Segmentation fault at rmprocs()

General Usage
1

Hello, I am trying to run this simple MWE.jl file in a HPC:

using Distributed

addprocs(2)
println("Processes added")

rmprocs(workers())
println("Processes removed")

If I run julia MWE.jl in my laptop, it works fine. However, if I run it in a HPC (say, e.g., in the master node), I get

Processes added
Violación de segmento (`core' generado)

If I comment the line rmprocs(workers()), then the message Processes removed is printed but still the program ends with segmentation fault.

Help would be very much appreciated.

2

Please read this resource before proceeding:

HPC clusters might require the use of a job scheduler to manage processes. Perhaps your master node has some additional restrictions. Hard to know.

3

I have just realized that running sudo julia MWE.jl works fine. Is this a Julia-related issue or is it related to the administration of the HPC? Julia is installed in /opt folder.

4

I have tried something similar, but running julia -p4 ... or similar yields the segmentation fault. Whenever I try to work with several processes in julia I get the segmentation fault, unless it is under sudo permission.

5

Unsetting LD_LIBRARY_PATH fixed the problem. Is a similar issue than this one, this one and this one.