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---
title: Reduction Layer
---
# Reduction Layer
* Layer type: `Reduction`
* [Doxygen Documentation](http://caffe.berkeleyvision.org/doxygen/classcaffe_1_1ReductionLayer.html)
* Header: [`./include/caffe/layers/reduction_layer.hpp`](https://github.com/BVLC/caffe/blob/master/include/caffe/layers/reduction_layer.hpp)
* CPU implementation: [`./src/caffe/layers/reduction_layer.cpp`](https://github.com/BVLC/caffe/blob/master/src/caffe/layers/reduction_layer.cpp)
* CUDA GPU implementation: [`./src/caffe/layers/reduction_layer.cu`](https://github.com/BVLC/caffe/blob/master/src/caffe/layers/reduction_layer.cu)
## Parameters
* Parameters (`ReductionParameter reduction_param`)
* From [`./src/caffe/proto/caffe.proto`](https://github.com/BVLC/caffe/blob/master/src/caffe/proto/caffe.proto):
{% highlight Protobuf %}
{% include proto/ReductionParameter.txt %}
{% endhighlight %}