170hx（any cmp hx card）can run higher and higher fp32 flops than before

[jetcat8848]

[jetcat8848]

i tried mod a OpenCL benchmark（disable fma to prevent GPU use it，the code like this：

diff --git a/src/lbm.cpp b/src/lbm.cpp index d99202f..28aeb25 100644 --- a/src/lbm.cpp +++ b/src/lbm.cpp @@ -286,6 +286,8 @@ void LBM_Domain::enqueue_unvoxelize_mesh_on_device(const Mesh* mesh, const uchar }

string LBM_Domain::device_defines() const { return

• "\n #pragma OPENCL FP_CONTRACT OFF" // prevents implicit FMA optimizations
• "\n #define fma(a, b, c) ((a) * (b) + (c))" // shadows OpenCL explicit function fma() "\n #define def_Nx "+to_string(Nx)+"u" "\n #define def_Ny "+to_string(Ny)+"u" "\n #define def_Nz "+to_string(Nz)+"u"

OK，the moded OpenCL benchmark runs，and the 170hx fp32 flops increased to 6.285 Tflops，the original fp32 flops just only 0.395Tflops，6.285/0.395=16，so，i think the nvidia driver prevented gpu use full speed on FMA！