Team, the issue is apparently on the wrapper side:
“but the Cbc version does not seem to have add_row or add_column so does things in a different way. The Clp version has both add_row and add_rows. If the interface is using add_row and/or add_column, then that would explain the large time spent before Clp. There is an example in Clp/examples/addRows.cpp which which is there just to explain why it is not a good idea to add one row at a time for many rows.”
I have also been evaluating performance with GLPK and with SCIP-SoPlex, but the performance is not good enough.
What do you think?
See: