1 | /*! |
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2 | \file ep_reduce.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_Reduce, MPI_Allreduce |
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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 | |
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15 | namespace ep_lib { |
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16 | |
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17 | template<typename T> |
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18 | T max_op(T a, T b) |
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19 | { |
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20 | return max(a,b); |
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21 | } |
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22 | |
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23 | template<typename T> |
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24 | T min_op(T a, T b) |
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25 | { |
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26 | return min(a,b); |
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27 | } |
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28 | |
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29 | |
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30 | int MPI_Reduce_local(const void *sendbuf, void *recvbuf, int count, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm) |
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31 | { |
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32 | if(datatype == MPI_INT) |
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33 | { |
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34 | Debug("datatype is INT\n"); |
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35 | return MPI_Reduce_local_int(sendbuf, recvbuf, count, op, comm); |
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36 | } |
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37 | else if(datatype == MPI_FLOAT) |
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38 | { |
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39 | Debug("datatype is FLOAT\n"); |
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40 | return MPI_Reduce_local_float(sendbuf, recvbuf, count, op, comm); |
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41 | } |
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42 | else if(datatype == MPI_DOUBLE) |
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43 | { |
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44 | Debug("datatype is DOUBLE\n"); |
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45 | return MPI_Reduce_local_double(sendbuf, recvbuf, count, op, comm); |
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46 | } |
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47 | else if(datatype == MPI_LONG) |
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48 | { |
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49 | Debug("datatype is DOUBLE\n"); |
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50 | return MPI_Reduce_local_long(sendbuf, recvbuf, count, op, comm); |
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51 | } |
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52 | else if(datatype == MPI_UNSIGNED_LONG) |
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53 | { |
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54 | Debug("datatype is DOUBLE\n"); |
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55 | return MPI_Reduce_local_ulong(sendbuf, recvbuf, count, op, comm); |
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56 | } |
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57 | else if(datatype == MPI_CHAR) |
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58 | { |
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59 | Debug("datatype is DOUBLE\n"); |
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60 | return MPI_Reduce_local_char(sendbuf, recvbuf, count, op, comm); |
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61 | } |
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62 | else |
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63 | { |
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64 | printf("MPI_Reduce Datatype not supported!\n"); |
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65 | exit(0); |
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66 | } |
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67 | } |
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68 | |
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69 | |
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70 | int MPI_Reduce_local_int(const void *sendbuf, void *recvbuf, int count, MPI_Op op, MPI_Comm comm) |
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71 | { |
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72 | int my_rank = comm.ep_comm_ptr->size_rank_info[1].first; |
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73 | int num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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74 | |
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75 | int *buffer = comm.my_buffer->buf_int; |
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76 | int *send_buf = static_cast<int*>(const_cast<void*>(sendbuf)); |
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77 | int *recv_buf = static_cast<int*>(const_cast<void*>(recvbuf)); |
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78 | |
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79 | for(int j=0; j<count; j+=BUFFER_SIZE) |
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80 | { |
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81 | if( 0 == my_rank ) |
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82 | { |
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83 | #pragma omp critical (write_to_buffer) |
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84 | copy(send_buf+j, send_buf+j + min(BUFFER_SIZE, count-j), buffer); |
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85 | #pragma omp flush |
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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 | if(my_rank !=0 ) |
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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 | #pragma omp flush |
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95 | if(op == MPI_SUM) |
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96 | { |
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97 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, std::plus<int>()); |
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98 | } |
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99 | |
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100 | else if (op == MPI_MAX) |
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101 | { |
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102 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, max_op<int>); |
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103 | } |
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104 | |
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105 | else if (op == MPI_MIN) |
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106 | { |
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107 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, min_op<int>); |
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108 | } |
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109 | |
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110 | else |
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111 | { |
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112 | printf("Supported operation: MPI_SUM, MPI_MAX, MPI_MIN\n"); |
