Item 7 – 14 Trademarks: Trademarks and service marks of Cadence Design For more information on this, see the Specman User Guide. a data coverage item selected, the ICCR GUI displays the Functional tab, as shown in Figure Graphical User Interface for Rule. Customization . Incisive Tools. ICCR. SpecView. Unified coverage visualization. Higher performance for. Trademarks: Trademarks and service marks of Cadence Design Systems, Inc. ( Cadence) contained in this document are attributed to Cadence.
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Use, duplication, or disclosure by the Government is subject to restrictions as set forth in FAR Contents 1 Using Enterprise Manager.
Generating HDL Code Coverage Using Simulink and Cadence Incisive – MATLAB & Simulink
You can create an executable plan using Enterprise Planner if you have an Enterprise Manager license or your favorite editor. Executable plans let you map specific metrics to each feature that you intend to verify, thus enabling you to track project progress towards closure. This manual does not cover project planning. Without changing the way you run regressions, you can simply provide Enterprise Manager with the name of the top-level directory containing regression results.
Enterprise Manager collects the run results and displays them as a single session, thus facilitating the analysis of run failures and cumulative coverage results. After you have set up a baseline regression environment and can launch regular regressions, you can continue to customize and automate the environment to guidee project resources effectively and facilitate regression analysis and reporting of results. The following sections describe in more detail what yser need to do to enable Enterprise Manager to work for you: This feature is not currently supported for Incisive Formal Ixcr.
To perform regression analysis guive runner integration: Add the Enterprise Manager environment to the run execution environment. When the internal runner is not used, a single-run vsof contains only the results of a single run, including: Collection allows you to: Once a collected vsof has been created, regardless cadnece whether all the runs have completed, you can load it into Desktop Manager or Enterprise Manager and start to analyze failures.
Using the vsof attributes to filter and group the run results, you cadejce quickly determine the root cause of similar failures across multiple runs. This allows you to easily see whether guidf runs failed because of the same error. Figure below shows a Giide Failure view where three runs failed because of a mismatch between the write burst that was expected and the write burst that was actually collected.
Figure shows a sample vPlan window displaying the results from scenarios testcasescheckers assertionsfunctional coverage and code coverage. It requires either a Desktop Manager or an Enterprise Manager license.
The following section attempts to give you the necessary conceptual background for runner integration by explaining how attributes enable: To perform regression analysis and management with runner integration: You define the tests that you want to run in a Verification Session Input File vsif file.
For each test, and the session itself, iser define various attributes. For example, the following vsif defines one attribute for the session and four attributes for a single test. You or someone familiar with your environment must create this script.
You can use the scan script provided with Enterprise Manager in the following way: When you launch the session, the Enterprise Manager session runner calls the run script to execute each test defined in the vsif.
The runner does not pass vsif attributes directly to the agent a simulator, for example that executes the test. Instead, the runner exports certain attributes as environment variables, and the run script picks up these variables. When ussr run completes, the runner calls the scan script to extract attributes and failure information from the log file and append it to a Verification Session Output File vsof.
As with cadencw vsif file, for each test and for the session itself, various attributes are defined in the vsof, some copied from the vsif and others extracted from the log file.
Incisive Coverage User Guide
Enterprise Manager provides filter files for each agent. The filter files contain Perl filters that extract information from the messages output by each agent. For example, given the following message from Incisive Simulator in the log file: Snapshot is missing The scan script, when invoked with the IUS filter file, adds the following failure information to the vsof: When the session completes, you open the vsof file in Enterprise Manager and use the vsof attributes to filter and group the session results.
For example, the figure below shows that 3 runs failed because of a mismatch between the expected write burst and the write burst that was actually collected. The vsof file also contains attributes that define the location of the coverage files, so these files are automatically loaded. Once you have analyzed the failures, you can launch a rerun from Enterprise Manager. You can also change other attributes of the run when you re-execute it.
If you plan to use your own test harness and use Enterprise Manager for regression analysis only read the following chapters: This manual does not cover every aspect of some basic tasks.
Icc user guide –
It also does not cover the less common tasks, such as automating or customizing the regression environment. For information, see the following manuals: This manual does not cover the tasks that require an Enterprise Manager license.
Any object struct, list, string, or long used that is not used by the vManager scheduler is considered unusable and defined by vManager as garbage. The recycling process is called Garbage Collection GC. By default, garbage collection is automated to optimize runtime performance and memory usage for the machines on which vManager is running.
Note Garbage collection returns freed memory to vManager, not to the operating system, so from the system perspective, the memory is still icfr of the vManager process. This chapter contains the following sections: This automation is controlled by the set of config memory options described in this section: To disable automated GC: This approximation is relative to the physical memory installed on the local machine.
If vManager fails to retrieve the machine memory, the optimal process size defaults cwdence 2GB. To set the optimal process size: Instead, vManager triggers on-the-fly GC for efficiency in the following situations: Note In most cases, regular GC is used. If on-the-fly GC is caadence to free ifcr memory, disk-based GC is used. Whenever you explicitly set anyone of the following memory parameters: Ensure that disk-based GC is enabled and that sufficient disk space is available.
Disk-based GC is enabled by default. For more information on how to set these memory configuration values and what their ranges are, see configure memory in the Specman Command Reference.
This feature is not currently supported for IFV. The following sections describe in detail how to enable this capability: If necessary, install the EMGR release. This step may already have been performed as part of an Incisive installation.
If you explicitly trigger vsof creation, a separate file is created for each invocation of the tools. To trigger vsof creation, do one of the following: While triggering the vsof creation, the following two operations are executed: These types of failures, including license checkout failures, HDL compilation or elaboration failures, malfunctioning disk mounts, and abnormal aborts, should be caught by the external runner or regression harness.
If this directory is not writable, the tool writes this information in the log file and exits immediately with exit status 1. By default the single-run vsof is created in the execution directory with a unique name constructed from tool identifiers.
This prevents multiple runs from over-writing other vsofs. Note If irun executes both Specman and the simulator, it includes yuide from both tools in the vsof. Note This option is supported for irun and ncsim.
In xadence, it contains cadencee information which is automatically extracted from the log via scanning process. Below is the list of environment variables that enable user control over the content of the Single Run vsof file. Those variables have a corresponding vsif attributes with the same functionality. Use this variable in order to manually specifying the log location. Log location is extremely important in order to enable log scanning.
For example, you can disable a specific filter by removing it from the automatic filter files in the following way: