SYCL: UUID

This was implemented a couple months ago, but I didn't have time to check
the correctness until now.

Src/Base/AMReX_GpuDevice.cpp

@@ -319,7 +319,6 @@ Device::Initialize ()
 
 #elif defined(AMREX_USE_SYCL)
 
-#if 0
  auto const& d = *sycl_device;
  if (d.has(sycl::aspect::ext_intel_device_info_uuid)) {
  auto uuid = d.get_info<sycl::ext::intel::info::device::uuid>();
@@ -345,10 +344,20 @@ Device::Initialize ()
  }
  num_devices_used = uuid_counts.size();
  num_device_partners = uuid_counts[my_uuid];
- }
-#else
- num_device_partners = 1; // xxxxx SYCL: todo, also check memory available when implicit scaling is off.
+
+#if 0
+ for (int i = 0; i < ParallelDescriptor::NProcs(); ++i) {
+ if (i == ParallelDescriptor::MyProc()) {
+ std::cout << "Proc. " << i << ": |";
+ for (auto x : uuid) {
+ std::cout << std::hex << static_cast<unsigned int>(x) << "|";
+ }
+ std::cout << std::endl;;
+ }
+ ParallelDescriptor::Barrier();
+ }
 #endif
+ }
 
 #endif