README.txt
1 2 This folder contains a couple of benchmark utities and Eigen benchmarks. 3 4 **************************** 5 * bench_multi_compilers.sh * 6 **************************** 7 8 This script allows to run a benchmark on a set of different compilers/compiler options. 9 It takes two arguments: 10 - a file defining the list of the compilers with their options 11 - the .cpp file of the benchmark 12 13 Examples: 14 15 $ ./bench_multi_compilers.sh basicbench.cxxlist basicbenchmark.cpp 16 17 g++-4.1 -O3 -DNDEBUG -finline-limit=10000 18 3d-3x3 / 4d-4x4 / Xd-4x4 / Xd-20x20 / 19 0.271102 0.131416 0.422322 0.198633 20 0.201658 0.102436 0.397566 0.207282 21 22 g++-4.2 -O3 -DNDEBUG -finline-limit=10000 23 3d-3x3 / 4d-4x4 / Xd-4x4 / Xd-20x20 / 24 0.107805 0.0890579 0.30265 0.161843 25 0.127157 0.0712581 0.278341 0.191029 26 27 g++-4.3 -O3 -DNDEBUG -finline-limit=10000 28 3d-3x3 / 4d-4x4 / Xd-4x4 / Xd-20x20 / 29 0.134318 0.105291 0.3704 0.180966 30 0.137703 0.0732472 0.31225 0.202204 31 32 icpc -fast -DNDEBUG -fno-exceptions -no-inline-max-size 33 3d-3x3 / 4d-4x4 / Xd-4x4 / Xd-20x20 / 34 0.226145 0.0941319 0.371873 0.159433 35 0.109302 0.0837538 0.328102 0.173891 36 37 38 $ ./bench_multi_compilers.sh ompbench.cxxlist ompbenchmark.cpp 39 40 g++-4.2 -O3 -DNDEBUG -finline-limit=10000 -fopenmp 41 double, fixed-size 4x4: 0.00165105s 0.0778739s 42 double, 32x32: 0.0654769s 0.075289s => x0.869674 (2) 43 double, 128x128: 0.054148s 0.0419669s => x1.29025 (2) 44 double, 512x512: 0.913799s 0.428533s => x2.13239 (2) 45 double, 1024x1024: 14.5972s 9.3542s => x1.5605 (2) 46 47 icpc -fast -DNDEBUG -fno-exceptions -no-inline-max-size -openmp 48 double, fixed-size 4x4: 0.000589848s 0.019949s 49 double, 32x32: 0.0682781s 0.0449722s => x1.51823 (2) 50 double, 128x128: 0.0547509s 0.0435519s => x1.25714 (2) 51 double, 512x512: 0.829436s 0.424438s => x1.9542 (2) 52 double, 1024x1024: 14.5243s 10.7735s => x1.34815 (2) 53 54 55 56
