A Heterogeneous System Based on Latent Semantic Analysis Using GPU and Multi-CPU

Table 2

Results of the CPU sequential-only procedures in milliseconds of the semantic space stage in the hLSA system.

Number of documents	Read stopwords; (ms)	Find documents; (ms)	Read documents; (ms)	Build matrix; (ms)
500	27.016	186.764	4.044	41.646
750	27.016	187.885	5.929	61.891
1000	27.016	195.235	7.845	82.295
1250	27.016	196.450	9.752	105.363
1500	27.016	189.951	12.333	121.197
1750	27.016	191.454	13.816	152.200
2000	27.016	198.723	16.475	164.590
2500	27.016	194.696	19.134	208.550
3000	27.016	192.528	23.034	250.311
3500	27.016	191.431	26.621	297.541
4000	27.016	198.942	34.243	339.805
5000	27.016	189.929	37.598	434.999