rc4

To profile performance of rc4, we prepare a datapack of 24 messages, each message is 2Mbyte. We have 4 kernels, each kernel has 12 PUs. 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/rc4

• 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/rc4Kernel.xclbin -data PROJECT/data/test.dat -num 16

Input Arguments:

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

• Example output(Step 4)

Found Platform
Platform Name: Xilinx
Selected Device xilinx_u250_xdma_201830_2
INFO: Importing build_dir.sw_emu.xilinx_u250_xdma_201830_2/rc4EncryptKernel.xclbin
Loading: 'build_dir.sw_emu.xilinx_u250_xdma_201830_2/rc4EncryptKernel.xclbin'
Kernel has been created.
DDR buffers have been mapped/copy-and-mapped
Kernel has been run for 2 times.
Execution time 475471us

Profiling

The rc4 is validated on Xilinx Alveo U250 board. Its resource, frequency and throughput is shown as below.

Frequency	LUT	REG	BRAM	URAM	DSP	Throughput
147MHz	1,126,259	1,120,505	640	0	216	3.0GB/s