llsr_control_type structure

    struct llsr_control_type{T,INT}
      f_indexing::Bool
      error::INT
      out::INT
      print_level::INT
      new_a::INT
      new_s::INT
      max_factorizations::INT
      taylor_max_degree::INT
      initial_multiplier::T
      lower::T
      upper::T
      stop_normal::T
      use_initial_multiplier::Bool
      space_critical::Bool
      deallocate_error_fatal::Bool
      definite_linear_solver::NTuple{31,Cchar}
      prefix::NTuple{31,Cchar}
      sbls_control::sbls_control_type{T,INT}
      sls_control::sls_control_type{T,INT}
      ir_control::ir_control_type{T,INT}

detailed documentation

control derived type as a Julia structure

components

Bool f_indexing

use C or Fortran sparse matrix indexing

INT error

unit for error messages

INT out

unit for monitor output

INT print_level

controls level of diagnostic output

INT new_a

how much of \(A\) has changed since the previous call. Possible values are

• 0 unchanged

• 1 values but not indices have changed

• 2 values and indices have changed

INT new_s

how much of \(S\) has changed since the previous call. Possible values are

• 0 unchanged

• 1 values but not indices have changed

• 2 values and indices have changed

INT max_factorizations

the maximum number of factorizations (=iterations) allowed. -ve implies no limit

INT taylor_max_degree

maximum degree of Taylor approximant allowed (<= 3)

T initial_multiplier

initial estimate of the Lagrange multipler

T lower

lower and upper bounds on the multiplier, if known

T upper

see lower

T stop_normal

stop when \(| \|x\| - (\lambda/\sigma)^{1/(p-2)| \leq\) stop_normal \* max( 1, \(\|x\|\))

Bool use_initial_multiplier

ignore initial_multiplier?

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 definite_linear_solver[31]

definite linear equation solver

NTuple{31,Cchar} prefix

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 sbls_control_type sbls_control

control parameters for the symmetric factorization and related linear solves (see sbls_c documentation)

struct sls_control_type sls_control

control parameters for the factorization of S and related linear solves (see sls_c documentation)

struct ir_control_type ir_control

control parameters for iterative refinement for definite system solves (see ir_c documentation)