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| <a href="include_2mxnet_2kvstore_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * distributed with this work for additional information</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * "License"); you may not use this file except in compliance</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * with the License. You may obtain a copy of the License at</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * software distributed under the License is distributed on an</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * KIND, either express or implied. See the License for the</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * specific language governing permissions and limitations</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * under the License.</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> */</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#ifndef MXNET_KVSTORE_H_</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#define MXNET_KVSTORE_H_</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <dmlc/io.h></span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <vector></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <utility></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <unordered_map></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <functional></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <atomic></span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "../../src/kvstore/gradient_compression.h"</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "<a class="code" href="include_2mxnet_2ndarray_8h.html">./ndarray.h</a>"</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#if MXNET_USE_DIST_KVSTORE</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "ps/ps.h"</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#endif // MXNET_USE_DIST_KVSTORE</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">namespace </span><a class="code" href="namespacemxnet.html">mxnet</a> {</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="namespacemxnet.html#a691b662ef3ae22904fc7d7d63db4c14e"> 49</a></span> <span class="keyword">enum class</span> <a class="code" href="namespacemxnet.html#a691b662ef3ae22904fc7d7d63db4c14e">KVStoreServerProfilerCommand</a> {</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <a class="code" href="namespacemxnet.html#a691b662ef3ae22904fc7d7d63db4c14eac01ffbc8ad7ddf59499b096d62edcdff">kSetConfig</a>, <a class="code" href="namespacemxnet.html#a691b662ef3ae22904fc7d7d63db4c14eaafd8bac1c90d2b1e9ad1ea7d74c46618">kState</a>, <a class="code" href="namespacemxnet.html#a691b662ef3ae22904fc7d7d63db4c14ea583e1d2af95bc205bafe3341b26ea286">kPause</a>, <a class="code" href="namespacemxnet.html#a691b662ef3ae22904fc7d7d63db4c14ea0193ec3ba4814ec4c6c0714a97f1bcac">kDump</a></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> };</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html"> 59</a></span> <span class="keyword">class </span><a class="code" href="classmxnet_1_1KVStore.html">KVStore</a> {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a02e23071eb46464b58f2e2bf5654d6d6"> 62</a></span> <span class="keyword">virtual</span> <a class="code" href="classmxnet_1_1KVStore.html#a02e23071eb46464b58f2e2bf5654d6d6">~KVStore</a>() {}</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="keyword">static</span> <a class="code" href="classmxnet_1_1KVStore.html">KVStore</a> *Create(<span class="keyword">const</span> <span class="keywordtype">char</span> *type = <span class="stringliteral">"local"</span>);</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a722b2150dbf50d528fce62307809f949"> 79</a></span> <span class="keyword">inline</span> <span class="keyword">const</span> std::string& <a class="code" href="classmxnet_1_1KVStore.html#a722b2150dbf50d528fce62307809f949">type</a>() { <span class="keywordflow">return</span> type_; }</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetGradientCompression(<span class="keyword">const</span> std::vector<std::pair<std::string, std::string> ></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> & kwargs) = 0;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Init(<span class="keyword">const</span> std::vector<int>& keys,</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="keyword">const</span> std::vector<NDArray>& values) = 0;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Init(<span class="keyword">const</span> std::vector<std::string>& str_keys,</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">const</span> std::vector<NDArray>& values) = 0;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Push(<span class="keyword">const</span> std::vector<int>& keys,</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="keyword">const</span> std::vector<NDArray>& values,</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="keywordtype">int</span> priority = 0) = 0;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Push(<span class="keyword">const</span> std::vector<std::string>& str_keys,</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="keyword">const</span> std::vector<NDArray>& values,</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="keywordtype">int</span> priority = 0) = 0;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Pull(<span class="keyword">const</span> std::vector<int>& keys,</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="keyword">const</span> std::vector<NDArray*>& values,</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="keywordtype">int</span> priority = 0, <span class="keywordtype">bool</span> ignore_sparse = <span class="keyword">true</span>) = 0;</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Pull(<span class="keyword">const</span> std::vector<std::string>& str_keys,</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="keyword">const</span> std::vector<NDArray*>& values,</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="keywordtype">int</span> priority = 0, <span class="keywordtype">bool</span> ignore_sparse = <span class="keyword">true</span>) = 0;</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> PullRowSparse(<span class="keyword">const</span> std::vector<int>& str_keys,</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="keyword">const</span> std::vector<std::pair<NDArray*, NDArray>>& val_rowids,</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="keywordtype">int</span> priority = 0) = 0;</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> </div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> PullRowSparse(<span class="keyword">const</span> std::vector<std::string>& str_keys,</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="keyword">const</span> std::vector<std::pair<NDArray*, NDArray>>& val_rowids,</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="keywordtype">int</span> priority = 0) = 0;</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div><div class="line"><a name="l00228"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a6e4a76bd57f185349c58a5a658c32a64"> 228</a></span> <span class="keyword">typedef</span> std::function<void(int, const NDArray&, NDArray*)> <a class="code" href="classmxnet_1_1KVStore.html#a6e4a76bd57f185349c58a5a658c32a64">Updater</a>;</div><div class="line"><a name="l00232"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#abe6963a386cc6dc579029349a447d1cb"> 232</a></span> <span class="keyword">typedef</span> std::function<void(const std::string&, const NDArray&, NDArray*)> <a class="code" href="classmxnet_1_1KVStore.html#abe6963a386cc6dc579029349a447d1cb">StrUpdater</a>;</div><div class="line"><a name="l00242"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a352ef7eae04211eca1ed47401a6d15d5"> 242</a></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1KVStore.html#a352ef7eae04211eca1ed47401a6d15d5">set_updater</a>(<span class="keyword">const</span> Updater& updater) {</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> CHECK(updater) << <span class="stringliteral">"invalid updater"</span>;</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> updater_ = updater;</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> }</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div><div class="line"><a name="l00256"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a777f1de6348bba9ef62b56064a6e0c46"> 256</a></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1KVStore.html#a777f1de6348bba9ef62b56064a6e0c46">set_updater</a>(<span class="keyword">const</span> StrUpdater& updater) {</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> CHECK(updater) << <span class="stringliteral">"invalid updater"</span>;</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> str_updater_ = updater;</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span> }</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="comment">/******************************************************</span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="comment"> * the following are used for multi-machines.</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment"> ******************************************************/</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div><div class="line"><a name="l00269"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a5d919a7a4c9495e9a569c8d733d6325f"> 269</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1KVStore.html#a5d919a7a4c9495e9a569c8d733d6325f">InitPSEnv</a>(<span class="keyword">const</span> std::unordered_map<std::string, std::string>& envs) {</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="preprocessor">#if MXNET_USE_DIST_KVSTORE</span></div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span> ps::Environment::Init(envs);</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span> LOG(FATAL) << <span class="stringliteral">"compile with USE_DIST_KVSTORE=1 to init parameter server's environment"</span>;</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="preprocessor">#endif // MXNET_USE_DIST_KVSTORE</span></div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> }</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span> </div><div class="line"><a name="l00282"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#ab216fb292fa77e843e95f474fa671a20"> 282</a></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classmxnet_1_1KVStore.html#ab216fb292fa77e843e95f474fa671a20">IsWorkerNode</a>() {</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="preprocessor">#if