--- /dev/null
+# contains function to compute a mesh in parallel
+from platform import java_ver
+import sys
+from tkinter import W
+import salome
+
+import time
+
+
+salome.salome_init()
+import salome_notebook
+notebook = salome_notebook.NoteBook()
+
+###
+### GEOM component
+###
+
+import GEOM
+from salome.geom import geomBuilder
+from salome.smesh import smeshBuilder
+import math
+import SALOMEDS
+
+import numpy as np
+
+geompy = geomBuilder.New()
+
+smesh = smeshBuilder.New()
+
+
+def build_seq_mesh(nbox, boxsize, offset):
+ # Create 3D faces
+ boxes = []
+ # First creating all the boxes
+ for i in range(nbox):
+ for j in range(nbox):
+ for k in range(nbox):
+
+ x_orig = i*(boxsize+offset)
+ y_orig = j*(boxsize+offset)
+ z_orig = k*(boxsize+offset)
+
+ tmp_box = geompy.MakeBoxDXDYDZ(boxsize, boxsize, boxsize)
+
+ if not i == j == k == 0:
+ box = geompy.MakeTranslation(tmp_box, x_orig,
+ y_orig, z_orig)
+ else:
+ box = tmp_box
+
+ geompy.addToStudy(box, 'box_{}:{}:{}'.format(i, j, k))
+
+ boxes.append(box)
+
+ # Create fuse of all boxes
+ all_boxes = geompy.MakeCompound(boxes)
+ geompy.addToStudy(all_boxes, 'Compound_1')
+
+ # Removing duplicates faces and edges
+ all_boxes = geompy.MakeGlueFaces(all_boxes, 1e-07)
+ geompy.addToStudy(all_boxes, 'Glued_Faces_1')
+
+ all_boxes = geompy.MakeGlueEdges(all_boxes, 1e-07)
+ geompy.addToStudy(all_boxes, 'rubik_cube')
+
+
+ # Building sequetial mesh
+ print("Creating mesh")
+ all_box_mesh = smesh.Mesh(all_boxes, "seq_mesh")
+
+ print("Adding algo")
+ algo3d = all_box_mesh.Tetrahedron(algo=smeshBuilder.NETGEN_1D2D3D)
+
+ netgen_parameters = algo3d.Parameters()
+ netgen_parameters.SetMaxSize(34.641)
+ netgen_parameters.SetMinSize(0.141421)
+ netgen_parameters.SetOptimize(1)
+ netgen_parameters.SetCheckOverlapping(0)
+ netgen_parameters.SetCheckChartBoundary(0)
+ netgen_parameters.SetFineness(5)
+ netgen_parameters.SetNbSegPerEdge(16*(boxsize//100))
+ netgen_parameters.SetNbSegPerRadius(1.5)
+ netgen_parameters.SetGrowthRate(0.15)
+ netgen_parameters.SetChordalError(-1)
+ netgen_parameters.SetChordalErrorEnabled(0)
+ netgen_parameters.SetUseSurfaceCurvature(1)
+ netgen_parameters.SetQuadAllowed(0)
+ netgen_parameters.SetCheckOverlapping(False)
+ netgen_parameters.SetNbThreads(2)
+
+ return all_boxes, all_box_mesh, netgen_parameters
+
+def run_test(nbox=2, boxsize=100):
+ """ Run sequential mesh and parallel version of it
+
+ nbox: NUmber of boxes
+ boxsize: Size of each box
+ """
+ geom, seq_mesh, netgen_parameters = build_seq_mesh(nbox, boxsize, 0)
+
+ par_mesh = smesh.ParallelMesh(geom, netgen_parameters, 6, name="par_mesh")
+
+ start = time.monotonic()
+ is_done = seq_mesh.Compute()
+ assert is_done
+ stop = time.monotonic()
+ time_seq = stop-start
+
+ start = time.monotonic()
+ is_done = par_mesh.Compute()
+ assert is_done
+ stop = time.monotonic()
+ time_par = stop-start
+
+ print(" Tetrahedron: ", seq_mesh.NbTetras(), par_mesh.NbTetras())
+ print(" Triangle: ", seq_mesh.NbTriangles(), par_mesh.NbTriangles())
+ print(" edge: ", seq_mesh.NbEdges(), par_mesh.NbEdges())
+
+ assert par_mesh.NbTetras() > 0
+ assert par_mesh.NbTriangles() > 0
+ assert par_mesh.NbEdges() > 0
+
+ print("Time elapsed (seq, par): ", time_seq, time_par)
+
+def main():
+ nbox = 2
+ boxsize = 100
+ run_test(nbox, boxsize)
+
+main()
+
