how to merge the coverage report using IMC?

Currently IMC does not support merge in GUI. For merge you need to invoke IMC in batch mode, specify the merge config option and the apply merge. For example consider the following runs –

./cov_work/scope/test1/
./cov_work/scope/test2/
./cov_work/scope/test3/

To merge coverage for the above runs to all, use:
imc>> merge test1 test2 test3 -out all

After the merge operation, merged results (both .ucm and .ucd files) will be stored in ./cov_work/scope/all

Further to generate reports you can load the merged database and generate reports – imc>>load –run all imc>> report –html/detal/summary –metrics -out path

For details you can refer to IMC UserGuide also please feel free to get in touch with me in case you need further information regarding any IMC operation.

Hi,

 I am trying to merge my coverage results from regrssion with imc or iccr , but the tool gives some error even for a simple packet example.

IMC: getting error : "Data projrction failed "

ICCR: failed due to mismatch in design checksum with the loaded model file "cov_work/scope/icc70938af1_63e43f52.ucm".

options used :-

irun test1.sv -covtest  test1 -coverage all covdut test1 

irun test1.sv -covtest  test1 -coverage all covdut test1 

imc -batch imc.cmd

imc.cmd:-

 merge cov_work/scope/test* -out result  [ ERROR: Data projection failed , when laoding 2nd test]

Can You please help me on this.

Thanks

Siraj 

Hi,

I'd like to merge a few coverage results using imc batch mode.

I'm currently using the gui but if I can do it automatically it will be superb.

[edit]

Found how it's done:

my_run_file contains all the .ucd paths

imc -execcmd "merge -runfile my_run_file -out merge_s -metrics toggle -initial_model union_all;load -run cov_work/scope/merge_s/;report_metrics -out report_s -detail -metrics toggle -inst sim_top"

Thanks,

Eitan

I am merging using batch mode as directed above but in the merged report it is not ignoring the weight 0 coverpoints. Every coverpoint is having the default weight of 1. where as when I analyze the coverage of a single test case in GUI mode, I am able to observe the weight 0 coverpoints and it is also not being considered for the overall coverage percentage.

Can you please tell me why this is happening and how to make the merged coverage ignore the weight 0 coverpoints.