Benchmark - Benchmark - 2025.2 English

1. Performance

Kernel execution time only includes the kernel running in FPGA device time.
API execution time includes the kernel execution time + memory copy between the host and kernel time.

1.1 gemm

This benchmark performs the matrix-matrix multiplication (A * B = C); M is number of rows of matrix A/C, K is number of columns of matrix A/number of rows of matrix B, and N is number of columns of matrix B/C.

gemm with OpenCL in an Alveo U250

M	N	K	Kernel Execution Time [ms]	API Execution Time [ms]	Kernel Eff [%]
64	64	64	0.010905	1.750123	38.802577
128	128	128	0.048517	13.802416	69.772592
256	256	256	0.328314	14.645931	82.485022
512	512	512	3.213388	18.199255	67.420400
1024	1024	1024	24.113855	45.519852	71.875005
2048	2048	2048	186.688153	264.195138	74.270743
4096	4096	4096	1469.773731	1708.938204	75.469945

For more details on this benchmark, see:

L2 GEMM benchmark

gemm with XRT in an Alveo U250

M	N	K	api execution time [ms]	api Eff [%]	PerfApiTops
256	256	256	2.295277	11.798572	0.058818
512	512	512	7.185994	30.148638	0.149859
1024	1024	1024	33.357721	51.957490	0.257887
2048	2048	2048	218.662946	63.410230	0.314501
4096	4096	4096	1594.648667	69.559988	0.344877
8192	8192	8192	12695.637510	69.897233	0.346485

gemm with XRT (one CU, streaming Kernel) in an Alveo U250

M	N	K	api execution time [ms]	api Eff [%]	PerfApiTops
256	256	256	1.370527	19.127241	0.024626
512	512	512	4.517989	46.417820	0.059589
1024	1024	1024	29.500145	56.871639	0.072902
2048	2048	2048	217.555482	61.693563	0.079026
4096	4096	4096	1685.337895	63.710774	0.081580

For more details on the benchmarks, see:

L3 API GEMM benchmark

2. Benchmark Test Overview

Here are benchmarks of the AMD Vitis™ BLAS library using the Vitis environment. It supportshardware emulation as well as running hardware accelerators on the Alveo U250.

2.1 Prerequisites

2.1.1 Vitis BLAS Library

Alveo U250 installed and configured as per https://www.xilinx.com/products/boards-and-kits/alveo/u250.html#gettingStarted (when running hardware)
XRT installed
Vitis 2025.1 installed and configured

2.2 Building

2.2.1 Download Code

These BLAS benchmarks can be downloaded from the [vitis libraries](https://github.com/Xilinx/Vitis_Libraries.git) main branch.

git clone https://github.com/Xilinx/Vitis_Libraries.git
cd Vitis_Libraries
git checkout main
cd blas

2.2.2 Set Up the Environment

Set up and build the environment using the Vitis and XRT scripts:

source <install path>/2025.1/Vitis/settings64.sh
source /opt/xilinx/xrt/setup.sh