1 | #include "xios_spl.hpp" |
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2 | #include "exception.hpp" |
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3 | #include "log.hpp" |
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4 | #include "buffer_out.hpp" |
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5 | #include "buffer_client.hpp" |
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6 | #include "cxios.hpp" |
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7 | #include "mpi.hpp" |
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8 | #include "tracer.hpp" |
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9 | #include "timeline_events.hpp" |
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10 | #include "timer.hpp" |
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11 | |
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12 | namespace xios |
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13 | { |
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14 | size_t CClientBuffer::maxRequestSize = 0; |
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15 | |
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16 | CClientBuffer::CClientBuffer(MPI_Comm interComm, int serverRank, StdSize bufferSize, bool hasWindows) |
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17 | : interComm(interComm) |
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18 | , clientRank_(0) |
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19 | , serverRank(serverRank) |
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20 | , bufferSize(bufferSize) |
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21 | , maxEventSize(0) |
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22 | , current(0) |
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23 | , count(0) |
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24 | , pending(false) |
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25 | , hasWindows_(hasWindows) |
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26 | { |
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27 | if (hasWindows_) |
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28 | { |
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29 | windows_.resize(2) ; |
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30 | windows_[0] = new CWindowDynamic() ; |
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31 | windows_[0]->allocateBuffer(bufferSize+headerSize_) ; |
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32 | bufferHeader[0] = (char*) windows_[0]->getBufferAddress() ; |
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33 | windows_[1] = new CWindowDynamic() ; |
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34 | windows_[1]->allocateBuffer(bufferSize+headerSize_) ; |
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35 | bufferHeader[1] = (char*) windows_[1]->getBufferAddress() ; |
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36 | } |
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37 | else |
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38 | { |
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39 | MPI_Alloc_mem(bufferSize+headerSize_, MPI_INFO_NULL, &bufferHeader[0]) ; |
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40 | MPI_Alloc_mem(bufferSize+headerSize_, MPI_INFO_NULL, &bufferHeader[1]) ; |
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41 | } |
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42 | |
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43 | buffer[0] = bufferHeader[0]+headerSize_ ; |
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44 | buffer[1] = bufferHeader[1]+headerSize_ ; |
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45 | firstTimeLine[0]=(size_t*)bufferHeader[0] + timeLineOffset_ ; |
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46 | firstTimeLine[1]=(size_t*)bufferHeader[1] + timeLineOffset_ ; |
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47 | bufferCount[0]=(size_t*)bufferHeader[0] + countOffset_ ; |
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48 | bufferCount[1]=(size_t*)bufferHeader[1] + countOffset_ ; |
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49 | control[0]=(size_t*)bufferHeader[0] + controlOffset_ ; |
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50 | control[1]=(size_t*)bufferHeader[1] + controlOffset_ ; |
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51 | notify[0]=(size_t*)bufferHeader[0] + notifyOffset_ ; |
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52 | notify[1]=(size_t*)bufferHeader[1] + notifyOffset_ ; |
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53 | |
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54 | *firstTimeLine[0]=0 ; |
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55 | *firstTimeLine[1]=0 ; |
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56 | *bufferCount[0]=0 ; |
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57 | *bufferCount[1]=0 ; |
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58 | *control[0]=0 ; |
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59 | *control[1]=0 ; |
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60 | *notify[0]=notifyNothing_ ; |
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61 | *notify[1]=notifyNothing_ ; |
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62 | winState[0]=false ; |
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63 | winState[1]=false ; |
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64 | |
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65 | |
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66 | retBuffer = new CBufferOut(buffer[current], bufferSize); |
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67 | info(10) << "CClientBuffer: allocated 2 x " << bufferSize << " bytes for server " << serverRank << endl; |
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68 | } |
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69 | |
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70 | MPI_Aint CClientBuffer::getWinAddress(int i) |
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71 | { |
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72 | MPI_Aint address ; |
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73 | MPI_Get_address(bufferHeader[i], &address) ; |
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74 | return address ; |
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75 | } |
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76 | |
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77 | MPI_Aint CClientBuffer::getWinBufferAddress(int i) |
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78 | { |
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79 | return windows_[i]->getWinBufferAddress() ; |
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80 | } |
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81 | |
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82 | void CClientBuffer::attachWindows(MPI_Comm& winComm) |
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83 | { |
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84 | isAttachedWindows_=true ; |
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85 | |
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86 | if (hasWindows_) |
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87 | { |
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88 | MPI_Aint buffSize=bufferSize+headerSize_ ; |
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89 | windows_[0]->create(winComm) ; |
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90 | windows_[0]->attach() ; |
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91 | windows_[1]->create(winComm) ; |
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92 | windows_[1]->attach() ; |
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93 | |
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94 | windows_[0]->lockExclusive(clientRank_) ; |
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95 | windows_[1]->lockExclusive(clientRank_) ; |
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96 | |
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97 | windows_[0]->unlockExclusive(clientRank_) ; |
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98 | windows_[1]->unlockExclusive(clientRank_) ; |
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99 | |
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100 | } |
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101 | |
