Julia on remote Linux server - basics

[Hayk Aleksanyan]

I am trying to run Julia on remote Linux server from my desktop Ubuntu computer using the terminal window.
The server has julia 0.4.2 installed, and I am able to initiate ssh connection with the server.

My questions are really standard, but I was not able to find answers on the internet.
So could anyone please give some hints on the following.


1. how to invoke Julia on remote Linux server using the Terminal window, given that the connection has already been established ?

In particular, I've written a Julia module which I want to use on the server for some speed-up.
The module itself works fine.


2. Will Julia automatically utilize all available resources (cpu-s) of the server or I need to adjust the code manually to achieve that ?
E.g. if the process concerns standard matrix operations, or loops in general?

Many thanks in advance,
Hayk

[FQ]

> I am trying to run Julia on remote Linux server from my desktop Ubuntu

> computer using the *terminal window*.
> The server has julia *0.4.2* installed, and I am able to initiate ssh

> connection with the server.
>
> My questions are really standard, but I was not able to find answers on
> the internet.
> So could anyone please give some hints on the following.
>
>
> 1. how to invoke Julia on remote Linux server using the Terminal window,
> given that the connection has already been established ?

type

julia

in the terminal and press enter to start a julia console. if you want to
execute a julia script in a file, instead type

julia filename.jl

if the file's first line is
#!/usr/bin/env julia
you can also make the file executable with
chmod +x filename.jl
and run it with
./filename.jl
instead.

> In particular, I've written a Julia module which I want to use on the
> server for some speed-up.
> The module itself works fine.
>
>
> 2. Will Julia automatically utilize all available resources (cpu-s) of
> the server or I need to adjust the code manually to achieve that ?
> E.g. if the process concerns standard matrix operations, or loops in
> general?

Julia does some things like in parallel, however you can manually
optimise your code:

http://julia-demo.readthedocs.org/en/latest/manual/parallel-computing.html

You can use the program htop (type htop in another terminal with ssh to
the server) to watch cpu usage.