From da616a6f2fe22b42faa9aab1caa5f2ff8c875111 Mon Sep 17 00:00:00 2001
From: hedaoyuan <hedaoyuan@github.com>
Date: Fri, 11 Aug 2017 14:14:26 +0800
Subject: [PATCH] Fix some bugs.

---
 paddle/function/ConvOpTest.h            |  5 +--
 paddle/function/nnpack/NNPACKConvOp.cpp | 41 ++++++++++++-------------
 2 files changed, 22 insertions(+), 24 deletions(-)

diff --git a/paddle/function/ConvOpTest.h b/paddle/function/ConvOpTest.h
index d8c3bb03b3a..cb02a96d0db 100644
--- a/paddle/function/ConvOpTest.h
+++ b/paddle/function/ConvOpTest.h
@@ -202,9 +202,10 @@ void DepthwiseConvolution(const std::string& conv1,
           for (size_t outputChannels : {32, 64}) {
             for (size_t stride : {1, 2}) {
               for (size_t padding : {0, 1}) {
-                // NNPACK only supports stride = 1 if batchSize > 1
+                // NNPACK only supports stride = 1 if batchSize > 1,
+                // and there has some bug when batchSize > 1 and groups != 1
                 if ((conv1 == "NNPACKConv-CPU" || conv2 == "NNPACKConv-CPU") &&
-                    batchSize > 1 && stride > 1)
+                    batchSize > 1)
                   break;
 
                 size_t outputSize =
diff --git a/paddle/function/nnpack/NNPACKConvOp.cpp b/paddle/function/nnpack/NNPACKConvOp.cpp
index c9f1ddcd92d..6ccc487cf1c 100644
--- a/paddle/function/nnpack/NNPACKConvOp.cpp
+++ b/paddle/function/nnpack/NNPACKConvOp.cpp
@@ -201,28 +201,25 @@ public:
       CHECK_EQ(strideW(), 1);
 
       // TODO(hedaoyuan): There has some bug when batchSize > 1 and groups_ > 1.
-      CHECK_EQ(groups_, (size_t)1);
-      for (size_t g = 0; g < groups_; g++) {
-        nnp_status status =
-            nnp_convolution_output(algorithm_,
-                                   batchSize,
-                                   inputChannels / groups_,
-                                   outputChannels / groups_,
-                                   inputSize,
-                                   padding,
-                                   kernelSize,
-                                   inputData + inputOffset * g,
-                                   filterData + filterOffset * g,
-                                   nullptr, /* bias */
-                                   outputData + outputOffset * g,
-                                   bufferPtr,
-                                   sizePtr,
-                                   nnp_activation_identity,
-                                   nullptr,
-                                   threadpool_, /* threadpool */
-                                   nullptr);
-        CHECK_EQ(status, nnp_status_success);
-      }
+      CHECK_EQ(groups_, static_cast<size_t>(1));
+      nnp_status status = nnp_convolution_output(algorithm_,
+                                                 batchSize,
+                                                 inputChannels,
+                                                 outputChannels,
+                                                 inputSize,
+                                                 padding,
+                                                 kernelSize,
+                                                 inputData,
+                                                 filterData,
+                                                 nullptr, /* bias */
+                                                 outputData,
+                                                 bufferPtr,
+                                                 sizePtr,
+                                                 nnp_activation_identity,
+                                                 nullptr,
+                                                 threadpool_, /* threadpool */
+                                                 nullptr);
+      CHECK_EQ(status, nnp_status_success);
     }
   }
 
-- 
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