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class="reference internal" href="device.html">设å¤(Device)</a></li> +<li class="toctree-l2"><a class="reference internal" href="tensor.html">å¼ é(Tensor)</a></li> +<li class="toctree-l2"><a class="reference internal" href="layer.html">å±(Layer)</a></li> +<li class="toctree-l2"><a class="reference internal" href="net.html">åé¦ç½ç»</a></li> +<li class="toctree-l2"><a class="reference internal" href="initializer.html">åå§åå¨(Initializer)</a></li> +<li class="toctree-l2"><a class="reference internal" href="loss.html">æ失(Loss)</a></li> +<li class="toctree-l2"><a class="reference internal" href="metric.html">度é(Metric)</a></li> +<li class="toctree-l2 current"><a class="current reference internal" href="#">ä¼åå¨(Optimizer)</a><ul> +<li class="toctree-l3"><a class="reference internal" href="#class-singa-optimizer-optimizer-lr-none-momentum-none-weight-decay-none-regularizer-none-constraint-none">class singa.optimizer.Optimizer(lr=None, momentum=None, weight_decay=None, regularizer=None, constraint=None)</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#register-name-specs">register(name, specs)</a></li> +<li class="toctree-l4"><a class="reference internal" href="#apply-regularizer-constraint-epoch-value-grad-name-none-step-1">apply_regularizer_constraint(epoch, value, grad, name=None, step=-1)</a></li> +<li class="toctree-l4"><a class="reference internal" href="#apply-with-lr-epoch-lr-grad-value-name-none-step-1">apply_with_lr(epoch, lr, grad, value, name=None, step=-1)</a></li> +<li class="toctree-l4"><a class="reference internal" href="#apply-epoch-grad-value-name-none-step-1">apply(epoch, grad, value, name=None, step=-1)</a></li> +</ul> +</li> +<li class="toctree-l3"><a class="reference internal" href="#class-singa-optimizer-sgd-lr-none-momentum-none-weight-decay-none-regularizer-none-constraint-none">class singa.optimizer.SGD(lr=None, momentum=None, weight_decay=None, regularizer=None, constraint=None)</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#apply-with-lr-epoch-lr-grad-value-name-step-1">apply_with_lr(epoch, lr, grad, value, name, step=-1)</a></li> +</ul> +</li> +<li class="toctree-l3"><a class="reference internal" href="#class-singa-optimizer-nesterov-lr-none-momentum-0-9-weight-decay-none-regularizer-none-constraint-none">class singa.optimizer.Nesterov(lr=None, momentum=0.9, weight_decay=None, regularizer=None, constraint=None)</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#apply-with-lr-epoch-lr-grad-value-name-step-1">apply_with_lr(epoch, lr, grad, value, name, step=-1)</a></li> +</ul> +</li> +<li class="toctree-l3"><a class="reference internal" href="#class-singa-optimizer-rmsprop-rho-0-9-epsilon-1e-08-lr-none-weight-decay-none-regularizer-none-constraint-none">class singa.optimizer.RMSProp(rho=0.9, epsilon=1e-08, lr=None, weight_decay=None, regularizer=None, constraint=None)</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#apply-with-lr-epoch-lr-grad-value-name-step-1">apply_with_lr(epoch, lr, grad, value, name, step=-1)</a></li> +</ul> +</li> +<li class="toctree-l3"><a class="reference internal" href="#class-singa-optimizer-adagrad-epsilon-1e-08-lr-none-weight-decay-none-lr-gen-none-regularizer-none-constraint-none">class singa.optimizer.AdaGrad(epsilon=1e-08, lr=None, weight_decay=None, lr_gen=None, regularizer=None, constraint=None)</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#apply-with-lr-epoch-lr-grad-value-name-step-1">apply_with_lr(epoch, lr, grad, value, name, step=-1)</a></li> +</ul> +</li> +<li class="toctree-l3"><a class="reference internal" href="#class-singa-optimizer-adam-beta-1-0-9-beta-2-0-999-epsilon-1e-08-lr-none-weight-decay-none-regularizer-none-constraint-none">class singa.optimizer.Adam(beta_1=0.9, beta_2=0.999, epsilon=1e-08, lr=None, weight_decay=None, regularizer=None, constraint=None)</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#apply-with-lr-epoch-lr-grad-value-name-step-1">apply_with_lr(epoch, lr, grad, value, name, step=-1)</a></li> +</ul> +</li> +<li class="toctree-l3"><a class="reference internal" href="#class-singa-optimizer-regularizer">class