Fixed bfp16 host_conv_fwd (#52)

* fixed bfloat16 issues

* refactor type_convert

* fixed host_convolution_forward for ushort
Co-authored-by: Chao Liu <chao.liu2@amd.com>

host/driver_offline/src/conv_fwd_driver_offline.cpp

@@ -97,7 +97,7 @@ void host_convolution_forward(const Tensor<TIn>& in,
 
         if constexpr(is_same<TOut, ushort>::value)
         {
-            out(n, k, ho, wo) = type_convert<ushort>(v);
+            out(n, k, ho, wo) = ck::type_convert<ushort>(static_cast<float>(v));
         }
         else
         {
@@ -134,7 +134,7 @@ void host_convolution_forward(const Tensor<TIn>& in,
         }
         if constexpr(is_same<TOut, ushort>::value)
         {
-            out(n, ho, wo, k) = ck::type_convert<ushort>(v);
+            out(n, ho, wo, k) = ck::type_convert<ushort>(static_cast<float>(v));
         }
         else
         {
@@ -257,7 +257,7 @@ int main(int argc, char* argv[])
     using in_data_t  = float;
     using acc_data_t = float;
     using out_data_t = float;
-#elif 0
+#elif 1
     using in_data_t   = half_t;
     using acc_data_t  = float;
     using out_data_t  = half_t;

host/driver_offline/src/gemm_driver_offline.cpp

@@ -239,14 +239,10 @@ int main(int argc, char* argv[])
     using ab_data_t  = float;
     using acc_data_t = float;
     using c_data_t   = float;
-#elif 0
+#elif 1
     using ab_data_t  = half_t;
     using acc_data_t = float;
     using c_data_t   = half_t;
-#elif 1
-    using ab_data_t  = ushort;
-    using acc_data_t = float;
-    using c_data_t   = ushort;
 #elif 1
     using ab_data_t  = int8_t;
     using acc_data_t = int32_t;