MXNET_USE_DIST_KVSTORE</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* role_str = ps::Environment::Get()->find(<span class="stringliteral">"DMLC_ROLE"</span>);</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="keywordflow">return</span> (role_str == <span class="keyword">nullptr</span>) || (!strcmp(role_str, <span class="stringliteral">"worker"</span>));</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="preprocessor">#endif // MXNET_USE_DIST_KVSTORE</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> }</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> </div><div class="line"><a name="l00296"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a101178924ce1d635b0c8c2a5bce0ceaf"> 296</a></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classmxnet_1_1KVStore.html#a101178924ce1d635b0c8c2a5bce0ceaf">IsServerNode</a>() {</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="preprocessor">#if MXNET_USE_DIST_KVSTORE</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* role_str = ps::Environment::Get()->find(<span class="stringliteral">"DMLC_ROLE"</span>);</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="keywordflow">return</span> (role_str != <span class="keyword">nullptr</span>) && (!strcmp(role_str, <span class="stringliteral">"server"</span>));</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="preprocessor">#endif // MXNET_USE_DIST_KVSTORE</span></div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span> }</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> </div><div class="line"><a name="l00305"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#afa87753d90fc7e75234229834ea23abb"> 305</a></span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1KVStore.html#afa87753d90fc7e75234229834ea23abb">set_barrier_before_exit</a>(<span class="keyword">const</span> <span class="keywordtype">bool</span> barrier_before_exit) {</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="preprocessor">#if MXNET_USE_DIST_KVSTORE</span></div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="keywordflow">if</span> (!IsWorkerNode()) LOG(FATAL) << <span class="stringliteral">"barrier_before_exit takes effect only on worker nodes"</span>;</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span> barrier_before_exit_ = barrier_before_exit;</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span> LOG(FATAL) << <span class="stringliteral">"compile with USE_DIST_KVSTORE=1 to enable barrier"</span>;</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> }</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div><div class="line"><a name="l00319"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a41113b9dfeab6c705ba064cc3f010fb4"> 319</a></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classmxnet_1_1KVStore.html#a41113b9dfeab6c705ba064cc3f010fb4">IsSchedulerNode</a>() {</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span> <span class="preprocessor">#if MXNET_USE_DIST_KVSTORE</span></div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* role_str = ps::Environment::Get()->find(<span class="stringliteral">"DMLC_ROLE"</span>);</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span> <span class="keywordflow">return</span> (role_str != <span class="keyword">nullptr</span>) && (!strcmp(role_str, <span class="stringliteral">"scheduler"</span>));</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span> <span class="preprocessor">#endif // MXNET_USE_DIST_KVSTORE</span></div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span> }</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span> </div><div class="line"><a name="l00334"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a262ef45340106fdb5c2a296c3cb711b1"> 334</a></span> <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classmxnet_1_1KVStore.html#a262ef45340106fdb5c2a296c3cb711b1">get_rank</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> }</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span> </div><div class="line"><a name="l00341"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a1fd19b2a123b6069b35e1e8b7fad9dc3"> 341</a></span> <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classmxnet_1_1KVStore.html#a1fd19b2a123b6069b35e1e8b7fad9dc3">get_group_size</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> }</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span> </div><div class="line"><a name="l00353"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#af5c48df3aade761a547a1dc6f7b8702d"> 353</a></span> <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classmxnet_1_1KVStore.html#af5c48df3aade761a547a1dc6f7b8702d">get_num_dead_node</a>(<span class="keywordtype">int</span> node_id, <span class="keywordtype">int</span> timeout = 60)<span class="keyword"> const </span>{</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span> }</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> </div><div class="line"><a name="l00364"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a4f9275fb7a11589fae1dcc5a8a3354ac"> 