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  • How to run multiple test scenarios?

How to run multiple test scenarios?

UVM 6740
uvm 124 UVM_TESTNAME 2 test 2 multiple 2
rahman
rahman
Forum Access
2 posts
February 12, 2014 at 8:45 am

How can i run several tests cases one after another.
i.e. I have two test scenarios: my_test1 and my_test2.

following command will use only one of the tests.
vsim tb_top +UVM_TESTNAME=my_test1

Now how can i run the scenario my_test2 which should continue from the end of the first test "my_test1".

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Solution

Solution

dave_59
dave_59
Forum Moderator
10868 posts
February 12, 2014 at 9:03 am

You need to change your perspective about what a test is. What you call a test scenario is a time consuming sequence in the UVM, possibly a virtual sequence. A UVM test builds the testbench architecture, decides which sequence(s) are to be run, when to end the test, and whether the test passes or fails. There can only be one test per simulation.

— Dave Rich, Verification Architect, Siemens EDA

Solution

Solution

rahman
rahman
Forum Access
2 posts
February 12, 2014 at 9:32 am

Hello Dave,

Yes, you are right. perspective is different here.
Is the test scenarios (time consuming) to check different functionality of a DUT (directed test) comparable to sequences?
It is not clear if i have different types of tests. i.e. random test and directed test, should i put them in the same test as the testbench architecture remains the same? What can be the reason to have different tests (i.e. my_test1, my_test2) with same environment.
If there is one test per simulation, how should I get total test coverage? Do i need to merge the coverage separately to get the total test coverage?

Thank you.

dave_59
dave_59
Forum Moderator
10868 posts
February 12, 2014 at 10:01 am

In reply to rahman:

You will merge the coverage data regardless of whether you merge the test scenarios into into individual sequences as part of a single test, or keep them as separate tests. Total coverage will be calculated the same. However you will lose the ability to rank the effectiveness of each test scenario if you merge them into a single test.

— Dave Rich, Verification Architect, Siemens EDA

Tanmoy Roy
Tanmoy Roy
Full Access
6 posts
February 12, 2014 at 11:41 pm

you need to write some (tcl) script to run the multiple test cases in regression. UVM will generate the coverage report per test case and at the end of all test cases, total coverage report needs to be generated based on the individual test coverage reports.

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