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FAQs for developers

Jaideep Joshi

11 March 2022

faq_dev.Rmd

Why is the species templated, instead of using IndividualBase?

So that a vector of Cohorts can be created, rather than a vector of base pointer CohortBase*. This allows cache locality and has better performance.

Where should precompute be triggered?

Upon every state update (in setSize()) and every environment update (in updateEnv()).

In the earlier implementation in which precompute was not auto-triggered, where was it called?

The Solver called precompute in the following situations:

  • before every call to calcRates
  • before computation of newborns_out
  • for all offset cohorts in growthRateXXX and mortalityRateXXX functions before call to growthRate or mortalityRate.
  • preCompute was NOT called in afterStep. This may not have been okay.