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link_design problems in PrimePower

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guiliu

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synopsys primepower link

Hello, all

When I am doing PrimePower power analysis on "link_design", I got following messages:

pp_shell> link_design sum
Loading db file '/cad/synopsys/tools/pp_vY-2006.06-SP1/libraries/syn/standard.sldb'
Information: The power model is different from the delay model in the library.
Type 'man SLIB-302' for more information. (SLIB-302)
Linking design sum...
Warning: Unable to resolve reference to 'EXOR3D1' in 'sum'. (LNK-005)
Creating black box for U2/EXOR3D1...
Information: Issuing set_operating_conditions for setting analysis mode on_chip_variation. (PTE-037)
set_operating_conditions -analysis_type on_chip_variation

Designs used to link sum:
<None>

Libraries used to link sum:
<None>

Design 'sum' was successfully linked.
1

Who can explain me :
1. What is power model? What does that mean the "The power model is different from the delay model in the library"?
2. What does that mean "Unable to resolve reference to 'EXOR3D1' in 'sum'"?
3. According to the message, the Designs and Libraries used to link sum are all 'None', but why it says finally" the design 'sum' wassuccessfully linked"?

Thanks a lot!
 

primepower unable resolve reference

Hello,

In order to read the desing and link it, you need library.db file used to synthezise the netlist. Once you have that file try to set the link_library variable to that one and then do again the link.

Hope this helps!

guiliu said:
Hello, all

When I am doing PrimePower power analysis on "link_design", I got following messages:

pp_shell> link_design sum
Loading db file '/cad/synopsys/tools/pp_vY-2006.06-SP1/libraries/syn/standard.sldb'
Information: The power model is different from the delay model in the library.
Type 'man SLIB-302' for more information. (SLIB-302)
Linking design sum...
Warning: Unable to resolve reference to 'EXOR3D1' in 'sum'. (LNK-005)
Creating black box for U2/EXOR3D1...
Information: Issuing set_operating_conditions for setting analysis mode on_chip_variation. (PTE-037)
set_operating_conditions -analysis_type on_chip_variation

Designs used to link sum:
<None>

Libraries used to link sum:
<None>

Design 'sum' was successfully linked.
1

Who can explain me :
1. What is power model? What does that mean the "The power model is different from the delay model in the library"?
2. What does that mean "Unable to resolve reference to 'EXOR3D1' in 'sum'"?
3. According to the message, the Designs and Libraries used to link sum are all 'None', but why it says finally" the design 'sum' wassuccessfully linked"?

Thanks a lot!
Click to expand...
 

Thank u , Atre

But I have already set the link_library before link_design. If u can look at the message again, the first step of the link_design is loading the db file.
 

well, it's quite an abnormal problem.
1. the first problem is caused by the different dimension of lookup table between power and delay in your library. check the .lib file first;
2. you lib doesn't contain the cell "EXOR3D1", also check the celllist for confirm;
3. since your lib doesn't correctly linked, this correct report means nothing.

however, since these problem are quite basic, i dont believe your lib provider is a matured vendor.

regards.
 

Hello,

The problem is that what is in your link_library is not the library you need. You need the vendor library used for the netlist you are trying to read. The .sldb file you see there is from Syn0psys package ;-)

Check for the library!
 

    G

    guiliu

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