diff --git a/openmp/libomptarget/DeviceRTL/src/Parallelism.cpp b/openmp/libomptarget/DeviceRTL/src/Parallelism.cpp
--- a/openmp/libomptarget/DeviceRTL/src/Parallelism.cpp
+++ b/openmp/libomptarget/DeviceRTL/src/Parallelism.cpp
@@ -54,12 +54,6 @@
   if (NThreadsICV != 0 && NThreadsICV < NumThreads)
     NumThreads = NThreadsICV;
 
-  // Round down to a multiple of WARPSIZE since it is legal to do so in OpenMP.
-  if (NumThreads < mapping::getWarpSize())
-    NumThreads = 1;
-  else
-    NumThreads = (NumThreads & ~((uint32_t)mapping::getWarpSize() - 1));
-
   return NumThreads;
 }