Performing Automatic Mapping

Figure 1. Automatic Mapping
This picture shows a green square inside the check box in the I/O Config pane.
Clicking Automatic Mapping performs two tasks:
  • It performs the processing for automatic mapping
  • It processes intersections.
Note: Although Automatic mapping includes processing intersections, there may be times when you want to process intersections without the overhead of performing automatic mapping. (See Optionally using Process Intersections for such situations.)

Most of the processing that Automatic Mapping performs is not apparent to the user. The only part that the user sees when the tool asks the user to indicate which CHPID assignments to reset (and a progress bar window for mapping and processing intersections).

Perform the following steps for automatic mapping.

  1. Click Automatic Mapping.

    The Reset CHPID Assignments window opens. Figure 2 shows an example of the window with four choices. The fourth choice, is available only for an upgrade or an MES.

    Figure 2. Reset CHPID Assignments window
    This picture shows the Reset CHPID Assignments window.
  2. Select the CHPIDs you want to reset.

    You can select none, all, or any number of check boxes.

    Note: None of the choices affects CIB or CS5 type CHPIDs associated with IFB Link, HCA, or PCIe channel types.
    Reset CHPIDs assigned by Automatic Mapping
    Resets all CHPIDs processed by previous automatic mapping in this session.

    By default, this option is selected. (To select none of the options, clear this default selection or click Deselect All.)

    Reset CHPIDs assigned by Manual Mapping
    Resets CHPIDS for which manual mapping assigned PCHIDs.
    Reset CHPIDs assigned by IOCP
    Resets CHPIDS assigned in the IOCP input file.
    Selecting this option may require recabling after automatic mapping. The following message is displayed (in red on the Reset CHPID Assignments window):
    Resetting IOCP assignments may require recabling
    Reset CHPIDs assigned by CMT for config files
    Resets assignments the CHPID Mapping Tool made (for an upgrade or an MES). The tool resets the assignments only if the project's IOCP file includes CHPID Mapping Tool assignments for config files.

    Recommendation: Even if Reset CHPIDs assigned by CMT for config files is available, you are recommended not to select it. Suppose you run automatic mapping and review the intersections, concluding that the configuration file assignments are causing unacceptable intersections. You are then recommended to use manual mapping to reset only those configuration file assignments causing the unacceptable intersections.

  3. Click OK.

After the tool completes processing, you can view any intersections in the CHPID Groups pane of Manual Mapping or CU Priorities view.