[R] faster mvrnorm alternative

Hello, does anybody know another faster function for random multivariate normal variable simulation? I'm using mvrnorm, but as profiling shows, my algorithm spends approximately 50 % in executing mvrnorm function. Maybe some of you knows much faster function for multivariate normal simulation? I

[R] parralellization without clustering (snow)

Hi, I'm running R in supercomputer where clusters already are configurered, i.e. number of procesors are predefined and I cannot change it. Can I still use package like snow? I'm worrying that command like makeCluster won't be very 'healthy'. Or its ok to use it? Thanks in advance, Tomas -- View

[R] set random numbers seed for different cpu's

Hi I'm running the same R script (throuth linux shell) of several cpu's. This R program uses random numbers and the result should be different every time. But if put jobs (through Torque) for several cpu's I get the same result. As a resealt my program saves numbers in file with randomly generate