Added a check to return 'NotImplemented' error code in case of systems with < 16 LWGS for TSRV and TRSM

1 files changed, 5 insertions, 0 deletions

diff --git a/src/routines/levelx/xinvert.cpp b/src/routines/levelx/xinvert.cpp
index d851e0b9..65a28d73 100644
--- a/src/routines/levelx/xinvert.cpp
+++ b/src/routines/levelx/xinvert.cpp
@@ -49,6 +49,11 @@ void Xinvert<T>::InvertMatrixDiagonalBlocks(const Layout layout, const Triangle
     throw BLASError(StatusCode::kInvalidDimension);
   }
 
+  // Some parts of this kernel are not tunable and thus require some minimal OpenCL properties
+  if (device_.MaxWorkGroupSize() < 16) { // minimum of total local work size of 16
+    throw RuntimeErrorCode(StatusCode::kNotImplemented);
+  }
+
   // Helper variables
   const auto internal_block_size = static_cast<size_t>(db_["INTERNAL_BLOCK_SIZE"]);
   assert(internal_block_size == 16);