Julia invoke script on existing REPL from command line
I want to run a Julia script from window command line, but it seems everytime I run > Julia code.jl, a new instance of Julia is created and the initiation time (package loading, compiling?) is quite long.
Is there a way for me to skip this initiation time by running the script on the current REPL/Julia instance? (which usually saves me 50% of running time).
I am using Julia 1.0.
Thank you,
cmd julia read-eval-print-loop
asked Nov 15 '18 at 16:08
Huy TranHuy Tran
112
add a comment |
I want to run a Julia script from window command line, but it seems everytime I run > Julia code.jl, a new instance of Julia is created and the initiation time (package loading, compiling?) is quite long.
Is there a way for me to skip this initiation time by running the script on the current REPL/Julia instance? (which usually saves me 50% of running time).
I am using Julia 1.0.
Thank you,
cmd julia read-eval-print-loop
asked Nov 15 '18 at 16:08
Huy TranHuy Tran
112
add a comment |
I want to run a Julia script from window command line, but it seems everytime I run > Julia code.jl, a new instance of Julia is created and the initiation time (package loading, compiling?) is quite long.
Is there a way for me to skip this initiation time by running the script on the current REPL/Julia instance? (which usually saves me 50% of running time).
I am using Julia 1.0.
Thank you,
cmd julia read-eval-print-loop
asked Nov 15 '18 at 16:08
Huy TranHuy Tran
112
I want to run a Julia script from window command line, but it seems everytime I run > Julia code.jl, a new instance of Julia is created and the initiation time (package loading, compiling?) is quite long.
Is there a way for me to skip this initiation time by running the script on the current REPL/Julia instance? (which usually saves me 50% of running time).
I am using Julia 1.0.
Thank you,
cmd julia read-eval-print-loop
cmd julia read-eval-print-loop
asked Nov 15 '18 at 16:08
Huy TranHuy Tran
112
asked Nov 15 '18 at 16:08
Huy TranHuy Tran
112
asked Nov 15 '18 at 16:08
Huy TranHuy Tran
112
asked Nov 15 '18 at 16:08
Huy TranHuy Tran
112
asked Nov 15 '18 at 16:08
Huy TranHuy Tran
112
112
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
There are several possible solutions. All of them involve different ways of sending commands to a running Julia session. The first few that come to my mind are:
- use sockets as explained in https://docs.julialang.org/en/v1/manual/networking-and-streams/#A-simple-TCP-example-1
- set up a HTTP server e.g. using https://github.com/JuliaWeb/HTTP.jl
- use named pipes, as explained in Named pipe does not wait until completion in bash
- communicate e.g. through the file system (e.g. make Julia scan some folder for
.jlfiles and if it finds them there they get executed and moved to another folder or deleted) - this is probably simplest to implement correctly
In all the solutions you can send the command to Julia by executing some shell command.
No matter which approach you prefer the key challenge is sanitizing the code to handle errors properly (i.e. a situation when you sent some command to the Julia session and it crashes or when you send requests faster than Julia is able to handle them). This is especially important if you want the Julia server to be detached from the terminal.
As a side note: when using the Distributed module from stdlib in Julia for multiprocessing you actually do a very similar thing (but the communication is Julia to Julia) so you can also have a look how this module is implemented to get the feeling how it can be done.
answered Nov 15 '18 at 19:10
Bogumił KamińskiBogumił Kamiński
14.9k21422
Thank you. I will look into this. Currently, what I do is using a 'while(true) sleep(1)' to listen to the trigger signal file, which is kinda like a server I guess.
– Huy Tran
Nov 15 '18 at 22:39
Yes - this is something like solution four I have described, where you achieve synchronization via the file system.
– Bogumił Kamiński
Nov 15 '18 at 22:42
add a comment |
You can use include:
julia> include("code.jl")
answered Nov 15 '18 at 16:36
fredrikekrefredrikekre
2,0261716
Hi, it should be from terminal (cmd), not from the current running julia REPL.
– Huy Tran
Nov 15 '18 at 16:50
add a comment |
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53323489%2fjulia-invoke-script-on-existing-repl-from-command-line%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
There are several possible solutions. All of them involve different ways of sending commands to a running Julia session. The first few that come to my mind are:
- use sockets as explained in https://docs.julialang.org/en/v1/manual/networking-and-streams/#A-simple-TCP-example-1
- set up a HTTP server e.g. using https://github.com/JuliaWeb/HTTP.jl
- use named pipes, as explained in Named pipe does not wait until completion in bash
- communicate e.g. through the file system (e.g. make Julia scan some folder for
.jlfiles and if it finds them there they get executed and moved to another folder or deleted) - this is probably simplest to implement correctly
In all the solutions you can send the command to Julia by executing some shell command.
