[Trilinos-Users] [EXTERNAL] PyTrilinos Teuchos Array(string, bool)

Bill Spotz wfspotz at sandia.gov
Mon Sep 21 12:15:31 EDT 2015


I just took a closer look at the example script.  I assume

    <Parameter name="my_string_array" type="Array(string)" value="{'pi','i like pie'}" />

(with elements of the string array quoted) would be preferable.

Also, I assume that Array(bool) should return Teuchos::Array< bool >, with whatever implementation that defaults to (which would be the same as std::vector< bool >).

-Bill

> On Sep 21, 2015, at 10:08 AM, Bill Spotz <wfspotz at sandia.gov> wrote:
> 
> These are not yet supported, but could easily be supported.  Do you have a timeframe in mind?
> 
>> On Sep 21, 2015, at 9:54 AM, Coon, Ethan <ecoon at lanl.gov> wrote:
>> 
>> Hi all,
>> 
>> I’m hoping to use PyTrilinos to generate ParameterLists, but am having trouble with our need for Array(bool) and Array(string) types.  Are these supported?  Can they be supported?  It seems that everything else works as we need.
>> 
>> Below is an example demonstrating what I get, and attached is a simple script which I would like to work.
>> 
>> Thanks much for your thoughts/comments,
>> 
>> Ethan
>> 
>> 
>> 
>> 
>> 
>> 
>> [ecoon at --- ~] > ipython
>> Python 2.7.8 |Anaconda 2.1.0 (64-bit)| (default, Aug 21 2014, 18:22:21)
>> Type "copyright", "credits" or "license" for more information.
>> 
>> IPython 2.2.0 -- An enhanced Interactive Python.
>> Anaconda is brought to you by Continuum Analytics.
>> Please check out: http://continuum.io/thanks and https://binstar.org
>> ?         -> Introduction and overview of IPython's features.
>> %quickref -> Quick reference.
>> help      -> Python's own help system.
>> object?   -> Details about 'object', use 'object??' for extra details.
>> 
>> In [1]: import PyTrilinos
>> 
>> In [2]: print PyTrilinos.__version__
>> 12.2
>> 
>> In [3]: import numpy
>> 
>> In [4]: print numpy.__version__
>> 1.9.0
>> 
>> In [5]: my_params = """
>> <ParameterList name="Main" type="ParameterList">
>>  <ParameterList name="Regions" type="ParameterList">
>>    <Parameter name="my_bool" type="bool" value="true" />
>>    <Parameter name="my_int" type="int" value="3" />
>>    <Parameter name="my_double" type="double" value="3.1" />
>>    <Parameter name="my_string" type="string" value="pi" />
>>    <!--Parameter name="my_bool_array" type="Array(bool)" value="{true,false}" -->
>>    <Parameter name="my_int_array" type="Array(int)" value="{3,4}" />
>>    <Parameter name="my_double_array" type="Array(double)" value="{3.1,3.14159}" />
>>    <!--Parameter name="my_string_array" type="Array(string)" value="{pi,i like pie}" -->
>>  </ParameterList>
>> </ParameterList>
>> """
>> 
>> In [6]: from PyTrilinos import Teuchos
>> 
>> In [7]: reader = Teuchos.XMLParameterListReader()
>> 
>> In [8]: source = Teuchos.StringInputSource(my_params)
>> 
>> In [9]: xmlObj = source.getObject()
>> 
>> In [10]: pList  = reader.toParameterList(xmlObj)
>> 
>> In [11]: print pList
>> {'Regions': {'my_double_array': array([ 3.1    ,  3.14159]), 'my_int': 3, 'my_bool': True, 'my_int_array': array([3, 4], dtype=int32), 'my_string': 'pi', 'my_double': 3.1}}
>> 
>> In [12]: my_params = """
>> <ParameterList name="Main" type="ParameterList">
>>  <ParameterList name="Regions" type="ParameterList">
>>    <Parameter name="my_bool" type="bool" value="true" />
>>    <Parameter name="my_int" type="int" value="3" />
>>    <Parameter name="my_double" type="double" value="3.1" />
>>    <Parameter name="my_string" type="string" value="pi" />
>>    <!--Parameter name="my_bool_array" type="Array(bool)" value="{true,false}" -->
>>    <Parameter name="my_int_array" type="Array(int)" value="{3,4}" />
>>    <Parameter name="my_double_array" type="Array(double)" value="{3.1,3.14159}" />
>>    <Parameter name="my_string_array" type="Array(string)" value="{pi,i like pie}" />
>>  </ParameterList>
>> </ParameterList>
>> """
>> 
