Dixon-Price: minimum 0, stationary point 2/3, 30 seeds, 20000 evaluations per dimension at most per run
runs                      at 0  at 2/3  elsewhere  evaluations: median  largest
CMA-ES with IPOP, n = 5     30       0          0                 3184    21288
CMA-ES with IPOP, n = 10     0      30          0                    0        0
DE, n = 10                   0      30          0                    0        0
PSO, n = 10                  3      25          2                11400    13520
PSO (ring), n = 10          13      15          2                34880    44400
evaluations: of the runs that reach the minimum, to within 1e-8
