figure-batch-generation-method.tex

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	\node[font=\scriptsize,anchor=east] (line2) at (node10.west) {gpu2};
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	\node[font=\scriptsize,anchor=north] (legend1) at ([xshift=3em]node4.south) {一步一更新};
	\node[font=\scriptsize,anchor=north] (legend2) at ([xshift=2.5em]node12.south) {累积两步更新};
	\node[font=\scriptsize,anchor=north] (time1) at (grad2.south) {time};
	\node[font=\scriptsize,anchor=north] (time1) at (grad3.south) {time};

	\node[legend] (legend3) at (2em,2em) {};
	\node[font=\scriptsize,anchor=west] (idle) at (legend3.east) {:空闲};
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	\node[font=\scriptsize,anchor=west] (FB) at (legend4.east) {:前向/反向};
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	\node[font=\scriptsize,anchor=west] (grad_sync) at (legend5.east) {:梯度更新};

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