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113 | exit(1); |
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114 | } |
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115 | #pragma omp flush |
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116 | } |
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117 | } |
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118 | |
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119 | MPI_Barrier_local(comm); |
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120 | |
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121 | if(my_rank == 0) |
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122 | { |
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123 | #pragma omp flush |
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124 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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125 | } |
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126 | MPI_Barrier_local(comm); |
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127 | } |
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128 | } |
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129 | |
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130 | |
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131 | int MPI_Reduce_local_float(const void *sendbuf, void *recvbuf, int count, MPI_Op op, MPI_Comm comm) |
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132 | { |
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133 | int my_rank = comm.ep_comm_ptr->size_rank_info[1].first; |
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134 | int num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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135 | |
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136 | float *buffer = comm.my_buffer->buf_float; |
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137 | float *send_buf = static_cast<float*>(const_cast<void*>(sendbuf)); |
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138 | float *recv_buf = static_cast<float*>(const_cast<void*>(recvbuf)); |
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139 | |
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140 | for(int j=0; j<count; j+=BUFFER_SIZE) |
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141 | { |
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142 | if( 0 == my_rank ) |
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143 | { |
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144 | #pragma omp critical (write_to_buffer) |
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145 | copy(send_buf+j, send_buf+j + min(BUFFER_SIZE, count-j), buffer); |
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146 | #pragma omp flush |
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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 | if(my_rank !=0 ) |
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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 | #pragma omp flush |
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156 | |
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157 | if(op == MPI_SUM) |
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158 | { |
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159 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, std::plus<float>()); |
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160 | } |
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161 | |
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162 | else if (op == MPI_MAX) |
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163 | { |
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164 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, max_op<float>); |
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165 | } |
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166 | |
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167 | else if (op == MPI_MIN) |
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168 | { |
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169 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, min_op<float>); |
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170 | } |
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171 | |
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172 | else |
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173 | { |
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174 | printf("Supported operation: MPI_SUM, MPI_MAX, MPI_MIN\n"); |
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175 | exit(1); |
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176 | } |
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177 | #pragma omp flush |
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178 | } |
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179 | } |
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180 | |
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181 | MPI_Barrier_local(comm); |
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182 | |
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183 | if(my_rank == 0) |
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184 | { |
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185 | #pragma omp flush |
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186 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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187 | } |
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188 | MPI_Barrier_local(comm); |
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189 | } |
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190 | } |
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191 | |
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192 | int MPI_Reduce_local_double(const void *sendbuf, void *recvbuf, int count, MPI_Op op, MPI_Comm comm) |
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193 | { |
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194 | int my_rank = comm.ep_comm_ptr->size_rank_info[1].first; |
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195 | int num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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196 | |
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197 | double *buffer = comm.my_buffer->buf_double; |
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198 | double *send_buf = static_cast<double*>(const_cast<void*>(sendbuf)); |
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199 | double *recv_buf = static_cast<double*>(const_cast<void*>(recvbuf)); |
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200 | |
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201 | for(int j=0; j<count; j+=BUFFER_SIZE) |
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202 | { |
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203 | if( 0 == my_rank ) |
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204 | { |
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205 | #pragma omp critical (write_to_buffer) |
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206 | copy(send_buf+j, send_buf+j + min(BUFFER_SIZE, count-j), buffer); |
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207 | #pragma omp flush |
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208 | } |
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209 | |
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210 | MPI_Barrier_local(comm); |
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211 | |
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212 | if(my_rank !=0 ) |
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213 | { |
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214 | #pragma omp critical (write_to_buffer) |
