Benilton,
Perdi de lavada... Aproveito o ensejo para abrir a campanha "Me comprem um novo laptop! :)"
abraço,
FH
Lenovo G450
Debian GNU/Linux Wheezy 32bits
Intel(R) Core(TM)2 Duo CPU 2.20GHz
4GB RAM
R 2.13.2
R Benchmark 2.5
===============
Number of times each test is run__________________________: 3
I. Matrix calculation
---------------------
Creation, transp., deformation of a 2500x2500 matrix (sec): 0.818333333333335
2400x2400 normal distributed random matrix ^1000____ (sec): 1.551
Sorting of 7,000,000 random values__________________ (sec): 1.28133333333334
2800x2800 cross-product matrix (b = a' * a)_________ (sec): 20.788
Linear regr. over a 3000x3000 matrix (c = a \ b')___ (sec): 9.72733333333333
--------------------------------------------
Trimmed geom. mean (2 extremes eliminated): 2.68383558451994
II. Matrix functions
--------------------
FFT over 2,400,000 random values____________________ (sec): 1.19933333333333
Eigenvalues of a 640x640 random matrix______________ (sec): 1.99066666666667
Determinant of a 2500x2500 random matrix____________ (sec): 8.14666666666666
Cholesky decomposition of a 3000x3000 matrix________ (sec): 6.90433333333334
Inverse of a 1600x1600 random matrix________________ (sec): 7.34233333333333
--------------------------------------------
Trimmed geom. mean (2 extremes eliminated): 4.65569795716832
III. Programmation
------------------
3,500,000 Fibonacci numbers calculation (vector calc)(sec): 1.33066666666669
Creation of a 3000x3000 Hilbert matrix (matrix calc) (sec): 0.720333333333315
Grand common divisors of 400,000 pairs (recursion)__ (sec): 1.30766666666665
Creation of a 500x500 Toeplitz matrix (loops)_______ (sec): 1.66699999999999
Escoufier's method on a 45x45 matrix (mixed)________ (sec): 0.923000000000002
--------------------------------------------
Trimmed geom. mean (2 extremes eliminated): 1.17108749649097
Total time for all 15 tests_________________________ (sec): 65.698
Overall mean (sum of I, II and III trimmed means/3)_ (sec): 2.445926201769
--- End of test ---