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 ---