No, -p 0 makes there be no worker processes which is the default, but that
won't change the linear algebra threads. Instead, if you want to have BLAS
use 1 thread, use blas_set_num_threads(1).
On Friday, May 6, 2016 at 6:02:01 AM UTC-7, Jorge Fernández de Cossío Díaz
wrote:
>
> I am doing linea
I am doing linear algebra. So if I want to force serial computation, I
should do julia -p 1 myscript.jl?
Will try this next week and let you know. (I don't access to the cluster
now). Thanks.
On Thu, May 5, 2016 at 6:41 PM, James Fairbanks
wrote:
> If the code is not parallel, then you should no
If the code is not parallel, then you should not request multiple
processors.
The builtin BLAS are set up for multiple threads by default.
If you are doing a lot of linear algebra, then that will be parallel
already.
If you do julia -p then the BLAS are in serial.
James
If I run a julia script on a cluster, should I request more than one
process? (My calculation is not parallel)
On Thursday, May 5, 2016 at 5:01:52 PM UTC-4, Yichao Yu wrote:
>
> On Thu, May 5, 2016 at 3:50 PM, Jorge Fernández de Cossío Díaz
> > wrote:
> > In my system, running julia from the co
On Thu, May 5, 2016 at 3:50 PM, Jorge Fernández de Cossío Díaz
wrote:
> In my system, running julia from the console to launch the REPL launches 3
> processes named Julia.
> If I execute a julia script containing no parallel code, like
>
> julia myscript.jl
>
> I also get 3 processes, and all thre
In my system, running julia from the console to launch the REPL launches 3
processes named Julia.
If I execute a julia script containing no parallel code, like
julia myscript.jl
I also get 3 processes, and all three seem to do work.
I have NOT aliased julia to julia -p 3.
I am using Ubuntu 15.
