06-cholesky-accel

Vitis™ Hardware Acceleration Tutorials See Vitis™ Development Environment on xilinx.com

Vitis Hardware Acceleration on Cholesky Algorithm

Version: Vitis 2022.2

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

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

^{Copyright© 2020–2022 Xilinx
XD018}