Profiling - 2023.1 English

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

Table 108 Table 1 Hardware resources for PageRank with a small cache (cache size 512bits)
Kernel	BRAM	URAM	DSP	FF	LUT	Frequency(MHz)
kernel_pagerank_0	216	0	42	123998	88372	300

Table 109 Table 2 Hardware resources for PageRank with cache (maximum supported cache size 32K in one SLR of Alveo U50)
Kernel	BRAM	URAM	DSP	FF	LUT	Frequency(MHz)
kernel_pagerank_0	216	224	42	124054	95950	225

With the increase of cache depth, the acceleration ratio increases obviously, but due to the use of a lot of URAM, the frequency will drop. So the adviced cache depth is 32K for 1SLR of Alveo U50.

Table 110 Table 3 Comparison between CPU SPARK and FPGA VITIS_GRAPH
datasets	Vertex	Edges	FPGA time cache 1	FPGA time cache 32K	Spark (4 threads)			Spark (8 threads)			Spark (16 threads)			Spark (32 threads)
datasets	Vertex	Edges	FPGA time cache 1	FPGA time cache 32K	Spark time	speedup Cache 1	speedup Cache 32K	Spark time	speedup Cache 1	speedup Cache 32K	Spark time	speedup Cache 1	speedup Cache 32K	Spark time	speedup Cache 1	speedup Cache 32K
as-Skitter	1694616	11094209	8.723	3.786	25.431	2.915	6.717	23.064	2.644	6.092	25.163	2.885	6.646	48.137	5.518	12.714
coPapersDBLP	540486	15245729	6.523	4.217	29.366	4.502	6.964	23.56	3.612	5.587	27.756	4.255	6.582	58.432	8.958	13.856
coPapersCiteseer	434102	16036720	5.571	4.166	24.161	4.337	5.800	21.274	3.819	5.107	24.545	4.406	5.892	55.312	9.929	13.277
cit-Patents	3774768	16518948	14.124	12.358	41.103	2.910	3.326	33.61	2.380	2.720	30.238	2.141	2.447	40.201	2.846	3.253
europe_osm	50912018	54054660	47.376	51.919	1197.746	25.282	23.070	668.923	14.119	12.884	423.886	8.947	8.164
hollywood	1139905	57515616	66.782	19.999	98.685	1.478	4.934	77.557	1.161	3.878	78.66	1.178	3.933	146.719	2.197	7.336
soc-LiveJournal1	4847571	68993773	142.526	79.792	403.137	2.829	5.052	288.605	2.025	3.617	281.886	1.978	3.533	272.344	1.911	3.413
ljournal-2008	5363260	79023142	166.998	66.814	447.311	2.679	6.695	258.133	1.546	3.864	208.849	1.251	3.126	281.81	1.688	4.218
GEOMEAN			27.604	16.121	105.891	3.837X	6.571X	78.899	2.858X	4.896X	75.152	2.723X	4.663X	95.115	3.772X	6.976X

Note

Spark time is the execution time of funciton “pageRank.runUntilConvergence”.
Spark running on platform with Intel(R) Xeon(R) CPU E5-2690 v4 @2.600GHz, 56 Threads (2 Sockets, 14 Core(s) per socket, 2 Thread(s) per core).
time unit: second.
“-” Indicates that the result could not be obtained due to insufficient memory.
FPGA time is the kernel runtime by adding data transfer and executed with pagerank_cache
Collected on Alveo u50 platform