dc_shell compile_ultra warning

[sarah_st]

compile_ultra

When I run compile_ultra I get this warning:
Warning: Failed to read dw_foundation.sldb for the compile command. (UISN-44)

Should I be concerned? Is my design still been optimized using compile_ultra settings or is it just a regular compile with high effort?

Thanks

More output below:

Information: Data-path optimization is enabled. (DP-1)
Warning: Failed to read dw_foundation.sldb for the compile command. (UISN-44)
Information: Evaluating DesignWare library utilization. (UISN-27)

============================================================================
| DesignWare Building Block Library | Version | Available |
============================================================================
| Basic DW Building Blocks | X-2005.09-DWF_0509 | * |
| Licensed DW Building Blocks | | * |
============================================================================

 

[sree205]

compile_ultra -retime

This is the description for the warning that's posted. This information can be obtained from solvnet.

DESCRIPTION
Compile ultra flow tried to read dw_foundation.sldb but failed to do so.
You are using the ultra optimization synthesis flow, but the DesignWare synthetic
library is not listed in synthetic_library list. This could result in sub-optimal
synthesis quality.
For compile_ultra command, dw_foundation.sldb is automatically added to the
synthetic_library in the current command. For set_ultra_optimization, if you do not
specify the ’-no_auto_dwlib’ option, then dw_foundation.sldb is automatically added
to the synthetic_library in the subsequent compile command. Until you set
set_ultra_optimization to be false or use ’-no_auto_dwlib’ option in the
set_ultra_optimization command.
You get this message because the compile command tried to read the
dw_foundation.sldb library but failed to do so.

WHAT NEXT
Add DesignWare synthetic library to your synthetic_library and link_library list and
make sure the dw_foundation.sldb is in the search_path.

My inference : I believe that even without this designware component, synthesis should work well.

 

[sarah_st]

compile_ultra vs compile

Thanks. you are right.