Pardiso Linear Solver

pardiso_msglvl:

Pardiso message level
This determines the amount of analysis output from the Pardiso solver. This is MSGLVL in the Pardiso manual. The valid range for this integer option is $0 \le {\tt pardiso\_msglvl } < {\tt +inf}$ and its default value is 0 .

pardiso_matching_strategy:

Matching strategy to be used by Pardiso
This is IPAR(13) in Pardiso manual. This option is only available if Ipopt has been compiled with Pardiso. The default value for this string option is "complete+2x2".
Possible values:

• complete: Match complete (IPAR(13)=1)
• complete+2x2: Match complete+2x2 (IPAR(13)=2)
• constraints: Match constraints (IPAR(13)=3)

pardiso_out_of_core_power:

Enables out-of-core variant of Pardiso
Setting this option to a positive integer k makes Pardiso work in the out-of-core variant where the factor is split in 2k subdomains. This is IPARM(50) in the Pardiso manual. This option is only available if Ipopt has been compiled with Pardiso. The valid range for this integer option is $0 \le {\tt pardiso\_out\_of\_core\_power } < {\tt +inf}$ and its default value is 0 .