innovus clock tree instance ccl cdb cwb等 名字命名含义

Legacy UI : show_ccopt_cell_name_info
Common UI : report_cts_cell_name_info

Below is a list of the strings used and their explanation:

String	Description
cuk	Cts: Unknown creator, will not appear in the netlist.
ccl_a	Cts: Created during clustering by the agglom clustering algorithm
cbi	Cts: Created by the swapping buffers and inverters for power.
cex	Cts: Existing cells in the clock tree which cannot be removed.
coi	Cts: Cells created as a result of cancelling out inversions.
ccl	Cts: Created by the clustering process to meet the slew target.
ccd	Cts: Created by clustering for balancing the tree - these cells are not necessary to meet the slew target.
cci	Cts: Created by the clustering process to fix inversion.
csf	Cts: Created by the CTS slew fixing step in cases where clustering did not meet the slew target.
cms	Cts: Created during the process of physically moving clock gates to improve their enable timing.
cid	Cts: Created by CTS on the outputs of weak driving cells to reduce insertion delay.
cdb	Cts: Created by CTS to balance the delays in the clock tree.
cwb	Cts: Created by CTS to balance the wire delays in the clock tree.
cfo	Cts: Created by CTS to reduce fanout skew.
csk	Cts: Created by the CTS skew fixing step to finely balance the clock tree.
cmf	Cts: Created by CTS to buffer long nets.
cbc	Cts: Created by the clock tree conditioning step to clone off sub trees that cannot be optimized by gated synthesis, such as those parts above RAMs, black boxes, and lockup latches.
css	Cts: Created by the early cloning of simple sink allocations.
cdc	Cts: A clock driver created by adding the driver cell process for the add_driver_cell property.
cpd	Cts: A clock driver created below an input port or above an output port specified by attribute cts_add_port_driver.
ccg	Cts: A clock gate created by one of the gated synthesis algorithms.
cse	Cts: A clock driver created above exclude pins to remove them from the clock tree.
cfh	Cts: A clock driver created as part of a flexible H-tree.
cat	Cts: Created by the add_clock_tree_source_group_roots command
cpc_drv	Cts: A clock driver created by post conditioning​
cpc_sk	Cts : A clock driver created by post conditioning
PRO	Post route optimization
PRO_drv	Post route optimization
PRO_sk	Post route optimization
sfc	Cloned by slew fixing
ccc	Cts : Created by clone_clock_cells command
qrb	Cts: A clock driver created by global route buffering
sgb	Cts : A clock driver created by global route buffering
idc	Cloned to reduce insertion delay
vgb	Cts : A clock driver crated by VG buffering
USK	skewClock
cff	Cts: A clock driver created by fanout fixing
CTSG	Unnamed : this should not be used anymore