Intel® Quartus® Prime Pro Edition User Guide: Design Compilation

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ID 683236
Date 12/04/2023
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Document Table of Contents
Document Table of Contents x
1. Answers to Top FAQs 2. Design Compilation 3. Reducing Compilation Time 4. Intel® Quartus® Prime Pro Edition User Guide Design Compilation Archives A. Intel® Quartus® Prime Pro Edition User Guides
2. Design Compilation x
2.1. Compilation Overview 2.2. Using the Compilation Dashboard 2.3. Design Netlist Infrastructure 2.4. Using the Node Finder 2.5. Analysis & Elaboration Flow 2.6. Design Synthesis 2.7. Design Place and Route 2.8. Incremental Optimization Flow 2.9. Fast Forward Compilation Flow 2.10. Full Compilation Flow 2.11. Compilation Monitoring Mode 2.12. Exporting Compilation Results 2.13. Integrating Other EDA Tools 2.14. Compiler Optimization Techniques 2.15. Synthesis Language Support 2.16. Synthesis Settings Reference 2.17. Fitter Settings Reference 2.18. Design Compilation Revision History
2.1. Compilation Overview x
2.1.1. Compilation Flows 2.1.2. Compilation Hierarchy 2.1.3. Compilation on a Compute Farm
2.3. Design Netlist Infrastructure x
2.3.1. DNI Netlist Five-Box Data Model
2.5. Analysis & Elaboration Flow x
2.5.1. Exploring the RTL Analyzer 2.5.2. Use Case Examples
2.5.1. Exploring the RTL Analyzer x
2.5.1.1. Sweep Hints Viewer 2.5.1.2. Object Set Console 2.5.1.3. Module Interfaces 2.5.1.4. Bundled Instances Viewing Unbundled Instances 2.5.1.5. Auto-hide Unconnected Pins 2.5.1.6. Filtering Ports and Nets 2.5.1.7. Expand Connections
2.5.2. Use Case Examples x
2.5.2.1. Scripting Routine Tasks Using Tcl Commands 2.5.2.2. Traversing the Design Netlist Using Tcl Commands
2.6. Design Synthesis x
2.6.1. Preparing for Design Synthesis 2.6.2. Running Synthesis 2.6.3. Using Synopsys* Design Constraint (SDC) on RTL Files 2.6.4. Post-Synthesis Static Timing Analysis (STA)
2.6.2. Running Synthesis x
2.6.2.1. Preserving Registers During Synthesis 2.6.2.2. Preserving Signals for Monitoring and Debugging 2.6.2.3. Viewing Synthesis Reports 2.6.2.4. Viewing Synthesis Dynamic Report
2.6.3. Using Synopsys* Design Constraint (SDC) on RTL Files x
2.6.3.1. Registering the SDC-on-RTL SDC File 2.6.3.2. Applying the SDC-on-RTL Constraints 2.6.3.3. Inspecting SDC-on-RTL Constraints 2.6.3.4. Creating Constraints in SDC-on-RTL SDC Files 2.6.3.5. Using Entity-Based SDC-on-RTL Constraints 2.6.3.6. Types of SDC Files Used in the Intel® Quartus® Prime Software 2.6.3.7. Example: Using SDC-on-RTL Features
2.7. Design Place and Route x
2.7.1. Running the Fitter 2.7.2. Viewing Fitter Reports
2.7.1. Running the Fitter x
2.7.1.1. Fitter Commands 2.7.1.2. Disabling or Enabling Physical Synthesis Optimization
2.7.2. Viewing Fitter Reports x
2.7.2.1. Plan Stage Reports 2.7.2.2. Place Stage Reports 2.7.2.3. Route Stage Reports 2.7.2.4. Retime Stage Reports 2.7.2.5. Finalize Stage Reports
2.7.2.2. Place Stage Reports x
2.7.2.2.1. Global Signal Visualization Report
2.7.2.3. Route Stage Reports x
2.7.2.3.1. Global Router Congestion Hotspot Summary Report 2.7.2.3.2. Global Router Wire Utilization Map Report
2.8. Incremental Optimization Flow x
2.8.1. Concurrent Analysis During Synthesis or Fitting 2.8.2. Analyzing Compiler Snapshots 2.8.3. Validating Periphery (I/O) after the Plan Stage
2.8.2. Analyzing Compiler Snapshots x
2.8.2.1. Running Snapshot Viewer
2.8.2.1. Running Snapshot Viewer x
2.8.2.1.1. Analyzing Failing Paths with Snapshot Viewer 2.8.2.1.2. Analyzing Clocking with Snapshot Viewer 2.8.2.1.3. Analyzing High Fan-out Nets with Snapshot Viewer 2.8.2.1.4. Validating Timing Constraints with Snapshot Viewer 2.8.2.1.5. Analyzing Congestion with Snapshot Viewer
2.9. Fast Forward Compilation Flow x
2.9.1. Step 1: Run Register Retiming 2.9.2. Step 2: Review Retiming Results 2.9.3. Step 3: Run Fast Forward Compile 2.9.4. Step 4: Review Fast Forward Results 2.9.5. Step 5: Implement Fast Forward Recommendations 2.9.6. Retiming Restrictions and Workarounds
2.9.2. Step 2: Review Retiming Results x
2.9.2.1. Locate Critical Chains
2.9.3. Step 3: Run Fast Forward Compile x
2.9.3.1. Fast Forward Compile By Hierarchy 2.9.3.2. HyperFlex Settings
2.9.4. Step 4: Review Fast Forward Results x
2.9.4.1. Clock Fmax Summary Report 2.9.4.2. Fast Forward Details Report
2.10. Full Compilation Flow x
2.10.1. Full Compilation Flow with Temporary Optimization Mode
2.12. Exporting Compilation Results x
2.12.1. Exporting a Version-Compatible Compilation Database 2.12.2. Importing a Version-Compatible Compilation Database 2.12.3. Creating a Design Partition 2.12.4. Exporting a Design Partition 2.12.5. Reusing a Design Partition 2.12.6. Viewing Quartus Database File Information 2.12.7. Clearing Compilation Results
2.12.6. Viewing Quartus Database File Information x
2.12.6.1. QDB File Attribute Types
2.13. Integrating Other EDA Tools x
2.13.1. Generating a VQM Netlist for other EDA Tools
2.14. Compiler Optimization Techniques x
2.14.1. Compiler Optimization Modes 2.14.2. Allow Register Retiming 2.14.3. Automatic Gated Clock Conversion 2.14.4. Enable Intermediate Fitter Snapshots 2.14.5. Fast Preserve Option 2.14.6. Fractal Synthesis Optimization
2.14.6. Fractal Synthesis Optimization x
2.14.6.1. Enabling or Disabling Fractal Synthesis
2.15. Synthesis Language Support x
2.15.1. Verilog and SystemVerilog Synthesis Support 2.15.2. VHDL Synthesis Support
2.15.1. Verilog and SystemVerilog Synthesis Support x
2.15.1.1. Verilog HDL Input Settings (Settings Dialog Box) 2.15.1.2. Design Libraries 2.15.1.3. Verilog HDL Configuration 2.15.1.4. Initial Constructs and Memory System Tasks 2.15.1.5. Verilog HDL Macros
2.15.1.3. Verilog HDL Configuration x
2.15.1.3.1. Hierarchical Design Configurations
2.15.2. VHDL Synthesis Support x
2.15.2.1. VHDL Input Settings (Settings Dialog Box) 2.15.2.2. VHDL Standard Libraries and Packages 2.15.2.3. VHDL wait Constructs 2.15.2.4. VHDL-2019 Conditional Analysis Tool Directives
2.16. Synthesis Settings Reference x
2.16.1. Advanced Synthesis Settings
3. Reducing Compilation Time x
3.1. Factors Affecting Compilation Results 3.2. Strategies to Reduce the Overall Compilation Time 3.3. Reducing Synthesis Time and Synthesis Netlist Optimization Time 3.4. Reducing Placement Time 3.5. Reducing Routing Time 3.6. Reducing Static Timing Analysis Time 3.7. Setting Process Priority 3.8. Reducing Compilation Time Revision History
3.2. Strategies to Reduce the Overall Compilation Time x
3.2.1. Running the ECO Compilation Flow 3.2.2. Enabling Multi-Processor Compilation 3.2.3. Using Block-Based Compilation
3.2.2. Enabling Multi-Processor Compilation x
3.2.2.1. Processor Base Clock Frequency 3.2.2.2. Random Access Memory (RAM) 3.2.2.3. Storage
3.3. Reducing Synthesis Time and Synthesis Netlist Optimization Time x
3.3.1. Settings to Reduce Synthesis Time and Synthesis Netlist Optimization Time 3.3.2. Use Appropriate Coding Style to Reduce Synthesis Time
3.4. Reducing Placement Time x
3.4.1. Placement Effort Multiplier Settings
3.5. Reducing Routing Time x
3.5.1. Identifying Routing Congestion with the Chip Planner
3.5.1. Identifying Routing Congestion with the Chip Planner x
3.5.1.1. Areas with Routing Congestion 3.5.1.2. Congestion due to HDL Coding style
1. Answers to Top FAQs
2. Design Compilation
3. Reducing Compilation Time
4. Intel® Quartus® Prime Pro Edition User Guide Design Compilation Archives
A. Intel® Quartus® Prime Pro Edition User Guides