364</a></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1KVStore.html#a4f9275fb7a11589fae1dcc5a8a3354ac">Barrier</a>() { }</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span> </div><div class="line"><a name="l00377"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a4ff4ca05f3c519ebbc2e46264e8b63dd"> 377</a></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1KVStore.html#a4ff4ca05f3c519ebbc2e46264e8b63dd">SendCommandToServers</a>(<span class="keywordtype">int</span> cmd_id, <span class="keyword">const</span> std::string& cmd_body) { }</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span> </div><div class="line"><a name="l00385"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a9e11acc2968464f907633a1c72e4d545"> 385</a></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1KVStore.html#a9e11acc2968464f907633a1c72e4d545">SetServerProfilerCommand</a>(<span class="keyword">const</span> <a class="code" href="namespacemxnet.html#a691b662ef3ae22904fc7d7d63db4c14e">KVStoreServerProfilerCommand</a> type,</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> <span class="keyword">const</span> std::string& params) {</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span> LOG(INFO) << <span class="stringliteral">"Unable to pass server the profiler command. If you are using "</span></div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span> << <span class="stringliteral">"distributed kvstore, you need to compile with USE_DIST_KVSTORE=1."</span></div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span> << <span class="stringliteral">"If you are training on single machine, then there is no server process"</span></div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span> << <span class="stringliteral">"to profile. Please profile the worker process instead."</span>;</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span> }</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span> </div><div class="line"><a name="l00396"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a50db5cb1a140fb84c8e31def54270ae3"> 396</a></span> <span class="keyword">typedef</span> std::function<void(int, const std::string&)> <a class="code" href="classmxnet_1_1KVStore.html#a50db5cb1a140fb84c8e31def54270ae3">Controller</a>;</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span> </div><div class="line"><a name="l00411"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#ae137ab8b5407060529c18a8084946d0b"> 411</a></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmxnet_1_1KVStore.html#ae137ab8b5407060529c18a8084946d0b">RunServer</a>(<span class="keyword">const</span> Controller& controller) { }</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span> </div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00417"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a01befb768a81a8e7a366708240ee6d06"> 417</a></span> Updater <a class="code" href="classmxnet_1_1KVStore.html#a01befb768a81a8e7a366708240ee6d06">updater_</a>;</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span> </div><div class="line"><a name="l00422"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#abf0f494ba57dd7b035ece0d96eb5575f"> 422</a></span> StrUpdater <a class="code" href="classmxnet_1_1KVStore.html#abf0f494ba57dd7b035ece0d96eb5575f">str_updater_</a>;</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> </div><div class="line"><a name="l00427"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#ad1023ca677c6e87ccc7d92c4df48bd40"> 427</a></span> std::string <a class="code" href="classmxnet_1_1KVStore.html#ad1023ca677c6e87ccc7d92c4df48bd40">type_</a>;</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span> </div><div class="line"><a name="l00433"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#a4131e7db30b5e7be34997abcf75741a6"> 433</a></span> std::shared_ptr<kvstore::GradientCompression> <a class="code" href="classmxnet_1_1KVStore.html#a4131e7db30b5e7be34997abcf75741a6">gradient_compression_</a>;</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span> </div><div class="line"><a name="l00438"></a><span class="lineno"><a class="line" href="classmxnet_1_1KVStore.html#aa8ba7abf8334326cab19eb568cb31cfa"> 438</a></span> std::atomic<bool> barrier_before_exit_{<span class="keyword">true</span>};</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span> };</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span> </div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span> } <span class="comment">// namespace mxnet</span></div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> <span class="preprocessor">#endif // MXNET_KVSTORE_H_</span></div><div class="ttc" id="classmxnet_1_1KVStore_html"><div class="ttname"><a href="classmxnet_1_1KVStore.html">mxnet::KVStore</a></div><div class="ttdoc">distributed key-value store </div><div class="ttdef"><b>Definition:</b> kvstore.h:59</div></div> |
| <div class="ttc" id="namespacemxnet_html_a691b662ef3ae22904fc7d7d63db4c14eac01ffbc8ad7ddf59499b096d62edcdff"><div class="ttname"><a href="namespacemxnet.html#a691b662ef3ae22904fc7d7d63db4c14eac01ffbc8ad7ddf59499b096d62edcdff">mxnet::KVStoreServerProfilerCommand::kSetConfig</a></div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a6e4a76bd57f185349c58a5a658c32a64"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a6e4a76bd57f185349c58a5a658c32a64">mxnet::KVStore::Updater</a></div><div class="ttdeci">std::function< void(int, const NDArray &, NDArray *)> Updater</div><div class="ttdoc">the prototype of user-defined updater </div><div class="ttdef"><b>Definition:</b> kvstore.h:228</div></div> |
