CRC32

To profile performance of crc32, we prepare a datapack of 268,435,456 byte messages as kernel input. Base on U50, We have 1 kernel, each kernel has 1 PU. Kernel utilization and throughput is shown in table below.

Executable Usage

• Work Directory(Step 1)

The steps for library download and environment setup can be found in Vitis Security Library. For getting the design,

cd L1/benchmarks/crc32

• Build kernel(Step 2)

Run the following make command to build your XCLBIN and host binary targeting a specific device. Please be noticed that this process will take a long time, maybe couple of hours.

source /opt/xilinx/Vitis/2021.1/settings64.sh
source /opt/xilinx/xrt/setenv.sh
export DEVICE=u50_gen3x16
export TARGET=hw
make run

• Run kernel(Step 3)

To get the benchmark results, please run the following command.

./BUILD_DIR/host.exe -xclbin ./BUILD_DIR/CRC32Kernel.xclbin -data PROJECT/data/test.dat -num 16

Input Arguments:

Usage: host.exe -[-xclbin]
       -xclbin     binary;

• Example output(Step 4)

kernel has been created
kernel start------
kernel end------
Execution time 42.357ms
Write DDR Execution time 1.17767 ms
Kernel Execution time 40.8367 ms
Read DDR Execution time 0.047911 ms
Total Execution time 42.1537 ms

Profiling

The CRC32 is validated on Xilinx Alveo U50 board. Its resource, frequency and throughput is shown as below.

Frequency	LUT	REG	BRAM	URAM	DSP	Throughput
300 MHz	5,322	10,547	16	0	0	4.7 GB/s