diff options
| author |  Gael Guennebaud <g.gael@free.fr> | 2008-03-09 16:13:47 +0000 |
|---|---|---|
| committer | Gael Guennebaud <g.gael@free.fr> | 2008-03-09 16:13:47 +0000 |
| commit | 9d9d81ad71a52c33ba4db9f8a6059d435d279316 (patch) | |
| tree | d12a85ca594af99b04ce32f652ae67bf0baf228b /bench/README.txt | |
| parent | f64311e07de95694187e5d6d5d2e3cd118302076 (diff) | |
* basic support for multicore CPU via a .evalOMP() which
internaly uses OpenMP if enabled at compile time.
* added a bench/ folder with a couple benchmarks and benchmark tools.
Diffstat (limited to 'bench/README.txt')
| -rw-r--r-- | bench/README.txt | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/bench/README.txt b/bench/README.txt new file mode 100644 index 000000000..39831ae8a --- /dev/null +++ b/bench/README.txt @@ -0,0 +1,55 @@ + +This folder contains a couple of benchmark utities and Eigen benchmarks. + +**************************** +* bench_multi_compilers.sh * +**************************** + +This script allows to run a benchmark on a set of different compilers/compiler options. +It takes two arguments: + - a file defining the list of the compilers with their options + - the .cpp file of the benchmark + +Examples: + +$ ./bench_multi_compilers.sh basicbench.cxxlist basicbenchmark.cpp + + g++-4.1 -O3 -DNDEBUG -finline-limit=10000 + 3d-3x3 / 4d-4x4 / Xd-4x4 / Xd-20x20 / + 0.271102 0.131416 0.422322 0.198633 + 0.201658 0.102436 0.397566 0.207282 + + g++-4.2 -O3 -DNDEBUG -finline-limit=10000 + 3d-3x3 / 4d-4x4 / Xd-4x4 / Xd-20x20 / + 0.107805 0.0890579 0.30265 0.161843 + 0.127157 0.0712581 0.278341 0.191029 + + g++-4.3 -O3 -DNDEBUG -finline-limit=10000 + 3d-3x3 / 4d-4x4 / Xd-4x4 / Xd-20x20 / + 0.134318 0.105291 0.3704 0.180966 + 0.137703 0.0732472 0.31225 0.202204 + + icpc -fast -DNDEBUG -fno-exceptions -no-inline-max-size + 3d-3x3 / 4d-4x4 / Xd-4x4 / Xd-20x20 / + 0.226145 0.0941319 0.371873 0.159433 + 0.109302 0.0837538 0.328102 0.173891 + + +$ ./bench_multi_compilers.sh ompbench.cxxlist ompbenchmark.cpp + + g++-4.2 -O3 -DNDEBUG -finline-limit=10000 -fopenmp + double, fixed-size 4x4: 0.00165105s 0.0778739s + double, 32x32: 0.0654769s 0.075289s => x0.869674 (2) + double, 128x128: 0.054148s 0.0419669s => x1.29025 (2) + double, 512x512: 0.913799s 0.428533s => x2.13239 (2) + double, 1024x1024: 14.5972s 9.3542s => x1.5605 (2) + + icpc -fast -DNDEBUG -fno-exceptions -no-inline-max-size -openmp + double, fixed-size 4x4: 0.000589848s 0.019949s + double, 32x32: 0.0682781s 0.0449722s => x1.51823 (2) + double, 128x128: 0.0547509s 0.0435519s => x1.25714 (2) + double, 512x512: 0.829436s 0.424438s => x1.9542 (2) + double, 1024x1024: 14.5243s 10.7735s => x1.34815 (2) + + + |