2.5.1.4. Bundled Instances

To improve schematic readability, the RTL Analyzer bundles single-bit instances into a collection known as a bundled instance and hides unconnected pins of instances by default.

Bundled instances appear stacked, and the indexes of the bits appear in the instance name as left and right indexes. You can expand bundled instances to view single-bit instance members in the hierarchy browser. You can view more information about a bundled instance, such as the number of instances, left and right index, and instance members from the Property viewer.

In the following figure, count_int[31:0] is a bundled instance, where 31 is the left index and 0 is the right index. Under the Objects pane (hierarchy browser), count_int[0], count_int[10], count_int[11], and so on are single-bit instance members.

Figure 28. Bundled Instance

If you want to view individual bits of a bundled instance within the schematic viewer, select the pin bus, right-click to display the context-sensitive menu, and click Display Individual Bits. The Connectivity Details dialog displays connectivity details of the single-bit instances.

Figure 29. Connectivity Details of Single-bit Instances

Within the Connectivity Details dialog box, you can select the first individual instance, right-click to display the context-sensitive menu, and select View in Schematic. The first object in the hierarchy gets highlighted automatically.

Figure 30. View Connectivity Details in the Schematic Viewer

Viewing Unbundled Instances

To view unbundled instances, launch your design in the schematic viewer and use one of the following options:

  • Select New Tab with Unbundle Instance from the tab's context-sensitive menu.
    Figure 31. Opening a New Tab with Unbundled Instances
  • Select Unbundle Instance option from the context-sensitive menu.
    Figure 32. Viewing Unbundled Instances

Using either option, you get an unbundled view of the bundled instances in a new tab of the schematic viewer. This mode is helpful when you want to view single-bit instances of a bundled object.

In the following example, when you view the design in the default no interface mode (left), you observe that the instances reduce_xor_3[1:0] and rb[1:0] are bundled. However, within the unbundle instance mode (right), you can view single-bit instances reduce_xor_3, reduce_xor_2, rb[1], and rb[0].

Figure 33. Example of Bundled and Unbundled Instances
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