Here are 3 executables I use, one creates the set partition problem (it doubles the off-diagonal elements).  The other two are programs that use the xqx.dat and objective file to solve the problem.  Right-click to save them to your computer.

create_set_partitionR2,    set_ts12b ,    set_ts12b_no_relink

The following are zipped folders containing the input files for some of the set partitioning problems I sent you.  For example, 300_700_25p indicates 300 initial variables + 700 feasibility variables and 700 constraints (filled at 25%).

ProblemSets/set_partition_problems/300_700_25p.zip

ProblemSets/set_partition_problems/300_700_50p.zip

ProblemSets/set_partition_problems/300_700_75p.zip

ProblemSets/set_partition_problems/400_600_25p.zip

ProblemSets/set_partition_problems/400_600_50p.zip

ProblemSets/set_partition_problems/400_600_75p.zip

ProblemSets/set_partition_problems/500_500_50p.zip

ProblemSets/set_partition_problems/500_500_75p.zip

ProblemSets/set_partition_problems/500_800_50p.zip

ProblemSets/set_partition_problems/500_800_75p.zip

ProblemSets/set_partition_problems/600_400_50p.zip

ProblemSets/set_partition_problems/600_400_75p.zip

ProblemSets/set_partition_problems/700_300_50p.zip

ProblemSets/set_partition_problems/700_300_75p.zip