First commit

1 files changed, 46 insertions, 0 deletions

diff --git a/src/CuTNetLib/cuActivation.cc b/src/CuTNetLib/cuActivation.cc
new file mode 100644
index 0000000..bd57ae5
--- /dev/null
+++ b/src/CuTNetLib/cuActivation.cc
@@ -0,0 +1,46 @@
+
+#include "cuActivation.h"
+#include "cumath.h"
+
+
+namespace TNet {
+
+
+  void
+  CuSigmoid::
+  PropagateFnc(const CuMatrix<BaseFloat>& X, CuMatrix<BaseFloat>& Y)
+  {
+    CuMath<BaseFloat>::Sigmoid(Y, X);
+  }
+
+
+  void 
+  CuSigmoid::
+  BackpropagateFnc(const CuMatrix<BaseFloat>& X, CuMatrix<BaseFloat>& Y)
+  {
+    CuMath<BaseFloat>::DiffSigmoid(Y, X, mOutput);
+  }
+
+
+
+  void 
+  CuSoftmax::
+  PropagateFnc(const CuMatrix<BaseFloat>& X, CuMatrix<BaseFloat>& Y)
+  {
+    CuMath<BaseFloat>::Softmax(Y,X);
+  }
+
+   
+   
+  void
+  CuSoftmax::
+  BackpropagateFnc(const CuMatrix<BaseFloat>& X, CuMatrix<BaseFloat>& Y)
+  {
+    //we assume X is already dE/dSoftmax_input
+    Y.CopyFrom(X);
+  }
+
+
+
+} //namespace
+