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