LLVM Clang 3.8 OpenMP SVN Benchmarks

Benchmarks by Michael Larabel for a future article on Phoronix testing out Clang OpenMP against GCC compilers on Linux x86-64.

HTML result view exported from: https://openbenchmarking.org/result/1509033-HA-CLANGOPEN51.

LLVM Clang 3.8 OpenMP SVN BenchmarksProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilerFile-SystemScreen ResolutionGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMPIntel Xeon E5-2687W v3 @ 3.50GHz (20 Cores)MSI X99S SLI PLUS (MS-7885) v1.0Intel Xeon E5 v3/Core16384MB80GB INTEL SSDSCKGW08NVIDIA GeForce GTX Titan 6144MBIntel C610/X99ASUS PB278Intel ConnectionUbuntu 15.043.19.0-26-generic (x86_64)Unity 7.3.2X Server 1.17.1nouveau 1.0.113.3 Mesa 10.5.2 Gallium 0.4GCC 4.9.2 + Clang 3.8.0-svn246465-1~exp1ext41920x1080GCC 5.2.0 + Clang 3.8.0-svn246465-1~exp1Clang 3.8.0-svn246465-1~exp1OpenBenchmarking.orgCompiler Details- GCC 4.9.2: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-multilib --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v - GCC 5.2.0: --disable-multilib --enable-checking=release --enable-languages=c,c++Processor Details- Scaling Governor: intel_pstate powersave

LLVM Clang 3.8 OpenMP SVN Benchmarksgraphics-magick: Blurgraphics-magick: Sharpengraphics-magick: Resizinggraphics-magick: HWB Color Spacegraphics-magick: Local Adaptive Thresholdingsmallpt: Global Illumination Renderer; 100 SamplesGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP143143181177871214714418518686129428110135851441171081371508513OpenBenchmarking.org

GraphicsMagick

Operation: Blur

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: BlurGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP306090120150SE +/- 0.33, N = 3SE +/- 0.33, N = 3SE +/- 0.33, N = 3SE +/- 0.00, N = 314314794117-std=gnu99 -fopenmp -pthread -lgomp-fopenmp -pthread -ldl-pthread-fopenmp=libomp -fno-exceptions1. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread

GraphicsMagick

Operation: Sharpen

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: SharpenGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP306090120150SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 314314428108-std=gnu99 -fopenmp -pthread -lgomp-fopenmp -pthread -ldl-pthread-fopenmp=libomp -fno-exceptions1. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread

GraphicsMagick

Operation: Resizing

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: ResizingGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP4080120160200SE +/- 0.33, N = 3SE +/- 0.33, N = 3SE +/- 0.33, N = 3SE +/- 0.58, N = 3181185110137-std=gnu99 -fopenmp -pthread -lgomp-fopenmp -pthread -ldl-pthread-fopenmp=libomp -fno-exceptions1. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread

GraphicsMagick

Operation: HWB Color Space

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: HWB Color SpaceGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP4080120160200SE +/- 0.88, N = 3SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3177186135150-std=gnu99 -fopenmp -pthread -lgomp-fopenmp -pthread -ldl-pthread-fopenmp=libomp -fno-exceptions1. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread

GraphicsMagick

Operation: Local Adaptive Thresholding

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: Local Adaptive ThresholdingGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP20406080100SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 387868585-std=gnu99 -fopenmp -pthread -lgomp-fopenmp -pthread -ldl-pthread-fopenmp=libomp -fno-exceptions1. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread

Smallpt

Global Illumination Renderer; 100 Samples

OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP306090120150SE +/- 0.17, N = 6SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.22, N = 6121214413-fopenmp=libomp -fno-exceptions1. (CXX) g++ options: -fopenmp -O3 -march=native

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