[ublas] Trouble with gemv and boost::numeric::bindings::blas

Subject: [ublas] Trouble with gemv and boost::numeric::bindings::blas
From: Alex Winbow (awinbow_at_[hidden])
Date: 2008-12-06 18:31:07

         I've successfully used boost::numeric::bindings to call ATLAS's 
gemm and gemv (thanks, guys, for the fantastic work!). I'd like to use the 
GotoBLAS instead. blas::gemm builds fine, but blas::gemv errors with "no 
matching function". A minimal example:

-------------------------------------------------
#include <numeric>
#include <complex>

#include <boost/numeric/ublas/matrix.hpp>
#include <boost/numeric/ublas/matrix_proxy.hpp>
#include <boost/numeric/ublas/vector.hpp>
#include <boost/numeric/ublas/vector_proxy.hpp>

#include <boost/numeric/bindings/traits/ublas_matrix.hpp>
#include <boost/numeric/bindings/traits/ublas_vector.hpp>

#include <boost/numeric/bindings/blas/blas.hpp>
#include <boost/numeric/bindings/blas/blas2_overloads.hpp>

//#include <boost/numeric/bindings/atlas/cblas.hpp>
//#include <boost/numeric/bindings/atlas/cblas_inc.hpp>

namespace ublas = boost::numeric::ublas;
namespace externalblas = boost::numeric::bindings::blas;
//namespace externalblas = boost::numeric::bindings::atlas;

int main () {

         typedef std::complex<double> Complex;
         const int size = 100;
         ublas::vector<Complex> x(size);
         ublas::vector<Complex> y(size);
         ublas::matrix<Complex> A(size, size);
         ublas::matrix<Complex> B(size, size);
         ublas::matrix<Complex> C(size, size);

         externalblas::gemm(A, B, C);
         externalblas::gemv(A, x, y);

};
-------------------------------------------------

If you swap the commented lines for blas<->atlas, it works fine. I'm using 
g++ 4.3.2, version 20081116 of the bindings, and boost_1_37_0.

gemvtest.cpp: In function 'int main()':

gemvtest.cpp:34: error: no matching function for call to
'gemv(boost::numeric::ublas::matrix<std::complex<double>,
boost::numeric::ublas::basic_row_major<unsigned int, int>,
boost::numeric::ublas::unbounded_array<std::complex<double>,
std::allocator<std::complex<double> > > >&,
boost::numeric::ublas::vector<std::complex<double>,
boost::numeric::ublas::unbounded_array<std::complex<double>,
std::allocator<std::complex<double> > > >&,
boost::numeric::ublas::vector<std::complex<double>,
boost::numeric::ublas::unbounded_array<std::complex<double>,
std::allocator<std::complex<double> > > >&)'

         Am I doing something wrong? blas2.hpp includes a prototype for
gemv(const matrix_type &a, const vector_type_x &x, vector_type_y &y).

                                         Thanks,
                                         -Alex