R Benchmark 2.5

Processor type

HPG1 = AMD Opteron 6378 @ 2.4GHz

HPG2 = Intel Haswell Intel Xeon E5-2698 v3 @ 2.30GHz (testing)

Benchmark Name	Time, sec
R version	3.0.2		3.2.0
Processor type	HPG1	HPG2	HPG1	HPG2
I. Matrix calculation
Creation, transp., deformation of a 2500x2500 matrix	1.69	1.20	1.58	1.07
2400x2400 normal distributed random matrix ^1000	2.70	1.30	2.69	1.32
Sorting of 7,000,000 random values	1.32	0.81	1.36	0.87
2800x2800 cross-product matrix (b = a' * a)	25.20	13.18	2.73	0.79
Linear regr. over a 3000x3000 matrix (c = a \ b')	12.57	5.92	1.37	0.41
Trimmed geom. mean (2 extremes eliminated)	3.86	2.10	1.80	0.90
II. Matrix functions
FFT over 2,400,000 random values	0.62	0.32	0.64	0.29
Eigenvalues of a 640x640 random matrix	1.75	0.93	0.81	0.35
Determinant of a 2500x2500 random matrix	9.04	4.29	1.19	0.39
Cholesky decomposition of a 3000x3000 matrix	9.27	5.07	0.99	0.40
Inverse of a 1600x1600 random matrix	9.14	3.37	1.18	0.31
Trimmed geom. mean (2 extremes eliminated)	5.25	2.38	0.98	0.35
III. Programmation
3,500,000 Fibonacci numbers calculation (vector calc)(sec)	2.97	1.47	2.70	1.35
Creation of a 3000x3000 Hilbert matrix (matrix calc) (sec)	0.62	0.43	0.44	0.32
Grand common divisors of 400,000 pairs (recursion)	1.72	1.05	0.86	0.49
Creation of a 500x500 Toeplitz matrix (loops)	1.21	0.52	0.74	0.34
Escoufier's method on a 45x45 matrix (mixed)	0.88	0.62	0.62	0.40
Trimmed geom. mean (2 extremes eliminated)	1.22	0.70	0.74	0.41
Total time for all 15 tests	80.71	40.48	19.90	9.10
Overall mean (sum of I, II and III trimmed means/3)_ (sec)	2.91	1.51	1.09	0.50