Vitis™ Application Acceleration Development Flow Tutorials

Vitis Hardware Acceleration on Cholesky Algorithm¶

Version: Vitis 2021.2

This tutorial is divided in 3 sections.

Section 1 (~10 mins):
- An overview of Vitis and the host/kernel paradigm
  - See how Vitis takes care of the heavy lifting to let you focus on the application code
Section 2 (a couple of minutes if Alveo U50 card is already installed):
- Setup the Vitis development tools
- Detect and check the card installed on the server
Section 3 (a few hours):
- Understand the Cholesky algorithm and run it on the CPU first
- Re-organize the code to create both a host and a kernel program
- Review the APIs that bind the host and the kernel
- Apply incremental optimizations to the kernel across several modules to improve throughput. Finally program the Alveo card with the fully optimized accelerator to verify the performance
- Introduction
  - Meet the Cholesky algorithm!
  - Run a CPU version
- Vitis Module 1
  - Get a performance baseline as a reference point with a first kernel design
  - Run Vitis in GUI mode or via make
  - Run Vitis Analyzer to visualize the application timeline
  - Run Vitis HLS to study kernel code performance and resource metrics
- Vitis Module 2 (short module to focus on the impact of PIPELINE and INTERFACE)
  - Understanding instruction parallelism with the HLS PIPELINE pragma
  - Applying the INTERFACE pragma to manage physical ports adapters
- Vitis Module 3
  - Modify design to use the more hardware efficient C++ float data types (compared to double)
  - Run Vitis, Vitis Analyzer and Vitis HLS
- Vitis Module 4
  - Apply the DATAFLOW task parallelism optimization pragma
  - Run Vitis, Vitis Analyzer and Vitis HLS (including viewing specific dataflow waveforms)
  - Run on the U50 card

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0

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