Optimal results for the large instances (n=1000)

Instance	Optimal Values
----------------------------------------
wt_1000_1		 661265390
wt_1000_2		 684518705
wt_1000_3		 579257186
wt_1000_4		 631856107
wt_1000_5		 667235710
wt_1000_6		 467732166
wt_1000_7		 396847657
wt_1000_8		 428531122
wt_1000_9		 398039149
wt_1000_10		 479549878
wt_1000_11		 229652979
wt_1000_12		 224592743
wt_1000_13		 226941187
wt_1000_14		 211502185
wt_1000_15		 220325327
wt_1000_16		  67040144
wt_1000_17		  69176483
wt_1000_18		  73481656
wt_1000_19		  68164711
wt_1000_20		  52213830
wt_1000_21		  10601919
wt_1000_22		   8151509
wt_1000_23		  13257992
wt_1000_24		   7309791
wt_1000_25		  14450905
----------------------------------------

Optimal results have been made available on December 1, 2011,
by Shunji Tanaka, Department of Electrical Engineering, Kyoto
University Kyotodaigaku-Katsura, Nishikyo-ku, Kyoto 615-8510,
Japan. Shunji Tanaka recorded a computing time of about two
days for each instance, using two Xeon E5620 and 96 GB RAM. He
maintains a SMTWTP-page under
http://turbine.kuee.kyoto-u.ac.jp/~tanaka/SiPS/

Remark: The optimal job sequences are available, also (provided
by Shunji Tanaka).