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102 | } |
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103 | |
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104 | |
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105 | CClientBuffer::~CClientBuffer() |
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106 | { |
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107 | if (hasWindows_) |
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108 | { |
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109 | windows_[0]->detach() ; |
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110 | windows_[1]->detach() ; |
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111 | delete windows_[0] ; |
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112 | delete windows_[1] ; |
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113 | } |
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114 | else |
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115 | { |
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116 | MPI_Free_mem(bufferHeader[0]) ; |
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117 | MPI_Free_mem(bufferHeader[1]) ; |
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118 | } |
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119 | delete retBuffer; |
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120 | } |
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121 | |
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122 | void CClientBuffer::lockBuffer(void) |
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123 | { |
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124 | CTimer::get("lock buffer").resume(); |
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125 | if (isAttachedWindows_) |
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126 | { |
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127 | if (winState[current]==true) ERROR("CClientBuffer::lockBuffer(void)",<<"Try lo lock client buffer but winState said it is already locked") ; |
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128 | //MPI_Win_lock(MPI_LOCK_EXCLUSIVE,clientRank_, 0, windows_[current]) ; |
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129 | windows_[current]->lockExclusive(clientRank_) ; |
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130 | winState[current]=true ; |
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131 | } |
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132 | CTimer::get("lock buffer").suspend(); |
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133 | } |
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134 | |
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135 | void CClientBuffer::unlockBuffer(void) |
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136 | { |
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137 | CTimer::get("unlock buffer").resume(); |
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138 | if (isAttachedWindows_) |
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139 | { |
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140 | if (winState[current]==false) ERROR("CClientBuffer::lockBuffer(void)",<<"Try lo unlock client buffer but winState said it is already unlocked") ; |
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141 | //MPI_Win_unlock(clientRank_, windows_[current]) ; |
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142 | windows_[current]->unlockExclusive(clientRank_) ; |
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143 | winState[current]=false ; |
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144 | } |
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145 | CTimer::get("unlock buffer").suspend(); |
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146 | } |
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147 | |
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148 | StdSize CClientBuffer::remain(void) |
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149 | { |
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150 | return bufferSize - count; |
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151 | } |
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152 | |
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153 | bool CClientBuffer::isBufferFree(StdSize size) |
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154 | { |
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155 | if (!isAttachedWindows_) return false; |
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156 | |
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157 | lockBuffer(); |
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158 | count=*bufferCount[current] ; |
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159 | |
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160 | if (resizingBufferStep_ > 0 ) return false ; |
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161 | |
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162 | if (size > bufferSize) |
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163 | { |
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164 | resizingBufferStep_=1 ; |
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165 | *firstTimeLine[current]=0 ; |
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166 | newBufferSize_=size ; |
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167 | return false ; |
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168 | } |
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169 | |
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170 | if (size > maxEventSize) |
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171 | { |
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172 | maxEventSize = size; |
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173 | |
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174 | if (size > maxRequestSize) maxRequestSize = size; |
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175 | } |
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176 | |
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177 | if (size > remain()) |
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178 | { |
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179 | if (isGrowableBuffer_) |
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180 | { |
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181 | resizingBufferStep_ = 1 ; |
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182 | *firstTimeLine[current]=0 ; |
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183 | newBufferSize_ = (count+size)*growFactor_ ; |
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184 | } |
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185 | return false ; |
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186 | } |
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187 | else return true ; |
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188 | } |
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189 | |
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190 | |
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191 | CBufferOut* CClientBuffer::getBuffer(size_t timeLine, StdSize size) |
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192 | { |
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193 | if (size <= remain()) |
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194 | { |
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195 | retBuffer->realloc(buffer[current] + count, size); |
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196 | count += size; |
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197 | if (*firstTimeLine[current]==0) *firstTimeLine[current]=timeLine ; |
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198 | *bufferCount[current]=count ; |
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199 | return retBuffer; |
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200 | } |
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201 | else |
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202 | { |
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203 | ERROR("CBufferOut* CClientBuffer::getBuffer(StdSize size)", |
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204 | << "Not enough space in buffer, this should not have happened..."); |
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205 | return NULL; |
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206 | } |
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207 | } |
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208 | |
