Solver settings

The solver settings are displayed in the following table. The settings marked with * can be changed without running the setup method again.

Argument	Description	Allowed values	Default value
device	Device identifier	0 <= device (integer)	0
linsys_solver	Linear systems solver type	See Linear Systems Solvers	qdldl
verbose *	Print output	True/False	True
warm_starting *	Perform warm starting	True/False	True
scaling	Number of scaling iterations	0 (disabled) or 0 < scaling (integer)	10
polishing *	Perform polishing	True/False	False
rho *	ADMM rho step	0 < rho	0.1
rho_is_vec	Is rho a vector?	True/False	True
sigma	ADMM sigma step	0 < sigma	1e-06
alpha *	ADMM relaxation parameter	0 < alpha < 2	1.6
cg_max_iter *	Maximum number of CG iterations per solver	0 < cg_max_iter (integer)	20
cg_tol_reduction *	No. of consecutive CG iterations before the tol is halved	0 < cg_tol_reduction (integer)	10
cg_tol_fraction *	CG tolerance (fraction of ADMM residuals)	0 < cg_tol_fraction < 1	0.15
adaptive_rho	Adaptive rho	True/False	True
adaptive_rho_interval	Adaptive rho interval	0 (automatic) or 0 < adaptive_rho_interval (integer)	0
adaptive_rho_fraction	Adaptive rho interval as fraction of setup time (auto mode)	0 < adaptive_rho_fraction	0.4
adaptive_rho_tolerance	Tolerance for adapting rho	1 <= adaptive_rho_tolerance	5
max_iter *	Maximum number of iterations	0 < max_iter (integer)	4000
eps_abs *	Absolute tolerance	0 <= eps_abs	1e-03
eps_rel *	Relative tolerance	0 <= eps_rel	1e-03
eps_prim_inf *	Primal infeasibility tolerance	0 <= eps_prim_inf	1e-04
eps_dual_inf *	Dual infeasibility tolerance	0 <= eps_dual_inf	1e-04
scaled_termination *	Scaled termination conditions	True/False	False
check_termination *	Check termination interval	0 (disabled) or 0 < check_termination (integer)	25
time_limit *	Runtime limit in seconds	0 < time_limit	1e+10
delta *	Polishing regularization parameter	0 < delta	1e-06
polish_refine_iter *	Refinement iterations in polishing	0 < polish_refine_iter (integer)	3

The boolean values True/False are defined as 1/0 in the C interface.