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215 | { |
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216 | #pragma omp flush |
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217 | |
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218 | |
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219 | if(op == MPI_SUM) |
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220 | { |
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221 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, std::plus<double>()); |
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222 | } |
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223 | |
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224 | else if (op == MPI_MAX) |
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225 | { |
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226 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, max_op<double>); |
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227 | } |
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228 | |
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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 | } |
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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 | if(my_rank == 0) |
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247 | { |
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248 | #pragma omp flush |
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249 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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250 | } |
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251 | MPI_Barrier_local(comm); |
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252 | } |
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253 | } |
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254 | |
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255 | int MPI_Reduce_local_long(const void *sendbuf, void *recvbuf, int count, MPI_Op op, MPI_Comm comm) |
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256 | { |
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257 | int my_rank = comm.ep_comm_ptr->size_rank_info[1].first; |
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258 | int num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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259 | |
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260 | long *buffer = comm.my_buffer->buf_long; |
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261 | long *send_buf = static_cast<long*>(const_cast<void*>(sendbuf)); |
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262 | long *recv_buf = static_cast<long*>(const_cast<void*>(recvbuf)); |
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263 | |
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264 | for(int j=0; j<count; j+=BUFFER_SIZE) |
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265 | { |
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266 | if( 0 == my_rank ) |
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267 | { |
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268 | #pragma omp critical (write_to_buffer) |
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269 | copy(send_buf+j, send_buf+j + min(BUFFER_SIZE, count-j), buffer); |
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270 | #pragma omp flush |
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271 | } |
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272 | |
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273 | MPI_Barrier_local(comm); |
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274 | |
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275 | if(my_rank !=0 ) |
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276 | { |
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277 | #pragma omp critical (write_to_buffer) |
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278 | { |
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279 | #pragma omp flush |
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280 | |
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281 | |
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282 | if(op == MPI_SUM) |
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283 | { |
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284 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, std::plus<long>()); |
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285 | } |
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286 | |
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287 | else if (op == MPI_MAX) |
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288 | { |
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289 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, max_op<long>); |
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290 | } |
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291 | |
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292 | |
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293 | else if (op == MPI_MIN) |
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294 | { |
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295 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, min_op<long>); |
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296 | } |
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297 | |
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298 | else |
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299 | { |
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300 | printf("Supported operation: MPI_SUM, MPI_MAX, MPI_MIN\n"); |
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301 | exit(1); |
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302 | } |
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303 | #pragma omp flush |
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304 | } |
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305 | } |
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306 | |
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307 | MPI_Barrier_local(comm); |
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308 | |
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309 | if(my_rank == 0) |
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310 | { |
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311 | #pragma omp flush |
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312 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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313 | } |
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314 | MPI_Barrier_local(comm); |
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315 | } |
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316 | } |
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317 | |
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318 | int MPI_Reduce_local_ulong(const void *sendbuf, void *recvbuf, int count, MPI_Op op, MPI_Comm comm) |
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319 | { |
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320 | int my_rank = comm.ep_comm_ptr->size_rank_info[1].first; |
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321 | int num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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322 | |
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323 | unsigned long *buffer = comm.my_buffer->buf_ulong; |
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324 | unsigned long *send_buf = static_cast<unsigned long*>(const_cast<void*>(sendbuf)); |
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325 | unsigned long *recv_buf = static_cast<unsigned long*>(const_cast<void*>(recvbuf)); |
