Resize¶

Renumber example resides in L2/demos/reszie 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 Codec Library. For getting the design,

cd L2/demos/resize

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_resize.xclbin -i images/t0.raw -srcw 512 -srch 512 -dstw 256 -dsth 256

Renumber Input Arguments:

Usage: host.exe -[-xclbin -i -srcw -srch -dstw -dsth]
      -xclbin:           the kernel name
      -i:                the input bin file
      -srcw:             the source image width
      -srch:             the source image height
      -dstw:             the destination width
      -dsth:             the destination height

Note: Default arguments are set in Makefile, the data have only one column that the node’s community id is divided by other clustering algorithm, for example louvain.

Example output(Step 4)

Read image successfully.
Found Platform
Platform Name: Xilinx
Info: Context created
Info: Command queue created
Found Device=xilinx_u50_gen3x16_xdma_201920_3
INFO: Importing build_dir.sw_emu.xilinx_u50_gen3x16_xdma_201920_3/kernel_resize.xclbin
Loading: 'build_dir.sw_emu.xilinx_u50_gen3x16_xdma_201920_3/kernel_resize.xclbin'
Info: Program created
Info: Kernel created
kernel has been created
INFO: kernel start------
INFO: kernel end------
INFO: Execution time 6334.86ms
Info: Time in host-to-device: 14.9204ms
Info: Time in kernel: 6319.06ms
Info: Time in device-to-host: 0.475648ms
The src image size is 512*512.
The dst image size is 89*27.
Image resized successfully.
PASS: no error found.
Info: Test passed

Profiling¶

The hardware resource utilizations are listed in the following table. Different tool versions may result slightly different resource.

Table 1 : Hardware resources for Resize¶
Kernel	BRAM	URAM	DSP	FF	LUT	Frequency(MHz)
kernel_resize(1x)	14	0	53	8635	6566	397.1
kernel_resize(8x)	29	0	168	20824	15087	340.9

Table 2 : Resize FPGA acceleration benchmark¶
Inputs	Size	FPGA 1x/8x (ms)	Fps 1x / 8x
7680*4320	512*512	84.30 / 12.55	11.86 / 79.67
7680*4320	1920*1080	84.35 / 12.43	11.86 / 80.46
7680*4320	3840*2160	84.34 / 12.43	11.86 / 80.46

Note: This table is the result of each image resize down 8 times.

Note

Resize running on Intel(R) Xeon(R) Silver 4116 CPU @ 2.10GHz, cache(16896 KB), cores(12).
time unit: ms.