Comment on the synchronous nature of prefix

gevtushenko · May 25, 2023 · 4f2a61e · 4f2a61e
1 parent e94f1cc
commit 4f2a61e
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/examples/device/example_device_decoupled_look_back.cu b/examples/device/example_device_decoupled_look_back.cu
@@ -75,6 +75,8 @@ __global__ void decoupled_look_back_kernel(cub::ScanTileState<MessageT> tile_sta
 
     if (warp_id == 0)
     {
+      // Perform the decoupled look-back
+      // Invocation of the prefix will block until the look-back is complete.
       MessageT exclusive_prefix = prefix(block_aggregate);
 
       if (tid == 0)