An issue of Interior-Point Methods in TAO
Dear PETSc/TAO team, I am using an interior-point method in TAO to solve a quadratic programming problem with bound constraints. I noticed that TAO includes three interior-point methods, they are Mehrotra Predictor-Corrector Method (bqpip), Primal-Dual Interior-Point Method (pdipm) and "ipm", respectively. I'd like to ask what is the interior-point method implemented by "-tao_type ipm", thank you. Best Regards, Gang
It looks like it was started as a general framework for interior point methods but never finished? There is a note on its manual page "This algorithm is more of a place-holder for future constrained optimization algorithms and should not yet be used for large problems or production code." You are welcome to look at the source code and play with it but you should consider it unfinished and unsupported. Barry
On Oct 19, 2022, at 4:01 AM, 赵刚 <[email protected]> wrote:
Dear PETSc/TAO team,
I am using an interior-point method in TAO to solve a quadratic programming problem with bound constraints. I noticed that TAO includes three interior-point methods, they are Mehrotra Predictor-Corrector Method (bqpip), Primal-Dual Interior-Point Method (pdipm) and "ipm", respectively. I'd like to ask what is the interior-point method implemented by "-tao_type ipm", thank you.
Best Regards, Gang
I see. Thank you for your promptly reply. Best Regards, Gang > -----原始邮件----- > 发件人: "Barry Smith" <[email protected]> > 发送时间: 2022-10-19 22:50:16 (星期三) > 收件人: "赵刚" <[email protected]>, "Munson, Todd" <[email protected]> > 抄送: [email protected] > 主题: Re: [petsc-users] An issue of Interior-Point Methods in TAO > > > It looks like it was started as a general framework for interior point methods but never finished? > > There is a note on its manual page "This algorithm is more of a place-holder for future constrained optimization algorithms and should not yet be used for large problems or production code." > > You are welcome to look at the source code and play with it but you should consider it unfinished and unsupported. > > Barry > > > > On Oct 19, 2022, at 4:01 AM, 赵刚 <[email protected]> wrote: > > > > Dear PETSc/TAO team, > > > > I am using an interior-point method in TAO to solve a quadratic programming problem with bound constraints. I noticed that TAO includes three interior-point methods, they are Mehrotra Predictor-Corrector Method (bqpip), Primal-Dual Interior-Point Method (pdipm) and "ipm", respectively. I'd like to ask what is the interior-point method implemented by "-tao_type ipm", thank you. > > > > > > Best Regards, > > Gang </[email protected]></[email protected]></[email protected]></[email protected]>
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Barry Smith -
赵刚