Issues

• ClipStepSizeController's jump search costs two while_loops per step (slow on GPU)

  patrick-kidger/diffrax#776 · Filter by author etiferrier opened on Oct 2, 2026

• Implicit solvers never recover from a failed step when y is complex (NaN step size)

  patrick-kidger/diffrax#774 · Filter by author etiferrier opened on Sep 30, 2026

• Gradients with respect to traced jump_ts blow up: the tangent of a clipped step grows through the next steps

  patrick-kidger/diffrax#772 · Filter by author etiferrier opened on Sep 28, 2026

• Public API for custom solvers composing exact sub-flows (e.g. AbstractSplittingSolver)

  patrick-kidger/diffrax#771 · Filter by author mooresm opened on Sep 22, 2026

• Question: Solving an SDE by applying an ODE Runge-Kutta method to the Stratonovitch form in Diffrax

  patrick-kidger/diffrax#769 · Filter by author BenjaminDAnjou opened on Sep 14, 2026
  1

• Zero-order-hold inputs with fixed-step solvers in a single diffeqsolve

  patrick-kidger/diffrax#766 · Filter by author Giuliomontecchio opened on Aug 13, 2026
  4

• problems when calling diffeqsolve inside a blackjax sampler with *shard_map*.

  patrick-kidger/diffrax#765 · Filter by author mamueller opened on Aug 10, 2026
  9

• How to sample fresh noise at each step for a non-linear noise-perturbed ODE dX = f(X, z)dt?

  patrick-kidger/diffrax#759 · Filter by author vadmbertr opened on Jun 10, 2026
  8

• Documentation and implementation of ConstantStepSize do not quite align

  patrick-kidger/diffrax#757 · Filter by author alexander-de-ranitz opened on May 27, 2026

• Enforcing Absolute Unitarity in Differentiable Physics: The Float-to-Integer Ledger Approach

  patrick-kidger/diffrax#750 · Filter by author Rupayan52 opened on Apr 30, 2026

• Leave some elements of jax array unchanged during diffeqsolve without computation

  question
  patrick-kidger/diffrax#747 · Filter by author BenjaminDAnjou opened on Apr 16, 2026
  1

• Low Storage Methods

  question
  patrick-kidger/diffrax#743 · Filter by author luke-a-thompson opened on Mar 17, 2026
  3

• Return value of the vector field at t0 without recomputation

  question
  patrick-kidger/diffrax#741 · Filter by author BenjaminDAnjou opened on Mar 13, 2026
  2

• Running diffeqsolve for a fixed number of *accepted* steps

  question
  patrick-kidger/diffrax#740 · Filter by author BenjaminDAnjou opened on Mar 4, 2026
  1

• Support for Sharding 2.0 2.0

  patrick-kidger/diffrax#738 · Filter by author wittenator opened on Feb 26, 2026
  2

• Gradients of state variables in post-event simulations

  question
  patrick-kidger/diffrax#729 · Filter by author FFroehlich opened on Feb 11, 2026
  15

• Creating Support for Delay Differential Equations

  patrick-kidger/diffrax#721 · Filter by author PraneethMerugu opened on Jan 20, 2026
  3

• auto-parallelization alongside vmap is very slow

  question
  patrick-kidger/diffrax#718 · Filter by author jaxengodfrey opened on Jan 12, 2026
  4

• Kvaerno, KenCarp solvers fail jax tracing for a multicomponent state and jax 0.8.2

  patrick-kidger/diffrax#717 · Filter by author ds283 opened on Jan 12, 2026
  1

• Old versions much faster?

  question
  patrick-kidger/diffrax#711 · Filter by author cgiovanetti opened on Dec 2, 2025
  4

• (Non-constant) mass matrix example

  patrick-kidger/diffrax#710 · Filter by author dannys4 opened on Dec 2, 2025
  1

• JIT compiling VirtualBrownianTree.evaluate() hangs indefinitely when using jnp.int32 to pass shape to ShapeDtypeStruct

  patrick-kidger/diffrax#707 · Filter by author alexander-de-ranitz opened on Nov 13, 2025
  5

• Obscure error for passing EulerHeun instead of EulerHeun()

  patrick-kidger/diffrax#705 · Filter by author rdaems opened on Nov 7, 2025
  3

• Infinite loop in PID stepsize controller due to float precision error

  patrick-kidger/diffrax#703 · Filter by author philipwijesinghe opened on Nov 5, 2025
  3

• Code breaks on an oscillator-like problem

  patrick-kidger/diffrax#702 · Filter by author evgenykurbatov opened on Nov 1, 2025
  2