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326 | |
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327 | for(int j=0; j<count; j+=BUFFER_SIZE) |
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328 | { |
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329 | if( 0 == my_rank ) |
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330 | { |
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331 | #pragma omp critical (write_to_buffer) |
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332 | copy(send_buf+j, send_buf+j + min(BUFFER_SIZE, count-j), buffer); |
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333 | #pragma omp flush |
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334 | } |
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335 | |
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336 | MPI_Barrier_local(comm); |
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337 | |
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338 | if(my_rank !=0 ) |
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339 | { |
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340 | #pragma omp critical (write_to_buffer) |
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341 | { |
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342 | #pragma omp flush |
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343 | |
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344 | |
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345 | if(op == MPI_SUM) |
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346 | { |
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347 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, std::plus<unsigned long>()); |
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348 | } |
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349 | |
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350 | else if (op == MPI_MAX) |
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351 | { |
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352 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, max_op<unsigned long>); |
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353 | } |
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354 | |
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355 | |
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356 | else if (op == MPI_MIN) |
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357 | { |
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358 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, min_op<unsigned long>); |
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359 | } |
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360 | |
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361 | else |
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362 | { |
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363 | printf("Supported operation: MPI_SUM, MPI_MAX, MPI_MIN\n"); |
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364 | exit(1); |
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365 | } |
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366 | #pragma omp flush |
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367 | } |
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368 | } |
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369 | |
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370 | MPI_Barrier_local(comm); |
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371 | |
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372 | if(my_rank == 0) |
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373 | { |
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374 | #pragma omp flush |
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375 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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376 | } |
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377 | MPI_Barrier_local(comm); |
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378 | } |
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379 | } |
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380 | |
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381 | int MPI_Reduce_local_char(const void *sendbuf, void *recvbuf, int count, MPI_Op op, MPI_Comm comm) |
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382 | { |
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383 | int my_rank = comm.ep_comm_ptr->size_rank_info[1].first; |
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384 | int num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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385 | |
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386 | char *buffer = comm.my_buffer->buf_char; |
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387 | char *send_buf = static_cast<char*>(const_cast<void*>(sendbuf)); |
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388 | char *recv_buf = static_cast<char*>(const_cast<void*>(recvbuf)); |
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389 | |
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390 | for(int j=0; j<count; j+=BUFFER_SIZE) |
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391 | { |
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392 | if( 0 == my_rank ) |
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393 | { |
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394 | #pragma omp critical (write_to_buffer) |
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395 | copy(send_buf+j, send_buf+j + min(BUFFER_SIZE, count-j), buffer); |
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396 | #pragma omp flush |
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397 | } |
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398 | |
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399 | MPI_Barrier_local(comm); |
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400 | |
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401 | if(my_rank !=0 ) |
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402 | { |
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403 | #pragma omp critical (write_to_buffer) |
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404 | { |
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405 | #pragma omp flush |
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406 | |
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407 | |
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408 | if(op == MPI_SUM) |
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409 | { |
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410 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, std::plus<char>()); |
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411 | } |
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412 | |
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413 | else if (op == MPI_MAX) |
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414 | { |
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415 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, max_op<char>); |
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416 | } |
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417 | |
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418 | |
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419 | else if (op == MPI_MIN) |
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420 | { |
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421 | transform(buffer, buffer+min(BUFFER_SIZE, count-j), send_buf+j, buffer, min_op<char>); |
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422 | } |
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423 | |
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424 | else |
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425 | { |
