HEIG
; program control IP KREST NROOT NITERX KTPR KEVP
; optional real parameters RP TOL
; end of input data EN EN
| $\mathtt{KREST}$ | The key of restart. | |
|---|---|---|
| $=1$ | commence the computation, determine starting vectors automatically | |
| $=2$ | commence the computation, read starting vectors from the binary file name.EJG |
|
| $\mathtt{NROOT}$ | The number of requested eigenpairs (eigenvalues and corresponding eigenvectors). | |
| $\mathtt{NITERX}$ | The maximum number of iterations allowed. The default value is $12.$ | |
| $\mathtt{KTPR}$ | The key of test prints. | |
| $=0$ | none | |
| $=1$ | information about eigenvalue iterations (recommended) | |
| $=2$ | iteration method inputs | |
| $=3$ | solution | |
| $=12$ $=13$ $=23$ | combinations of abovementioned | |
| $\mathtt{KEVP}$ | The key of the generalized eigenproblem. | |
| $=0$ | dynamics, the consistent mass matrices are read from the binary file name.EMM |
|
| $=1$ | stability, the initial stress matrices are read from the binary file name.EMG |
|
| $\mathtt{TOL}$ | The convergence criterion. The default value is $10^{-6},$ often a much higher value suffices, e.g., $10^{-5}<\mathtt{TOL}<10^{-3}.$ | |