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import vtk
from vtk.test import Testing
from vtk.util.misc import vtkGetTempDir
VTK_TEMP_DIR = vtkGetTempDir()
contr = vtk.vtkMultiProcessController.GetGlobalController()
if not contr:
nranks = 1
rank = 0
else:
nranks = contr.GetNumberOfProcesses()
rank = contr.GetLocalProcessId()
def GetSource(dataType):
s = vtk.vtkRTAnalyticSource()
# Fake serial source
if rank == 0:
s.Update()
if dataType == 'ImageData':
return s.GetOutput()
elif dataType == 'UnstructuredGrid':
dst = vtk.vtkDataSetTriangleFilter()
dst.SetInputData(s.GetOutput())
dst.Update()
return dst.GetOutput()
elif dataType == 'RectilinearGrid':
input = s.GetOutput()
rg = vtk.vtkRectilinearGrid()
rg.SetExtent(input.GetExtent())
dims = input.GetDimensions()
spacing = input.GetSpacing()
x = vtk.vtkFloatArray()
x.SetNumberOfTuples(dims[0])
for i in range(dims[0]):
x.SetValue(i, spacing[0]*i)
y = vtk.vtkFloatArray()
y.SetNumberOfTuples(dims[1])
for i in range(dims[1]):
y.SetValue(i, spacing[1]*i)
z = vtk.vtkFloatArray()
z.SetNumberOfTuples(dims[2])
for i in range(dims[2]):
z.SetValue(i, spacing[2]*i)
rg.SetXCoordinates(x)
rg.SetYCoordinates(y)
rg.SetZCoordinates(z)
rg.GetPointData().ShallowCopy(input.GetPointData())
return rg
elif dataType == 'StructuredGrid':
input = s.GetOutput()
sg = vtk.vtkStructuredGrid()
sg.SetExtent(input.GetExtent())
pts = vtk.vtkPoints()
sg.SetPoints(pts)
npts = input.GetNumberOfPoints()
for i in xrange(npts):
pts.InsertNextPoint(input.GetPoint(i))
sg.GetPointData().ShallowCopy(input.GetPointData())
return sg
def TestDataType(dataType, filter):
if rank == 0:
print dataType
s = GetSource(dataType)
da = vtk.vtkIntArray()
da.SetNumberOfTuples(6)
if rank == 0:
try:
ext = s.GetExtent()
except:
ext = (0, -1, 0, -1, 0, -1)
for i in range(6):
da.SetValue(i, ext[i])
contr.Broadcast(da, 0)
ext = []
for i in range(6):
ext.append(da.GetValue(i))
ext = tuple(ext)
tp = vtk.vtkTrivialProducer()
tp.SetOutput(s)
tp.SetWholeExtent(ext)
ncells = vtk.vtkIntArray()
ncells.SetNumberOfTuples(1)
if rank == 0:
ncells.SetValue(0, s.GetNumberOfCells())
contr.Broadcast(ncells, 0)
result = vtk.vtkIntArray()
result.SetNumberOfTuples(1)
result.SetValue(0, 1)
if rank > 0:
if s.GetNumberOfCells() != 0:
result.SetValue(0, 0)
filter.SetInputConnection(tp.GetOutputPort())
filter.Update(rank, nranks, 0)
if filter.GetOutput().GetNumberOfCells() != ncells.GetValue(0) / nranks:
result.SetValue(0, 0)
filter.Update(rank, nranks, 1)
gl = filter.GetOutput().GetCellData().GetArray(vtk.vtkDataSetAttributes.GhostArrayName())
if not gl:
result.SetValue(0, 0)
else:
rng = gl.GetRange()
if rng[1] != 1:
result.SetValue(0, 0)
resArray = vtk.vtkIntArray()
resArray.SetNumberOfTuples(1)
contr.AllReduce(result, resArray, vtk.vtkCommunicator.MIN_OP)
assert resArray.GetValue(0) == 1
TestDataType('ImageData', vtk.vtkTransmitImageDataPiece())
TestDataType('RectilinearGrid', vtk.vtkTransmitRectilinearGridPiece())
TestDataType('StructuredGrid', vtk.vtkTransmitStructuredGridPiece())
TestDataType('UnstructuredGrid', vtk.vtkTransmitUnstructuredGridPiece())
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