Bill Magan comments

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                                            Bill Magan

Takes longer to solve in new version primary due to items now not finding a solution in presolve

Hi Ted, I am one of the developers working with xnaegamvala. Following up a bit on the above. Does "using your own driver" just mean that we are using our...

Takes longer to solve in new version primary due to items now not finding a solution in presolve

I can attempt to dump all the symphony settings from within our own main function. When I referenced line "1100" in my prior comment, I failed to say that I...

Takes longer to solve in new version primary due to items now not finding a solution in presolve

Thanks for the response, In our linux build environment, running the above bash script returns this: Project: Cgl * (no branch) /home/centos/coinbrew Project: Clp * (no branch) /home/centos/coinbrew Project: cmake-3.8.2...

Takes longer to solve in new version primary due to items now not finding a solution in presolve

Our distro and compiler are as follows: CentOS Linux release 7.4.1708 (Core) gcc.x86_64 4.8.5-39.el7 @base gcc-c++.x86_64 4.8.5-39.el7 @base gcc-gfortran.x86_64 4.8.5-39.el7 @base I have not yet done any additional code comparisons...

Takes longer to solve in new version primary due to items now not finding a solution in presolve

The files in the attached .zip file are created in ClpSimplexPrimal.cpp inside this if block: if ((sumInfeasibility > 1.0e7 && sumInfeasibility > 100.0 * lastSumInfeasibility && factorization_->pivotTolerance() < 0.11) ||...