CUTLASS 2.1 (#83)

CUTLASS 2.1 contributes:
- BLAS-style host-side API added to CUTLASS Library
- Planar Complex GEMM kernels targeting Volta and Turing Tensor Cores
- Minor enhancements and bug fixes

include/cutlass/real.h

@@ -30,6 +30,10 @@ namespace cutlass {
 template <typename T>
 struct RealType {
   using Type = T;
+
+  static T from_real(double x) {
+    return static_cast<T>(x);
+  }
 };
 
 template <typename T>
@@ -38,4 +42,5 @@ static T from_real(double r) {
   return T(r);
 }
 
+
 } // namespace cutlass