singa.optimizer.Regularizer</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#apply-epoch-value-grad-step-1">apply(epoch, value, grad, step=-1)</a></li> +</ul> +</li> +<li class="toctree-l3"><a class="reference internal" href="#class-singa-optimizer-cppregularizer-conf">class singa.optimizer.CppRegularizer(conf)</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#apply-epoch-value-grad-step-1">apply(epoch, value, grad, step=-1)</a></li> +</ul> +</li> +<li class="toctree-l3"><a class="reference internal" href="#class-singa-optimizer-l2regularizer-coefficient">class singa.optimizer.L2Regularizer(coefficient)</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#apply-epoch-value-grad-step-1">apply(epoch, value, grad, step=-1)</a></li> +</ul> +</li> +<li class="toctree-l3"><a class="reference internal" href="#class-singa-optimizer-constraint">class singa.optimizer.Constraint</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#apply-epoch-value-grad-step-1">apply(epoch, value, grad, step=-1)</a></li> +</ul> +</li> +<li class="toctree-l3"><a class="reference internal" href="#class-singa-optimizer-cppconstraint-conf">class singa.optimizer.CppConstraint(conf)</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#apply-epoch-value-grad-step-1">apply(epoch, value, grad, step=-1)</a></li> +</ul> +</li> +<li class="toctree-l3"><a class="reference internal" href="#class-singa-optimizer-l2constraint-threshold-none">class singa.optimizer.L2Constraint(threshold=None)</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#apply-epoch-value-grad-step-1">apply(epoch, value, grad, step=-1)</a></li> +</ul> +</li> +</ul> +</li> +<li class="toctree-l2"><a 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class="wy-breadcrumbs-aside"> + + + + </li> + + </ul> + + + <hr/> +</div> + <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article";> + <div itemprop="articleBody"> + + <div class="section" id="optimizer"> +<span id="optimizer"></span><h1>ä¼åå¨(Optimizer)<a class="headerlink" href="#optimizer" title="Permalink to this headline">¶</a></h1> +<p>è¿ä¸ªæ¨¡åå å«ä¸ç³»åç¨äºæ¨¡ååæ°æ´æ°çä¼åå¨ã</p> +<p>示ä¾ç¨æ³ï¼</p> +<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">singa</span> <span class="kn">import</span> <span class="n">optimizer</span> +<span class="kn">from</span> <span class="nn">singa</span> <span class="kn">import</span> <span class="n">tensor</span> + +<span class="n">sgd</span> <span class="o">=</span> <span class="n">optimizer</span><span class="o">.</span><span class="n">SGD</span><span class="p">(</span><span class="n">lr</span><span class="o">=</span><span class="mf">0.01</span><span class="p">,</span> <span class="n">momentum</span><span class="o">=</span><span class="mf">0.9</span><span class="p">,</span> <span class="n">weight_decay</span><span class="o">=</span><span class="mf">1e-4</span><span class="p">)</span> +<span class="n">p</span> <span class="o">=</span> <span class="n">tensor</span><span class="o">.</span><span class="n">Tensor</span><span class="p">((</span><span class="mi">3</span><span class="p">,</span><span class="mi">5</span><span class="p">))</span> +<span class="n">p</span><span class="o">.</span><span class="n">uniform</span><span class="p">(</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span> +<span class="n">g</span> <span class="o">=</span> <span class="n">tensor</span><span class="o">.</span><span class="n">Tensor</span><span class="p">((</span><span class="mi">3</span><span class="p">,</span><span class="mi">5</span><span class="p">))</span> +<span class="n">g</span><span class="o">.</span><span class="n">gaussian</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mf">0.01</span><span class="p">)</span> + +<span class="n">sgd</span><span class="o">.</span><span class="n">apply</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="n">g</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="s1">'param'</span><span class="p">)</span> <span class="c1"># use the global lr=0.1 for epoch 1</span> +<span class="n">sgd</span><span class="o">.