Fix problem with single precision GPU Version

Both real and complex single-precision GPU versions are fixed now.
This closses issue #8

src/ev_tridi_band_gpu_c_v2_complex_template.Xcu

@@ -66,19 +66,19 @@ static __device__ __forceinline__ double shfl_xor_double(double r, int mask)
 static __device__ __forceinline__ float shfl_xor_single(float r, int mask)
 #endif
 {
-#ifdef DOUBLE_PRECISION_COMPLEX
+//#ifdef DOUBLE_PRECISION_COMPLEX
     int hi = __shfl_xor(__double2hiint(r), mask);
     int lo = __shfl_xor(__double2loint(r), mask);
 
     return __hiloint2double(hi, lo);
-#else
+//#else
 //    int hi = __shfl_xor(__float2hiint(r), mask);
 //    int lo = __shfl_xor(__float2loint(r), mask);
-    int hi;
-    int lo;
+//    int hi;
+//    int lo;
     //exit(1);
     //return __hiloint2float(hi, lo);
-#endif
+//#endif
 }
 
 #if 0
@@ -111,20 +111,20 @@ static __device__ __forceinline__ double shfl_down_double(double r, int offset)
 static __device__ __forceinline__ float shfl_down_single(float r, int offset)
 #endif
 {
-#ifdef DOUBLE_PRECISION_COMPLEX
+//#ifdef DOUBLE_PRECISION_COMPLEX
     int hi = __shfl_down(__double2hiint(r), offset);
     int lo = __shfl_down(__double2loint(r), offset);
 
     return __hiloint2double(hi, lo);
-#else
-    //int hi = __shfl_down(__float2hiint(r), offset);
-    //int lo = __shfl_down(__float2loint(r), offset);
-
-    //return __hiloint2float(hi, lo);
-    int hi;
-    int lo;
-    //exit(1);
-#endif
+//#else
+//    //int hi = __shfl_down(__float2hiint(r), offset);
+  //  //int lo = __shfl_down(__float2loint(r), offset);
+
+   // //return __hiloint2float(hi, lo);
+   // int hi;
+   // int lo;
+   // //exit(1);
+//#endif
 }
 
 #ifdef DOUBLE_PRECISION_COMPLEX
@@ -374,6 +374,19 @@ __device__ __forceinline__ void float_warp_reduce_complex_single(cuFloatComplex
     }
 }
 
+#ifndef ALREADY_DEFINED_SYNC
+// Synchronization wrapper, removing explicit synchronization when the thread-block is at most 32 threads (1 warp) in size
+template <bool MUST_SYNC>
+__device__ __forceinline__ void sync_threads()
+{
+    if (MUST_SYNC)
+    {
+        __syncthreads();
+    }
+}
+#define ALREADY_DEFINED_SYNC 1
+#endif
+
 // Reset the entire contents of a shared reduction block; the thread block size must be a power-of-2
 #ifdef DOUBLE_PRECISION_COMPLEX
 __device__ __forceinline__ void reset_dotp_buffers_double(double * const __restrict__ s_block)

src/ev_tridi_band_gpu_c_v2_real_template.Xcu

@@ -76,18 +76,18 @@ static __device__ __forceinline__ cuDoubleComplex  shfl_xor_complex(cuDoubleComp
 }
 #endif
 
-#ifndef ALREADY_DEFINED_SYNC
-// Synchronization wrapper, removing explicit synchronization when the thread-block is at most 32 threads (1 warp) in size
-template <bool MUST_SYNC>
-__device__ __forceinline__ void sync_threads()
-{
-    if (MUST_SYNC)
-    {
-        __syncthreads();
-    }
-}
-#define ALREADY_DEFINED_SYNC 1
-#endif
+//#ifndef ALREADY_DEFINED_SYNC
+//// Synchronization wrapper, removing explicit synchronization when the thread-block is at most 32 threads (1 warp) in size
+//template <bool MUST_SYNC>
+//__device__ __forceinline__ void sync_threads()
+//{
+//    if (MUST_SYNC)
+//    {
+//        __syncthreads();
+//    }
+//}
+//#define ALREADY_DEFINED_SYNC 1
+//#endif
 
 // =========================
 // Backtransformation kernel