CCFSys Custom Computing Challenge 2023: Finals

Participating School: East China Normal University (飞天小女警队)

Team Members: Zhuoyan Bai （白卓岩）, Yixuan Du（堵仪萱）, Longshan Xu（徐珑珊）

Advisor: Dr. Fei Xu

Result: Our Team was awarded the first prize in CCFSys Customized Computing Challenge (CCC) 2023.

Project Overview

This branch represents the final round design submission. Based on the preliminary design, optimizations were made for 1K, 4K, and 8K-point AIE designs, as well as the connection between 8K-point PL and AIE.

The objective of this project is the FFT challenge. The overall progress from the preliminary round to the final round is as follows:

• Accomplished the AIE design, optimization, and simulation of small-scale FFT algorithms for 1024-point cint16 and cfloat types;
• Explored the connection between AIE kernels, extended to larger point numbers (4k, 8k) of cint16 type FFT;
• Established the data connection between PL and AIE, which can be invoked from the host side and runs on VCK5000 hardware.

Code Execution

The code for the final round is in the project directory under the submitted fft_8k_advanced project, allowing for AIE simulation and hardware execution.

1. AIE Simulation

Execute the following code to run AIE simulation individually.

Note: Before running make, ensure the XPFM path in the Makefile.

# Compile and execute AIE simulation
cd ./CCC2023/project/fft_8k_advanced/aie
make
make aieemu

2. Hardware Execution

The sources/fft_8k/execution folder contains the necessary fft.xclbin file, host.exe file, and input file DataInFFTO.txt for invoking PL and AIE through the host, as well as the output file DataOutFFT0.txt produced after running. To run on VCK5000, execute the following code.

# Clone the hacc_demo repository
git clone https://github.com/Xtra-Computing/hacc_demo.git

# Acquire VCK5000 compute node (modify the command based on the hacc_demo storage path)
./hacc_demo/env/vck5000_alloc 3
source ./hacc_demo/env/vck5000_env

# Run the executable in the execution folder of this project
./CCC2023/project/fft_8k_advanced/execution/host.exe

# Exit the node
./hacc_demo/env/vck5000_exit

After execution, the .ipynb file in the sources/fft_8k_advanced/notebook folder can be used to visualize the output results and verify them.

Directory Description

The main directory structure for the final submission is as follows:

CCC2023
├── project
│   ├── fft_8k_advanced      Complete code for 8K-point FFT
│   │   ├── aie              AIE Design
│   │   ├── execution        Executable files
│   │   ├── host             Host-side code
│   │   ├── hw_link          Hardware linkage
│   │   ├── pl               PL Design
│   │   └── Makefile
│   │
│   └── fft_4k_basic         4K-point FFT AIE code
│
├── notebook
│   └── fft_8k.ipynb
└── README.md

Design Document

Zhuoyan Bai, Yixuan Du, Longshan Xu, Fei Xu, "基于AIE的快速傅里叶变换的算法优化与实现," in: CCFSys CCC 2023. Nanchang, China, August 4-5, 2023. [PPT]