matrix size - blas2.cpp

[Vish108]

I changed the sizes in blas2.cpp provided in the tutorial. Please see below:

ublas::vector<ScalarType> rhs(100000);
  for (unsigned int i = 0; i < rhs.size(); ++i)
    rhs(i) = random<ScalarType>();
  ublas::vector<ScalarType> rhs2 = rhs;
  ublas::vector<ScalarType> result = ublas::zero_vector<ScalarType>(60000);

And I got the following error:

Check failed in file /usr/include/boost/numeric/ublas/functional.hpp at line 1362:
size_j == 0 || size_i <= (std::numeric_limits<size_type>::max) () / size_j
terminate called after throwing an instance of 'boost::numeric::ublas::bad_size'
  what():  bad size
Aborted (core dumped)

Why did this not pass the numeric limits test? Thank you.

[Karl Rupp]

Hi,

sorry for the delay, I still haven't figured out how to get notifications for new threads on this forum :-(

Later in the blas2-example there is a matrix created from the sizes provided to rhs and result. If you increase the size, then the matrix size blows up and hence the error.

Hope that helps :-)

Best regards,
Karli