ggh
Newbie level 2
Hi. I am getting the following error while running LVS
" Nothing in the layout.
The corresponding cells couldn't be identified"
I think the problem is that for some reason Calibre cannot find identify the layout for the std cells. Does this sound correct? Any idea how to solve it ?
Thanks,
The detailed transcript is as follows:
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- STANDARD VERIFICATION RULE FILE COMPILATION MODULE -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--- RULE FILE = /home/golsa/cadence/_rules_
//
// Rule file generated on Wed Dec 08 20:56:54 CST 2010
// by Calibre Interactive - LVS (v2009.4_31.27)
//
// *** PLEASE DO NOT MODIFY THIS FILE ***
//
//
LAYOUT PATH "RVG.calibre.db"
LAYOUT PRIMARY "RVG"
LAYOUT SYSTEM GDSII
SOURCE PATH "/home/golsa/cadence/RVG.src.net"
SOURCE PRIMARY "RVG"
SOURCE SYSTEM SPICE
MASK SVDB DIRECTORY "svdb" QUERY
LVS REPORT "RVG.lvs.report"
LVS REPORT MAXIMUM 50
LVS RECOGNIZE GATES ALL
LVS ABORT ON SOFTCHK NO
LVS ABORT ON SUPPLY ERROR YES
LVS IGNORE PORTS NO
LVS SHOW SEED PROMOTIONS NO
LVS SHOW SEED PROMOTIONS MAXIMUM 50
LVS ISOLATE SHORTS NO
VIRTUAL CONNECT COLON NO
VIRTUAL CONNECT REPORT NO
LVS EXECUTE ERC YES
ERC RESULTS DATABASE "RVG.erc.results"
ERC SUMMARY REPORT "RVG.erc.summary" REPLACE HIER
ERC MAXIMUM RESULTS 1000
ERC MAXIMUM VERTEX 4096
#IFDEF $MGC_CALIBRE_INTERACTIVE
DRC ICSTATION YES
#ENDIF
INCLUDE "rules"
--- STANDARD VERIFICATION RULE FILE COMPILATION MODULE COMPLETED. CPU
TIME = 0 REAL TIME = 0 LVHEAP = 0/1/1
--- CALIBRE::HIERARCHICAL CIRCUIT EXTRACTOR - Wed Dec 8 20:56:57 2010
// Applying licensing policy...
// calibrepvs_s license acquired.
// Licensed Products
// -----------------
// Base products running on 1 core:
// - LVS (Hierarchical)
// - LVS Extraction
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- CALIBRE LAYOUT DATA INPUT MODULE -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--- LAYOUT SYSTEM = GDS
--- LAYOUT MAGNIFICATION = 1
--------------------------------------------------------------------------------
----- GDS FILE SUMMARY INFORMATION -----
--------------------------------------------------------------------------------
GDS FILENAME: RVG.calibre.db
GDS VERSION: 5
LIBRARY NAME: PUF
LAST MODIFIED: ON 2010/12/8 AT 20:56:19
LAST ACCESSED: ON 2010/12/8 AT 20:56:57
DATABASE PRECISION: 0.001 user units per database unit
PHYSICAL PRECISION: 1e-09 meters per database unit
MAGNIFICATION: 1
--------------------------------------------------------------------------------
----- GDS INPUT DATA FOR INDIVIDUAL CELLS -----
--------------------------------------------------------------------------------
CELL NAME PLACEMENTS ARRAYS POLYGONS PATHS TEXTS
--------------------------------------------------------------------------------
VM1_M2_0 0 0 3 0 0
VPC_M1_1 0 0 3 0 0
RVG 9 0 7 17 5
nfet_0 0 0 11 0 2
nfet_1 0 0 18 0 2
subc_2 0 0 4 1 0
NOTE: UNUSED geometric data is present on the following layer/datatype pairs:
LAYER = 2 DATATYPE = 0
LAYER = 7 DATATYPE = 0
LAYER = 10 DATATYPE = 0
LAYER = 14 DATATYPE = 0
LAYER = 15 DATATYPE = 0
LAYER = 15 DATATYPE = 32
LAYER = 16 DATATYPE = 0