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426 | printf("Supported operation: MPI_SUM, MPI_MAX, MPI_MIN\n"); |
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427 | exit(1); |
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428 | } |
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429 | #pragma omp flush |
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430 | } |
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431 | } |
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432 | |
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433 | MPI_Barrier_local(comm); |
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434 | |
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435 | if(my_rank == 0) |
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436 | { |
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437 | #pragma omp flush |
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438 | copy(buffer, buffer+min(BUFFER_SIZE, count-j), recv_buf+j); |
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439 | } |
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440 | MPI_Barrier_local(comm); |
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441 | } |
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442 | } |
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443 | |
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444 | |
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445 | int MPI_Reduce(const void *sendbuf, void *recvbuf, int count, MPI_Datatype datatype, MPI_Op op, int root, MPI_Comm comm) |
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446 | { |
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447 | if(!comm.is_ep && comm.mpi_comm) |
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448 | { |
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449 | #ifdef _serialized |
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450 | #pragma omp critical (_mpi_call) |
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451 | #endif // _serialized |
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452 | ::MPI_Reduce(sendbuf, recvbuf, count, static_cast< ::MPI_Datatype>(datatype), static_cast< ::MPI_Op>(op), root, |
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453 | static_cast< ::MPI_Comm>(comm.mpi_comm)); |
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454 | return 0; |
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455 | } |
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456 | |
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457 | |
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458 | if(!comm.mpi_comm) return 0; |
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459 | |
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460 | int root_mpi_rank = comm.rank_map->at(root).second; |
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461 | int root_ep_loc = comm.rank_map->at(root).first; |
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462 | |
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463 | int ep_rank, ep_rank_loc, mpi_rank; |
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464 | int ep_size, num_ep, mpi_size; |
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465 | |
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466 | ep_rank = comm.ep_comm_ptr->size_rank_info[0].first; |
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467 | ep_rank_loc = comm.ep_comm_ptr->size_rank_info[1].first; |
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468 | mpi_rank = comm.ep_comm_ptr->size_rank_info[2].first; |
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469 | ep_size = comm.ep_comm_ptr->size_rank_info[0].second; |
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470 | num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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471 | mpi_size = comm.ep_comm_ptr->size_rank_info[2].second; |
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472 | |
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473 | |
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474 | ::MPI_Aint recvsize, lb; |
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475 | #ifdef _serialized |
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476 | #pragma omp critical (_mpi_call) |
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477 | #endif // _serialized |
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478 | ::MPI_Type_get_extent(static_cast< ::MPI_Datatype>(datatype), &lb, &recvsize); |
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479 | |
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480 | void *local_recvbuf; |
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481 | if(ep_rank_loc==0) |
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482 | { |
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483 | local_recvbuf = new void*[recvsize*count]; |
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484 | } |
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485 | |
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486 | MPI_Reduce_local(sendbuf, local_recvbuf, count, datatype, op, comm); |
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487 | |
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488 | |
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489 | if(ep_rank_loc==0) |
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490 | { |
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491 | #ifdef _serialized |
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492 | #pragma omp critical (_mpi_call) |
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493 | #endif // _serialized |
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494 | ::MPI_Reduce(local_recvbuf, recvbuf, count, static_cast< ::MPI_Datatype>(datatype), static_cast< ::MPI_Op>(op), root_mpi_rank, static_cast< ::MPI_Comm>(comm.mpi_comm)); |
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495 | } |
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496 | |
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497 | if(root_ep_loc != 0 && mpi_rank == root_mpi_rank) // root is not master, master send to root and root receive from master |
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498 | { |
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499 | innode_memcpy(0, recvbuf, root_ep_loc, recvbuf, count, datatype, comm); |
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500 | } |
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501 | |
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502 | if(ep_rank_loc==0) |
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503 | { |
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504 | if(datatype == MPI_INT) delete[] static_cast<int*>(local_recvbuf); |
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505 | else if(datatype == MPI_FLOAT) delete[] static_cast<float*>(local_recvbuf); |
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506 | else if(datatype == MPI_DOUBLE) delete[] static_cast<double*>(local_recvbuf); |
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507 | else if(datatype == MPI_LONG) delete[] static_cast<long*>(local_recvbuf); |
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508 | else if(datatype == MPI_UNSIGNED_LONG) delete[] static_cast<unsigned long*>(local_recvbuf); |
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509 | else delete[] static_cast<char*>(local_recvbuf); |
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510 | } |
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511 | |
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512 | Message_Check(comm); |
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513 | |
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514 | return 0; |
