Population Based Metaheuristic Algorithm Approach for Analysis of Multi-Item Multi-Period Procurement Lot Sizing Problem

Table 7

GA performance results.

Problem type	Run number	Item number	Order qty. (number) period 1	Order qty. (number) period 2	Order qty. (number) period 3	Best sol. total cost (Rs)	Spread bet. best and worst solution	CPU time (Sec)
	1	1	51	59	50	1159882	144660	11
	2	1	51	59	50	1159882	144660	11
	3	1	51	59	50	1159882	144660	11
	4	1	51	59	50	1159882	144660	11
	1	1	40	120	0	1135500	121445	11
	2	1	40	120	0	1135500	121445	11
	3	1	40	120	0	1135500	121445	11
	4	1	40	120	0	1135500	121445	11
	1	1	51	59	50	3215982	336700	12
		2	130	110	140
	2	1	51	59	50	3215982	336700	12
		2	130	110	140
	3	1	51	59	50	3215982	336700	12
		2	130	110	140
	4	1	51	59	50	3215982	336700	12
		2	130	110	140
	1	1	40	120	0	3494700	316015	12
		2	130	110	140
	2	1	40	120	0	3494700	316015	12
		2	130	110	140
	3	1	40	120	0	3494700	316015	12
		2	130	110	140
	4	1	40	120	0	3494700	316015	12
		2	130	110	140
	1	1	42	118	131	7015841	493352	12
		2	131	120	129
		3	361	208	271
	2	1	40	120	0	7010875	497825	12
		2	134	108	138
		3	372	468	00
	3	1	43	117	0	7017807.	485675	12
		2	138	102	140
		3	372	468	0
	4	1	41	119	0	7021825	491372	12
		2	130	110	140
		3	377	426	377
	1	1	51	109	0	8090702	510110	12
		2	131	109	140
		3	367	227	246
		4	80	106	84
	2	1	41	119	0	8058597	514989	12
		2	140	106	164
		3	368	472	0
		4	81	96	93
	3	1	40	120	0	8067023	514867	12
		2	130	113	137
		3	367	228	245
		4	80	119	79
	4	1	40	120	0	8056263	498388	12
		2	120	112	129
		3	363	221	256
		4	83	89	98
	1	1	57	103	0	15764097	802316	13
		2	168	212	0
		3	407	395	38
		4	270	0	0
		5	634	742	509
	2	1	45	115	0	15659722	828462	13
		2	153	227	0
		3	367	208	265
		4	120	150	0
		5	674	623	588
	3	1	47	113	0	15736621	785438	13
		2	164	216	0
		3	312	254	274
		4	270	0	0
		5	828	446	611
	4	1	48	112	0	15648478	790905	13
		2	165	215	0
		3	369	407	64
		4	270	0	0
		5	600	665	620
	1	1	105	55	0	25260387	675846	13
		2	170	210	0
		3	364	209	267
		4	270	0	0
		5	620	651	614
		6	426	442	457
	2	1	54	106	0
		2	159	221	0	25287605	692205	18
		3	370	214	256
		4	149	93	28
		5	603	662	620
		6	425	440	460
	3	1	57	103	0	25307731.25	699552.5	13
		2	157	223	0
		3	430	387	23
		4	150	120	0
		5	617	650	618
		6	428	438	459
	4	1	81	79	0	25305686	658103	13
		2	167	213	0
		3	373	223	244
		4	118	137	15
		5	602	665	618
		6	428	437	460