title: Use OpenMP in the multithreading. Because of ignoring OPENBLAS_NUM_THREADS
body: <p>While installing torch as follow : </p>
  
  <pre><code>git clone https://github.com/torch/distro.git ~/torch --recursive
  cd ~/torch; bash install-deps;
  </code></pre>
  
  <p>At this step : </p>
  
  <pre><code>   bash install-deps
  </code></pre>
  
  <p>The installation finished correctly. However l got a message that l don't understand. </p>
  
  <pre><code>  OS               ... Linux             
    Architecture     ... x86_64               
    BINARY           ... 64bit                 
    C compiler       ... GCC  (command line : gcc)
    Fortran compiler ... GFORTRAN  (command line : gfortran)
    Library Name     ... libopenblas_haswellp-r0.2.20.dev.a (Multi threaded; Max num-threads is 8)
  
   Use OpenMP in the multithreading. Because of ignoring OPENBLAS_NUM_THREADS and GOTO_NUM_THREADS flags, 
   you should use OMP_NUM_THREADS environment variable to control the number of threads.
  
  
  
  To install the library, you can run "make PREFIX=/path/to/your/installation install".
  
  make -j 8 -f Makefile.install install
  make[1]: Entering directory '/tmp/OpenBLAS'
  Generating openblas_config.h in /opt/OpenBLAS/include
  Generating f77blas.h in /opt/OpenBLAS/include
  Generating cblas.h in /opt/OpenBLAS/include
  Copying LAPACKE header files to /opt/OpenBLAS/include
  Copying the static library to /opt/OpenBLAS/lib
  Copying the shared library to /opt/OpenBLAS/lib
  Generating openblas.pc in /opt/OpenBLAS/lib/pkgconfig
  Generating OpenBLASConfig.cmake in /opt/OpenBLAS/lib/cmake/openblas
  Generating OpenBLASConfigVersion.cmake in /opt/OpenBLAS/lib/cmake/openblas
  Install OK!
  make[1]: Leaving directory '/tmp/OpenBLAS'
  ==&gt; Torch7's dependencies have been installed
  </code></pre>
  
  <p>l don't understand this line :</p>
  
  <pre><code>To install the library, you can run "make PREFIX=/path/to/your/installation install".
  </code></pre>
  
  <p>What is the library to install and how ?</p>
  
  <p>Before running :</p>
  
  <pre><code>./install.sh
  </code></pre>