fdc_control_type structure

#include <galahad_fdc.h>

struct fdc_control_type {
    // fields

    bool f_indexing;
    ipc_ error;
    ipc_ out;
    ipc_ print_level;
    ipc_ indmin;
    ipc_ valmin;
    rpc_ pivot_tol;
    rpc_ zero_pivot;
    rpc_ max_infeas;
    bool use_sls;
    bool scale;
    bool space_critical;
    bool deallocate_error_fatal;
    char symmetric_linear_solver[31];
    char unsymmetric_linear_solver[31];
    char prefix[31];
    struct sls_control_type sls_control;
    struct uls_control_type uls_control;
};

detailed documentation

control derived type as a C struct

components

bool f_indexing

use C or Fortran sparse matrix indexing

ipc_ error

unit for error messages

ipc_ out

unit for monitor output

ipc_ print_level

controls level of diagnostic output

ipc_ indmin

initial estimate of integer workspace for sls (obsolete)

ipc_ valmin

initial estimate of real workspace for sls (obsolete)

rpc_ pivot_tol

the relative pivot tolerance (obsolete)

rpc_ zero_pivot

the absolute pivot tolerance used (obsolete)

rpc_ max_infeas

the largest permitted residual

bool use_sls

choose whether SLS or ULS is used to determine dependencies

bool scale

should the rows of A be scaled to have unit infinity norm or should no scaling be applied

bool space_critical

if space is critical, ensure allocated arrays are no bigger than needed

bool deallocate_error_fatal

exit if any deallocation fails

char symmetric_linear_solver[31]

the name of the symmetric-indefinite linear equation solver used. Possible choices are currently: ‘sils’, ‘ma27’, ‘ma57’, ‘ma77’, ‘ma86’, ‘ma97’, ‘ssids’, ‘mumps’, ‘pardiso’, ‘mkl_pardiso’, ‘pastix’, ‘wsmp’, and ‘sytr’, although only ‘sytr’ and, for OMP 4.0-compliant compilers, ‘ssids’ are installed by default; others are easily installed (see README.external). More details of the capabilities of each solver are provided in the documentation for galahad_sls.

char unsymmetric_linear_solver[31]

the name of the unsymmetric linear equation solver used. Possible choices are currently: ‘gls’, ‘ma48’ and ‘getr’, although only ‘getr’ is installed by default; others are easily installed (see README.external). More details of the capabilities of each solver are provided in the documentation for galahad_uls.

char prefix[31]

all output lines will be prefixed by prefix(2:LEN(TRIM(.prefix))-1) where prefix contains the required string enclosed in quotes, e.g. “string” or ‘string’

struct sls_control_type sls_control

control parameters for SLS

struct uls_control_type uls_control

control parameters for ULS