MIN) |
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| 731 | { |
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| 732 | for(int i=0; i<count; i++) |
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| 733 | { |
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| 734 | recv_buf[i] = min(recv_buf[i], sum_buf[i]); |
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| 735 | } |
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| 736 | } |
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| 737 | else |
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| 738 | { |
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| 739 | printf("Support operator for MPI_Scan is MPI_SUM, MPI_MAX, and MPI_MIN\n"); |
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| 740 | exit(1); |
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| 741 | } |
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| 742 | } |
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| 743 | |
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| 744 | delete[] static_cast<char*>(mpi_scan_recvbuf); |
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| 745 | if(ep_rank_loc == 0) |
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| 746 | { |
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| 747 | delete[] static_cast<char*>(local_sum); |
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| 748 | } |
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| 749 | } |
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| 750 | |
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| 751 | |
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| 752 | } |
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| 753 | |
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| 754 | } |
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