LAYER = 17 DATATYPE = 0
LAYER = 17 DATATYPE = 32
LAYER = 62 DATATYPE = 117
NOTE: The following required simple layers are EMPTY:
--- LAYOUT DATABASE CONSTRUCTOR COMPLETED. CPU TIME = 0 REAL TIME =
0 LVHEAP = 1/5/5
CONSTRUCTING HIERARCHICAL DATABASE
COPYING LAYOUT DATABASE
PROCESSING TEXT
ELIMINATING DUPLICATE TEXT
ELIMINATING EMPTY CELLS
RVG
subc_2
nfet_1
nfet_0
EXPANDING UNIQUE VERY SMALL CELL PLACEMENTS
EXPANDING UNIQUE TOP LAYER CELL PLACEMENTS
COMPUTING CELL-TO-WORLD TRANSFORMS
SORTING PLACEMENTS
PACKING HIERARCHY
COMPUTING PLACEMENT OVERLAP RECORDS
COMPUTING CELL OVERLAP AREAS
INTERSECTING PLACEMENTS AND OVERLAP AREAS
HIERARCHICAL DATABASE CONSTRUCTOR COMPLETE.
CPU TIME = 0 REAL TIME = 0 LVHEAP = 1/5/5
--------------------------------------------------------------------------------
----- TEXT OBJECTS FOR CONNECTIVITY EXTRACTION -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- TEXT OBJECTS FOR WITH TEXT OPERATIONS -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- TEXT OBJECTS FOR EXPAND TEXT OPERATIONS -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- TEXT OBJECTS FOR CAPI OPERATIONS -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- PORTS -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (SIMPLE LAYER GEOMETRIES) -----
--------------------------------------------------------------------------------
SIMPLE LAYER GEOMETRIES
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (ORIGINAL LAYER GEOMETRIES) -----
--------------------------------------------------------------------------------
ORIGINAL LAYER INITIAL GEOMETRIES FINAL GEOMETRIES
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (TEXT FOR CONNECTIVITY EXTRACTION) -----
--------------------------------------------------------------------------------
SIMPLE LAYER TEXTS
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (TEXT FOR WITH TEXT OPERATIONS) -----
--------------------------------------------------------------------------------
SIMPLE LAYER TEXTS
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (TEXT FOR EXPAND TEXT OPERATIONS) -----
--------------------------------------------------------------------------------
SIMPLE LAYER TEXTS
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (TEXT FOR CAPI OPERATIONS) -----
--------------------------------------------------------------------------------
SIMPLE LAYER TEXTS
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (PORTS) -----
--------------------------------------------------------------------------------
SIMPLE LAYER TEXTS
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- CELL AND PLACEMENT SUMMARY -----
--------------------------------------------------------------------------------
CELL TYPE CELLS PLACEMENTS FLAT PLACEMENTS
--------------------------------------------------------------------------------
USER 1 0 0
VERY SMALL 0 0 0
TOP LAYER 0 0 0
VERY SMALL 0 0 0
PSEUDO 0 0 0
TOTAL 1 0 0
--------------------------------------------------------------------------------
----- LAYOUT DATA INPUT MODULE SUMMARY -----
--------------------------------------------------------------------------------
