On 1 July 2014 at 12:00, Alexander Braumann wrote:
| I tried to compile R with openblas on a ubuntu 12.04 machine. I have to
| say that I normally use the package system and that I have no experience
| with compiling R.
You do not need to do that. Just install the existing OpenBLAS package via
libopenblas-base
(which you may already have) and R will use as the BLAS interface is
generic. That is what the package tries to tell you via [edited]
edd@max:~$ dpkg -s r-base-core
Package: r-base-core
[...]
Version: 3.1.0-1trusty0
Depends: [...], libblas3 | libblas.so.3, [...], liblapack3 | liblapack.so.3,
[...]
^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Any suitable LAPACK and BLAS package providing libblas3 / liblapack3 can be
used -- plug and play. And OpenBLAS plays along.
Also:
| I did the following:
|
| ./configure --enable-BLAS-shlib --enable-R-shlib LIBnn=lib
| --with-blas="-L/usr/lib/openblas-base/ -lopenblas"
| --enable-memory-profiling --with-x=yes
|
|
| go the output:
|
| R is now configured for x86_64-unknown-linux-gnu
|
| Source directory: .
| Installation directory: /usr/local
|
| C compiler: gcc -std=gnu99 -g -O2
| Fortran 77 compiler: gfortran -g -O2
|
| C++ compiler: g++ -g -O2
| C++ 11 compiler: g++ -std=c++0x -g -O2
| Fortran 90/95 compiler: gfortran -g -O2
| Obj-C compiler:
|
| Interfaces supported: X11
| External libraries: readline, BLAS(generic), lzma
^^^^^^^^^^^^^^
tells you that you failed to tell the build about your OpenBLAS. It fell back
to generic.
This is all in the 'Installation + Administration' manual. But you really
don't need to do this by hand.
I suggest you send follow-up to the r-sig-debian list. Its archives also have
past discussions of this and related questions.
Regards, Dirk
--
http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
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