Nb thread max 1 N 100000 Mean time on 10000 executions Sequential work took 0.000102 seconds OMP work took 0.000101 seconds Nb thread max 2 N 100000 Mean time on 10000 executions Sequential work took 0.000103 seconds OMP work took 0.000054 seconds Nb thread max 4 N 100000 Mean time on 10000 executions Sequential work took 0.000102 seconds OMP work took 0.000027 seconds Nb thread max 6 N 100000 Mean time on 10000 executions Sequential work took 0.000102 seconds OMP work took 0.000020 seconds Nb thread max 12 N 100000 Mean time on 10000 executions Sequential work took 0.000099 seconds OMP work took 0.000016 seconds