Re: [UrbanSim-Users] MySql configuration

Mark,

The reason for this error is that there are not enough eligible locations
to sample from in order to create a set of alternatives for placing jobs.
The default setting is to sample 30 locations. You can try to decrease
this number by adding an argument sample_size_locations=10 (e.g.) to

'employment_location_choice_model': {
                    'controller':
EmploymentLocationChoiceModelConfigurationCreator(
                        input_index = 'erm_index',
# here add the argument
                        ).execute(),
                    },

in urbansim/configs/general_configuration.py. Or switch the sampling off
by adding an argument sampler=None to the same place.

I hope it works.

Hana

On Fri, 14 Sep 2007, Mark Kryvobokov wrote:

> Hi,
> When we run simulation with the Eugene data, everything was OK. Then
> we started to change the Eugene baseyear dataset in order to transform
> it to the dataset for the city of Lyon. The intention is to change the
> Eugene dataset step by step. Thus, in Zones table we changed the travel
> time and added data for additional zones. In Gridcells table we remained
> only one gridcell for each zone (for the beginning). We remain only
> these gridcells in other tables. After running simulation for the same
> sequence of models as for Eugene data, the only problem is with {
> 'employment_location_choice_model' : { 'group_members' : '_all_' }} .
> When we run simulation without that model, it is OK. When we run
> simulation with that model, the problems are as follows:
>
>
>
> WARNING: weight array dosen't have enough non-zero counts, use sample with replacement
>
>
> Traceback (most recent call last):
>
> File "C:\MyNew\projects\OPUS\opus-4.0\urbansim\model_coordinators\model_system.py", line 521, in ?
>
> s.run(resources)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\urbansim\model_coordinators\model_system.py", line 132, in run
>
> resources=resources, flt_directory=flt_directory)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\urbansim\model_coordinators\model_system.py", line 358, in run_year
>
> self.vardict[outputvar] = self.do_process(locals())
>
> File "C:\MyNew\projects\OPUS\opus-4.0\urbansim\model_coordinators\model_system.py", line 424, in do_process
>
> return eval(ev)
>
> File "<string>", line 0, in ?
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\model.py", line 45, in logged_run_method
>
> results = run_method(*req_args, **opt_args)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\configurable.py", line 39, in config_run_method
>
> results = run_method(*req_args, **opt_args)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\urbansim\models\agent_location_choice_model_member.py", line 44, in run
>
> agents_index=agents_index[new_agents_index], **kwargs)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\urbansim\models\agent_location_choice_model.py", line 68, in run
>
> agents_index[unplaced], chunk_specification, data_objects, run_config, debuglevel)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\urbansim\models\location_choice_model.py", line 123, in run
>
> debuglevel=debuglevel)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\choice_model.py", line 134, in run
>
> data_objects=data_objects)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\chunk_model.py", line 74, in run
>
> dataset, **kwargs)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\urbansim\models\agent_location_choice_model.py", line 83, in run_chunk
>
> data_objects)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\urbansim\models\location_choice_model.py", line 140, in run_chunk
>
> choices = ChoiceModel.run_chunk(self,agents_index, agent_set, specification, coefficients, data_objects)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\choice_model.py", line 147, in run_chunk
>
> index = self.get_choice_index(nchoices, agent_set, agents_index, agentsubset, data_objects)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\urbansim\models\location_choice_model.py", line 283, in get_choice_index
>
> weight=self.weights, resources=self.run_config)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\configurable.py", line 39, in config_run_method
>
> results = run_method(*req_args, **opt_args)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\samplers\weighted_sampler.py", line 103, in run
>
> replace=replace, return_indices=True )
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\sampling_toolbox.py", line 273, in prob2dsample
>
> cum_prob = ncumsum(p_array)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\misc.py", line 401, in ncumsum
>
> raise ValueError, "The probability array must sum up to 1. It is " + \
>
> ValueError: The probability array must sum up to 1. It is -1.#IND
>
> C:\Python24\Lib\site-packages\mysql_python-1.2.2-py2.4-win32.egg\_mysql.py:3: UserWarning: Module _mysql was already imported from C:\Python24\Lib\site-packages\mysql_python-1.2.2-py2.4-win32.egg\_mysql.pyc, but c:\python24\lib\site-packages\mysql_python-1.2.2-py2.4-win32.egg is being added to sys.path
>
> C:\Python24\Lib\site-packages\mysql_python-1.2.2-py2.4-win32.egg\_mysql.py:3: UserWarning: Module MySQLdb was already imported from C:\Python24\Lib\site-packages\mysql_python-1.2.2-py2.4-win32.egg\MySQLdb\__init__.pyc, but c:\python24\lib\site-packages\mysql_python-1.2.2-py2.4-win32.egg is being added to sys.path
>
> C:\Python24\Lib\site-packages\mysql_python-1.2.2-py2.4-win32.egg\_mysql.py:3: UserWarning: Module opus_core was already imported from C:\MyNew\projects\OPUS\opus-4.0\opus_core\__init__.pyc, but c:\mynew\projects\opus\opus-4.0 is being added to sys.path
>
> Traceback (most recent call last):
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\tools\start_run.py", line 73, in ?
>
> run_manager.run_run(config)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\services\run_server\run_manager.py", line 162, in run_run
>
> model_system.run_multiprocess(run_resources)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\urbansim\model_coordinators\model_system.py", line 457, in run_multiprocess
>
> ForkProcess().fork_new_process(
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\fork_process.py", line 47, in fork_new_process
>
> raise StandardError("Problem with %s" % module_name)
>
> StandardError: Problem with urbansim.model_coordinators.model_system
>
> Traceback (most recent call last):
>
> File "C:\MyNew\projects\OPUS\opus-4.0\eugene\tools\letsim_run.py", line 54, in ?
>
> ForkProcess().fork_new_process('opus_core.tools.start_run', resources=config)
>
> File "C:\MyNew\projects\OPUS\opus-4.0\opus_core\fork_process.py", line 47, in fork_new_process
>
> raise StandardError("Problem with %s" % module_name)
>
> StandardError: Problem with opus_core.tools.start_run
> >From employment_sectors table we deleted those sector_id values, which are not used in our data in jobs table, we did the same for other tables (race_id for race_names etc.), but after running simulation we have the same errors. What is the reason of the problem?
>
> Mark
>
Received on Fri Sep 14 2007 - 07:07:21 PDT