</span><span class="n">apply_with_lr</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mf">0.03</span><span class="p">,</span> <span class="n">g</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="s1">'param'</span><span class="p">)</span> <span class="c1"># use lr=0.03 for epoch 2</span> +</pre></div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-optimizer-optimizer-lr-none-momentum-none-weight-decay-none-regularizer-none-constraint-none"> +<span id="class-singa-optimizer-optimizer-lr-none-momentum-none-weight-decay-none-regularizer-none-constraint-none"></span><h2>class singa.optimizer.Optimizer(lr=None, momentum=None, weight_decay=None, regularizer=None, constraint=None)<a class="headerlink" href="#class-singa-optimizer-optimizer-lr-none-momentum-none-weight-decay-none-regularizer-none-constraint-none" title="Permalink to this headline">¶</a></h2> +<p>åºç±»ï¼<code class="docutils literal notranslate"><span class="pre">object</span></code></p> +<p>Pythonä¼åå¨ç±»çåºç±»ã +å ¸åå°ï¼ä¼åå¨æå¦ä¸ä½ç¨ï¼</p> +<ol class="simple"> +<li>æ建ä¼åå¨</li> +<li>ï¼å¯éï¼ä»¥åæ°å为注åæ¯ç§åæ°</li> +<li>使ç¨ä¼åå¨ä¾ç §ç»å®åæ°æ¢¯åº¦åå ¶ä»ä¿¡æ¯æ´æ°åæ°å¼</li> +</ol> +<p>å®çåç±»åºè¯¥éåapply_with_lrå½æ°å·²ç¨äºçå®çåæ°æ´æ°ã</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>lr (float)</strong> â å¦ä¹ éç</li> +<li><strong>momentum (float)</strong> â å¨é</li> +<li><strong>weight_decay (float)</strong> â L2æ£ååç³»æ°ï¼è¢«æé¤äºâregularizerâä¹å¤</li> +<li><strong>regularizer</strong> â RegularizeræRegularizerConfå®ä¾ï¼å¦è¢«è®¾ç½®ï¼æ£ååå°è¢«ç¨äºapply_with_lr()ã ç¨æ·ä¹å¯ä»¥å¨ä¼åå¨å¤é¨åæ£ååã</li> +<li><strong>constraint</strong> â ConstraintæConstraintConfå®ä¾ï¼å¦è¢«è®¾ç½®ï¼æ£ååå°è¢«ç¨äºapply_with_lr()ã ç¨æ·ä¹å¯ä»¥å¨ä¼åå¨å¤é¨åæ£ååã</li> +</ul> +<hr class="docutils" /> +<div class="section" id="register-name-specs"> +<span id="register-name-specs"></span><h3>register(name, specs)<a class="headerlink" href="#register-name-specs" title="Permalink to this headline">¶</a></h3> +<p>注ååæ°ï¼å æ¬ä¸ºæ¯ä¸ªåæ°å¯¹è±¡å建æ£ååå约ææ¡ä»¶ã è¿éåæ°ç¹å®çæ£ååå约ææ¯å ¨å±è®¾ç½®ææ´é«ä¼å 级ã å¦æææåæ°å¯¹äºå¦ä¹ éçãæ£è§åå¨å约ææ¡ä»¶å ±äº«ç¸åç设置ï¼åä¸éè¦è°ç¨è¯¥å½æ°ã</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>name (str)</strong> â åæ°å</li> +<li><strong>specs (ParamSpec)</strong> â protobuf对象ï¼å æ¬æ£ååå约ææ¡ä»¶ãå¦ä¹ éçåæå¼è¡°åä¹åã</li> +</ul> +</div> +<hr class="docutils" /> +<div class="section" id="apply-regularizer-constraint-epoch-value-grad-name-none-step-1"> +<span id="apply-regularizer-constraint-epoch-value-grad-name-none-step-1"></span><h3>apply_regularizer_constraint(epoch, value, grad, name=None, step=-1)<a class="headerlink" href="#apply-regularizer-constraint-epoch-value-grad-name-none-step-1" title="Permalink to this headline">¶</a></h3> +<p>å¦æå¯ç¨ï¼å°éç¨æ£ååå约ææ¡ä»¶ã å¦æå ¨å±æ£ååååæ°ç¹å®çæ£ååé½åå¨ï¼ä¼éç¨åæ°ç¹å®çæ£ååã</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>epoch (int)</strong> â è®ç»çepoch ID ï¼å®æ´è®ç»ä¸éè®ç»æ°æ®ç§°ä¸ºä¸ä¸ªepochï¼</li> +<li><strong>value (Tensor)</strong> â åæ°Tensor</li> +<li><strong>grad (Tensor)</strong> â åæ°æ¢¯åº¦Tensor</li> +<li><strong>name (string)</strong> â åæ°å以索å¼å°ç¹å®çè§åï¼æ£ååæ约ææ¡ä»¶ï¼</li> +<li><strong>step (int)</strong> â æ¯ä¸ªepochå çè¿ä»£ID</li> +</ul> +<p><strong>è¿åå¼ï¼</strong> æ´æ°åç梯度tensor</p> +</div> +<hr class="docutils" /> +<div class="section" id="apply-with-lr-epoch-lr-grad-value-name-none-step-1"> +<span id="apply-with-lr-epoch-lr-grad-value-name-none-step-1"></span><h3>apply_with_lr(epoch, lr, grad, value, name=None, step=-1)<a class="headerlink" href="#apply-with-lr-epoch-lr-grad-value-name-none-step-1" title="Permalink to this headline">¶</a></h3> +<p>å¦ægradé空ï¼åæ ¹æ®ç»å®å¦ä¹ éçæ´æ°åæ°ã</p> +<p>åç±»ä¼åå¨å¿ é¡»éåè¿ä¸ªå½æ°ãå¦ægrad为空ï¼å°ä¸åä»»ä½æä½ã</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>epoch (int)</strong> â è®ç»çepoch ID ï¼å®æ´è®ç»ä¸éè®ç»æ°æ®ç§°ä¸ºä¸ä¸ªepochï¼</li> +<li><strong>lr (float)</strong> â å¦ä¹ éç</li> +<li><strong>value (Tensor)</strong> â åæ°Tensor</li> +<li><strong>grad (Tensor)</strong> â åæ°æ¢¯åº¦Tensor</li> +<li><strong>name (string)</strong> â åæ°å以索å¼å°ç¹å®çè§åï¼æ£ååæ约ææ¡ä»¶ï¼</li> +<li><strong>step (int)</strong> â æ¯ä¸ªepochå çè¿ä»£ID +<strong>è¿åå¼ï¼</strong> æ´æ°åçåæ°å¼</li> +</ul> +</div> +<hr class="docutils" /> +<div class="section" id="apply-epoch-grad-value-name-none-step-1"> +<span