| <div class="ttc" id="namespacemxnet_html"><div class="ttname"><a href="namespacemxnet.html">mxnet</a></div><div class="ttdoc">namespace of mxnet </div><div class="ttdef"><b>Definition:</b> base.h:118</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a262ef45340106fdb5c2a296c3cb711b1"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a262ef45340106fdb5c2a296c3cb711b1">mxnet::KVStore::get_rank</a></div><div class="ttdeci">virtual int get_rank() const </div><div class="ttdef"><b>Definition:</b> kvstore.h:334</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a777f1de6348bba9ef62b56064a6e0c46"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a777f1de6348bba9ef62b56064a6e0c46">mxnet::KVStore::set_updater</a></div><div class="ttdeci">virtual void set_updater(const StrUpdater &updater)</div><div class="ttdoc">set an updater with string keys </div><div class="ttdef"><b>Definition:</b> kvstore.h:256</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a01befb768a81a8e7a366708240ee6d06"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a01befb768a81a8e7a366708240ee6d06">mxnet::KVStore::updater_</a></div><div class="ttdeci">Updater updater_</div><div class="ttdoc">the user-defined updater </div><div class="ttdef"><b>Definition:</b> kvstore.h:417</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a722b2150dbf50d528fce62307809f949"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a722b2150dbf50d528fce62307809f949">mxnet::KVStore::type</a></div><div class="ttdeci">const std::string & type()</div><div class="ttdoc">return the type </div><div class="ttdef"><b>Definition:</b> kvstore.h:79</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a41113b9dfeab6c705ba064cc3f010fb4"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a41113b9dfeab6c705ba064cc3f010fb4">mxnet::KVStore::IsSchedulerNode</a></div><div class="ttdeci">static bool IsSchedulerNode()</div><div class="ttdef"><b>Definition:</b> kvstore.h:319</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a4f9275fb7a11589fae1dcc5a8a3354ac"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a4f9275fb7a11589fae1dcc5a8a3354ac">mxnet::KVStore::Barrier</a></div><div class="ttdeci">virtual void Barrier()</div><div class="ttdoc">global barrier among all worker machines </div><div class="ttdef"><b>Definition:</b> kvstore.h:364</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a5d919a7a4c9495e9a569c8d733d6325f"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a5d919a7a4c9495e9a569c8d733d6325f">mxnet::KVStore::InitPSEnv</a></div><div class="ttdeci">static void InitPSEnv(const std::unordered_map< std::string, std::string > &envs)</div><div class="ttdoc">initalize ps-lite environment variables </div><div class="ttdef"><b>Definition:</b> kvstore.h:269</div></div> |
| <div class="ttc" id="namespacemxnet_html_a691b662ef3ae22904fc7d7d63db4c14eaafd8bac1c90d2b1e9ad1ea7d74c46618"><div class="ttname"><a href="namespacemxnet.html#a691b662ef3ae22904fc7d7d63db4c14eaafd8bac1c90d2b1e9ad1ea7d74c46618">mxnet::KVStoreServerProfilerCommand::kState</a></div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_ab216fb292fa77e843e95f474fa671a20"><div class="ttname"><a href="classmxnet_1_1KVStore.html#ab216fb292fa77e843e95f474fa671a20">mxnet::KVStore::IsWorkerNode</a></div><div class="ttdeci">static bool IsWorkerNode()</div><div class="ttdef"><b>Definition:</b> kvstore.h:282</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a02e23071eb46464b58f2e2bf5654d6d6"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a02e23071eb46464b58f2e2bf5654d6d6">mxnet::KVStore::~KVStore</a></div><div class="ttdeci">virtual ~KVStore()</div><div class="ttdoc">virtual destructor </div><div class="ttdef"><b>Definition:</b> kvstore.h:62</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_afa87753d90fc7e75234229834ea23abb"><div class="ttname"><a href="classmxnet_1_1KVStore.html#afa87753d90fc7e75234229834ea23abb">mxnet::KVStore::set_barrier_before_exit</a></div><div class="ttdeci">void set_barrier_before_exit(const bool barrier_before_exit)</div><div class="ttdef"><b>Definition:</b> kvstore.h:305</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a9e11acc2968464f907633a1c72e4d545"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a9e11acc2968464f907633a1c72e4d545">mxnet::KVStore::SetServerProfilerCommand</a></div><div class="ttdeci">virtual void SetServerProfilerCommand(const KVStoreServerProfilerCommand type, const std::string &params)</div><div class="ttdoc">Sends server profiler commands to all server nodes Only the worker with rank=0 sends the command whic...</div><div class="ttdef"><b>Definition:</b> kvstore.h:385</div></div> |
