Andy,
I think I've made a mock up of what you are trying to do and may have gotten it
to run correctly, if I understood your problem accurately. I have a structure
like:
package/
driver/
driver.py
scripts/
filewithparaviewstuff.py
utilities.py
The contents of each file are really simple:
utilities.py:
def hi():
print "Hi there"
filewithparaviewstuff.py:
from .utilities import *
from paraview.simple import *
def my_pv():
hi()
driver.py:
import sys
sys.path.append('/path/to/package/')
from scripts.filewithparaviewstuff import *
my_pv()
>From here, I can do a `pvbatch driver.py` and it prints the "Hi there" string
>as expected. I can also run it on 12 processors and get the expected 12 "Hi
>there" strings, so it seems to work in parallel also.
Does that help clear up the relationship between the files? Or did I
misunderstand something and my simple example doesn't replicate the system
properly?
Tim
----- Original Message -----
From: "Andy Smith" <agsmith...@gmail.com>
To: paraview@paraview.org
Sent: Tuesday, January 26, 2016 11:10:34 PM
Subject: [Paraview] Call Python function with parallel reader without pvbatch
directly
I'd like to use a driver Python script to call a Python function within a
module that uses ParaView to read a file in parallel and I was wondering the
best way to go about this.
A little background:
The file structure is something like this:
mypythonpackage/
scripts/
my_driver_script.py
mypythonpackage/
paraview/
filewithparaviewstuff.py
utilities.py
The driver script takes inputs and then calls a function in
filewithparaviewstuff.py that uses ParaView to load a large data file and do
some data analysis. I need to load the dataset in parallel since it is quite
large. To get around this in the past I've used two different methods:
1. Use the subprocess Python package inside the my_driver_script.py to call the
filewithparaviewstuff.py using pvbatch .
2. Use the subprocess Python package inside the my_driver_script.py to start a
pvserver and then connect to this server within the function inside
filewithparaviewstuff.py
The issue I have is the filewithparaviewstuff.py calls some functions in the
utilities.py file. I'm trying to follow PEP 328 and use import statements
within filewithparaviewstuff.py like :
from .utilities import my_utility_function
inside the filewithparaviewstuff.py but this causes problems if I use method 1,
of calling the filewithparaviewstuff.py directly with pvbatch or if I try to
make a '__main__' function in the filewithparaviewstuff.py and call that
directly with pvbatch .
Am I doing something fundamentally wrong or has anyone encountered this
situation and come up with a more elegant solution? If not, should I just keep
going with my option 2?
Thanks,
Andy
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Powered by www.kitware.com
Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html
Please keep messages on-topic and check the ParaView Wiki at:
http://paraview.org/Wiki/ParaView
Search the list archives at: http://markmail.org/search/?q=ParaView
Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/paraview
