[SCIP] Build problem with Bliss

[Marc Pfetsch]

Dear André,

I suspect that you have a newer version of bliss, e.g. Version 0.77. 
Please update to the newest Version of SCIP (8.0.3). This version also 
ships with a version of bliss, so the problem should (hopefully) disappear.

Bliss is used for symmetry handling. In the case of branch-and-price 
these methods are deactivated.

Best

Marc


On 30/01/2023 17:50, André Mazal Krauss wrote:
> Hello SCIP team,
> 
> I'm trying to build SCIP 7.0.3 with Bliss. I have changed the SYM option 
> in CMake to 'bliss', and then, when running make, I get the following 
> error (full output attached):
> 
> /mnt/d/Programs/scipoptsuite-7.0.3/scip/src/symmetry/compute_symmetry_bliss.cpp:377:32: error: cannot convert ‘void(void*, unsigned int, const unsigned int*)’ to ‘const std::function<void(unsigned int, const unsigned int*)>&’
> 
> Is this some sort of version issue? Do you have any additional 
> instructions on how to use bliss?
> 
> By the way, how should I expect the availability of bliss to change the 
> way SCIP works? What is it actually used for? I am running it on a 
> Branch and Price methodology for a vehicle routing problem; would you 
> expect bliss to speed up execution in such a scenario?
> 
> Thanks in advance,
> André Mazal Krauss
> 
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