A Parallelized Variable Fixing Process for Solving Multistage Stochastic Programs with Progressive Hedging

Table 3

Description of problem size.

Forest		Binary cols	Total cols	Rows	Nonzeros	Stands
P1	64	6,552,015	6,552,335	6,349,760	61,375,488	1,363
	256	62,209,423	62,210,703	61,747,968	66,199,808
	512	64,286,635	64,289,195	62,798,592	614,320,640
P34	64	612,960	613,280	69,024	633,472	32
	256	651,872	653,152	644,288	6,150,272
	512	6,100,640	6,103,200	672,704	6,322,560
P36	64	636,045	636,365	623,616	696,576	89
	256	6,144,269	6,145,549	6,117,248	6,431,872
	512	6,279,905	6,282,465	6,189,440	6,920,576
P75	64	6,121,500	6,121,820	677,632	6,311,808	300
	256	6,486,300	6,487,580	6,387,328	61,400,832
	512	6,943,500	6,946,060	6,621,568	63,288,576
P83	64	6,121,500	6,121,820	677,632	6,311,104	300
	256	6,486,300	6,487,580	6,387,328	61,398,016
	512	6,943,500	6,946,060	6,621,568	63,277,312
P100	64	6,121,500	6,121,820	677,632	6,310,400	300
	256	6,486,300	6,487,580	6,387,328	61,395,200
	512	6,943,500	6,946,060	6,621,568	63,266,048