--- TOTAL GEOMETRIES READ FROM SIMPLE LAYERS = 0
--- TOTAL GEOMETRIES READ FROM ORIGINAL LAYERS = 0 (0)
--- TOTAL GEOMETRIES WRITTEN TO ORIGINAL LAYERS = 0 (0)
--- LVHEAP = 1/5/5
--- DATABASE EXTENT = [ 0.01 , 0.01 ] -> [ 0.99 , 0.99 ]
--- GEOMETRIC DEPTH = ALL
--- TEXT DEPTH FOR CONNECTIVITY EXTRACTION = PRIMARY
--- TOTAL TEXT OBJECTS FOR CONNECTIVITY EXTRACTION = 0 (0)
--- TOTAL TEXT OBJECTS FOR WITH TEXT OPERATIONS = 0 (0)
--- TOTAL TEXT OBJECTS FOR EXPAND TEXT OPERATIONS = 0 (0)
--- TOTAL TEXT OBJECTS FOR CAPI OPERATIONS = 0 (0)
--- TOTAL PORT OBJECTS = 0 (0)
--- GEOMETRY FLAGGING = ACUTE (NO) SKEW (NO) ANGLED (NO) OFFGRID (NO)
NONSIMPLE POLYGON (NO) NONSIMPLE PATH (NO)
--- PRIMARY CELL = RVG
--- EXCLUDED CELLS =
--- CALIBRE LAYOUT DATA INPUT MODULE COMPLETED. CPU TIME = 0 REAL TIME = 0
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- CALIBRE::HIERARCHICAL CIRCUIT EXTRACTOR - EXECUTIVE MODULE -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
CONNECTIVITY EXTRACTION TOTAL LAYER PREPARATION TIME: CPU TIME = 0
REAL TIME = 0 LVHEAP = 1/5/5 MALLOC = 15/15/15 ELAPSED TIME = 0
CONNECTIVITY EXTRACTION
-----------------------
NC = Net Count IPC = Internal Pin Count
CEC = Cell Edge Count PEC = Promoted Edge Count
LVHEAP = Geometry heap memory allocation.
MALLOC = Total heap memory allocation.
CELL RVG
RVG (NC=0 IPC=0 CEC=0 PEC=0 CFGC=0)
RVG CPU TIME = 0 REAL TIME = 0 LVHEAP = 1/5/5 MALLOC =
15/15/15 ELAPSED TIME = 0
TOTAL CEC=0 PEC=0
(.etc) ....
ERROR: Corresponding cells could not be identified.
ERROR: Nothing in layout.
*** Calibre finished with Exit Code: 4 *
" Nothing in the layout.
The corresponding cells couldn't be identified"
I think the problem is that for some reason Calibre cannot find identify the layout for the std cells. Does this sound correct? Any idea how to solve it ?
Thanks,
The detailed transcript is as follows:
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- STANDARD VERIFICATION RULE FILE COMPILATION MODULE -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--- RULE FILE = /home/golsa/cadence/_rules_
//
// Rule file generated on Wed Dec 08 20:56:54 CST 2010
// by Calibre Interactive - LVS (v2009.4_31.27)
//
// *** PLEASE DO NOT MODIFY THIS FILE ***
//
//
LAYOUT PATH "RVG.calibre.db"
LAYOUT PRIMARY "RVG"
LAYOUT SYSTEM GDSII
SOURCE PATH "/home/golsa/cadence/RVG.src.net"
SOURCE PRIMARY "RVG"
SOURCE SYSTEM SPICE
MASK SVDB DIRECTORY "svdb" QUERY
LVS REPORT "RVG.lvs.report"
LVS REPORT MAXIMUM 50
LVS RECOGNIZE GATES ALL
LVS ABORT ON SOFTCHK NO
LVS ABORT ON SUPPLY ERROR YES
LVS IGNORE PORTS NO
LVS SHOW SEED PROMOTIONS NO
LVS SHOW SEED PROMOTIONS MAXIMUM 50
LVS ISOLATE SHORTS NO
VIRTUAL CONNECT COLON NO
VIRTUAL CONNECT REPORT NO
LVS EXECUTE ERC YES
ERC RESULTS DATABASE "RVG.erc.results"
ERC SUMMARY REPORT "RVG.erc.summary" REPLACE HIER
ERC MAXIMUM RESULTS 1000
ERC MAXIMUM VERTEX 4096
#IFDEF $MGC_CALIBRE_INTERACTIVE
DRC ICSTATION YES
#ENDIF
INCLUDE "rules"
--- STANDARD VERIFICATION RULE FILE COMPILATION MODULE COMPLETED. CPU
TIME = 0 REAL TIME = 0 LVHEAP = 0/1/1
--- CALIBRE::HIERARCHICAL CIRCUIT EXTRACTOR - Wed Dec 8 20:56:57 2010
// Applying licensing policy...
