Detailed Timings for Figures

This appendix contains the measured runtimes of the various benchmarks used to generate the figures throughout the report.

Table 5: Runtimes of 125³ FFT on HECToR Phase 2a (Figure 2)

Cores	32	64	128	256	512	1024	2048	4096
MPI Only	37.7	21.9	11.0	8.1	7.8	8.5	12.4
2 threads	40.0	18.6	11.5	6.7	4.9	4.6	4.8
4 threads	44.7	20.3	10.7	6.0	4.4	3.1	2.8	3.3

Table 6: Runtimes of 125³ FFT on Rosa (Figure 3)

Cores	36	72	144	288	576	1152	2304	4608
MPI Only	40.4	29.4	14.7	10.8	12.5	19.0	26.1
2 threads	39.7	22.9	17.8	8,1	6.9	7.2	11.0
6 threads	47.3	26.2	13.3	8.3	7.0	4.0	3.5	3.8
12 threads	57.6	32.3	19.5	8.7	5.3	5.1	3.4	3.7

Table 7: Runtimes of RS2PW on Rosa (Figure 4)

Cores	36	72	144	288	576	1152	2304	4608
MPI	21.2	13.1	9.9	7.7	9.7	14.7
New MPI	20.3	13.3	11.3	8.2	9.0	6.7	9.6
2 threads	14.2	11.1	8.5	6.2	7.1	6.3	5.8	5.7
6 threads	12.1	10.2	6.7	5.4	5.2	5.3	5.5	3.9
12 threads	19.5	12.6	9.5	6.6	7.2	5.5	5.1	4.0

Table 8: Runtimes of bench_64 on HECToR Phase 2a (Figure 8)

Cores	16	32	64	128	256	512	1024	2048
MPI (Original)	293	166	99	78	60	82	90
MPI Only	326	185	110	77	63	65	66
2 threads	376	202	120	75	58	48	60
4 threads	424	251	144	86	58	58	51	80

Table 9: Runtimes of bench_64 on Rosa (Figure 9)

Cores	36	72	144	288	576	1152	2304	4608
MPI (Original)	151	129	84	124	116	217
MPI Only	172	133	85	102	92	128
2 threads	198	122	96	72	74	91
6 threads	350	207	125	91	66	63	66
12 threads	527	279	172	112	84	67	63	71

Table 10: Runtimes of bench_64 on HECToR Phase 2b (Figure 10)

Cores	24	48	72	144	288	576	1152	2304	4608	9126
MPI (Original)	190	147	156	127	172	198	330
MPI Only	211	169	173	133	155	161	232
2 threads	259	162	142	131	93	116	111	153
6 threads	335	219	203	146	109	95	82	89
12 threads		335	281	194	137	109	89	100
24 threads				366	263	191	155	141	129	140

Table 11: Runtimes of W216 on Rosa (Figure 11)

Cores	72	144	288	576	1152	2304	4608	9216
MPI (Original)	5728	3041	2214	1662	3897
MPI Only	5694	2964	2137	1623	2335
2 threads	5810	3419	1881	1383	1086	1047
6 threads	8230	4439	2842	1907	1323	914	816	854
12 threads	12113	6477	3515	2356	1487	950	701	665