# #566 backward-VJP jaxpr op-histogram (trace-only) | x64=True
# unit = apply_Jt = VJP of one gauge-fixed CTM sweep w.r.t. env (Neumann matvec)
# projector_backward = auto

== u1sz D=3 chi=12 blocks=32 ==
  bucket                                 flag_off    flag_on   on/off
  contraction                                4064       4064    1.00x
  decomp(svd/eigh/qr)                          78         78    1.00x
  block-pack(slice/scatter/reshape)         24515      24515    1.00x
  transpose                                  5874       5874    1.00x
  charge-mask / index arith                  7398       7398    1.00x
  elementwise(add/mul/...)                  11384      11384    1.00x
  other                                     10299      10299    1.00x
  TOTAL                                     63612      63612    1.00x  <== TOTAL