// calibrepvs_s license acquired.
// Licensed Products
// -----------------
// Base products running on 1 core:
// - LVS (Hierarchical)
// - LVS Extraction
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- CALIBRE LAYOUT DATA INPUT MODULE -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--- LAYOUT SYSTEM = GDS
--- LAYOUT MAGNIFICATION = 1
--------------------------------------------------------------------------------
----- GDS FILE SUMMARY INFORMATION -----
--------------------------------------------------------------------------------
GDS FILENAME: RVG.calibre.db
GDS VERSION: 5
LIBRARY NAME: PUF
LAST MODIFIED: ON 2010/12/8 AT 20:56:19
LAST ACCESSED: ON 2010/12/8 AT 20:56:57
DATABASE PRECISION: 0.001 user units per database unit
PHYSICAL PRECISION: 1e-09 meters per database unit
MAGNIFICATION: 1
--------------------------------------------------------------------------------
----- GDS INPUT DATA FOR INDIVIDUAL CELLS -----
--------------------------------------------------------------------------------
CELL NAME PLACEMENTS ARRAYS POLYGONS PATHS TEXTS
--------------------------------------------------------------------------------
VM1_M2_0 0 0 3 0 0
VPC_M1_1 0 0 3 0 0
RVG 9 0 7 17 5
nfet_0 0 0 11 0 2
nfet_1 0 0 18 0 2
subc_2 0 0 4 1 0
NOTE: UNUSED geometric data is present on the following layer/datatype pairs:
LAYER = 2 DATATYPE = 0
LAYER = 7 DATATYPE = 0
LAYER = 10 DATATYPE = 0
LAYER = 14 DATATYPE = 0
LAYER = 15 DATATYPE = 0
LAYER = 15 DATATYPE = 32
LAYER = 16 DATATYPE = 0
LAYER = 17 DATATYPE = 0
LAYER = 17 DATATYPE = 32
LAYER = 62 DATATYPE = 117
NOTE: The following required simple layers are EMPTY:
--- LAYOUT DATABASE CONSTRUCTOR COMPLETED. CPU TIME = 0 REAL TIME =
0 LVHEAP = 1/5/5
CONSTRUCTING HIERARCHICAL DATABASE
COPYING LAYOUT DATABASE
PROCESSING TEXT
ELIMINATING DUPLICATE TEXT
ELIMINATING EMPTY CELLS
RVG
subc_2
nfet_1
nfet_0
EXPANDING UNIQUE VERY SMALL CELL PLACEMENTS
EXPANDING UNIQUE TOP LAYER CELL PLACEMENTS
COMPUTING CELL-TO-WORLD TRANSFORMS
SORTING PLACEMENTS
PACKING HIERARCHY
COMPUTING PLACEMENT OVERLAP RECORDS
COMPUTING CELL OVERLAP AREAS
INTERSECTING PLACEMENTS AND OVERLAP AREAS
HIERARCHICAL DATABASE CONSTRUCTOR COMPLETE.