>> In [13]: source = Teuchos.StringInputSource(my_params)
>> 
>> In [14]: xmlObj = source.getObject()
>> 
>> In [15]: pList  = reader.toParameterList(xmlObj)
>> 
>> In [16]: print pList
>> ---------------------------------------------------------------------------
>> ValueError                                Traceback (most recent call last)
>> <ipython-input-16-8444d27fed69> in <module>()
>> ----> 1 print pList
>> 
>> /n/swdev/ats/trilinos/trilinos-12.2.1-install/lib/python2.7/site-packages/PyTrilinos/Teuchos.pyc in __str__(self, *args)
>>   5433         an equivalent dictionary.
>>   5434         """
>> -> 5435         return _Teuchos.ParameterList___str__(self, *args)
>>   5436
>>   5437
>> 
>> /n/swdev/packages/Ubuntu-14.04-x86_64/anaconda-python/2.1.0/lib/python2.7/site-packages/numpy/core/numeric.pyc in array_repr(arr, max_line_width, precision, suppress_small)
>>   1651     if arr.size > 0 or arr.shape==(0,):
>>   1652         lst = array2string(arr, max_line_width, precision, suppress_small,
>> -> 1653                            ', ', "array(")
>>   1654     else: # show zero-length shape unless it is (0,)
>>   1655         lst = "[], shape=%s" % (repr(arr.shape),)
>> 
>> /n/swdev/packages/Ubuntu-14.04-x86_64/anaconda-python/2.1.0/lib/python2.7/site-packages/numpy/core/arrayprint.pyc in array2string(a, max_line_width, precision, suppress_small, separator, prefix, style, formatter)
>>    447                 x = _convert_arrays(x)
>>    448             lst = style(x)
>> --> 449     elif reduce(product, a.shape) == 0:
>>    450         # treat as a null array if any of shape elements == 0
>>    451         lst = "[]"
>> 
>> ValueError: Parameter 'my_string_array' is of unsupported type
>> 
>> In [17]: my_params = """
>> <ParameterList name="Main" type="ParameterList">
>>  <ParameterList name="Regions" type="ParameterList">
>>    <Parameter name="my_bool" type="bool" value="true" />
>>    <Parameter name="my_int" type="int" value="3" />
>>    <Parameter name="my_double" type="double" value="3.1" />
>>    <Parameter name="my_string" type="string" value="pi" />
>>    <Parameter name="my_bool_array" type="Array(bool)" value="{true,false}" />
>>    <Parameter name="my_int_array" type="Array(int)" value="{3,4}" />
>>    <Parameter name="my_double_array" type="Array(double)" value="{3.1,3.14159}" />
>>    <Parameter name="my_string_array" type="Array(string)" value="{pi,i like pie}" />
>>  </ParameterList>
>> </ParameterList>
>> """
>> 
>> In [18]: source = Teuchos.StringInputSource(my_params)
>> 
>> In [19]: xmlObj = source.getObject()
>> 
>> In [20]: pList  = reader.toParameterList(xmlObj)
>> ---------------------------------------------------------------------------
>> SystemError                               Traceback (most recent call last)
>> <ipython-input-20-f48bdc85f5fb> in <module>()
>> ----> 1 pList  = reader.toParameterList(xmlObj)
>> 
>> /n/swdev/ats/trilinos/trilinos-12.2.1-install/lib/python2.7/site-packages/PyTrilinos/Teuchos.pyc in toParameterList(self, *args)
>>   5916     def toParameterList(self, *args):
>>   5917         """toParameterList(XMLParameterListReader self, XMLObject xml) -> ParameterList"""
>> -> 5918         return _Teuchos.XMLParameterListReader_toParameterList(self, *args)
>>   5919
>>   5920
>> 
>> SystemError: /n/swdev/ats/trilinos/trilinos-12.2.1-source/packages/teuchos/parameterlist/src/Teuchos_ParameterEntryXMLConverterDB.cpp:85:
>> 
>> Throw number = 11
>> 
>> Throw test that evaluated to true: it == getConverterMap().end()
>> 
>> Can't find converter for parameter entry of type: Array(bool)
>> 
>> <pytrilinos-test.py>
> 
> ** Bill Spotz                                              **
> ** Sandia National Laboratories  Voice: (505)845-0170      **
> ** P.O. Box 5800                 Fax:   (505)284-0154      **
> ** Albuquerque, NM 87185-0370    Email: wfspotz at sandia.gov **
> 
> 
> 
> 
> 



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