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515 | } |
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516 | |
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517 | |
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518 | |
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519 | |
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520 | int MPI_Allreduce(const void *sendbuf, void *recvbuf, int count, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm) |
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521 | { |
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522 | if(!comm.is_ep && comm.mpi_comm) |
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523 | { |
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524 | #ifdef _serialized |
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525 | #pragma omp critical (_mpi_call) |
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526 | #endif // _serialized |
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527 | ::MPI_Allreduce(sendbuf, recvbuf, count, static_cast< ::MPI_Datatype>(datatype), static_cast< ::MPI_Op>(op), |
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528 | static_cast< ::MPI_Comm>(comm.mpi_comm)); |
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529 | return 0; |
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530 | } |
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531 | |
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532 | if(!comm.mpi_comm) return 0; |
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533 | |
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534 | |
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535 | int ep_rank, ep_rank_loc, mpi_rank; |
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536 | int ep_size, num_ep, mpi_size; |
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537 | |
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538 | ep_rank = comm.ep_comm_ptr->size_rank_info[0].first; |
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539 | ep_rank_loc = comm.ep_comm_ptr->size_rank_info[1].first; |
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540 | mpi_rank = comm.ep_comm_ptr->size_rank_info[2].first; |
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541 | ep_size = comm.ep_comm_ptr->size_rank_info[0].second; |
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542 | num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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543 | mpi_size = comm.ep_comm_ptr->size_rank_info[2].second; |
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544 | |
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545 | |
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546 | ::MPI_Aint recvsize, lb; |
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547 | #ifdef _serialized |
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548 | #pragma omp critical (_mpi_call) |
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549 | #endif // _serialized |
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550 | ::MPI_Type_get_extent(static_cast< ::MPI_Datatype>(datatype), &lb, &recvsize); |
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551 | |
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552 | void *local_recvbuf; |
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553 | if(ep_rank_loc==0) |
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554 | { |
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555 | local_recvbuf = new void*[recvsize*count]; |
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556 | } |
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557 | |
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558 | MPI_Reduce_local(sendbuf, local_recvbuf, count, datatype, op, comm); |
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559 | |
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560 | |
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561 | if(ep_rank_loc==0) |
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562 | { |
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563 | #ifdef _serialized |
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564 | #pragma omp critical (_mpi_call) |
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565 | #endif // _serialized |
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566 | ::MPI_Allreduce(local_recvbuf, recvbuf, count, static_cast< ::MPI_Datatype>(datatype), static_cast< ::MPI_Op>(op), static_cast< ::MPI_Comm>(comm.mpi_comm)); |
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567 | } |
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568 | |
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569 | MPI_Bcast_local(recvbuf, count, datatype, comm); |
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570 | |
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571 | if(ep_rank_loc==0) |
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572 | { |
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573 | if(datatype == MPI_INT) delete[] static_cast<int*>(local_recvbuf); |
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574 | else if(datatype == MPI_FLOAT) delete[] static_cast<float*>(local_recvbuf); |
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575 | else if(datatype == MPI_DOUBLE) delete[] static_cast<double*>(local_recvbuf); |
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576 | else if(datatype == MPI_LONG) delete[] static_cast<long*>(local_recvbuf); |
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577 | else if(datatype == MPI_UNSIGNED_LONG) delete[] static_cast<unsigned long*>(local_recvbuf); |
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578 | else delete[] static_cast<char*>(local_recvbuf); |
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579 | } |
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580 | |
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581 | Message_Check(comm); |
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582 | |
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583 | return 0; |
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584 | } |
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585 | |
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586 | |
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587 | int MPI_Reduce_scatter(const void *sendbuf, void *recvbuf, const int recvcounts[], MPI_Datatype datatype, MPI_Op op, MPI_Comm comm) |
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588 | { |
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589 | |
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590 | if(!comm.is_ep && comm.mpi_comm) |
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591 | { |
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592 | #ifdef _serialized |
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593 | #pragma omp critical (_mpi_call) |
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594 | #endif // _serialized |
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595 | ::MPI_Reduce_scatter(sendbuf, recvbuf, recvcounts, static_cast< ::MPI_Datatype>(datatype), static_cast< ::MPI_Op>(op), |
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596 | static_cast< ::MPI_Comm>(comm.mpi_comm)); |
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597 | return 0; |
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598 | } |
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599 | |
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600 | if(!comm.mpi_comm) return 0; |
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601 | |
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602 | int ep_rank, ep_rank_loc, mpi_rank; |
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603 | int ep_size, num_ep, mpi_size; |
