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Bharat Mahajan edited this page Aug 22, 2020
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Welcome to the FLINT wiki!
Things to do
- EventAction: Ability to restart integration after encountering a discontinuity in the differential equations and aility to cross the discontinuity before restarting
- Ability to detect events beyond which the first-order derivatives cannot be conveniently evaluated
- Option to return a refined bracket for event for use in integration through discontinuity, event state at the beginning or end of the step
- Divide differential equations into secondary states that are not used in step-error computations, but only integrated (useful for integrating sensitivity and STMs)
- Option to compute Jacobians using finite-differencing for secondary states
- Test examples from https://reference.wolfram.com/language/tutorial/NDSolveWhenEvents.html
- Choice of different step-error and step-size computation formulae
- Compare the performance of matmul, gemm, and do loops for computation of ERK stages
- Implement hand-optimized step-integration routines for Verner98R/Verner65E also.
New Features
- Implement one General Linear Method (GLM) algorithm for stiff and non-stiff systems
- Adjoint method for computing parameter sensitivity matrices cheaply