C gcc versus Intel Fortran fastest performance

How the programs are written matters! Always look at the source code.

If the fastest programs are * hand-written vector instructions, does the host language matter? You might be more interested in the less optimised programs — more seconds, less gz source code.

fannkuch-redux
source	secs	mem	gz	cpu secs
* C gcc #6	2.14	19,704	1582	8.43
* C gcc #4	14.04	19,704	1190	14.03
C gcc #5	7.29	19,704	917	28.25
C gcc #3	36.80	19,704	574	36.79
Intel Fortran #3	9.78	19,648	1164	39.00
C gcc #8	39.33	19,492	483	39.32
C gcc	39.61	19,704	514	39.60
* C gcc #2	10.19	19,704	1563	39.99
Intel Fortran	40.33	19,648	608	40.33
n-body
source	secs	mem	gz	cpu secs
* C gcc #9	2.10	19,772	1639	2.10
Intel Fortran #5	3.39	19,648	1669	3.39
* C gcc #4	4.05	19,772	1398	4.05
Intel Fortran #2	4.46	19,776	1507	4.46
Intel Fortran	4.55	19,648	1400	4.55
Intel Fortran #3	4.71	19,648	1311	4.71
C gcc #6	4.97	19,772	1186	4.97
Intel Fortran #6	5.01	19,648	1530	5.01
C gcc #2	5.19	19,772	1270	5.19
C gcc #3	5.23	19,772	1214	5.23
C gcc	5.23	19,772	1179	5.23
* C gcc #5	5.43	19,772	1436	5.43
C gcc #8	5.54	19,492	1193	5.54
C gcc #7	6.89	19,772	1250	6.88
Intel Fortran #4		Bad Output
spectral-norm
source	secs	mem	gz	cpu secs
* C gcc #6	0.40	19,772	1203	1.59
Intel Fortran #2	2.67	19,648	520	2.66
* C gcc #5	0.72	19,772	576	2.85
* C gcc #7	0.72	19,772	906	2.85
* C gcc #4	0.72	19,772	1145	2.85
Intel Fortran #3	0.73	19,648	644	2.88
C gcc #8	5.40	19,772	389	5.39
C gcc #3	1.43	19,772	470	5.70
* C gcc #2		Make Error
mandelbrot
source	secs	mem	gz	cpu secs
* C gcc #6	1.28	33,400	1147	5.10
C gcc #5	1.63	33,512	788	6.31
Intel Fortran #6	2.71	79,488	669	8.55
* C gcc #4	3.52	33,060	805	13.89
* C gcc	3.49	32,864	828	13.92
* C gcc #7	3.51	33,276	1000	13.95
* C gcc #3	3.53	32,860	769	14.09
C gcc #9	4.07	33,128	700	15.70
Intel Fortran #7	4.08	79,508	965	16.18
C gcc #8	25.15	19,496	412	25.15
Intel Fortran #4	9.85	79,744	626	25.23
Intel Fortran #5	32.58	43,648	528	32.58
fasta
source	secs	mem	gz	cpu secs
C gcc #3	0.78	19,772	1469	0.78
C gcc #5	1.24	19,616	1286	1.24
Intel Fortran #4	1.34	19,648	1355	1.34
C gcc #2	2.77	19,772	1299	2.76
C gcc #6	0.94	19,772	1936	2.78
C gcc #7	0.82	19,772	2276	3.24
C gcc	3.70	19,772	1213	3.70
Intel Fortran	5.83	19,648	1193	5.83
Intel Fortran #3	6.19	19,648	1217	6.19
C gcc #8	8.06	19,776	839	8.06
C gcc #4		Make Error
k-nucleotide
source	secs	mem	gz	cpu secs
C gcc	3.84	130,408	1512	12.45
Intel Fortran		Make Error
reverse-complement
source	secs	mem	gz	cpu secs
* C gcc #7	0.44	499,992	1899	0.59
C gcc #9	0.48	500,032	1551	0.76
C gcc #6	0.96	675,260	828	1.36
C gcc #5	1.53	994,108	654	1.53
C gcc #2	1.06	994,536	757	1.58
Intel Fortran	3.33	986,304	1026	3.33
* C gcc #4	3.70	500,452	716	3.69
Intel Fortran #2	42.90	769,748	778	42.89
binary-trees
source	secs	mem	gz	cpu secs
C gcc #2	1.53	169,284	816	4.18
C gcc #3	1.96	134,540	842	4.70
Intel Fortran #2	2.22	140,544	1155	6.86
C gcc #8	21.08	285,544	607	21.08
C gcc	21.67	264,244	660	21.67
C gcc #5	8.77	351,332	914	31.93
Intel Fortran	32.59	525,824	780	32.59
pidigits
source	secs	mem	gz	cpu secs
C gcc #2	0.74	19,772	422	0.74
C gcc	0.74	19,772	459	0.74
Intel Fortran #4	0.88	19,648	987	0.88
regex-redux
source	secs	mem	gz	cpu secs
C gcc #5	0.81	152,500	1403	2.03
Intel Fortran	0.96	179,724	2229	3.09
C gcc #2	3.21	103,288	1121	3.21
C gcc #4	0.97	152,264	1237	3.28
C gcc #3	1.72	103,736	1273	3.31
C gcc	gcc (Ubuntu 14.2.0-4ubuntu2) 14.2.0
Intel Fortran	ifx (IFX) 2024.1.0 20240308