AN 899: Reducing Compile Time with Fast Preservation

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ID 683493
Date 11/06/2019
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Document Table of Contents
Document Table of Contents x
1. AN 899: Reducing Compile Time with Fast Preservation
1. AN 899: Reducing Compile Time with Fast Preservation x
1.1. Tutorial Design Overview 1.2. Downloading Tutorial Design Files 1.3. Module 1: Analyze the Non-Partitioned Design 1.4. Module 2: Preserve Timing-Closed Design Partitions 1.5. Module 3: Optimize with Fast Preservation 1.6. AN 899: Reducing Compile Time with Fast Preservation Revision History
1.3. Module 1: Analyze the Non-Partitioned Design x
1.3.1. Step 1: Compile the Flat Design 1.3.2. Step 2: Identify Timing-Critical Design Blocks 1.3.3. Step 3: View Design Assistant Results
1.4. Module 2: Preserve Timing-Closed Design Partitions x
1.4.1. Step 1: Create Design Partitions 1.4.2. Step 2: Floorplan the Design Partitions 1.4.3. Step 3: Preserve the Timing-Closed Root Partition
1.5. Module 3: Optimize with Fast Preservation x
1.5.1. Step 1: Create a Project Revision 1.5.2. Step 2: Enable Fast Preservation 1.5.3. Step 3: Import the Root Partition 1.5.4. Step 4: Optimize the Reserved Core Partitions 1.5.5. Step 5: View Fast Preservation Results
1. AN 899: Reducing Compile Time with Fast Preservation

1.4.1. Step 1: Create Design Partitions

To export and reuse the root partition, first create reserved core partitions for the failing u_blinking_led_i3 and u_blinking_led_i4 blocks that require further optimization.
  1. In the Intel® Quartus® Prime Pro Edition software, click File > Open Project and open the /tutorial_base/top.qpf project file.
  2. Click Processing > Start > Start Analysis & Elaboration.
  3. In the Project Navigator, expand the u_blinking_led_top instance in the Hierarchy tab.
  4. Right-click the u_blinking_led_i3 instance, point to Design Partition, and select the Reserved Core partition Type. A design partition icon appears next to each instance you assign.
    Figure 12. Create Design Partitions
  5. Repeat step 4 to create a partition for the u_blinking_led_i4 instance. You will export the remaining instances as part of the root partition.
  6. If the Design Partitions Window is not already open, click Assignments > Design Partitions Window. The Design Partitions Window lists the partitions you define, along with the root partition (|) the Compiler automatically creates for each project.
    Figure 13. Design Partitions Window
    2
2 You can rearrange columns in Design Partitions Window to match the layout in this tutorial.
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