id="apply-epoch-grad-value-name-none-step-1"></span><h3>apply(epoch, grad, value, name=None, step=-1)<a class="headerlink" href="#apply-epoch-grad-value-name-none-step-1" title="Permalink to this headline">¶</a></h3> +<p>å设å¦ä¹ éççæå¨é ç½®å®æï¼å®æåæ°æ´æ°ã åç±»ä¸éè¦éåè¿ä¸ªå½æ°ã</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>epoch (int)</strong> â è®ç»çepoch ID ï¼å®æ´è®ç»ä¸éè®ç»æ°æ®ç§°ä¸ºä¸ä¸ªepochï¼</li> +<li><strong>value (Tensor)</strong> â åæ°Tensor</li> +<li><strong>grad (Tensor)</strong> â åæ°æ¢¯åº¦Tensor</li> +<li><strong>name (string)</strong> â åæ°å以索å¼å°ç¹å®çè§åï¼æ£ååæ约ææ¡ä»¶ï¼</li> +<li><strong>step (int)</strong> â æ¯ä¸ªepochå çè¿ä»£ID</li> +</ul> +<p><strong>è¿åå¼ï¼</strong> æ´æ°åçåæ°å¼</p> +</div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-optimizer-sgd-lr-none-momentum-none-weight-decay-none-regularizer-none-constraint-none"> +<span id="class-singa-optimizer-sgd-lr-none-momentum-none-weight-decay-none-regularizer-none-constraint-none"></span><h2>class singa.optimizer.SGD(lr=None, momentum=None, weight_decay=None, regularizer=None, constraint=None)<a class="headerlink" href="#class-singa-optimizer-sgd-lr-none-momentum-none-weight-decay-none-regularizer-none-constraint-none" title="Permalink to this headline">¶</a></h2> +<p>åºç±»ï¼<code class="docutils literal notranslate"><span class="pre">singa.optimizer.Optimizer</span></code></p> +<p>åå§çå å«å¨éçéæºæ¢¯åº¦ä¸éç®æ³ã åæ°è¯¦è§Optimizeråºç±»ã</p> +<div class="section" id="apply-with-lr-epoch-lr-grad-value-name-step-1"> +<span id="apply-with-lr-epoch-lr-grad-value-name-step-1"></span><h3>apply_with_lr(epoch, lr, grad, value, name, step=-1)<a class="headerlink" href="#apply-with-lr-epoch-lr-grad-value-name-step-1" title="Permalink to this headline">¶</a></h3> +</div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-optimizer-nesterov-lr-none-momentum-0-9-weight-decay-none-regularizer-none-constraint-none"> +<span id="class-singa-optimizer-nesterov-lr-none-momentum-0-9-weight-decay-none-regularizer-none-constraint-none"></span><h2>class singa.optimizer.Nesterov(lr=None, momentum=0.9, weight_decay=None, regularizer=None, constraint=None)<a class="headerlink" href="#class-singa-optimizer-nesterov-lr-none-momentum-0-9-weight-decay-none-regularizer-none-constraint-none" title="Permalink to this headline">¶</a></h2> +<p>åºç±»ï¼<code class="docutils literal notranslate"><span class="pre">singa.optimizer.Optimizer</span></code></p> +<p>å å«Nesterovå¨éçéæºæ¢¯åº¦ä¸éç®æ³ãåæ°è¯¦è§Optimizeråºç±»ã</p> +<div class="section" id="apply-with-lr-epoch-lr-grad-value-name-step-1"> +<span id="id1"></span><h3>apply_with_lr(epoch, lr, grad, value, name, step=-1)<a class="headerlink" href="#apply-with-lr-epoch-lr-grad-value-name-step-1" title="Permalink to this headline">¶</a></h3> +</div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-optimizer-rmsprop-rho-0-9-epsilon-1e-08-lr-none-weight-decay-none-regularizer-none-constraint-none"> +<span id="class-singa-optimizer-rmsprop-rho-0-9-epsilon-1e-08-lr-none-weight-decay-none-regularizer-none-constraint-none"></span><h2>class singa.optimizer.RMSProp(rho=0.9, epsilon=1e-08, lr=None, weight_decay=None, regularizer=None, constraint=None)<a class="headerlink" href="#class-singa-optimizer-rmsprop-rho-0-9-epsilon-1e-08-lr-none-weight-decay-none-regularizer-none-constraint-none" title="Permalink to this headline">¶</a></h2> +<p>åºç±»ï¼<code class="docutils literal notranslate"><span class="pre">singa.optimizer.Optimizer</span></code></p> +<p>RMSPropä¼åå¨ãæé å¨åæ°è¯·åèOptimizeråºç±»ã</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>rho (float)</strong> â [0, 1]é´çæµ®ç¹æ°</li> +<li><strong>epsilon (float)</strong> â å¾å°çå¼ï¼ä»¥é¿å æ°å¼è¯¯å·®</li> +</ul> +<div class="section" id="apply-with-lr-epoch-lr-grad-value-name-step-1"> +<span id="id2"></span><h3>apply_with_lr(epoch, lr, grad, value, name, step=-1)<a class="headerlink" href="#apply-with-lr-epoch-lr-grad-value-name-step-1" title="Permalink to this headline">¶</a></h3> +</div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-optimizer-adagrad-epsilon-1e-08-lr-none-weight-decay-none-lr-gen-none-regularizer-none-constraint-none"> +<span