No matter which approach you prefer the key challenge is sanitizing the code to handle errors properly (i.e. a situation when you sent some command to the Julia session and it crashes or when you send requests faster than Julia is able to handle them). This is especially important if you want the Julia server to be detached from the terminal.
As a side note: when using the Distributed module from stdlib in Julia for multiprocessing you actually do a very similar thing (but the communication is Julia to Julia) so you can also have a look how this module is implemented to get the feeling how it can be done.
answered Nov 15 '18 at 19:10
Bogumił KamińskiBogumił Kamiński
14.9k21422
Thank you. I will look into this. Currently, what I do is using a 'while(true) sleep(1)' to listen to the trigger signal file, which is kinda like a server I guess.
– Huy Tran
Nov 15 '18 at 22:39
Yes - this is something like solution four I have described, where you achieve synchronization via the file system.
– Bogumił Kamiński
Nov 15 '18 at 22:42
add a comment |
There are several possible solutions. All of them involve different ways of sending commands to a running Julia session. The first few that come to my mind are:
- use sockets as explained in https://docs.julialang.org/en/v1/manual/networking-and-streams/#A-simple-TCP-example-1
- set up a HTTP server e.g. using https://github.com/JuliaWeb/HTTP.jl
- use named pipes, as explained in Named pipe does not wait until completion in bash
- communicate e.g. through the file system (e.g. make Julia scan some folder for
.jlfiles and if it finds them there they get executed and moved to another folder or deleted) - this is probably simplest to implement correctly
In all the solutions you can send the command to Julia by executing some shell command.
No matter which approach you prefer the key challenge is sanitizing the code to handle errors properly (i.e. a situation when you sent some command to the Julia session and it crashes or when you send requests faster than Julia is able to handle them). This is especially important if you want the Julia server to be detached from the terminal.
As a side note: when using the Distributed module from stdlib in Julia for multiprocessing you actually do a very similar thing (but the communication is Julia to Julia) so you can also have a look how this module is implemented to get the feeling how it can be done.
answered Nov 15 '18 at 19:10
Bogumił KamińskiBogumił Kamiński
14.9k21422
Thank you. I will look into this. Currently, what I do is using a 'while(true) sleep(1)' to listen to the trigger signal file, which is kinda like a server I guess.
– Huy Tran
Nov 15 '18 at 22:39
Yes - this is something like solution four I have described, where you achieve synchronization via the file system.
– Bogumił Kamiński
Nov 15 '18 at 22:42
add a comment |
There are several possible solutions. All of them involve different ways of sending commands to a running Julia session. The first few that come to my mind are:
- use sockets as explained in https://docs.julialang.org/en/v1/manual/networking-and-streams/#A-simple-TCP-example-1
- set up a HTTP server e.g. using https://github.com/JuliaWeb/HTTP.jl
- use named pipes, as explained in Named pipe does not wait until completion in bash
- communicate e.g. through the file system (e.g. make Julia scan some folder for
.jlfiles and if it finds them there they get executed and moved to another folder or deleted) - this is probably simplest to implement correctly
In all the solutions you can send the command to Julia by executing some shell command.
No matter which approach you prefer the key challenge is sanitizing the code to handle errors properly (i.e. a situation when you sent some command to the Julia session and it crashes or when you send requests faster than Julia is able to handle them). This is especially important if you want the Julia server to be detached from the terminal.
As a side note: when using the Distributed module from stdlib in Julia for multiprocessing you actually do a very similar thing (but the communication is Julia to Julia) so you can also have a look how this module is implemented to get the feeling how it can be done.
answered Nov 15 '18 at 19:10
Bogumił KamińskiBogumił Kamiński
14.9k21422
There are several possible solutions. All of them involve different ways of sending commands to a running Julia session. The first few that come to my mind are:
- use sockets as explained in https://docs.julialang.org/en/v1/manual/networking-and-streams/#A-simple-TCP-example-1
- set up a HTTP server e.g. using https://github.com/JuliaWeb/HTTP.jl
- use named pipes, as explained in Named pipe does not wait until completion in bash
- communicate e.g. through the file system (e.g. make Julia scan some folder for
.jlfiles and if it finds them there they get executed and moved to another folder or deleted) - this is probably simplest to implement correctly
In all the solutions you can send the command to Julia by executing some shell command.
