pytc.xtc¶

JAX implementation of X transcorrelated methods.

Functions

`_accum_issue_stage`	Add `dt` seconds to `name` if a pipeline stats scope is active.
`_chunk_selector`	Convert a contiguous subrange of indices into a slice when possible.
`_contract_tucker_x_residual`	Contract an orbital-leg Tucker X core without reconstructing X.
`_estimate_delta_u_contraction_bytes`	Estimate device memory for the legacy scan-based Delta U kernel.
`_estimate_delta_u_direct_tile_bytes`	Estimate device memory for the balanced direct Delta U tile kernel.
`_get_tucker_x_factors`	Return a validated `(U, Z)` Tucker-X representation, if present.
`_read_X_slice`	Read `X[slice_r, slice_s]`, reusing a host-side cache when possible.
`_slice_key`	Hashable representation of a slice or index array.
`_tucker_x_normal_order_intermediates`	Return the X intermediates used by reference normal ordering.
`compute_2b_tile`	Execute one XTC 2-body tile using the internal tile API only.
`invalidate_X_cache`	Explicitly free the cached X slice (e.g., at end of CCSD iteration).
`issue_stage_stats_scope`	Establish a per-pipeline accumulator for `_accum_issue_stage`.