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Up-> CppAD speed speed_double double_mat_mul.cpp

CppAD-> Install Introduction AD ADFun preprocessor multi_thread utility ipopt_solve Example speed Appendix

speed-> speed_main speed_utility speed_double speed_adolc speed_cppad speed_fadbad speed_sacado

speed_double-> double_det_minor.cpp double_det_lu.cpp double_mat_mul.cpp double_ode.cpp double_poly.cpp double_sparse_hessian.cpp double_sparse_jacobian.cpp

double_mat_mul.cpp

Headings-> Specifications Implementation

# include <cppad/cppad.hpp>
# include <cppad/speed/mat_sum_sq.hpp>
# include <cppad/speed/uniform_01.hpp>

// Note that CppAD uses global_option["memory"] at the main program level
# include <map>
extern std::map<std::string, bool> global_option;

bool link_mat_mul(
     size_t                           size     ,
     size_t                           repeat   ,
     CppAD::vector<double>&           x        ,
     CppAD::vector<double>&           z        ,
     CppAD::vector<double>&           dz
)
{
     if(global_option["onetape"]||global_option["atomic"]||global_option["optimize"])
          return false;
     // -----------------------------------------------------
     size_t n = size * size; // number of independent variables
     CppAD::vector<double> y(n);

     while(repeat--)
     {     // get the next matrix
          CppAD::uniform_01(n, x);

          // do computation
          mat_sum_sq(size, x, y, z);

     }
     return true;
}