hot fix log (PaddlePaddle#14293)

test=develop
tianshuo78520a · Nov 7, 2018 · ffc8661 · ffc8661
1 parent 65b61db
commit ffc8661
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/paddle/fluid/operators/math/cross_entropy.cu b/paddle/fluid/operators/math/cross_entropy.cu
@@ -28,7 +28,7 @@ __device__ __forceinline__ double real_log(double x) { return log(x); }
 
 __device__ __forceinline__ platform::float16 real_log(
     const platform::float16& val) {
-  return static_cast<platform::float16>(hlog(static_cast<half>(val)));
+  return static_cast<platform::float16>(logf(static_cast<float>(val)));
 }
 
 template <typename T>