[SCIP] How to use FiberSCIP and UG with SCIP 8.0.3?

[Stefan Vigerske]

Hi,

as far as I remember, FiberSCIP comes as an executable only.
I once used it as a library, but it wasn't that straightforward to get 
there.
Building the source into a library isn't that difficult. But then I 
copied a lot from fscip.cpp and derived my own class from 
ParaSCIP::ScipParaInitiator. I had to essentially copy the whole long 
ScipParaInitiator::init() method to then customize it to my needs.

There were also some bugfixes in UG necessary, which are not all in the 
UG that comes with SCIP OptSuite 8.0.3. I also have the impression that 
a UG update will not be included in the next maintenance release of the 
SCIP OptSuite, and I don't see UG mirrored on GitHub, so if there are 
problems, you may want to check with Yuji to get the latest version.

If you're not already familiar with UG and SCIP and not happy to just 
build source without an elaborate buildsystem provided, you may want to 
consider using FiberSCIP as an executable only and communicate with it 
via files.

Stefan

On 03/08/2023 06:34, Yuji Shinano wrote:
> Hi,
> 
> FiberSCIP with SCIP 8.0.3 is included in SCIP Optimization Suite 8.0.3.
> Please download it and build FiberSCIP. If you have questions, please 
> let me know.
> 
> Best,
> Yuji
> 
> On 02.08.23 16:17, Lastra Diaz Jose wrote:
>>
>> Dear colleagues,
>>
>> I wonder how to integrate FiberSCIP and UG in a SCIP-based application 
>> (SCIP 8.0.3). We have developed a family of MILP models and I would 
>> like to evaluate FiberSCIP to parallelizing their B&B resolution 
>> within a single desktop PC.
>>
>> Is it possible? What should we do to solve our MILP models in 
>> multithread mode?
>>
>> Thank you for your help,
>>
>> Juan
>>
>> cid:image001.png at 01D4B3E6.540B6570
>>
>>
>>
>> *Juan J. Lastra Díaz, PhD*
>>
>> *Advanced Research department*
>>
>> *t **: *+34 917 88 88 65
>>
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>>
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>>
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