CPU TIME = 0 REAL TIME = 0 LVHEAP = 1/5/5
--------------------------------------------------------------------------------
----- TEXT OBJECTS FOR CONNECTIVITY EXTRACTION -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- TEXT OBJECTS FOR WITH TEXT OPERATIONS -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- TEXT OBJECTS FOR EXPAND TEXT OPERATIONS -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- TEXT OBJECTS FOR CAPI OPERATIONS -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- PORTS -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (SIMPLE LAYER GEOMETRIES) -----
--------------------------------------------------------------------------------
SIMPLE LAYER GEOMETRIES
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (ORIGINAL LAYER GEOMETRIES) -----
--------------------------------------------------------------------------------
ORIGINAL LAYER INITIAL GEOMETRIES FINAL GEOMETRIES
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (TEXT FOR CONNECTIVITY EXTRACTION) -----
--------------------------------------------------------------------------------
SIMPLE LAYER TEXTS
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (TEXT FOR WITH TEXT OPERATIONS) -----
--------------------------------------------------------------------------------
SIMPLE LAYER TEXTS
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (TEXT FOR EXPAND TEXT OPERATIONS) -----
--------------------------------------------------------------------------------
SIMPLE LAYER TEXTS
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (TEXT FOR CAPI OPERATIONS) -----
--------------------------------------------------------------------------------
SIMPLE LAYER TEXTS
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- LAYER READ SUMMARY (PORTS) -----
--------------------------------------------------------------------------------
SIMPLE LAYER TEXTS
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- CELL AND PLACEMENT SUMMARY -----
--------------------------------------------------------------------------------
CELL TYPE CELLS PLACEMENTS FLAT PLACEMENTS
--------------------------------------------------------------------------------
USER 1 0 0
VERY SMALL 0 0 0
TOP LAYER 0 0 0
VERY SMALL 0 0 0
PSEUDO 0 0 0
TOTAL 1 0 0
--------------------------------------------------------------------------------
----- LAYOUT DATA INPUT MODULE SUMMARY -----
--------------------------------------------------------------------------------
--- TOTAL GEOMETRIES READ FROM SIMPLE LAYERS = 0
--- TOTAL GEOMETRIES READ FROM ORIGINAL LAYERS = 0 (0)
--- TOTAL GEOMETRIES WRITTEN TO ORIGINAL LAYERS = 0 (0)
--- LVHEAP = 1/5/5
--- DATABASE EXTENT = [ 0.01 , 0.01 ] -> [ 0.99 , 0.99 ]
--- GEOMETRIC DEPTH = ALL
--- TEXT DEPTH FOR CONNECTIVITY EXTRACTION = PRIMARY
--- TOTAL TEXT OBJECTS FOR CONNECTIVITY EXTRACTION = 0 (0)
--- TOTAL TEXT OBJECTS FOR WITH TEXT OPERATIONS = 0 (0)
--- TOTAL TEXT OBJECTS FOR EXPAND TEXT OPERATIONS = 0 (0)
--- TOTAL TEXT OBJECTS FOR CAPI OPERATIONS = 0 (0)
--- TOTAL PORT OBJECTS = 0 (0)
--- GEOMETRY FLAGGING = ACUTE (NO) SKEW (NO) ANGLED (NO) OFFGRID (NO)
NONSIMPLE POLYGON (NO) NONSIMPLE PATH (NO)
--- PRIMARY CELL = RVG
--- EXCLUDED CELLS =
--- CALIBRE LAYOUT DATA INPUT MODULE COMPLETED. CPU TIME = 0 REAL TIME = 0
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
----- CALIBRE::HIERARCHICAL CIRCUIT EXTRACTOR - EXECUTIVE MODULE -----
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
CONNECTIVITY EXTRACTION TOTAL LAYER PREPARATION TIME: CPU TIME = 0
REAL TIME = 0 LVHEAP = 1/5/5 MALLOC = 15/15/15 ELAPSED TIME = 0
CONNECTIVITY EXTRACTION
-----------------------
NC = Net Count IPC = Internal Pin Count
CEC = Cell Edge Count PEC = Promoted Edge Count
LVHEAP = Geometry heap memory allocation.
MALLOC = Total heap memory allocation.
CELL RVG
RVG (NC=0 IPC=0 CEC=0 PEC=0 CFGC=0)
RVG CPU TIME = 0 REAL TIME = 0 LVHEAP = 1/5/5 MALLOC =
15/15/15 ELAPSED TIME = 0
TOTAL CEC=0 PEC=0
(.etc) ....
ERROR: Corresponding cells could not be identified.
ERROR: Nothing in layout.
*** Calibre finished with Exit Code: 4 *