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AR# 2783

M1.3/M1.4 PAR: The signal "GLOBAL_LOGIC0" is not completely routed--messages about unrouted nets that are not in the input design


General Description:

PAR may issue a message about unrouted nets named "GLOBAL_LOGIC0" or

"GLOBAL_LOGIC1". These are the re-named power and ground nets from the

input design. The design is not completed until all connections

including these have been routed.


In some cases, if the message looks something like this:


Dumping design to file "drink_top_r.ncd".

Total CPU time 22 secs

Total REAL time: 2 mins 41 secs

End of route. 169 routed (97.69%); 0 unrouted active,

4 unrouted pwr/gnd.

No errors found.

The signal "GLOBAL_LOGIC0" is not completely routed.


This is followed further down in the report by:


Total REAL time to Router completion: 2 mins 47 secs

Total CPU time to Router completion: 23 secs

Generating PAR statistics.

The Delay Summary Report

The Score for this design is: 544

The Number of signals not completely routed for this design is: 1

The Average Connection Delay for this design is: 3.706 ns

The Average Connection Delay on critical nets is: 0.000 ns

The Average Clock Skew for this design is: 0.033 ns

The Maximum Pin Delay is: 11.991 ns

The Average Connection Delay on the 10 Worst Nets is: 8.691 ns

Listing Pin Delays by value: (ns)

d <= 10 < d <= 20 < d <= 30 < d <= 40 < d <= 50 d > 50

--------- --------- --------- --------- --------- ---------

157 12 0 0 0 0

Timing Score: 0

Dumping design to file "drink_top_r.ncd".

1 signals are not completely routed.

WARNING:baspw:130 - Design is not completely routed.


If you get this warning, the design is not complete. You

should run Re-entrant Routing and to try and get the net

to route. If that does not work, try a different cost table

and re-run the design.
AR# 2783
Date Created 08/31/2007
Last Updated 04/27/2011
Status Archive
Type General Article