pytc.solver.isdf_xtc_ccsd._x_host_panel_source¶

pytc.solver.isdf_xtc_ccsd._x_host_panel_source(x_host, layout='innermost')[source]¶

Panel source that slices a host-resident X (tier 2).

x_host is (nvir, nvir, rank) for innermost layout or (rank, nvir, nvir) for rank-major. Either way each panel is copied contiguous rank-leading (panel, nvir, nvir) in the prefetch thread; the rank tail is zero-padded exactly like _read_x_rank_panel().