Am 12.03.2010 um 18:20 schrieb Rutger ter Borg:

Kraus Philipp wrote:

Hello,

I try to install the numerical bindings for my boost, but I can't
compile
the examples. I had installed and compilde the Atlas Lib 3.9.23 with
Lapack support and the Boost 1.42 with MPI Support under OS X Leo.

I take a look at
http://www.opentissue.org/wikitissue/index.php/Boost_bindings but I had
checked out the bindungs with and without the -v1 prefix and try
to compile the examples under the lib directory.

How can I work with the boost uBlas structures and the Atlas lib, so I
can use
the Cholesky factorisation with a uBlas matrix? Can you help me to
install
the bindings correctly?


Sure, I can help with the one without the -v1 suffix. The regressions tests
should work for 98%, the examples however aren't ported yet to the newer
bindings structure. One of the major changes in the newer bindings is that
if you would like to use atlas, it's still blas, so

bindings::atlas::gemm( ... )

becomes

bindings::blas::gemm( ... )

and if you would like to compile and link against ATLAS, define

BOOST_NUMERIC_BINDINGS_BLAS_CBLAS

Hope this helps, please let me know if I can help further.

Thank a lot, but I run into errors, because I can't see my error.

1. I had checked out svn co http://svn.boost.org/svn/boost/sandbox/numeric_bindings/boost/numeric/bindings
but there isn't a "atlas" subdirectory

2. I had compiled my atlas like http://math-atlas.sourceforge.net/atlas_install/atlas_install.html#SECTION00041000000000000000
without fortran and the lapack. I had got 4 libs

3. I have took the example on http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl?Linear_Algebra_With_UBLAS
but without the atlas subdir I can't compile it.

4. Then I try to write my own example:

#define BOOST_NUMERIC_BINDINGS_BLAS_CBLAS

#include <boost/numeric/ublas/matrix.hpp>
#include <boost/numeric/ublas/vector.hpp>
#include <boost/numeric/bindings/blas/level1.hpp> 
or
#include <boost/numeric/bindings/blas/level1/nrm2.hpp> 


namespace ublas = boost::numeric::ublas; 
namespace atlas = boost::numeric::bindings::atlas;

int main() {
    ublas::vector<float> sv (8);
    std::cout << atlas::nrm2 (sv) << std::endl; 
}    

but the namespace isn't defined. So I search the nrm2.hpp
and set the include directly, but it doesn't work.

I don't understand how to use the bindings, because I can't
find a documentation with a working example like on the
boost main page.

Thanks a lot.

Phil