pytc.solver.test.test_isdf_xtc_ccsd_factor_direct

Numerical gates for the factor-direct VVVV–T2 prototype.

Classes

TestFactorDirectPhysicalH10	Opt-in physical H10 case.
TestFactorDirectRandomFP64	Every unsymmetrized and pair-swapped branch is exact in FP64.
TestMemoryMeasurement	The tier gate's memory measurements, including their fallback paths.
TestRankMajorXLayout	Rank-major X backings (rank, nmo, nmo): same math, contiguous panels.
TestStreamedXParity	Streamed-X contraction matches the full-block lift term for term.
TestTieredXAuto	Three-tier auto dispatcher: forced tiers match the full-lift math.
TestTuckerXFactorDirect	Rank-M X contracts directly with T2 without reconstructing X or V⁴.

Functions

_dense_full	Test-only V^4 reference in PyTC's (a,c,b,d) tile order.
_dense_reference_terms
_dense_x	Test-only partial-THC X reference in (a,c,b,d) order.
_jaxpr_output_shapes
_nested_jaxprs	Yield nested JAXPRs, including the body of a staged jit call.
_random_inputs
_relative_l2
_tile_t2