Installing of CBC or GLPK solvers

[Ameen Sarhan]

Hi every one

I was working with Mac, once I started working on Windows I faced issues about CBC and GLPK solver installing using Anaconda prompt.
I am wondering if there is an easy way to install CBC or GLPK solver.

Thanks in advance.

[Ingrid Sánchez]

If you are using conda, Glpk was easy to install for me: conda install -c conda-forge glpk

[Fabian Neumann]

Hi,

there is some documentation on installing solvers on different platforms:

https://pypsa.readthedocs.io/en/latest/installation.html#getting-a-solver-for-linear-optimisation

Best wishes,

Fabian N

[Ameen Sarhan]

Thanks, Fabian

regarding to the commercial solver is there any document to guild the installation process.

Thanks

[Max Parzen]

Hi Ameen,

Gurobi provides a useful guide:

Gurobi installation guide

Be aware that the guide is referring to the gurobi9.0.1 version, however, the newest gurobi version is 9.0.3. So make sure you set up the correct version.

Best,

Max

[Ameen Sarhan]

thank you Max 
I will try it

[Ameen Sarhan]

Hi all
I installed gurobi in the following direction : C:\gurobi
My conda environment in the direction : C:\Users\ameen\.conda\envs\pypsa

Once I started using gurobi I got an error 
Can you please guide me to connect gurobi with the certain env.

Thank you so much

[Max Parzen]

Hi Ameen,

What’s your error message?

What usually goes wrong is setting the path. Or missing the gurobi license. One way to check if the path is set correctly is by typing in the command window: gurobi.sh

Kind regards,

Max

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[Ameen Sarhan]

Hi Max
I think it a path problem I got this error : 'gurobi.sh' is not recognized as an internal or external command,

operable program or batch file.

Kind regards,  

[Max Parzen]

Hi Ameen,

Maybe this helps:

Kind regards,

Max

[David Kayanan]

Hi all,

Is there an easy way to install CBC on windows? Accdg. to the installation page, you can use conda for all platforms except Windows (I still tried though :D).

Appreciate any and all help! :)

[Neumann, Fabian (IAI)]

Hi David,

at least not via conda, see https://github.com/conda-forge/coincbc-feedstock/issues/21.

You can install manually: https://projects.coin-or.org/Cbc

Best,

Fabian N

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Fabian Neumann

KIT

On 25 Mar 2021, at 03:24, David Kayanan <david....@gmail.com> wrote:

Hi all,

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[David Kayanan]

Dear Fabian,

I appreciate you reaching out. I hope you don't mind this noob question. but I don't know how to install it manually. Perhaps you can help and and others in the same position.

In their Github, they suggest installing the binaries from Bintray. Once you've selected your desired version of CBC, what do you do with the zip file thereafter?

I think you have to extract it and let the pypsa environment know where it is. Is this right? I simply do not know how this is done. Thank you for your kind response.

Best regards,

David