Exploring Online Synthesis for CGRAs with Specialized Operator Sets

Table 8

Effects of dual ported memory access on an 8 operator array with 3 multiplication operators and 1 division operator.

(a) Round key generation
Benchmark	Clock ticks	Speedup
Rijndael	4480	3.96
Twofish	35264	14.90
RC6	3580	17.24
Sepent	6234	7.10
(b) Single block encryption
Benchmark	Clock ticks	Speedup
Rijndael	5981	3.58
Twofish	8413	1.53
RC6	2828	6.14
Sepent	3224	10.81
(c) Hashes & digests
Benchmark	Clock ticks	Speedup
SHA-1	4561	5.25
SHA-256	3601	13.18
MD5	1485	8.07
(d) Image processing
Benchmark	Clock ticks	Speedup
Sobel filter	2246	9.41
Contrast filter	112	5.43
Grayscale filter	75	3.15
(e) JPEG encoding
Benchmark	Clock ticks	Speedup
JPEG–Encoder	4653315	3.73
Color Sp. Trans.	292889	11.73
2-D DCT	2563	8.99
Quantization	1816	4.10