PageRank MultiChannels

PageRank MultiChannels example resides in L2/benchmarks/pagerank_multi_channels directory. The tutorial provides a step-by-step guide that covers commands for building and running kernel.

Executable Usage

  • Work Directory(Step 1)

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

cd L2/benchmarks/pagerank_multi_channels
  • 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.

make run TARGET=hw DEVICE=xilinx_u50_gen3x16_xdma_201920_3
  • Run kernel(Step 3)

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

./build_dir.hw.xilinx_u50_gen3x16_xdma_201920_3/host.exe -xclbin build_dir.hw.xilinx_u50_gen3x16_xdma_201920_3/kernel_pagerank_0.xclbin -dataSetDir data/ -refDir data/

PageRank MultiChannels Input Arguments:

Usage: host.exe -[-xclbin -dataSetDir -refDir]
      -xclbin:      the kernel name
      -dataSetDir:  the path point to input directory
      -refDir:      the path point to reference directory

Note: Default arguments are set in Makefile, you can use other Datasets listed in the table.

  • Example output(Step 4)
Found Platform
Platform Name: Xilinx
INFO: Found Device=xilinx_u50_gen3x16_xdma_201920_3
INFO: Importing build_dir.hw.xilinx_u50_gen3x16_xdma_201920_3/kernel_pagerank_0.xclbin
Loading: 'build_dir.hw.xilinx_u50_gen3x16_xdma_201920_3/kernel_pagerank_0.xclbin'
INFO: Kernel has been created
INFO: Finish kernel setup
INFO: Finish event_write
INFO: Finish event_kernel

INFO: Finish kernel execution
INFO: Finish E2E execution
INFO: Data transfer from host to device: 379 us
INFO: Data transfer from device to host: 192 us
INFO: Average kernel execution per run: 174373 us
INFO: Average execution per run: 174944 us

INFO: sum_golden = 4.30706
INFO: sum_pagerank = 4.30706
INFO: Accurate Rate = 1
INFO: Err Geomean = 8.74996e-06
INFO: Result is correct


The hardware resource utilizations are listed in the following table.

Table 1 Hardware resources for PageRankMultiChannels with 2 working channels
Kernel BRAM URAM DSP FF LUT Frequency(MHz)
kernel_pagerank_0 303 224 84 352693 135193 229

Table 2 : Comparison between CPU tigergraph and FPGA VITIS_GRAPH

Table 2 : Comparison between CPU tigergraph and FPGA VITIS_GRAPH


1. Tigergraph time is the execution time of funciton “pageRank” Developer Edition 2.4.1 .
2. Tigergraph running on platform with Intel(R) Xeon(R) CPU E5-2640 v3 @2.600GHz, 32 Threads (16 Core(s)).
3. time unit: second.
4. “-” Indicates that the result could not be obtained due to insufficient memory.
5. FPGA time is the kernel runtime by adding data transfer and executed with pagerank_cache
6. Collected on Alveo u50 platform