Re: [Help-gsl] Random vectors

[Éric Germaneau]

Dear Klaus,

Thank you for your reply.
I use the Mersenne Twister type.
Actually, I started to use MKL but I use GSL for years and like to use 
it better.
I'll take a look at your example.
Thanks again,

                          Éric.

On 04/30/2014 03:10 PM, Klaus Huthmacher wrote:
> Dear Éric,
>
> interesting question.
>
> At first I thought: What random number genererator are you using? It seems
> that the Mersenne Twister is standard but there are several others.
>
> Second, have you tried out the random engine of C++11:
> http://www.cplusplus.com/reference/random/
>
> I appended a minimal example.
>
> Best wishes and keep us informed. :)
>
> -- Klaus.
>
>
>
>
> > Dear all,
> >
> > I wonder how to generate random vectors with  GSL.
> > I'm aware of the *gsl_ran_dir_nd *routine but the numbers are normalized.
> > I need to generate random velocities for a given temperature of N
> > particles.
> > I currently call *gsl_ran_gaussian* 3N times.
> > That's too expensive.
> > I'd like to generate a 3N vector at once.
> > Is there anyway to do this with GSL?
> >
> > Thanks,
> >
> >                     Éric.
> >
> > --
> > Éric Germaneau (???), Specialist
> > Center for High Performance Computing
> > Shanghai Jiao Tong University
> > Room 205 Network Center, 800 Dongchuan Road, Shanghai 200240 China
> > M:address@hidden P:+86-136-4161-6480 W:http://hpc.sjtu.edu.cn

--
Éric Germaneau (???), Specialist
Center for High Performance Computing
Shanghai Jiao Tong University
Room 205 Network Center, 800 Dongchuan Road, Shanghai 200240 China
Email:address@hidden Mobi:+86-136-4161-6480 http://hpc.sjtu.edu.cn