Can anyone give me a hint on how to delete an array from an
unstructured mesh
in a python script. I need to do this to save memory when going
through multiple
steps processing data.
Below is an example python script and where I would like to delete
unused arrays to save memory.
Thanks for any help or ideas.. Dan
reader = \
servermanager.sources.XMLUnstructuredGridReader(FileName=in_dir
+"/"+in_file)
# Use calculator to get the first component of velocity into the
# scalar array velocity_u
calc_u = servermanager.filters.Calculator(Input=reader)
calc_u.ResultArrayName ='velocity_u'
calc_u.AddScalarVariable = ['velocity', 'velocity', '0']
calc_u.Function = 'velocity'
# Use calculator to get the first component of velocity into the
# scalar array velocity_u
calc_v = servermanager.filters.Calculator(Input=calc_u)
calc_v.ResultArrayName ='velocity_v'
calc_v.AddScalarVariable = ['velocity', 'velocity', '1']
calc_v.Function = 'velocity'
# Use calculator to get the first component of velocity into the
# scalar array velocity_u
calc_w = servermanager.filters.Calculator(Input=calc_v)
calc_w.ResultArrayName ='velocity_w'
calc_w.AddScalarVariable = ['velocity', 'velocity', '2']
calc_w.Function = 'velocity'
# I NO LONGER NEED THE WHOLE VELOCITY FIELD I WOULD LIKE TO DELETE IT
#calculate gradiants du
grad_u= servermanager.filters.UnstructuredGradient(Input=calc_w)
grad_u.ResultArrayName = "du"
grad_u.SelectInputScalars = ["0","0","0","0","velocity_u"]
#calculate gradiants dv
grad_v= servermanager.filters.UnstructuredGradient(Input=grad_u)
grad_v.ResultArrayName = "dv"
grad_v.SelectInputScalars = ["0","0","0","0","velocity_v"]
#calculate gradiants dw
grad_w= servermanager.filters.UnstructuredGradient(Input=grad_v)
grad_w.ResultArrayName = "dw"
grad_w.SelectInputScalars = ["0","0","0","0","velocity_w"]
# I NO LONGER NEED THE WHOLE VELOCITY SCALAR FIELDS I WOULD LIKE TO
DELETE THEM
#calculate vorticity magnitude
calc_vort = servermanager.filters.Calculator(Input=grad_w)
calc_vort.ResultArrayName ='VortMag'
calc_vort.AddScalarVariable = \
['dudx', 'du', '0','dudy', 'du', '1','dudz', 'du', '2',\
'dvdx', 'dv', '0','dvdy', 'dv', '1','dvdz', 'dv', '2',\
'dwdx', 'dw', '0','dwdy', 'dw', '1','dwdz', 'dw', '2', ]
calc_vort.Function = 'sqrt( (dwdy - dvdz)^2 + (dudz - dwdx)^2 +
(dvdx - dvd
y )^2 )'
# ALL DONE ! I WOULD LIKE TO DELETE EVERYTHING EXCEPT THE REQUIRED
VORTICITY MAGNITUDE SCALAR FIELD
writer =
servermanager.writers.XMLUnstructuredGridWriter(Input=calc_vort,\
FileName=out_file )
writer.UpdatePipeline()
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