# Slurm Manager not working

**URL:** <https://discourse.julialang.org/t/slurm-manager-not-working/94975>\
**Category:** New to Julia\
**Tags:** question, package\
**Created:** [February 21, 2023, 7:04pm UTC](https://discourse.julialang.org/t/slurm-manager-not-working/94975 "2023-02-21T19:04:01Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Zerosum](https://avatars.discourse-cdn.com/v4/letter/z/b2d939/32.png) [@Zerosum](https://discourse.julialang.org/u/Zerosum)\
**Post date:** [February 21, 2023, 7:04pm UTC](https://discourse.julialang.org/t/slurm-manager-not-working/94975/1 "2023-02-21T19:04:01Z")

</div>

I am trying to use the ClusterManagers package for parallel computing, but I am getting an error message that I don’t understand. I am writing my code in a Jupyter notebook in VS Code, and this is the part of the initial code that I am trying to start from:

```julia
using ClusterManagers
using Distributed

OnCluster = true #set to false to run locally
addWorkers = true #set to false to run serially
println("OnCluster = $(OnCluster)")

# Current number of workers
currentWorkers = nworkers()
println("Initial number of workers = $(currentWorkers)")

# Increase the number of workers available
maxNumberWorkers = 10
if addWorkers == true
	if OnCluster == true
	  addprocs(SlurmManager(maxNumberWorkers))
	else
	  addprocs(maxNumberWorkers)
	end
end

```

However, I get an error message:

```julia
OnCluster = true
Initial number of workers = 1
Error launching Slurm job:
Output exceeds the size limit. Open the full output data in a text editor
TaskFailedException

    nested task error: IOError: could not spawn `srun -J julia-59209 -n 10 -o '/Users/my_name/Documents/my_project/Julia Code/Quantitative (simple)/./julia-59209-16770052037-%4t.out' -D '/Users/my_name/Documents/my_project/Julia Code/Quantitative (simple)' /System/Volumes/Data/Applications/Julia-1.8.app/Contents/Resources/julia/bin/julia --worker=arf01ZXwDrm50sEj`: no such file or directory (ENOENT)
    Stacktrace:
     [1] _spawn_primitive(file::String, cmd::Cmd, stdio::Vector{Union{RawFD, IO}})
       @ Base ./process.jl:128
     [2] #725
       @ ./process.jl:139 [inlined]
     [3] setup_stdios(f::Base.var"#725#726"{Cmd}, stdios::Vector{Union{RawFD, IO}})
       @ Base ./process.jl:223
     [4] _spawn
       @ ./process.jl:138 [inlined]
     [5] #open#734
       @ ./process.jl:393 [inlined]
     [6] open (repeats 2 times)
       @ ./process.jl:383 [inlined]
     [7] launch(manager::SlurmManager, params::Dict{Symbol, Any}, instances_arr::Vector{WorkerConfig}, c::Condition)
       @ ClusterManagers ~/.julia/packages/ClusterManagers/S7Syg/src/slurm.jl:60
     [8] (::Distributed.var"#43#46"{SlurmManager, Condition, Vector{WorkerConfig}, Dict{Symbol, Any}})()
       @ Distributed ./task.jl:484

```

It seems there might be a problem with the path, but I have no clue what to do since I have very poor knowledge of computer science. Can anyone suggest a solution? Thanks in advance.

---

<div class="post-metadata">

**Author:** ![moble](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/moble/32/23535_2.png) [@moble](https://discourse.julialang.org/u/moble)\
**Post date:** [February 22, 2023, 5:53am UTC](https://discourse.julialang.org/t/slurm-manager-not-working/94975/2 "2023-02-22T05:53:38Z")

</div>

That’s a pretty confusing error message. When it says

> no such file or directory (ENOENT)

it’s probably not referring to any of the _arguments_ in that command; it’s referring to `srun`. That is, it can’t find `srun` in the [PATH](https://en.wikipedia.org/wiki/PATH_(variable)). This may be surprising because `srun` is probably in your PATH when you run your interactive shell. I suppose your interactive-shell PATH is being set in `~/.bashrc` or something, but that isn’t sourced for whatever runs the command. Look into the differences between `~/.bashrc`, `~/.bash_profile`, `~/.profile`, etc., on your cluster.

It looks like there’s no direct way to alter [that command](https://github.com/JuliaParallel/ClusterManagers.jl/blob/14e7302f068794099344d5d93f71979aaf4fbeb3/src/slurm.jl#L59-L60). So you’ll have to figure out how to adjust your PATH correctly. Just to be sure, run

```bash
type -a srun

```

in your terminal. This will give you the full path to `srun`. Take the directory part of that full path, and add it to your PATH somewhere. It may be as easy adding something like

```julia
ENV["PATH"] = "/path/to/parent/directory:"*ENV["PATH"]

```

(where you replace `/path/to/parent/directory` with whatever the `type` command tells you, but keep that colon `:` just before the closing quote) to your julia script.

---

<div class="post-metadata">

**Author:** ![Zerosum](https://avatars.discourse-cdn.com/v4/letter/z/b2d939/32.png) [@Zerosum](https://discourse.julialang.org/u/Zerosum)\
**Post date:** [February 22, 2023, 9:04am UTC](https://discourse.julialang.org/t/slurm-manager-not-working/94975/3 "2023-02-22T09:04:13Z")

</div>

Thank you very much. I will try that. It’s kind of a shame that I only know how to open VS Code, write code, and run Julia, but I’m unable to really know what’s going on behind the scenes.

---

<div class="post-metadata">

**Author:** ![moble](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/moble/32/23535_2.png) [@moble](https://discourse.julialang.org/u/moble)\
**Post date:** [February 22, 2023, 6:37pm UTC](https://discourse.julialang.org/t/slurm-manager-not-working/94975/4 "2023-02-22T18:37:41Z")

</div>

> [@Zerosum](#):
>
> It’s kind of a shame that I only know how to open VS Code, write code, and run Julia

Well, that’s a good start! Most of us just pick things up as we go along.

Good luck.