my $prerr= "\n=====\n$cplex\n=====\n$glpsol_out\n=====\n ";
pipethrough_run_finish($output,$prerr);
map { defined $_->{OptQty} or die "$prerr $_->{Flow}{Ix}" } @subflows;
my $prerr= "\n=====\n$cplex\n=====\n$glpsol_out\n=====\n ";
pipethrough_run_finish($output,$prerr);
map { defined $_->{OptQty} or die "$prerr $_->{Flow}{Ix}" } @subflows;