diff --git a/paddle/cuda/include/hl_matrix.h b/paddle/cuda/include/hl_matrix.h
index a37921b7493e34068369ef23032da0401b5c23d0..c7f25109972195fb56b9e96c4b68d952363e6338 100644
--- a/paddle/cuda/include/hl_matrix.h
+++ b/paddle/cuda/include/hl_matrix.h
@@ -241,7 +241,7 @@ extern void hl_matrix_rotate(
  * @param[in]   paddingD   padding in the depth.
  * @param[in]   paddingH   padding in the height.
  * @param[in]   paddingW   padding in the width.
- * @param[out]   matDst     output matrix.
+ * @param[out]   dataDst     output matrix.
  *
  */
 extern void hl_matrix_vol2Col(const real* dataSrc,
diff --git a/paddle/gserver/layers/Conv3DLayer.cpp b/paddle/gserver/layers/Conv3DLayer.cpp
index db907bbab1c283bb0ff4679410d8f03619aeb911..7cc9937cce37cbbc4640fbb88312841c23b757c0 100644
--- a/paddle/gserver/layers/Conv3DLayer.cpp
+++ b/paddle/gserver/layers/Conv3DLayer.cpp
@@ -53,18 +53,12 @@ bool Conv3DLayer::init(const LayerMap &layerMap,
 
 size_t Conv3DLayer::getSize() {
   CHECK_NE(inputLayers_.size(), 0UL);
-  // imgSizeH_.clear();
-  // imgSizeW_.clear();
-  // imgSizeD_.clear();
   outputH_.clear();
   outputW_.clear();
   outputD_.clear();
   N_.clear();
   size_t layerSize = 0;
   for (size_t i = 0; i < inputLayers_.size(); ++i) {
-    // imgSizeH_.push_back(inputLayers_[i]->getOutput().getFrameHeight());
-    // imgSizeW_.push_back(inputLayers_[i]->getOutput().getFrameWidth());
-    // imgSizeD_.push_back(inputLayers_[i]->getOutput().getFrameDepth());
     outputW_.push_back(outputSize(
         imgSizeW_[i], filterSize_[i], padding_[i], stride_[i], true));
     outputH_.push_back(outputSize(
diff --git a/paddle/gserver/layers/DeConv3DLayer.cpp b/paddle/gserver/layers/DeConv3DLayer.cpp
index b18c06e36c897ac1f0e2850562c9afade7c7dcc2..7d5c772c89d260264a59f4cc4439bb8a44c605a4 100644
--- a/paddle/gserver/layers/DeConv3DLayer.cpp
+++ b/paddle/gserver/layers/DeConv3DLayer.cpp
@@ -53,9 +53,6 @@ bool DeConv3DLayer::init(const LayerMap &layerMap,
 
 size_t DeConv3DLayer::getSize() {
   CHECK_NE(inputLayers_.size(), 0UL);
-  // imgSizeH_.clear();
-  // imgSizeW_.clear();
-  // imgSizeD_.clear();
   outputH_.clear();
   outputW_.clear();
   outputD_.clear();
@@ -63,9 +60,6 @@ size_t DeConv3DLayer::getSize() {
   NOut_.clear();
   size_t layerSize = 0;
   for (size_t i = 0; i < inputLayers_.size(); ++i) {
-    // imgSizeH_.push_back(inputLayers_[i]->getOutput().getFrameHeight());
-    // imgSizeW_.push_back(inputLayers_[i]->getOutput().getFrameWidth());
-    // imgSizeD_.push_back(inputLayers_[i]->getOutput().getFrameDepth());
     outputW_.push_back(
         imageSize(imgSizeW_[i], filterSize_[i], padding_[i], stride_[i], true));
     outputH_.push_back(imageSize(