No matter which approach you prefer the key challenge is sanitizing the code to handle errors properly (i.e. a situation when you sent some command to the Julia session and it crashes or when you send requests faster than Julia is able to handle them). This is especially important if you want the Julia server to be detached from the terminal.
As a side note: when using the Distributed module from stdlib in Julia for multiprocessing you actually do a very similar thing (but the communication is Julia to Julia) so you can also have a look how this module is implemented to get the feeling how it can be done.
answered Nov 15 '18 at 19:10
Bogumił KamińskiBogumił Kamiński
14.9k21422
answered Nov 15 '18 at 19:10
Bogumił KamińskiBogumił Kamiński
14.9k21422
answered Nov 15 '18 at 19:10
Bogumił KamińskiBogumił Kamiński
14.9k21422
answered Nov 15 '18 at 19:10
Bogumił KamińskiBogumił Kamiński
14.9k21422
14.9k21422
Thank you. I will look into this. Currently, what I do is using a 'while(true) sleep(1)' to listen to the trigger signal file, which is kinda like a server I guess.
– Huy Tran
Nov 15 '18 at 22:39
Yes - this is something like solution four I have described, where you achieve synchronization via the file system.
– Bogumił Kamiński
Nov 15 '18 at 22:42
add a comment |
Thank you. I will look into this. Currently, what I do is using a 'while(true) sleep(1)' to listen to the trigger signal file, which is kinda like a server I guess.
– Huy Tran
Nov 15 '18 at 22:39
Yes - this is something like solution four I have described, where you achieve synchronization via the file system.
– Bogumił Kamiński
Nov 15 '18 at 22:42
Thank you. I will look into this. Currently, what I do is using a 'while(true) sleep(1)' to listen to the trigger signal file, which is kinda like a server I guess.
– Huy Tran
Nov 15 '18 at 22:39
Thank you. I will look into this. Currently, what I do is using a 'while(true) sleep(1)' to listen to the trigger signal file, which is kinda like a server I guess.
– Huy Tran
Nov 15 '18 at 22:39
Yes - this is something like solution four I have described, where you achieve synchronization via the file system.
– Bogumił Kamiński
Nov 15 '18 at 22:42
Yes - this is something like solution four I have described, where you achieve synchronization via the file system.
– Bogumił Kamiński
Nov 15 '18 at 22:42
add a comment |
You can use include:
julia> include("code.jl")
answered Nov 15 '18 at 16:36
fredrikekrefredrikekre
2,0261716
Hi, it should be from terminal (cmd), not from the current running julia REPL.
– Huy Tran
Nov 15 '18 at 16:50
add a comment |
You can use include:
julia> include("code.jl")
answered Nov 15 '18 at 16:36
fredrikekrefredrikekre
2,0261716
Hi, it should be from terminal (cmd), not from the current running julia REPL.
– Huy Tran
Nov 15 '18 at 16:50
add a comment |
You can use include:
julia> include("code.jl")
answered Nov 15 '18 at 16:36
fredrikekrefredrikekre
2,0261716
You can use include:
julia> include("code.jl")
answered Nov 15 '18 at 16:36
fredrikekrefredrikekre
2,0261716
answered Nov 15 '18 at 16:36
fredrikekrefredrikekre
2,0261716
answered Nov 15 '18 at 16:36
fredrikekrefredrikekre
2,0261716
answered Nov 15 '18 at 16:36
fredrikekrefredrikekre
2,0261716
2,0261716
Hi, it should be from terminal (cmd), not from the current running julia REPL.
– Huy Tran
Nov 15 '18 at 16:50
add a comment |
Hi, it should be from terminal (cmd), not from the current running julia REPL.
– Huy Tran
Nov 15 '18 at 16:50
Hi, it should be from terminal (cmd), not from the current running julia REPL.
– Huy Tran
Nov 15 '18 at 16:50
Hi, it should be from terminal (cmd), not from the current running julia REPL.
– Huy Tran
Nov 15 '18 at 16:50
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53323489%2fjulia-invoke-script-on-existing-repl-from-command-line%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
