dq.solver.Dopri8

Dopri8(
    rtol: float = 1e-06,
    atol: float = 1e-06,
    safety_factor: float = 0.9,
    min_factor: float = 0.2,
    max_factor: float = 5.0,
    max_steps: int = 100000,
)

Dormand-Prince method of order 8 (adaptive step size ODE solver).

This solver is implemented by the Diffrax library, see diffrax.Dopri8.

Parameters

• rtol –

  Relative tolerance.

• atol –

  Absolute tolerance.

• safety_factor –

  Safety factor for adaptive step sizing.

• min_factor –

  Minimum factor for adaptive step sizing.

• max_factor –

  Maximum factor for adaptive step sizing.

• max_steps –

  Maximum number of steps.

Supported gradients

This solver supports differentiation with dq.gradient.Autograd and dq.gradient.CheckpointAutograd (default).