Hi there,

I am using eigen2 and ldlt to solve the matrix equation K x = b, with K a matrix, b, a known vector, x an unknown vector. This has to be solved several times, the program should run for about 5 hours. After 1.5 hours I got the following error:

bambooEigen.out: /home/gavox/software/eigen2/Eigen/src/Core/Coeffs.h:96: typename Eigen::ei_traits<T>::Scalar& Eigen::MatrixBase<Derived>::operator()(int, int) [with Derived = Eigen::Matrix<double, 10000, 10000, 2, 10000, 10000>]: Assertion `row >= 0 && row < rows() && col >= 0 && col < cols()' failed.

What does it exactly mean?
Thanks very much for your time,

Gabriel

Steps to debug this:
1) make sure to have compiled your program with full debug info (with GCC, use -g3).
2) run your program in a debugger and get a back-trace (with GDB, do "run" and then "backtrace").

Once you have a backtrace you'll be able to find very easily where in your code is the problem (somewhere you're accessing a matrix entry out of bounds).

Yes, I was. Thanks Benoit.

gabrielvc wrote:Yes, I was. Thanks Benoit.

I am using MVS 2013 have this kind of problem. How can I solve it?

Run in "debug" mode to see if any assertion occur. If not, then please be more specific!