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Installation
sudo apt-get install libatlas-dev libatlas3gf-base
sudo ln -s /usr/lib/libgslcblas.so.0.0.0 /usr/lib/libcblas.so
sudo ln -s /usr/lib/atlas-base/libatlas.so.3gf.0 /usr/lib/libatlas.so
gem install nmatrixIf you got error in gem install, it maybe cause by a locale bug, please try:
LANG="en_US" gem install nmatrixIf you have compile link head error, please check the libcblas.so, libatlas.so and cblas.h atlas.h file with apt-file tool
apt-file search xxx.hIn some case, you have to ln -s with proper path
[thanks to Eric MacAdie]
Note from developers: We're actually really surprised this worked. GSL provides a different CBLAS than ATLAS, and they should not be compatible. If you have trouble with these instructions, see if you can find libcblas.so and make a symbolic link to that one instead.
Follow the instructions below from 10.7.4, with the following alterations:
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Alter the gcc version in the
scripts/mac-brew-gcc.shfrom4.7.1to4.7.2 -
Change the last uncommented line in the script from
make installtosudo make install- you will need to enter your password when prompted -
When gcc is installed, you will need to symlink differently:
sudo ln -nfs /usr/gcc-4.7.2/bin/gcc-4.7.2 /usr/bin/gcc
sudo ln -nfs /usr/gcc-4.7.2/bin/g++-4.7.2 /usr/bin/g++
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You will need to recompile ruby with the new gcc - this is very important!
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If you are using
ruby-buildorrbenv-installand you have an error recompiling ruby with the new compiler, check this issue, you can workaround by commenting out the following lines in the ruby-build script:
if type clang &>/dev/null; then
if "${CC:-clang}" -x c /dev/null -E -Wno-error=shorten-64-to-32 &>/dev/null; then
RUBY_CFLAGS="$RUBY_CFLAGS -Wno-error=shorten-64-to-32"
fi
fiNow it should install fine!
Download Xcode from the App Store and run Install Xcode. Run Xcode and open its Preferences pane. Go to the Downloads tab and install Command Line Tools.
You will need Homebrew. Make sure everything's OK with brew doctor.
Check your version of GCC:
gcc -v
If it's less than 4.3, you need to upgrade. First, check the path to the Xcode directory:
xcode-select -print-path
Check if that directory exists. If not, you will need to run something like:
sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer
Otherwise, you will see the following error when compiling:
Error: No developer directory found at /Developer. Run /usr/bin/xcode-select to update the developer directory path.
You can now install a newer GCC using this script that's part of NMatrix, or use Homebrew below:
brew install https://raw.github.com/Homebrew/homebrew-dupes/master/gcc.rb
/usr/bin/gcc and /usr/bin/g++ should be symlinks. Point them to the newer version:
sudo ln -nfs /usr/local/bin/gcc-4.7 /usr/bin/gcc
sudo ln -nfs /usr/local/bin/g++-4.7 /usr/bin/g++
Clean up any previous attempts to compile:
rake clean
We want to include cblas.h but not clapack.h. Both are in /System/Library/Frameworks/Accelerate.framework/Versions/Current/Frameworks/vecLib.framework/Versions/Current/Headers/, so we can't just set C_INCLUDE_PATH and CPLUS_INCLUDE_PATH. Instead, create a symlink:
sudo ln -s /System/Library/Frameworks/Accelerate.framework/Versions/Current/Frameworks/vecLib.framework/Versions/Current/Headers/cblas.h /usr/include/cblas.h
Unset environment variables, in case you had previously set them:
unset C_INCLUDE_PATH
unset CPLUS_INCLUDE_PATHNow you can compile NMatrix:
git clone https://github.com/SciRuby/nmatrix.git
cd nmatrix
bundle
bundle exec rake compileIf that worked, you can install it:
bundle exec rake repackage
gem install pkg/nmatrix-0.0.4.gemIf you receive an error similar to the following when trying to require the library:
$ irb
> require 'nmatrix'
LoadError: dlopen(...):
Symbol not found: _clapack_cgetrf
Try to install the gem with the option --with-lapacklib:
gem install pkg/nmatrix-0.0.4.gem -- --with-lapacklib
See #34 if you have any issues.