Issue with multiprocessing inside SALOME

Use of the platform
1

Hello! I am trying to parallelise a SALOME script using Python’s multiprocessing library but I’m running into some issues.

Consider the following snippet

import sys
import salome
import random
import multiprocessing as mp

salome.salome_init()
import salome_notebook
notebook = salome_notebook.NoteBook()


###
### GEOM component
###

import GEOM
from salome.geom import geomBuilder
import math
import SALOMEDS

geompy = geomBuilder.New()

def workerFun(args):
    return geompy.MakeVertex(random.uniform(0, 10), random.uniform(0, 10), random.uniform(0, 10))

N_PROCESSES = 1

params = range(20)

if N_PROCESSES > 1:
    p = mp.Pool(N_PROCESSES)
    pipes = list(p.map(workerFun, params))
    p.close()
    p.join()
else:
    pipes = list(map(workerFun, params))

[geompy.addToStudy( v, 'Vertex_{}'.format(idx)) for idx, v in enumerate(pipes)]

If I run it as it is, it will create 20 points and add them to the study. If I set, for example, N_PROCESSES = 2, it will run but print a series of addToStudy() failed and, in fact, it will not create any points.

Does anyone know why this is happening or how to solve this?
Thanks in advance!