Search code examples
eigenvectoreigenintel-mkl

intel MKL: what function used in MKL lib (only for C program) for solving Ax=lambda*Bx (eigen value)

Ax=lambda*Bx

how to find the value of lambda using MKL?

Solution

  • The best function to call depends on the structure and data types of your matrices. Intel provides this guide on function selection for various eigen value solutions .

    To set up your inputs, consult the MKL Notes on calling from c

    Here's a snippet:

    When calling LAPACK routines from C-language programs, make sure that you follow Fortran rules: Pass variables by 'address' as opposed to pass by 'value'. Be sure to store your data Fortran-style, i.e. data stored column-major rather than row-major order.