| <div class="ttc" id="namespacemxnet_html_a691b662ef3ae22904fc7d7d63db4c14ea0193ec3ba4814ec4c6c0714a97f1bcac"><div class="ttname"><a href="namespacemxnet.html#a691b662ef3ae22904fc7d7d63db4c14ea0193ec3ba4814ec4c6c0714a97f1bcac">mxnet::KVStoreServerProfilerCommand::kDump</a></div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_abf0f494ba57dd7b035ece0d96eb5575f"><div class="ttname"><a href="classmxnet_1_1KVStore.html#abf0f494ba57dd7b035ece0d96eb5575f">mxnet::KVStore::str_updater_</a></div><div class="ttdeci">StrUpdater str_updater_</div><div class="ttdoc">the user-defined updater with string keys </div><div class="ttdef"><b>Definition:</b> kvstore.h:422</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_af5c48df3aade761a547a1dc6f7b8702d"><div class="ttname"><a href="classmxnet_1_1KVStore.html#af5c48df3aade761a547a1dc6f7b8702d">mxnet::KVStore::get_num_dead_node</a></div><div class="ttdeci">virtual int get_num_dead_node(int node_id, int timeout=60) const </div><div class="ttdef"><b>Definition:</b> kvstore.h:353</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a4131e7db30b5e7be34997abcf75741a6"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a4131e7db30b5e7be34997abcf75741a6">mxnet::KVStore::gradient_compression_</a></div><div class="ttdeci">std::shared_ptr< kvstore::GradientCompression > gradient_compression_</div><div class="ttdoc">Gradient compression object starts with GC_NONE mode Used if SetGradientCompression sets the type...</div><div class="ttdef"><b>Definition:</b> kvstore.h:433</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_ae137ab8b5407060529c18a8084946d0b"><div class="ttname"><a href="classmxnet_1_1KVStore.html#ae137ab8b5407060529c18a8084946d0b">mxnet::KVStore::RunServer</a></div><div class="ttdeci">virtual void RunServer(const Controller &controller)</div><div class="ttdoc">Run as server (or scheduler) </div><div class="ttdef"><b>Definition:</b> kvstore.h:411</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_abe6963a386cc6dc579029349a447d1cb"><div class="ttname"><a href="classmxnet_1_1KVStore.html#abe6963a386cc6dc579029349a447d1cb">mxnet::KVStore::StrUpdater</a></div><div class="ttdeci">std::function< void(const std::string &, const NDArray &, NDArray *)> StrUpdater</div><div class="ttdoc">the prototype of user-defined updater with string keys </div><div class="ttdef"><b>Definition:</b> kvstore.h:232</div></div> |
| <div class="ttc" id="namespacemxnet_html_a691b662ef3ae22904fc7d7d63db4c14ea583e1d2af95bc205bafe3341b26ea286"><div class="ttname"><a href="namespacemxnet.html#a691b662ef3ae22904fc7d7d63db4c14ea583e1d2af95bc205bafe3341b26ea286">mxnet::KVStoreServerProfilerCommand::kPause</a></div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a4ff4ca05f3c519ebbc2e46264e8b63dd"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a4ff4ca05f3c519ebbc2e46264e8b63dd">mxnet::KVStore::SendCommandToServers</a></div><div class="ttdeci">virtual void SendCommandToServers(int cmd_id, const std::string &cmd_body)</div><div class="ttdoc">Send a command to all server nodes. </div><div class="ttdef"><b>Definition:</b> kvstore.h:377</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_ad1023ca677c6e87ccc7d92c4df48bd40"><div class="ttname"><a href="classmxnet_1_1KVStore.html#ad1023ca677c6e87ccc7d92c4df48bd40">mxnet::KVStore::type_</a></div><div class="ttdeci">std::string type_</div><div class="ttdoc">the kvstore type </div><div class="ttdef"><b>Definition:</b> kvstore.h:427</div></div> |
| <div class="ttc" id="include_2mxnet_2ndarray_8h_html"><div class="ttname"><a href="include_2mxnet_2ndarray_8h.html">ndarray.h</a></div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a50db5cb1a140fb84c8e31def54270ae3"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a50db5cb1a140fb84c8e31def54270ae3">mxnet::KVStore::Controller</a></div><div class="ttdeci">std::function< void(int, const std::string &)> Controller</div><div class="ttdoc">the prototype of a server controller </div><div class="ttdef"><b>Definition:</b> kvstore.h:396</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a352ef7eae04211eca1ed47401a6d15d5"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a352ef7eae04211eca1ed47401a6d15d5">mxnet::KVStore::set_updater</a></div><div class="ttdeci">virtual void set_updater(const Updater &updater)</div><div class="ttdoc">set an updater </div><div class="ttdef"><b>Definition:</b> kvstore.h:242</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a1fd19b2a123b6069b35e1e8b7fad9dc3"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a1fd19b2a123b6069b35e1e8b7fad9dc3">mxnet::KVStore::get_group_size</a></div><div class="ttdeci">virtual int get_group_size() const </div><div class="ttdef"><b>Definition:</b> kvstore.h:341</div></div> |
| <div class="ttc" id="namespacemxnet_html_a691b662ef3ae22904fc7d7d63db4c14e"><div class="ttname"><a href="namespacemxnet.html#a691b662ef3ae22904fc7d7d63db4c14e">mxnet::KVStoreServerProfilerCommand</a></div><div class="ttdeci">KVStoreServerProfilerCommand</div><div class="ttdoc">enum to denote types of commands kvstore sends to server regarding profiler kSetConfig sets profiler ...</div><div class="ttdef"><b>Definition:</b> kvstore.h:49</div></div> |
| <div class="ttc" id="classmxnet_1_1KVStore_html_a101178924ce1d635b0c8c2a5bce0ceaf"><div class="ttname"><a href="classmxnet_1_1KVStore.html#a101178924ce1d635b0c8c2a5bce0ceaf">mxnet::KVStore::IsServerNode</a></div><div class="ttdeci">static bool IsServerNode()</div><div class="ttdef"><b>Definition:</b> kvstore.h:296</div></div> |
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