id="class-singa-optimizer-adagrad-epsilon-1e-08-lr-none-weight-decay-none-lr-gen-none-regularizer-none-constraint-none"></span><h2>class singa.optimizer.AdaGrad(epsilon=1e-08, lr=None, weight_decay=None, lr_gen=None, regularizer=None, constraint=None)<a class="headerlink" href="#class-singa-optimizer-adagrad-epsilon-1e-08-lr-none-weight-decay-none-lr-gen-none-regularizer-none-constraint-none" title="Permalink to this headline">¶</a></h2> +<p>åºç±»ï¼<code class="docutils literal notranslate"><span class="pre">singa.optimizer.Optimizer</span></code></p> +<p>AdaGradä¼åå¨ãæé å¨åæ°è¯·åèOptimizeråºç±»ã</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>epsilon (float)</strong> â å¾å°çå¼ï¼ä»¥é¿å æ°å¼è¯¯å·®</li> +</ul> +<div class="section" id="apply-with-lr-epoch-lr-grad-value-name-step-1"> +<span id="id3"></span><h3>apply_with_lr(epoch, lr, grad, value, name, step=-1)<a class="headerlink" href="#apply-with-lr-epoch-lr-grad-value-name-step-1" title="Permalink to this headline">¶</a></h3> +</div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-optimizer-adam-beta-1-0-9-beta-2-0-999-epsilon-1e-08-lr-none-weight-decay-none-regularizer-none-constraint-none"> +<span id="class-singa-optimizer-adam-beta-1-0-9-beta-2-0-999-epsilon-1e-08-lr-none-weight-decay-none-regularizer-none-constraint-none"></span><h2>class singa.optimizer.Adam(beta_1=0.9, beta_2=0.999, epsilon=1e-08, lr=None, weight_decay=None, regularizer=None, constraint=None)<a class="headerlink" href="#class-singa-optimizer-adam-beta-1-0-9-beta-2-0-999-epsilon-1e-08-lr-none-weight-decay-none-regularizer-none-constraint-none" title="Permalink to this headline">¶</a></h2> +<p>åºç±»ï¼<code class="docutils literal notranslate"><span class="pre">singa.optimizer.Optimizer</span></code></p> +<p>Adaä¼åå¨ãæé å¨åæ°è¯·åèOptimizeråºç±»ã</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>beta_1 (float)</strong> â å¨éç³»æ°</li> +<li><strong>beta_2 (float)</strong> â æ´åç梯度平æ¹çç³»æ°</li> +<li><strong>epsilon (float)</strong> â å¾å°çå¼ï¼ä»¥é¿å æ°å¼è¯¯å·®</li> +</ul> +<div class="section" id="apply-with-lr-epoch-lr-grad-value-name-step-1"> +<span id="id4"></span><h3>apply_with_lr(epoch, lr, grad, value, name, step=-1)<a class="headerlink" href="#apply-with-lr-epoch-lr-grad-value-name-step-1" title="Permalink to this headline">¶</a></h3> +<p>æ´æ°ä¸ä¸ªåæ°å¯¹è±¡</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>step (int)</strong> â 累积è®ç»è¿ä»£æ°ï¼èä¸æ¯å½åè¿ä»£ID</li> +</ul> +</div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-optimizer-regularizer"> +<span id="class-singa-optimizer-regularizer"></span><h2>class singa.optimizer.Regularizer<a class="headerlink" href="#class-singa-optimizer-regularizer" title="Permalink to this headline">¶</a></h2> +<p>åºç±»ï¼<code class="docutils literal notranslate"><span class="pre">object</span></code></p> +<p>Pythonåæ°æ¢¯åº¦æ£ååçåºç±»ã</p> +<div class="section" id="apply-epoch-value-grad-step-1"> +<span id="apply-epoch-value-grad-step-1"></span><h3>apply(epoch, value, grad, step=-1)<a class="headerlink" href="#apply-epoch-value-grad-step-1" title="Permalink to this headline">¶</a></h3> +</div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-optimizer-cppregularizer-conf"> +<span id="class-singa-optimizer-cppregularizer-conf"></span><h2>class singa.optimizer.CppRegularizer(conf)<a class="headerlink" href="#class-singa-optimizer-cppregularizer-conf" title="Permalink to this headline">¶</a></h2> +<p>åºç±»ï¼<code class="docutils literal notranslate"><span class="pre">singa.optimizer.Regularizer</span></code></p> +<p>æ£ååçå°è£ 使ç¨C++å®ç°ã</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>conf (RegularizerConf)</strong> â protobufé 置信æ¯</li> +</ul> +<div class="section" id="apply-epoch-value-grad-step-1"> +<span id="id5"></span><h3>apply(epoch, value, grad, step=-1)<a class="headerlink" href="#apply-epoch-value-grad-step-1" title="Permalink to this headline">¶</a></h3> +</div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-optimizer-l2regularizer-coefficient"> +<span id="class-singa-optimizer-l2regularizer-coefficient"></span><h2>class singa.optimizer.L2Regularizer(coefficient)<a class="headerlink" href="#class-singa-optimizer-l2regularizer-coefficient" title="Permalink