Generating Multibillion Element Unstructured Meshes on Distributed Memory Parallel Machines

Table 2

Mesh generation results.

Geometry	Number of cores	Allocated job memory (TB)	Refinement levels	Mesh size (M)		Time taken by (s)			Estimated efficiency (%)	Estimated speedup
				Coarse	Fine	Coarse	Fine	Total
oneram6.stl	1024	7.2	4	0.2	156.1	78.95	96.08	175.03	54.94	563
	2048	14.3	4	0.2	174.8	78.93	95.38	174.31	54.74	1121
	4096	14.3	4	0.2	183.1	85.67	55.16	140.83	39.18	1605
	8192	14.3	4	0.2	189.6	81.97	51.27	133.24	38.49	3153
	1024	7.2	5	0.2	1014.7	78.96	715.3	794.26	90.07	922
	2048	14.3	5	0.2	1114.3	78.89	521.68	600.57	86.87	1779
	4096	14.3	5	0.2	1123.3	82.73	316.04	398.77	79.26	3246
	8192	14.3	5	0.2	1152.7	82.14	152.66	234.8	65.02	5327
	1024	7.2	4	1.2	929.5	483.15	700.91	1184.06	59.24	607
	2048	14.3	4	1.2	970.9	482.69	331.96	814.65	40.78	835
	4096	14.3	4	1.2	909.1	537.04	202.96	740	27.44	1124
	8192	14.3	4	1.2	1028.9	510.94	152.93	663.87	23.05	1888
	2048	14.3	5	1.2	7030.7	483.16	2719.29	3202.45	84.92	1739
	4096	14.3	5	1.2	6393.5	538	1831.23	2369.23	77.3	3166
	8192	14.3	5	1.2	7209.8	510.59	713.66	1224.25	58.3	4776
sphere.geo	1024	7.2	4	0.2	146.7	43.88	69.72	113.6	61.41	629
	2048	14.3	4	0.2	176.7	44.01	32.32	76.33	42.37	868
	4096	14.3	4	0.2	198.7	47.02	23.6	70.62	33.43	1369
	8192	14.3	4	0.2	217	45.04	10.8	55.84	19.35	1585
	1024	7.2	5	0.2	1048.4	43.95	488.25	532.2	91.75	940
	2048	14.3	5	0.2	1278.4	44.02	230.87	274.89	83.99	1720
	4096	14.3	5	0.2	1367.6	47	138.46	185.46	74.66	3058
	8192	14.3	5	0.2	1476.7	46.74	92.01	138.75	66.32	5433
	1024	7.2	5	0.3	1625.5	181.18	796.93	978.11	81.49	835
	2048	14.3	5	0.3	1773.3	184.42	583.59	768.01	76	1556
	4096	14.3	5	0.3	2134.4	242.52	204.96	447.48	45.82	1877
	8192	14.3	5	0.3	2163.3	232.15	133.28	365.43	36.48	2988
sphere.stl	1024	7.2	4	0.4	296.4	94.13	114.04	208.17	54.83	561
	2048	14.3	4	0.4	301.6	93.81	69.17	162.98	42.47	870
	4096	14.3	4	0.4	365.4	97.91	45.35	143.26	31.67	1297
	8192	14.3	4	0.4	417.4	96.31	40.41	136.72	29.57	2422
	1024	7.2	5	0.4	2120	94	924.97	1018.97	90.78	930
	2048	14.3	5	0.4	2131.1	93.76	525.56	619.32	84.87	1738
	4096	14.3	5	0.4	2584.5	97.82	287.31	385.13	74.61	3056
	8192	14.3	5	0.4	2840.7	96.59	166.04	262.63	63.23	5180
	1024	7.2	4	1.4	829.5	286.32	319.88	606.2	52.81	541
	2048	14.3	4	1.4	931.4	286.96	201.49	488.45	41.28	845
	4096	14.3	4	1.4	900.4	299.03	150.31	449.34	33.47	1371
	8192	14.3	4	1.4	1001.5	294.21	105.18	399.39	26.34	2158
	1024	7.2	5	1.4	6392.3	286.51	2938.7	3225.21	91.13	933
	2048	14.3	5	1.4	6847.5	286.88	2212.16	2499.04	88.53	1813
	4096	14.3	5	1.4	6283.1	298.83	912.7	1211.53	75.34	3086
	8192	14.3	5	1.4	7053.6	293.56	513.41	806.97	63.63	5212
shaft.geo	1024	7.2	4	0.2	139.6	37.37	52.55	89.92	58.48	599
	2048	14.3	4	0.2	166.8	37.4	28.61	66.01	43.37	888
	4096	14.3	4	0.2	182.5	39.01	22.11	61.12	36.19	1482
	8192	14.3	4	0.2	221.4	38.42	25.73	64.15	40.12	3286
	1024	7.2	4	0.4	281.4	75.21	110.85	186.06	59.62	610
	2048	14.3	4	0.4	295.6	75.7	55.71	131.41	42.42	869
	4096	14.3	4	0.4	351.7	78.87	40.67	119.54	34.04	1394
	8192	14.3	4	0.4	382.2	77.74	36.23	113.97	31.8	2605
	1024	7.2	5	0.2	948.4	37.38	515.95	553.33	93.25	955
	2048	14.3	5	0.2	1139.9	37.47	221.87	259.34	85.56	1752
	4096	14.3	5	0.2	1191.5	39	125.79	164.79	76.34	3127
	8192	14.3	5	0.2	1340.3	38.42	82.55	120.97	68.24	5591
	1024	7.2	5	0.4	1991.3	75.21	920.31	995.52	92.45	947
	2048	14.3	5	0.4	2081.9	75.37	486.93	562.3	86.6	1774
	4096	14.3	5	0.4	2475.1	78.81	260.88	339.69	76.81	3146
	8192	14.3	5	0.4	2568.2	77.84	168.31	246.15	68.38	5602