diff --git a/CUDAStream.cu b/CUDAStream.cu
index 21d36fa..802bb05 100644
--- a/CUDAStream.cu
+++ b/CUDAStream.cu
@@ -42,7 +42,7 @@ CUDAStream<T>::CUDAStream(const unsigned int ARRAY_SIZE, const int device_index)
   check_error();
 
   // Print out device information
-  std::cout << "Using OpenCL device " << getDeviceName(device_index) << std::endl;
+  std::cout << "Using CUDA device " << getDeviceName(device_index) << std::endl;
   std::cout << "Driver: " << getDeviceDriver(device_index) << std::endl;
 
   array_size = ARRAY_SIZE;
diff --git a/OCLStream.cpp b/OCLStream.cpp
index 50ad543..0ed4b8e 100644
--- a/OCLStream.cpp
+++ b/OCLStream.cpp
@@ -78,7 +78,18 @@ OCLStream<T>::OCLStream(const unsigned int ARRAY_SIZE, const int device_index)
     // Check device can do double
     if (!device.getInfo<CL_DEVICE_DOUBLE_FP_CONFIG>())
       throw std::runtime_error("Device does not support double precision, please use --float");
-    program.build("-DTYPE=double");
+    try
+    {
+      program.build("-DTYPE=double");
+    }
+    catch (cl::Error& err)
+    {
+      if (err.err() == CL_BUILD_PROGRAM_FAILURE)
+      {
+        std::cout << program.getBuildInfo<CL_PROGRAM_BUILD_LOG>()[0].second << std::endl;
+        throw err;
+      }
+    }
   }
   else if (sizeof(T) == sizeof(float))
     program.build("-DTYPE=float");
diff --git a/SYCLStream.cpp b/SYCLStream.cpp
index d039d70..d4a2fd0 100644
--- a/SYCLStream.cpp
+++ b/SYCLStream.cpp
@@ -11,7 +11,7 @@
 
 using namespace cl::sycl;
 
-#define WGSIZE 64
+#define WGSIZE 256
 
 // Cache list of devices
 bool cached = false;