Fix Clang Cuda flags

[alexxy/gromacs.git] / cmake / gmxManageClangCudaConfig.cmake

diff --git a/cmake/gmxManageClangCudaConfig.cmake b/cmake/gmxManageClangCudaConfig.cmake
index a2b0927d977382991b0e168d37184a0a7ada9ce1..c68dce68534aee8fff3660ed3eafd0681444a45c 100644 (file)
--- a/cmake/gmxManageClangCudaConfig.cmake
+++ b/cmake/gmxManageClangCudaConfig.cmake
@@ -80,7 +80,7 @@ if (GMX_CUDA_TARGET_SM)
 endif()
 
 # default flags
-list(APPEND _CUDA_CLANG_FLAGS "-x cuda" "-ffast-math")
+list(APPEND _CUDA_CLANG_FLAGS "-x cuda" "-ffast-math" "-fcuda-flush-denormals-to-zero")
 # Workaround for clang>=9 (Bug 45533). No CUDA file uses OpenMP.
 list(APPEND _CUDA_CLANG_FLAGS "-fno-openmp")
 # CUDA toolkit