# contains function to compute a mesh in parallel
-from platform import java_ver
-import sys
-try:
- from tkinter import W
-except:
- print("warning: could not import tkinter")
-
import salome
-import time
-
-
salome.salome_init()
import salome_notebook
notebook = salome_notebook.NoteBook()
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()
+nbox = 2
+boxsize = 100
+offset = 0
+# 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
-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):
+ geompy.addToStudy(box, 'box_{}:{}:{}'.format(i, j, k))
- 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)
-
- print("Creating Parallel Mesh")
- par_mesh = smesh.ParallelMesh(geom, name="par_mesh")
- par_mesh.AddGlobalHypothesis(netgen_parameters)
- param = par_mesh.GetParallelismSettings()
- param.SetNbThreads(6)
-
- assert param.GetNbThreads() == 6, param.GetNbThreads()
-
- print("Starting sequential compute")
- start = time.monotonic()
- is_done = seq_mesh.Compute()
- if not is_done:
- raise Exception("Error when computing Mesh")
-
- stop = time.monotonic()
- time_seq = stop-start
-
- print("Starting parallel compute")
- start = time.monotonic()
- is_done = par_mesh.Compute()
- if not is_done:
- raise Exception("Error when computing Mesh")
-
- 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():
- if sys.platform == "win32":
- print("Test disabled on Windows")
- return
- nbox = 2
- boxsize = 100
- run_test(nbox, boxsize)
-
-main()
+ 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')
+
+rubik_cube = geompy.MakeGlueEdges(all_boxes, 1e-07)
+geompy.addToStudy(all_boxes, 'rubik_cube')
+
+
+smesh = smeshBuilder.New()
+print("Creating Parallel Mesh")
+par_mesh = smesh.ParallelMesh(rubik_cube, name="par_mesh")
+
+print("Creating hypoehtesis for netgen")
+NETGEN_3D_Parameters_1 = smesh.CreateHypothesisByAverageLength( 'NETGEN_Parameters',
+ 'NETGENEngine', 34.641, 0 )
+print("Adding hypothesis")
+par_mesh.AddGlobalHypothesis(NETGEN_3D_Parameters_1)
+
+print("Setting parallelism method")
+par_mesh.SetParallelismMethod(smeshBuilder.MULTITHREAD)
+
+print("Setting parallelism options")
+param = par_mesh.GetParallelismSettings()
+param.SetNbThreads(6)
+
+print("Starting parallel compute")
+is_done = par_mesh.Compute()
+if not is_done:
+ raise Exception("Error when computing Mesh")
+
+print(" Tetrahedron: ", par_mesh.NbTetras())
+print(" Triangle: ", par_mesh.NbTriangles())
+print(" edge: ", par_mesh.NbEdges())
+
+assert par_mesh.NbTetras() > 0
+assert par_mesh.NbTriangles() > 0
+assert par_mesh.NbEdges() > 0