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209 | void CClientBuffer::infoBuffer(void) |
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210 | { |
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211 | |
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212 | char checksum=0 ; |
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213 | for(size_t i=0;i<*bufferCount[current];i++) checksum=checksum+buffer[current][i] ; |
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214 | |
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215 | char checksumFirst=0 ; |
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216 | for(size_t i=5; i<10 && i<*bufferCount[current] ;i++) checksumFirst=checksumFirst+buffer[current][i] ; |
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217 | |
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218 | char checksumLast=0 ; |
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219 | for(size_t i=(*bufferCount[current]<10)?0:*bufferCount[current]-10; i<*bufferCount[current] ; i++) checksumLast=checksumLast+buffer[current][i] ; |
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220 | |
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221 | info(45)<<"CClientBuffer::infoBuffer "<<" clientRank_ "<<clientRank_<<" serverRank "<<serverRank <<" current "<<current<<" WinState "<<winState[current] |
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222 | <<" firstTimeLine "<<*firstTimeLine[current]<<" count "<<*bufferCount[current]<<" checksum "<<(int)checksum<<" " |
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223 | <<(int)buffer[current][0]<<" "<<(int)buffer[current][1]<<" "<<(int)buffer[current][2]<<" "<<(int)buffer[current][3]<<" "<<(int)buffer[current][4]<<" "<<(int)buffer[current][5]<<" " |
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224 | <<(int)buffer[current][6]<<" "<<(int)buffer[current][7]<<" "<<(int)buffer[current][8]<<" "<<(int)buffer[current][9]<<" "<<(int)buffer[current][10]<<" "<<(int)buffer[current][11]<<endl ; |
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225 | |
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226 | } |
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227 | |
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228 | bool CClientBuffer::checkBuffer(bool send) |
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229 | { |
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230 | MPI_Status status; |
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231 | int flag; |
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232 | MPI_Iprobe(MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &flag, MPI_STATUS_IGNORE); |
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233 | |
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234 | if (pending) |
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235 | { |
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236 | traceOff(); |
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237 | MPI_Test(&request, &flag, &status); |
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238 | traceOn(); |
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239 | if (flag == true) pending = false; |
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240 | } |
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241 | |
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242 | if (!pending) |
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243 | { |
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244 | if (!send && resizingBufferStep_==0 ) return false ; |
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245 | |
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246 | if (count > 0) |
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247 | { |
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248 | double time=MPI_Wtime() ; |
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249 | if (time - lastCheckedWithNothing_ > latency_) |
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250 | { |
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251 | lockBuffer() ; |
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252 | if (*bufferCount[current] > 0) |
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253 | { |
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254 | MPI_Issend(buffer[current], count, MPI_CHAR, serverRank, 20, interComm, &request); |
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255 | if (resizingBufferStep_==4) resizingBufferStep_=0 ; |
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256 | pending = true; |
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257 | *firstTimeLine[current]=0 ; |
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258 | *bufferCount[current]=0 ; |
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259 | |
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260 | unlockBuffer() ; |
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261 | |
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262 | if (current == 1) current = 0; |
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263 | else current = 1; |
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264 | count = 0; |
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265 | } |
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266 | else |
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267 | { |
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268 | unlockBuffer() ; |
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269 | lastCheckedWithNothing_ = time ; |
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270 | } |
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271 | } |
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272 | } |
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273 | else |
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274 | { |
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275 | if (resizingBufferStep_==1) resizeBufferNotify() ; |
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276 | else if (resizingBufferStep_==2) isNotifiedChangeBufferSize() ; |
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277 | else if (resizingBufferStep_==3) resizeBuffer(newBufferSize_) ; |
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278 | } |
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279 | } |
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280 | |
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281 | return pending; |
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282 | } |
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283 | |
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284 | void CClientBuffer::resizeBufferNotify(void) |
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285 | { |
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286 | // notify server of changing buffers size |
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287 | lockBuffer() ; |
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288 | int size=sizeof(int)+sizeof(size_t) ; |
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289 | CBufferOut* bufOut = this->getBuffer(timelineEventNotifyChangeBufferSize, size); |
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290 | bufOut->put(size); |
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291 | bufOut->put(timelineEventNotifyChangeBufferSize); |
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292 | resizingBufferStep_ = 2 ; |
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293 | unlockBuffer() ; |
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294 | } |
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295 | |
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296 | void CClientBuffer::resizeBuffer(size_t newSize) |
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297 | { |
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298 | |
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299 | bufferSize=newSize ; |
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300 | |
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301 | if (hasWindows_) |
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302 | { |
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303 | windows_[0]->detach(); |
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304 | windows_[1]->detach(); |
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305 | |
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306 | windows_[0]->attach(bufferSize+headerSize_) ; |
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307 | bufferHeader[0] = (char*) windows_[0] -> getBufferAddress() ; |
