[Ipopt] Installation of Ipopt

[Stefan Vigerske]

Hi,

Soomin Lee wrote:
> While installing Ipopt, I faced with this error message.
>  
> checking whether MUMPS is available... no
> configure: error: "No linear solver (such as MUMPS) available.  You need to 
> provide at least one."
> configure: error: /bin/sh './configure' failed for Ipopt
>  
> What is this about?

You did not provide some external code (linear solver) that Ipopt relies on.

> Do I need to install something else before installing Ipopt?

Yes.

> Where can I find and download an LP solver like MUMPS?

Read the manual:
http://www.coin-or.org/Ipopt/documentation/node9.html

To get MUMPS, you go into ThirdParty/Mumps and call get.Mumps.
You need to make sure that you have a Fortran 90 compiler installed on 
your system, e.g., gfortran or ifort.

Best,
Stefan

-- 
Stefan Vigerske
Humboldt University Berlin, Numerical Mathematics
http://www.math.hu-berlin.de/~stefan