to this headline">¶</a></h2> +<p>åºç±»ï¼<code class="docutils literal notranslate"><span class="pre">singa.optimizer.Regularizer</span></code></p> +<p>L2æ£ååã</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>coefficient (float)</strong> â æ£ååç³»æ°</li> +</ul> +<div class="section" id="apply-epoch-value-grad-step-1"> +<span id="id6"></span><h3>apply(epoch, value, grad, step=-1)<a class="headerlink" href="#apply-epoch-value-grad-step-1" title="Permalink to this headline">¶</a></h3> +</div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-optimizer-constraint"> +<span id="class-singa-optimizer-constraint"></span><h2>class singa.optimizer.Constraint<a class="headerlink" href="#class-singa-optimizer-constraint" title="Permalink to this headline">¶</a></h2> +<p>åºç±»ï¼<code class="docutils literal notranslate"><span class="pre">object</span></code></p> +<p>Pythonåæ°æ¢¯åº¦çº¦æçåºç±»ã</p> +<div class="section" id="apply-epoch-value-grad-step-1"> +<span id="id7"></span><h3>apply(epoch, value, grad, step=-1)<a class="headerlink" href="#apply-epoch-value-grad-step-1" title="Permalink to this headline">¶</a></h3> +</div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-optimizer-cppconstraint-conf"> +<span id="class-singa-optimizer-cppconstraint-conf"></span><h2>class singa.optimizer.CppConstraint(conf)<a class="headerlink" href="#class-singa-optimizer-cppconstraint-conf" title="Permalink to this headline">¶</a></h2> +<p>åºç±»ï¼<code class="docutils literal notranslate"><span class="pre">singa.optimizer.Constraint</span></code></p> +<p>约æçå°è£ 使ç¨C++å®ç°ã</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>conf (RegularizerConf)</strong> â protobufé 置信æ¯</li> +</ul> +<div class="section" id="apply-epoch-value-grad-step-1"> +<span id="id8"></span><h3>apply(epoch, value, grad, step=-1)<a class="headerlink" href="#apply-epoch-value-grad-step-1" title="Permalink to this headline">¶</a></h3> +</div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-optimizer-l2constraint-threshold-none"> +<span id="class-singa-optimizer-l2constraint-threshold-none"></span><h2>class singa.optimizer.L2Constraint(threshold=None)<a class="headerlink" href="#class-singa-optimizer-l2constraint-threshold-none" title="Permalink to this headline">¶</a></h2> +<p>åºç±»ï¼<code class="docutils literal notranslate"><span class="pre">singa.optimizer.Constraint</span></code></p> +<p>梯度缩æ¾ä½¿å¾L2 normå°äºç»å®éå¼ã</p> +<div class="section" id="apply-epoch-value-grad-step-1"> +<span id="id9"></span><h3>apply(epoch, value, grad, step=-1)<a class="headerlink" href="#apply-epoch-value-grad-step-1" title="Permalink to this headline">¶</a></h3> +<hr class="docutils" /> +</div> +</div> +</div> + + + </div> + + </div> + <footer> + + <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> + + <a href="data.html" class="btn btn-neutral float-right" title="æ°æ®(Data)" accesskey="n" rel="next">Next <span class="fa 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class="toctree-l3"><a class="reference internal" href="#class-singa-snapshot-snapshot-f-mode-buffer-size-10">class singa.snapshot.Snapshot(f, mode, buffer_size=10)</a><ul> +<li class="toctree-l4"><a class="reference internal" href="#read">read()</a></li> +<li class="toctree-l4"><a class="reference internal" href="#write-param-name-param-val">write(param_name, param_val)</a></li> +</ul> +</li> +</ul> +</li> +<li class="toctree-l2"><a class="reference internal" href="utils.html">Utils</a></li> +<li class="toctree-l2"><a class="reference internal" href="model_zoo/index.html">模ååº</a></li> +</ul> +</li> +</ul> +<p class="caption"><span class="caption-text">å¼å</span></p> +<ul> +<li class="toctree-l1"><a class="reference internal" href="../develop/schedule.html">å¼åæ¶é´è¡¨</a></li> +<li class="toctree-l1"><a class="reference internal" href="../develop/how-contribute.html">å¦ä½è´¡ç®ç» SINGA</a></li> +<li class="toctree-l1"><a class="reference internal" href="../develop/contribute-code.html">å¦ä½è´¡ç®ä»£ç </a></li> +</ul> +<p class="caption"><span class="caption-text">社åº</span></p> +<ul> +<li class="toctree-l1"><a class="reference internal" href="../community/source-repository.html">æºä»£ç