Display CUB and CUDNN paths (if defined) in BuildInfo

Print BuildInfo at the very begining of the program. convenient for checking
build type.

Source/CNTK/CNTK.cpp

@@ -345,6 +345,9 @@ void PrintBuiltInfo()
 #ifdef _CUB_PATH_
     fprintf(stderr, "\t\tCUB_PATH: %s\n", _CUB_PATH_);
 #endif 
+#ifdef _CUDNN_PATH_
+    fprintf(stderr, "\t\tCUDNN_PATH: %s\n", _CUDNN_PATH_);
+#endif
 #ifdef _GIT_EXIST
     fprintf(stderr, "\t\tBuild Branch: %s\n", _BUILDBRANCH_);
     fprintf(stderr, "\t\tBuild SHA1: %s\n", _BUILDSHA1_);
@@ -568,7 +571,7 @@ int wmainOldCNTKConfig(int argc, wchar_t* argv[])   // called from wmain which i
         RedirectStdErr(logpath);
     }
 
-    PrintBuiltInfo();
+    PrintBuiltInfo(); // this one goes to log file 
     std::string timestamp = TimeDateStamp();
 
     //dump config info
@@ -643,10 +646,11 @@ int wmainOldCNTKConfig(int argc, wchar_t* argv[])   // called from wmain which i
 // main wrapper that catches C++ exceptions and prints them
 // ---------------------------------------------------------------------------
 
-int wmain1(int argc, wchar_t* argv[])   // called from wmain which is a wrapper that catches & repots Win32 exceptions
+int wmain1(int argc, wchar_t* argv[])   // called from wmain which is a wrapper that catches & reports Win32 exceptions
 {
     try
     {
+        PrintBuiltInfo(); // print build info directly in case that user provides zero argument (convenient for checking build type)
         if (argc <= 1)
             InvalidArgument("No command-line argument given.");
         // detect legacy CNTK configuration

Source/CNTK/prebuild.bat

@@ -33,6 +33,16 @@ if "%cuda_path%" == "" (
         echo #define _CUDA_PATH_    "%cuda_path:\=\\%" >> buildinfo.h$$
     )
 
+if not "%cudnn_path%" == "" (
+    echo #define _CUDNN_PATH_  "%cudnn_path:\=\\%" >> buildinfo.h$$
+    ) 
+
+if not "%cub_path%" == "" (
+    echo #define _CUB_PATH_  "%cub_path:\=\\%" >> buildinfo.h$$
+    ) 
+
+
+
 echo #endif >> buildinfo.h$$
 
 ::: update file only if it changed (otherwise CNTK.cpp will get rebuilt each time)

Tools/generate_build_info

@@ -56,6 +56,9 @@ makebuildinfo()
 	if [ ! -z "$CUB_PATH" ]; then 
 		printf "#define _CUB_PATH_ \"%s\"\n"  $CUB_PATH  >> $target
 	fi
+    if [ ! -z "$CUDNN_PATH" ]; then 
+        printf "#define _CUDNN_PATH_ \"%s\"\n"  $CUDNN_PATH  >> $target
+    fi
 	printf "#define _BUILDTYPE_ \"%s\"\n" $BUILDTYPE    	>> 	$target
 	printf "#endif\n" 					>>	$target
 }