Or-tools: How to configure or-tools to work with Gurobi?

[gmarchi]

I suppose I have to setup UNIX_GUROBI_DIR in Makefile.local and then do 'make clean' and 'make cc', right? I've seen also GUROBI_LIB_VERSION, what kind of parameters does it refer?

[reinoldus]

this is what I write in to the Makefile and it is working with Gurobi:

echo "UNIX_GUROBI_DIR = /opt/gurobi/" >> /opt/or-tools/or-tools-6.0/Makefile.local
echo "GUROBI_LIB_VERSION = 70" >> /opt/or-tools/or-tools-6.0/Makefile.local

I assume that GUROBI_LIB_VERSION stands for the major version:
7.0.2 -> 70

If I recall correctly the number is required to find the appropriate lib: libgurobi70.so

hope it helps!

[lperron]

Yes, thanks!

Laurent Perron | Operations Research | [email protected] | (33) 1 42 68 53
00

2017-07-05 20:39 GMT-07:00 Stefan Hesse [e-mail]:

this is my working config for Gurobi:

echo "UNIX_GUROBI_DIR = /opt/gurobi/" >> /opt/or-tools/or-tools-6.0/
Makefile.local
echo "GUROBI_LIB_VERSION = 70" >> /opt/or-tools/or-tools-6.0/
Makefile.local

I assume that GUROBI_LIB_VERSION stands for the major version:
7.0.2 -> 70

If I recall correctly the number is required to find the appropriate lib:
libgurobi70.so

hope it helps!

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[gmarchi]

this is what I write in to the Makefile and it is working with Gurobi:

echo "UNIX_GUROBI_DIR = /opt/gurobi/" >> /opt/or-tools/or-tools-6.0/Makefile.local
echo "GUROBI_LIB_VERSION = 70" >> /opt/or-tools/or-tools-6.0/Makefile.local

I assume that GUROBI_LIB_VERSION stands for the major version:
7.0.2 -> 70

If I recall correctly the number is required to find the appropriate lib: libgurobi70.so

hope it helps!

Thanks @reinoldus !!!

[helanhalvan]

I don't think this should be closed until some documentation about how to do this is put somewhere easier to find.

[antoniomedrano]

So to clarify, this is similar to the procedure for installing SCIP? On a mac with python, this would be:

1. Download the latest or-tools release (after installing the latest cmake and command line tools)
2. make third_party
3. make python
4. Edit Makefile.local by adding the following lines at the end (assuming or-tools v6.5 and gurobi v7.5.2):
   echo "UNIX_GUROBI_DIR = /opt/gurobi/" >> /opt/or-tools/or-tools-6.5/Makefile.local echo "GUROBI_LIB_VERSION = 75" >> /opt/or-tools/or-tools-6.5/Makefile.local
5. make clean && make cc

Please confirm if this is correct @lperron, thanks.

[gmarchi]

I think there are some mistakes in your procedure.

If you have to install or-tools from zero:

1. Download them (of course check dependencies).
2. make third_party
3. Edit Makefile.local as you correctly said (however on my mac i have a different “UNIX_GUROBI_DIR”, so check your path to gurobi).
4. Now make python (after would be useful also a make test)

If instead you’d like to modify a current or tools installation, i think you should:

1. make clean
2. Edit Makefile.local
3. make python (oh and of course remember to check that everything is working with make test)

I hope it helps!

Il giorno 22 nov 2017, alle ore 09:18, Antonio Medrano [e-mail] ha scritto:

So to clarify, this is similar to the procedure for installing SCIP? On a mac with python, this would be:

Download the latest or-tools release (after installing the latest cmake and command line tools)
make third_party
make python
Edit Makefile.local by adding the following lines at the end (assuming or-tools v6.5 and gurobi v7.5.2):
echo "UNIX_GUROBI_DIR = /opt/gurobi/" >> /opt/or-tools/or-tools-6.5/Makefile.local echo "GUROBI_LIB_VERSION = 75" >> /opt/or-tools/or-tools-6.5/Makefile.local
make clean && make cc
Please confirm if this is correct. Thanks.

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[gdowdy3]

This page is highly relevant:
https://developers.google.com/optimization/install/python/source_linux

[Mizux]

You can test python using make check_python (only run few samples to cover each libraries)