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class="headerlink" href="#openmpi" title="永久链接至标题">¶</a></h2> <p>执行下面的命令以启动3个节点的OpenMPI集群和一个”head”节点:</p> <div class="highlight-bash"><div class="highlight"><pre><span></span>paddle/scripts/cluster_train_v2/openmpi/docker_cluster kubectl create -f head.yaml kubectl create -f mpi-nodes.yaml </pre></div> </div> <p>然后可以从head节点ssh无密码登录到OpenMPI的每个节点上。</p> </div> <div class="section" id=""> <span id="id2"></span><h2>启动集群作业<a class="headerlink" href="#" title="永久链接至标题">¶</a></h2> <p>您可以按照下面的步骤在OpenMPI集群中提交paddle训练任务:</p> <div class="highlight-bash"><div class="highlight"><pre><span></span><span class="c1"># 获得head和node节点的IP地址</span> kubectl get po -o wide <span class="c1"># 将node节点的IP地址保存到machines文件中</span> kubectl get po -o wide <span class="p">|</span> grep nodes <span class="p">|</span> awk <span class="s1">'{print $6}'</span> > machines <span class="c1"># 拷贝必要的文件到head节点</span> scp -i ssh/id_rsa.mpi.pub machines prepare.py train.py start_mpi_train.sh tutorial@<span class="o">[</span>headIP<span class="o">]</span>:~ <span class="c1"># ssh 登录到head节点</span> ssh -i ssh/id_rsa.mpi.pub tutorial@<span class="o">[</span>headIP<span class="o">]</span> <span class="c1"># --------------- 以下操作均在head节点中执行 ---------------</span> <span class="c1"># 准备训练数据</span> python prepare.py <span class="c1"># 拷贝训练程序和字典文件到每台MPI节点</span> cat machines <span class="p">|</span> xargs -i scp word_dict.pickle train.py start_mpi_train.sh machines <span class="o">{}</span>:/home/tutorial <span class="c1"># 创建日志目录</span> mpirun -hostfile machines -n <span class="m">3</span> mkdir /home/tutorial/logs <span class="c1"># 拷贝训练数据到各自的节点</span> scp train.txt-00000 test.txt-00000 <span class="o">[</span>node1IP<span class="o">]</span>:/home/tutorial scp train.txt-00001 test.txt-00001 <span class="o">[</span>node2IP<span class="o">]</span>:/home/tutorial scp train.txt-00002 test.txt-00002 <span class="o">[</span>node3IP<span class="o">]</span>:/home/tutorial <span class="c1"># 启动训练任务</span> mpirun -hostfile machines -n <span class="m">3</span> /home/tutorial/start_mpi_train.sh </pre></div> </div> </div> </div> </div> </div> <footer> <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> <a href="k8s_cn.html" class="btn btn-neutral float-right" title="Kubernetes单机训练" accesskey="n">Next <span class="fa fa-arrow-circle-right"></span></a> <a href="fabric_cn.html" class="btn btn-neutral" title="使用fabric启动集群训练" accesskey="p"><span class="fa fa-arrow-circle-left"></span> Previous</a> </div> <hr/> <div role="contentinfo"> <p> © Copyright 2016, PaddlePaddle developers. </p> </div> Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. </footer> </div> </div> </section> </div> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT:'../../../', VERSION:'', COLLAPSE_INDEX:false, FILE_SUFFIX:'.html', 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