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Clock tree synthesis error using innovus

Biasing

Hi All,

When I using the innovus to synthesis the clock tree using the following command:

create_ccopt_clock_tree_spec -filename ccopt.spec

source ccopt.spec

ccopt_design -cts

I found the errors shown below:

**ERROR: (IMPCCOPT-3092): Couldn't load external LP solver library. Error returned:
libCDSCoinUtils.so: cannot open shared object file: No such file or directory
libCoinUtils.so: cannot open shared object file: No such file or directory
libCDSClp.so: cannot open shared object file: No such file or directory
libClp.so: cannot open shared object file: No such file or directory.
Failed to load LP libraries; retrying...
[07/10 10:35:19 73s] **ERROR: (IMPCCOPT-3092): Couldn't load external LP solver library. Error returned:
libCDSCoinUtils.so: cannot open shared object file: No such file or directory
libCoinUtils.so: cannot open shared object file: No such file or directory
libCDSClp.so: cannot open shared object file: No such file or directory
libClp.so: cannot open shared object file: No such file or directory.
Failed to load LP libraries; retrying...
[07/10 10:35:20 73s] **ERROR: (IMPCCOPT-3092): Couldn't load external LP solver library. Error returned:
libCDSCoinUtils.so: cannot open shared object file: No such file or directory
libCoinUtils.so: cannot open shared object file: No such file or directory
libCDSClp.so: cannot open shared object file: No such file or directory
libClp.so: cannot open shared object file: No such file or directory.
Unable to load LP libraries

It seems that some important library is missing.

The version I am using is Innovus v17.11-s080_1 (64bit) under centos 6.9

Could anyone meet similar problems before and have some solutions?

Best regards,

 

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