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Python NervanaGPU.maximum方法代碼示例

本文整理匯總了Python中nervanagpu.NervanaGPU.maximum方法的典型用法代碼示例。如果您正苦於以下問題:Python NervanaGPU.maximum方法的具體用法?Python NervanaGPU.maximum怎麽用?Python NervanaGPU.maximum使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在nervanagpu.NervanaGPU的用法示例。


在下文中一共展示了NervanaGPU.maximum方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Python代碼示例。

示例1: GPU

# 需要導入模塊: from nervanagpu import NervanaGPU [as 別名]
# 或者: from nervanagpu.NervanaGPU import maximum [as 別名]

#.........這裏部分代碼省略.........
            bpropbuf (GPUTensor): Temporary storage buffer used to hold the
                                  backpropagated error for a single receptive
                                  field
        """
        op = op.lower()
        if op == "max":
            self.ng.bprop_pool(layer=bpropbuf, I=inputs, E=deltas, grad_I=out,
                               repeat=1)
        else:
            raise AttributeError("unexpected pooling op type: %s", op)

    def logistic(self, x, out):
        """
        Logistic sigmoid nonlinearity, 1/(1+exp(-x))

        Arguments:
            x (GPUTensor): Input tensor
            out (GPUTensor): Output tensor

        """
        self.ng.sig(x, out=out)

        return out

    def rectlin(self, x, out):
        """
        Rectified Linear nonlinearity

        Arguments:
            x (GPUTensor): Input tensor
            out (GPUTensor): Output tensor

        """
        self.ng.maximum(x, 0., out=out)
        return out

    def rectleaky(self, x, slope, out):
        out[:] = self.ng.maximum(x, x*slope)

    def rectleaky_derivative(self, x, slope, out):
        out[:] = self.ng.greater(x, 0) * (1.0 - slope) + slope

    def sum(self, tsr, axes, out):
        """
        Sum

        Arguments:
            tsr  (GPUTensor): Input tensor
            axes (int): Axis along which the reduction is performed. If axes
                        is None,  the tensor is flattened and reduced over
                        both dimensions.
            out (GPUTensor): Output tensor
        """
        if axes is None:
            sze = tsr.shape[0]*tsr.shape[1]
            self.ng.sum(tsr.reshape(sze, 1), axis=0, out=out)
        else:
            self.ng.sum(tsr, axis=axes, out=out)
        return out

    def mean(self, tsr, axes, out):
        """
        Calculates the arithmetic mean of the elements along the specified
        axes.

        Arguments:
開發者ID:YouVentures,項目名稱:neon,代碼行數:70,代碼來源:gpu.py


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