åº</a></li> +<li class="toctree-l1"><a class="reference internal" href="../community/mail-lists.html">项ç®é®ä»¶å表</a></li> +<li class="toctree-l1"><a class="reference internal" href="../community/issue-tracking.html">é®é¢è¿½è¸ª</a></li> +<li class="toctree-l1"><a class="reference internal" href="../community/team-list.html">SINGAå¢é</a></li> +</ul> + + + + </div> + </div> + </nav> + + <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> + + + <nav class="wy-nav-top" aria-label="top navigation"> + + <i data-toggle="wy-nav-top" class="fa fa-bars"></i> + <a href="../index.html">incubator-singa</a> + + </nav> + + + <div class="wy-nav-content"> + + <div class="rst-content"> + + + + + + + + + + + + + + + + + +<div role="navigation" aria-label="breadcrumbs navigation"> + + <ul class="wy-breadcrumbs"> + + <li><a href="../index.html">Docs</a> »</li> + + <li><a href="index.html">ææ¡£</a> »</li> + + <li>Snapshot</li> + + + <li class="wy-breadcrumbs-aside"> + + + + </li> + + </ul> + + + <hr/> +</div> + <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article";> + <div itemprop="articleBody"> + + <div class="section" id="snapshot"> +<span id="snapshot"></span><h1>Snapshot<a class="headerlink" href="#snapshot" title="Permalink to this headline">¶</a></h1> +<p>æ¤æ¨¡åå å«io::snapshotç±»åå ¶æ¹æ³ã</p> +<p>示ä¾ç¨æ³ï¼</p> +<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">singa</span> <span class="kn">import</span> <span class="n">snapshot</span> + +<span class="n">sn1</span> <span class="o">=</span> <span class="n">snapshot</span><span class="o">.</span><span class="n">Snapshot</span><span class="p">(</span><span class="s1">'param'</span><span class="p">,</span> <span class="bp">False</span><span class="p">)</span> +<span class="n">params</span> <span class="o">=</span> <span class="n">sn1</span><span class="o">.</span><span class="n">read</span><span class="p">()</span> <span class="c1"># read all params as a dictionary</span> + +<span class="n">sn2</span> <span class="o">=</span> <span class="n">snapshot</span><span class="o">.</span><span class="n">Snapshot</span><span class="p">(</span><span class="s1">'param_new'</span><span class="p">,</span> <span class="bp">False</span><span class="p">)</span> +<span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">params</span><span class="o">.</span><span class="n">iteritems</span><span class="p">():</span> + <span class="n">sn2</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">k</span><span class="p">,</span> <span class="n">v</span><span class="p">)</span> +</pre></div> +</div> +<hr class="docutils" /> +<div class="section" id="class-singa-snapshot-snapshot-f-mode-buffer-size-10"> +<span id="class-singa-snapshot-snapshot-f-mode-buffer-size-10"></span><h2>class singa.snapshot.Snapshot(f, mode, buffer_size=10)<a class="headerlink" href="#class-singa-snapshot-snapshot-f-mode-buffer-size-10" title="Permalink to this headline">¶</a></h2> +<p><code class="docutils literal notranslate"><span class="pre">singa::Snapshot</span></code>ç±»åæåå½æ°ã</p> +<hr class="docutils" /> +<div class="section" id="read"> +<span id="read"></span><h3>read()<a class="headerlink" href="#read" title="Permalink to this headline">¶</a></h3> +<p>è°ç¨readæ¹æ³å è½½ææä¿¡æ¯ï¼åæ°åï¼åæ°å¼ï¼ã</p> +<p><strong>è¿åå¼ï¼</strong> ï¼åæ°åï¼åæ°å¼ï¼çåå ¸</p> +</div> +<hr class="docutils" /> +<div class="section" id="write-param-name-param-val"> +<span id="write-param-name-param-val"></span><h3>write(param_name, param_val)<a class="headerlink" href="#write-param-name-param-val" title="Permalink to this headline">¶</a></h3> +<p>è°ç¨writeæ¹æ³åååæ°ã</p> +<p><strong>åæ°ï¼</strong></p> +<ul class="simple"> +<li><strong>param_name (string)</strong> â åæ°å</li> +<li><strong>param_val (Tensor)</strong> â åæ°å¼çtensor</li> +</ul> +<hr class="docutils" /> +</div> +</div> +</div> + + + </div> + + </div> + <footer> + + <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> + + <a href="utils.html" class="btn btn-neutral float-right" title="Utils" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a> + + + <a href="image_tool.html" class="btn btn-neutral" title="å¾åå·¥å ·" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a> + + </div> + + + <hr/> + + <div role="contentinfo"> + <p> + © Copyright 2018 The Apache Software Foundation. 