From d833ab3493c83a10f32f5c5012875d4aba807b56 Mon Sep 17 00:00:00 2001
From: Jonathan L Long <jonlong@cs.berkeley.edu>
Date: Fri, 12 Sep 2014 16:07:34 -0700
Subject: [PATCH] check that LRN's local_size is odd as the current
 implementation requires

---
 src/caffe/layers/lrn_layer.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/caffe/layers/lrn_layer.cpp b/src/caffe/layers/lrn_layer.cpp
index 55b7673..d9e41e9 100644
--- a/src/caffe/layers/lrn_layer.cpp
+++ b/src/caffe/layers/lrn_layer.cpp
@@ -10,6 +10,7 @@ template <typename Dtype>
 void LRNLayer<Dtype>::LayerSetUp(const vector<Blob<Dtype>*>& bottom,
       vector<Blob<Dtype>*>* top) {
   size_ = this->layer_param_.lrn_param().local_size();
+  CHECK_EQ(size_ % 2, 1) << "LRN only supports odd values for local_size";
   pre_pad_ = (size_ - 1) / 2;
   alpha_ = this->layer_param_.lrn_param().alpha();
   beta_ = this->layer_param_.lrn_param().beta();
-- 
2.7.4