Merge pull request #100 from UoB-HPC/issue-98

Add check for FP64 support

CHANGELOG.md

@@ -13,6 +13,7 @@ All notable changes to this project will be documented in this file.
 - Support for CUDA Managed Memory and Page Fault memory.
 - Added nstream kernel from PRK with associate command line option.
 - CMake build system added for all models.
+- SYCL device check for FP64 support.
 
 ### Changed
 - Default branch renamed from `master` to `main`.

SYCLStream.cpp

@@ -28,6 +28,14 @@ SYCLStream<T>::SYCLStream(const int ARRAY_SIZE, const int device_index)
     throw std::runtime_error("Invalid device index");
   device dev = devices[device_index];
 
+  // Check device can support FP64 if needed
+  if (sizeof(T) == sizeof(double))
+  {
+    if (dev.get_info<info::device::double_fp_config>().size() == 0) {
+      throw std::runtime_error("Device does not support double precision, please use --float");
+    }
+  }
+
   // Determine sensible dot kernel NDRange configuration
   if (dev.is_cpu())
   {