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604 | |
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605 | ep_rank = comm.ep_comm_ptr->size_rank_info[0].first; |
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606 | ep_rank_loc = comm.ep_comm_ptr->size_rank_info[1].first; |
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607 | mpi_rank = comm.ep_comm_ptr->size_rank_info[2].first; |
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608 | ep_size = comm.ep_comm_ptr->size_rank_info[0].second; |
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609 | num_ep = comm.ep_comm_ptr->size_rank_info[1].second; |
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610 | mpi_size = comm.ep_comm_ptr->size_rank_info[2].second; |
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611 | |
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612 | void* local_buf; |
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613 | void* local_buf2; |
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614 | int local_buf_size = accumulate(recvcounts, recvcounts+ep_size, 0); |
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615 | int local_buf2_size = accumulate(recvcounts+ep_rank-ep_rank_loc, recvcounts+ep_rank-ep_rank_loc+num_ep, 0); |
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616 | |
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617 | ::MPI_Aint datasize, lb; |
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618 | #ifdef _serialized |
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619 | #pragma omp critical (_mpi_call) |
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620 | #endif // _serialized |
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621 | ::MPI_Type_get_extent(static_cast< ::MPI_Datatype>(datatype), &lb, &datasize); |
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622 | |
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623 | if(ep_rank_loc == 0) |
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624 | { |
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625 | local_buf = new void*[local_buf_size*datasize]; |
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626 | local_buf2 = new void*[local_buf2_size*datasize]; |
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627 | } |
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628 | MPI_Reduce_local(sendbuf, local_buf, local_buf_size, MPI_INT, op, comm); |
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629 | |
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630 | |
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631 | if(ep_rank_loc == 0) |
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632 | { |
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633 | int local_recvcnt[mpi_size]; |
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634 | for(int i=0; i<mpi_size; i++) |
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635 | { |
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636 | local_recvcnt[i] = accumulate(recvcounts+ep_rank, recvcounts+ep_rank+num_ep, 0); |
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637 | } |
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638 | #ifdef _serialized |
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639 | #pragma omp critical (_mpi_call) |
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640 | #endif // _serialized |
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641 | ::MPI_Reduce_scatter(local_buf, local_buf2, local_recvcnt, static_cast< ::MPI_Datatype>(datatype), |
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642 | static_cast< ::MPI_Op>(op), static_cast< ::MPI_Comm>(comm.mpi_comm)); |
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643 | } |
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644 | |
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645 | |
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646 | int displs[num_ep]; |
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647 | displs[0] = 0; |
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648 | for(int i=1; i<num_ep; i++) |
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649 | { |
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650 | displs[i] = displs[i-1] + recvcounts[ep_rank-ep_rank_loc+i-1]; |
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651 | } |
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652 | |
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653 | MPI_Scatterv_local(local_buf2, recvcounts+ep_rank-ep_rank_loc, displs, datatype, recvbuf, comm); |
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654 | |
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655 | if(ep_rank_loc == 0) |
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656 | { |
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657 | if(datatype == MPI_INT) |
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658 | { |
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659 | delete[] static_cast<int*>(local_buf); |
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660 | delete[] static_cast<int*>(local_buf2); |
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661 | } |
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662 | else if(datatype == MPI_FLOAT) |
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663 | { |
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664 | delete[] static_cast<float*>(local_buf); |
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665 | delete[] static_cast<float*>(local_buf2); |
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666 | } |
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667 | else if(datatype == MPI_DOUBLE) |
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668 | { |
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669 | delete[] static_cast<double*>(local_buf); |
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670 | delete[] static_cast<double*>(local_buf2); |
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671 | } |
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672 | else if(datatype == MPI_LONG) |
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673 | { |
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674 | delete[] static_cast<long*>(local_buf); |
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675 | delete[] static_cast<long*>(local_buf2); |
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676 | } |
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677 | else if(datatype == MPI_UNSIGNED_LONG) |
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678 | { |
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679 | delete[] static_cast<unsigned long*>(local_buf); |
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680 | delete[] static_cast<unsigned long*>(local_buf2); |
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681 | } |
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682 | else // if(datatype == MPI_DOUBLE) |
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683 | { |
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684 | delete[] static_cast<char*>(local_buf); |
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685 | delete[] static_cast<char*>(local_buf2); |
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686 | } |
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687 | } |
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688 | |
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689 | Message_Check(comm); |
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690 | return 0; |
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691 | } |
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692 | } |
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693 | |
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