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import sys
from paraview import smtesting
import os
import os.path
import sys
from paraview.simple import *
print 'starting'
paraview.simple._DisableFirstRenderCameraReset()
smtesting.ProcessCommandLineArguments()
fname = os.path.join(smtesting.TempDir, "parallelimagewritertest.pvti")
import paraview.servermanager
pm = paraview.servermanager.vtkProcessModule.GetProcessModule()
# if the file exists, delete it on process 0 just to be safe
processId = pm.GetGlobalController().GetLocalProcessId()
if processId == 0:
if os.path.isfile(fname) == True:
os.remove(fname)
Wavelet1 = Wavelet()
w = XMLPImageDataWriter(FileName=fname)
w.UpdatePipeline()
if pm.GetSymmetricMPIMode() == True:
# need to barrier to ensure that all ranks have updated.
controller = pm.GetGlobalController()
controller.Barrier()
r = XMLPartitionedImageDataReader(FileName = fname)
r.UpdatePipeline()
# if we're running in symmetric mode, numcells is the local process's
# number of cells. if not, it is the global number of cells and
# only the process that reads in this script gets that information
numcells = r.GetDataInformation().DataInformation.GetNumberOfCells()
# check which mode we're in
if pm.GetSymmetricMPIMode() == True:
# we're in symmetric mode so we have to do a global reduce for
# process 0 to get the global amount of cells to check
import paraview.vtk as vtk
da = vtk.vtkIntArray()
da.SetNumberOfTuples(1)
da.SetValue(0, numcells)
da2 = vtk.vtkIntArray()
da2.SetNumberOfTuples(1)
pm.GetGlobalController().Reduce(da, da2, 2, 0)
numcells = da2.GetValue(0)
if processId == 0 and numcells != 8000:
print "ERROR: ", fname, " has ", numcells, " but should have 8000."
sys.exit(1)
print "Test passed."
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