faster logsigmoid

format
sony · May 23, 2019 · df15127 · df15127
1 parent 3cb68ed
commit df15127
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/src/nbla/cuda/function/generic/log_sigmoid.cu b/src/nbla/cuda/function/generic/log_sigmoid.cu
@@ -22,7 +22,6 @@
 #include <cmath>
 
 namespace nbla {
-NBLA_DEFINE_TRANSFORM_UNARY_CUDA(LogSigmoid,
-                                 std::log((T)1 / (std::exp(-x) + (T)1)),
+NBLA_DEFINE_TRANSFORM_UNARY_CUDA(LogSigmoid, -std::log(std::exp(-x) + (T)1),
                                  (T)1 / (std::exp(x) + (T)1));
 }