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Table 4: Percentage of algorithmic peak performance of VIRAM and Imagine for N =3, M = 1,10,20 and L =1024
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Page | 4/4 | Date | 09.06.2018 | Size | 217.16 Kb. | | #53784 |
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Table 4: Percentage of algorithmic peak performance of VIRAM and Imagine for N =3, M = 1,10,20 and L =1024
Figure 4: Percentage of algorithmic peak performance of Imagine with N =3 and K=1,5,10 using long streams and varying computational intensity
|
VIRAM (N=3)
|
Imagine (N=5)
| Ops/Word |
50
|
90
|
120
|
150
|
100
|
200
|
300
|
400
|
% Peak
|
82%
|
88%
|
89%
|
91%
|
86%
|
89%
|
90%
|
91%
|
Table 5: Achieving high efficiency for VIRAM and Imagine using long streams and high computational intensity
Figure 5: Performance crossover between VIRAM and Imagine for N =3 and M =10
|
VIRAM
|
Imagine
|
Matrix
Rows
(Nonzeros)
|
Performance
|
CRS
|
Segsum
|
Ellpack
|
CRS
|
Streams
|
Ellpack
|
LSHAPE 1008
(6958)
|
% of Peak
|
2.8%
|
7.4%
|
31%
|
1.1%
|
0.8%
|
1.2%
|
Total cycle
|
66823
|
23802
|
5666
|
40300
|
48190
|
37930
|
MFlop/s
|
44
|
118
|
496
|
170
|
142
|
186
|
LARGEDIS
10000
(177820)
|
% of Peak
|
3.2%
|
8.4%
|
32.0%
|
1.5%
|
0.6%
|
6.3%
|
Total cycle
|
802070
|
567491
|
641512
|
742310
|
1840380
|
753540
|
MFlop/s
|
91
|
135
|
511
|
240
|
97
|
1088
|
Table 6: Performance of SPMV on VIRAM and Imagine for the LSHAPE and LARGEDIS matrices using various algorithms
|
VIRAM
|
Imagine
|
Matrix
|
Performance
|
MITRE RT_STAP 192-by-96
complex matrix
|
% of Peak
|
34.1%
|
65.5%
|
Total Cycles
|
5188817
|
712770
|
MFlop/s
|
546
|
13,100
|
Table 7: Performance of QRD on VIRAM and Imagine for the 192-by-96 MITRE RT_STAP matrix
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