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paddle/gserver/tests/test_LayerGrad.cpp

@@ -43,22 +43,14 @@ TEST(Layer, BilinearInterpLayer) {
 
   bilinear->set_img_size_x(32);
   bilinear->set_img_size_y(32);
-  bilinear->set_out_size_x(64);
-  bilinear->set_out_size_y(64);
   bilinear->set_num_channels(4);
 
   for (auto useGpu : {false, true}) {
+    for (auto out_size : {32, 64, 128}) {
+      bilinear->set_out_size_x(out_size);
+      bilinear->set_out_size_y(out_size);
       testLayerGrad(config, "bilinear_interp", 10, false, useGpu);
     }
-
-  bilinear->set_img_size_x(32);
-  bilinear->set_img_size_y(32);
-  bilinear->set_out_size_x(32);
-  bilinear->set_out_size_y(32);
-  bilinear->set_num_channels(4);
-
-  for (auto useGpu : {false, true}) {
-    testLayerGrad(config, "bilinear_interp", 10, false, useGpu);
   }
 }
 

paddle/math/Matrix.cpp

@@ -3902,6 +3902,8 @@ void CpuMatrix::bilinearForward(const Matrix& in,
   size_t batchSize = getHeight();
   size_t inputW = in.getWidth();
   size_t inputH = in.getHeight();
+  size_t inPosOffset = inImgH * inImgW;
+  size_t outPosOffset = outImgH * outImgW;
   (void)(inputH);
 
   real* outData = getData();
@@ -3931,8 +3933,8 @@ void CpuMatrix::bilinearForward(const Matrix& in,
               h2lambda * (w2lambda * inPos[0] + w1lambda * inPos[wid]) +
               h1lambda * (w2lambda * inPos[hid * inImgW] +
               w1lambda * inPos[hid * inImgW + wid]);
-            inPos += inImgH * inImgW;
-            outPos += outImgH * outImgW;
+            inPos += inPosOffset;
+            outPos += outPosOffset;
           }
         }
       }
@@ -3954,6 +3956,8 @@ void CpuMatrix::bilinearBackward(const Matrix& out,
   size_t inputH = getHeight();
   size_t outputW = out.getWidth();
   size_t batchSize = out.getHeight();
+  size_t inPosOffset = inImgH * inImgW;
+  size_t outPosOffset = outImgH * outImgW;
   (void)(inputH);
 
   real* inGrad = getData();
@@ -3981,8 +3985,8 @@ void CpuMatrix::bilinearBackward(const Matrix& out,
             inPos[wid] += h2lambda * w1lambda * outPos[0];
             inPos[hid * inImgW] += h1lambda * w2lambda * outPos[0];
             inPos[hid * inImgW + wid] += h1lambda * w1lambda * outPos[0];
-            inPos += inImgH * inImgW;
-            outPos += outImgH * outImgW;
+            inPos += inPosOffset;
+            outPos += outPosOffset;
           }
         }
       }