diff --git a/src/TNL/Algorithms/Segments/details/CSRAdaptiveKernelParameters.h b/src/TNL/Algorithms/Segments/details/CSRAdaptiveKernelParameters.h
index 0f00fbd808772b14bb11e85951566730c766e310..843f2f7d52d56e9aab89fcc63b06b1b1f936384b 100644
--- a/src/TNL/Algorithms/Segments/details/CSRAdaptiveKernelParameters.h
+++ b/src/TNL/Algorithms/Segments/details/CSRAdaptiveKernelParameters.h
@@ -15,6 +15,8 @@ namespace TNL {
       namespace Segments {
          namespace details {
 
+// This can be used for tunning the number of CUDA threads per block depending on the size of Value
+// TODO: Perform some tests
 static constexpr int CSRAdaptiveKernelParametersCudaBlockSizes[] = { 256, 256, 256, 256, 256, 256 };
 
 template< int SizeOfValue = 1,