Mostly a heads-up, since Data/miplib3 is only getting used by Cbc/trunk and in CoinAll. When compiled with GCC 4.4.x (or older, also happened for 4.1.2), the dsbmip problem takes half an hour during make test where it only takes about 20 seconds with GCC 4.6.4 or 4.8.x. Oddly just calling ./cbc ../Data/miplib3/dsbmip.gz (from installed build/bin folder) solves the problem in less than a second, but calling ./cbc -miplib appears to change the options in some way that causes a very long runtime for this problem with older GCC versions. Might be something to look into, or at least make a note of.
Mostly a heads-up, since Data/miplib3 is only getting used by Cbc/trunk and in CoinAll. When compiled with GCC 4.4.x (or older, also happened for 4.1.2), the dsbmip problem takes half an hour during
make testwhere it only takes about 20 seconds with GCC 4.6.4 or 4.8.x. Oddly just calling./cbc ../Data/miplib3/dsbmip.gz(from installedbuild/binfolder) solves the problem in less than a second, but calling./cbc -miplibappears to change the options in some way that causes a very long runtime for this problem with older GCC versions. Might be something to look into, or at least make a note of.Here are some
make testlogs for comparison GCC 4.6.3 https://gist.github.com/7671984 GCC 4.4.7 https://gist.github.com/7672197 GCC 4.5.3 https://gist.github.com/7671988 Clang 3.3, Clang++ 3.3, Gfortran 4.6.3 https://gist.github.com/7671977