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+</ul> + + + + </div> + </div> + </nav> + + <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> + + + <nav class="wy-nav-top" aria-label="top navigation"> + + <i data-toggle="wy-nav-top" class="fa fa-bars"></i> + <a href="../index.html">incubator-singa</a> + + </nav> + + + <div class="wy-nav-content"> + + <div class="rst-content"> + + + + + + + + + + + + + + + + + +<div role="navigation" aria-label="breadcrumbs navigation"> + + <ul class="wy-breadcrumbs"> + + <li><a href="../index.html">Docs</a> »</li> + + <li><a href="index.html">ææ¡£</a> »</li> + + <li>软件æ¶æ</li> + + + <li class="wy-breadcrumbs-aside"> + + + + </li> + + </ul> + + + <hr/> +</div> + <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article";> + <div itemprop="articleBody"> + + <div class="section" id=""> +<span id="id1"></span><h1>软件æ¶æ<a class="headerlink" href="#" title="Permalink to this headline">¶</a></h1> +<p>SINGAç软件æ¶æå æ¬ä¸ä¸ªä¸»è¦é¨åï¼å³æ ¸å¿ï¼Coreï¼ï¼è¾å ¥è¾åºï¼IOï¼å模åï¼Modelï¼ã å¾1éè¿°äºè¿äºç»ä»¶ä»¥å硬件ãæ ¸å¿é¨åæä¾äºå å管çåå¼ éæä½ï¼è¾å ¥è¾åºå æ¬ä»ï¼åï¼ç£çåç½ç»è¯»åï¼åå ¥ï¼çç±»ï¼æ¨¡åé¨å为æºå¨å¦ä¹ 模åæä¾æ°æ®ç»æåç®æ³æ¯æï¼æ¯å¦ç¨äºç¥ç»ç½ç»æ¨¡åçå±ï¼ç¨äºéç¨æºå¨å¦ä¹ 模åçä¼åå¨/åå§å/度é/æ失å½æ°çã</p> +<p><img src="../_static/images/singav1-sw.png" align="center" width="500px"/> +<br/> +<span><strong>Figure 1 - SINGA V1 software stack.</strong></span></p> +<div class="section" id=""> +<span id="id2"></span><h2>æ ¸å¿<a class="headerlink" href="#" title="Permalink to this headline">¶</a></h2> +<p>å¼ é(<a class="reference external" href="tensor.html">Tensor</a>)å设å¤(<a class="reference external" href="device.html">Device</a>)æ¯SINGAçä¸¤ä¸ªæ ¸å¿æ½è±¡ç±»ã Tensor代表äºä¸ä¸ªå¤ç»´æ°ç»ï¼åå¨äºæ¨¡åçåé并ä¸ä¸ºæºå¨å¦ä¹ ç®æ³æä¾çº¿æ§ä»£æ°çæä½ï¼è¿äºæä½å æ¬ç©éµä¹æ³åéæºå½æ°ãæ¯ä¸ªTensorå®ä¾è¢«åé å¨ä¸ä¸ªè®¾å¤å®ä¾ä¸ã æ¯ä¸ªDeviceå®ä¾è¢«å建å¨ä¸å°ç¡¬ä»¶è®¾å¤ä¸ï¼å¦GPUæCPUæ ¸ä¸ã设å¤ç±»ç¨äºç®¡çå¼ éæå ç¨çå å以åå¨æ§è¡åå ä¸æ§è¡å¼ éæä½ï¼æ¯å¦CPU线ç¨æ CUDAæµã</p> +<p>ä¾èµäºç¡¬ä»¶åç¼ç¨è¯è¨ï¼SINGAå®ç°äºä»¥ä¸ç¹å®ç设å¤ç±»ï¼</p> +<ul class="simple"> +<li><strong>CudaGPU</strong> 代表ä¸ä¸ªNvidia GPUã æ§è¡åå æ¯CUDAæµã</li> +<li><strong>CppCPU</strong> 代表ä¸ä¸ªCPUã æ§è¡åå æ¯CPU线ç¨ã</li> +<li><strong>OpenclGPU</strong> 代表NvidiaåAMDçGPUãæ§è¡åå æ¯CommandQueuesãOpenCLåå¾å¤ç¡¬ä»¶è®¾å¤å ¼å®¹ï¼æ¯å¦FPGAåARMï¼æ以OpenclGPUå¯ä»¥æ©å±å°å ¶ä»è®¾å¤ä¸ã</li> +</ul> +<p>ä¸åç±»åç设å¤ä½¿ç¨ä¸åç¼ç¨è¯è¨ä¹¦åç¨äºå¼ éæä½çæ ¸å½æ°ï¼</p> +<ul class="simple"> +<li>CppMath (tensor_math_cpp.h) ç¨Cppå®ç°äºCppCPUçå¼ éæä½</li> +<li>CudaMath (tensor_math_cuda.h) ç¨CUDAå®ç°äºCudaGPUçå¼ éæä½</li> +<li>OpenclMath (tensor_math_opencl.h) ç¨OpenCLå®ç°äºOpenclGPUçå¼ éæä½</li> +</ul> +<p>å¦å¤ï¼ä¸åç±»åçæ°æ®ï¼æ¯å¦float32åfloat16,å¯ä»¥éè¿å å ¥ç¸åºçå¼ éå½æ°æ¥æ¯æã</p> +<p>å ¸åå°ï¼ç¨æ·å°å建ä¸ä¸ªDeviceå®ä¾å¹¶æå®ä¼ ç»å¤ä¸ªTensorå®ä¾ã å½ç¨æ·è°ç¨Tensorå½æ°æ¶ï¼è¿äºå½æ°ä¼èªå¨å¤èµ·å¯¹åºçå®ç°(CppMath/CudaMath/OpenclMath)ã æ¢å¥è¯è¯´ï¼Tensoræä½çå®ç°å¯¹ç¨æ·æ¯éæçã</p> +<p>大å¤æ°æºå¨å¦ä¹ 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æ¬Uniform,Gaussianççã</li> +<li><a class="reference external" href="loss.html">Loss</a>åå®çåç±»å®ä¹äºè®ç»ç®æ æ失å½æ°ãä¸ç®æ æ失对åºç计ç®æ失å¼å计ç®æ¢¯åº¦çå½æ°é½å·²è¢«å®ç°ã 常è§çæ失å½æ°å æ¬å¹³æ¹å·®å交åçµã</li> +<li><a class="reference external" href="metric.html">Metric</a>åå®çåç±»æä¾äºè¯ä¼°æ¨¡åæ§è½çå½æ°ï¼æ¯å¦ç²¾ç¡®åº¦ã</li> +<li><a class="reference external" href="optimizer.html">Optimizer</a>åå®çåç±»å®ç°äºå¦ä½å©ç¨åæ°æ¢¯åº¦æ´æ°æ¨¡ååæ°çæ¹æ³ï¼å æ¬SGD, AdaGrad, RMSPropççã</li> +</ul> +</div> +<div class="section" id=""> +<span id="id4"></span><h2>è¾å ¥è¾åº<a class="headerlink" href="#" title="Permalink to this headline">¶</a></h2> +<p>è¾å ¥è¾åºå å«æ°æ®å è½½ï¼æ°æ®é¢å¤çåä¿¡æ¯ä¼ éç±»ã</p> +<ul class="simple"> +<li>Readeråå®çåç±»ä»ç£çæ件å è½½å符串记å½</li> +<li>Writeråå®çåç±»å°å符串记å½åå°ç£çæ件ä¸</li> +<li>Encoderåå®çåç±»å°Tensorå®ä¾ç¼è¯æå符串记å½</li> +<li>Decoderåå®çåç±»å°å符串记å½è§£ç 为Tensorå®ä¾</li> +<li>Endpoint代表为æ¶æ¯ä¼ éæä¾å½æ°ç交äºç»ç«¯</li> +<li>Message代表Endpointå®ä¾é´ç交äºæ¶æ¯ãå®ä¼ä¼ éå æ°æ®åè´è½½</li> 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