message: Cuda header sync
diff: #endif
  #if !((defined(MFEM_USE_CUDA) && defined(__CUDA_ARCH__)) || \
  - (defined(MFEM_USE_HIP) && defined(__ROCM_ARCH__)))
  + (defined(MFEM_USE_HIP) && defined(__HIP_DEVICE_COMPILE__)))
  #define MFEM_SHARED
  #define MFEM_SYNC_THREAD
  #define MFEM_THREAD_ID(k) 0
  