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| author | Clement Farabet <clement.farabet@gmail.com> | 2012-06-28 03:48:19 +0400 |
|---|---|---|
| committer | Clement Farabet <clement.farabet@gmail.com> | 2012-06-28 03:48:19 +0400 |
| commit | ded180850284f7b58f42c4d5caeee3d562bb0cc7 (patch) | |
| tree | 0dea090803098775b424a7c7f075d6df2ac56921 | |
| parent | 95e758def782bc073ddd45e1acf3e0ca50b660ee (diff) | |
Added extra help to build Torch on MacOS (with OPENMP)
| -rw-r--r-- | dokinstall/index.dok | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/dokinstall/index.dok b/dokinstall/index.dok index 35b37ae..e4b4ac2 100644 --- a/dokinstall/index.dok +++ b/dokinstall/index.dok @@ -280,6 +280,20 @@ website]] and install it. An excellent BLAS/LAPACK implementation is also recommended for speed. See our [[blas|BLAS recommendations]]. +Last but not least, GCC >= 4.6 is *required* to enable OpenMP on MacOS X. This +is a bit crazy, but compiling against OpenMP with previous versions of GCC +will give you random segfaults and trap errors (a known issue on the web). +We strongly recommend you to install GCC 4.6, to fully benefit from Torch's +fast numeric routines. A very simple way of doing so is to install the +[[http://gcc.gnu.org/wiki/GFortranBinaries|GFortran]] libraries, which are +packaged as a simple dmg, ready to install. That'll automatically install gcc +and g++. Once this is done, set your CC and CXX before building Torch: + +<file> +export CC=/usr/local/gfortran/bin/gcc +export CXX=/usr/local/gfortran/bin/g++ +</file> + ==== B. Getting Torch sources ==== Same as [[#install.sources|getting sources]] for linux. |