Project Meeting 2017.07.21

Logsums

• The logsums branch is largely complete
• Work and school location choice now include intelligent sampling and logsums
• Required revisions to the entire chain of modules, as described here
• Both models also include intelligent sampling as well now, as described here
• Revised chunk_size setting to be smarter: it now specifies the number of values in chunk (total size), not just number of chunk rows
• Improved handling of data type issues in low level dot operations and this significantly improved runtimes of all models
• Created a logsums expression file for now by copying the mode_choice expression file and removing attributes not available for work/school location in order to avoid the pre-processing that doesn't apply; @We need to go back and fix this
• Tests implemented
• All other models do not include logsums in the utility expressions at this time
• @We need to test with more complete setup (all zones, all hhs, all skims)
• @We need to update documentation since this is a major revision

Project management

• Discuss Phase 3 amendment scope
• Intelligent sampling can be removed from the scope since its been implemented
• Updates on additional funding later this year
• Wu is replacing Clint on the PMC