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308 | windows_[1]->attach(bufferSize+headerSize_) ; |
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309 | bufferHeader[1] = (char*) windows_[1] -> getBufferAddress() ; |
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310 | } |
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311 | |
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312 | |
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313 | buffer[0] = bufferHeader[0]+headerSize_ ; |
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314 | buffer[1] = bufferHeader[1]+headerSize_ ; |
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315 | firstTimeLine[0]=(size_t*)bufferHeader[0] + timeLineOffset_; |
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316 | firstTimeLine[1]=(size_t*)bufferHeader[1] + timeLineOffset_; |
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317 | bufferCount[0]=(size_t*)bufferHeader[0] + countOffset_ ; |
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318 | bufferCount[1]=(size_t*)bufferHeader[1] + countOffset_ ; |
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319 | control[0]=(size_t*)bufferHeader[0] + controlOffset_ ; // control=0 => nothing ; control=1 => changeBufferSize |
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320 | control[1]=(size_t*)bufferHeader[1] + controlOffset_ ; |
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321 | notify[0]=(size_t*)bufferHeader[0] + notifyOffset_ ; |
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322 | notify[1]=(size_t*)bufferHeader[1] + notifyOffset_ ; |
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323 | |
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324 | *firstTimeLine[0]=0 ; |
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325 | *firstTimeLine[1]=0 ; |
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326 | *bufferCount[0]=0 ; |
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327 | *bufferCount[1]=0 ; |
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328 | *control[0]=0 ; |
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329 | *control[1]=0 ; |
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330 | *notify[0] = notifyNothing_ ; |
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331 | *notify[1] = notifyNothing_ ; |
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332 | winState[0]=false ; |
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333 | winState[1]=false ; |
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334 | current=0 ; |
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335 | |
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336 | if (hasWindows_) |
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337 | { |
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338 | |
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339 | windows_[0]->lockExclusive(clientRank_) ; |
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340 | windows_[1]->lockExclusive(clientRank_) ; |
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341 | |
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342 | windows_[1]->unlockExclusive(clientRank_) ; |
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343 | windows_[0]->unlockExclusive(clientRank_) ; |
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344 | } |
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345 | |
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346 | lockBuffer() ; |
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347 | |
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348 | int size=sizeof(int)+2*sizeof(size_t)+2*sizeof(MPI_Aint) ; |
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349 | CBufferOut* bufOut = this->getBuffer(timelineEventChangeBufferSize, size); |
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350 | bufOut->put(size); |
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351 | bufOut->put(timelineEventChangeBufferSize); |
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352 | bufOut->put(newBufferSize_); |
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353 | |
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354 | bufOut->put(this->getWinBufferAddress(0)); |
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355 | bufOut->put(this->getWinBufferAddress(1)); |
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356 | |
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357 | resizingBufferStep_=4; |
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358 | unlockBuffer() ; |
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359 | info(100)<<"CClientBuffer::resizeBuffer(size_t newSize) : resizing buffer of server "<<serverRank<<" ; new size : "<<newSize<<" ; winAdress[0] "<<this->getWinBufferAddress(0)<<" winAdress[1] "<<this->getWinBufferAddress(1)<<endl; |
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360 | } |
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361 | |
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362 | bool CClientBuffer::hasPendingRequest(void) |
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363 | { |
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364 | |
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365 | lockBuffer() ; |
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366 | count=*bufferCount[current] ; |
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367 | unlockBuffer() ; |
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368 | |
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369 | return (pending || count > 0); |
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370 | } |
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371 | |
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372 | bool CClientBuffer::isNotifiedChangeBufferSize(void) |
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373 | { |
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374 | |
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375 | bool ret ; |
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376 | lockBuffer() ; |
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377 | ret=*notify[current] == notifyResizeBuffer_ ? true : false ; |
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378 | if (ret || !hasWindows_) |
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379 | { |
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380 | *notify[current] = notifyNothing_ ; |
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381 | resizingBufferStep_=3; |
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382 | } |
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383 | unlockBuffer() ; |
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384 | |
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385 | return ret; |
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386 | } |
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387 | |
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388 | bool CClientBuffer::isNotifiedFinalized(void) |
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389 | { |
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390 | if (!isFinalized_) |
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391 | { |
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392 | double time=MPI_Wtime() ; |
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393 | // if (time - lastCheckedNotify_ > latency_) |
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394 | { |
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395 | int flag ; |
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396 | MPI_Iprobe(MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &flag, MPI_STATUS_IGNORE); |
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397 | lockBuffer() ; |
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398 | isFinalized_=*notify[current] == notifyFinalize_ ? true : false ; |
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399 | unlockBuffer() ; |
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400 | lastCheckedNotify_=time ; |
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401 | } |
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402 | } |
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403 | return isFinalized_ ; |
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404 | } |
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405 | |
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406 | } |
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