solprop.backends.numba_cpu#

The CPU backend: fused numba kernels over FFTW plans.

The execution chosen by a bake-off of candidate backends (docs/dev/backends.md section 5): the seven numbered passes of architecture.md section 8 collapsed into a handful of compiled kernels, the transforms planned once by FFTW on buffers that never move, and all five thread pools owned rather than inherited.

solprop.backends.numba_cpu.kernels – the fused stage kernels, built from the per-element bodies of solprop.backends.bodies, which every backend shares.
solprop.backends.numba_cpu.fft – the plans, the wisdom and the pools.
solprop.backends.numba_cpu.backend – the seam and the stage driver.

Modules

`backend`	The CPU backend: the seam, the stage driver and the statistics.
`batch`	Execute CPU member stages with one compiled batch update and segmented norms.
`coupled_flow`	The coupled flow of a coherent wall or a split block, on the CPU backend.
`dispersive`	SEP 6's frequency-dependent electronic response on the fused node path.
`dispersive_general`	SEP 6's frequency-dependent electronic response on the general modal route.
`dispersive_spatial`	SEP 6's frequency-dependent electronic response on the Cartesian and planar routes.
`envelope_plasma`	Own compiled envelope-current workspaces and their forward transforms.
`fft`	FFTW plans, wisdom, and the five thread pools the backend owns.
`field_plasma`	Own the held field-current streams, transforms and frequency assembly.
`general_modal`	The general modal guide's nonlinear source, compiled, on the CPU backend.
`kernels`	The fused stage kernels: seven numbered passes in a handful of traversals.
`low_storage`	The low-storage RK4IP march's register kernels and resident engine on `numba_cpu`.
`multistep`	The fused Adams step's passes, compiled (SEP 14 phase 2, SEP 16 phase 3).
`openmp`	The pyFFTW import, made so that its OpenMP threads sleep when they are idle.
`pass_timers`	Opt-in wall-clock timers for the passes of a free-space evaluation (SEP 28 phase 0).
`planar`	Execute the hybrid planar transform's compiled passes.
`spatial`	Execute separable spatial coefficients and bounded Cartesian column transfers.
`tables`	Evaluate the reference z-table representation into persistent host stage arrays.