Project Meeting 2021.05.25 - ActivitySim/activitysim GitHub Wiki

Technical Call

  • Issues review
    • No new issues
  • New page added for Server Specs
  • Reviewed auto-chunking calculation improvements and results
    • Feature is working well and I'm working on updating the user's guide to describe the new settings
    • Also need to update the examples
    • Some discussion about running the model massively parallel to get really fast runtimes and the architectural challenges for such a setup
    • Will add times for the single process start up and shutdown steps that are similar across the different scenarios
    • These components, such as creating and coalescing the multiprocess mini pipelines, would need some improvements for a massively parallel setup
    • But it still scales well for 64, 128, etc. cores
    • Settings are much more intuitive than before
  • Work from home example added as new branch
    • Using auto accessibility measure for now
    • Would be good to add a deprecation warning about the change in calling the size term scaling function
  • Joel share transit pass fare discounts analysis on Thursday
  • PUMS is changing to synthetic data, see https://ipums.org/changes-to-census-bureau-data-products