Raspberry Pi 2 / BCM2836 / Cortex A7 @ 900 MHz ★

EvoBench v3.3 · 24 Livermore kernels · Waverian Evolution benchmark

Version	3.3.0
Date	23:47 22/12/2023
Compiler	cc (Raspbian 12.2.0-14+rpi1) 12.2.0
Logical cores	4
CPU name	Raspberry Pi 2 / BCM2836 / Cortex A7 @ 900 MHz
Comment	Raspberry Pi 2 / 32-bit Debian 12 / No cooling / BCM2836 / 4x Cortex A7(ARMv7) @ 900 MHz / Year 2015
Clockrate	900 MHz
TDP	4.00 W
Normalized	ST/GHz: 151 · MT/Watt: 135

76.0

Overall score

30.2 - Singlecore	121 MP ratio x4.0 Multicore
121 MP ratio x4.0 Quadcore	121 MP ratio x4.0 Workstation

Non optimized	Single core	Multi core	Quad core	Workstation
Maximum	58.5	233	233	233
Average	32.8	131	131	131
Geometric (= official score)	30.2	121	121	121
Harmonic	28.0	112	112	112
Minimum	16.3	65.1	65.1	65.2

#	Kernel name
1.	Hydro fragment	45.3	180	180	181
2.	ICCG excerpt (Incomplete Cholesky Conjugate Gradient)	34.9	139	139	140
3.	Inner product	31.9	127	127	127
4.	Banded linear equations	34.0	136	136	136
5.	Tri-diagonal elimination, below diagonal	29.3	117	117	117
6.	General linear recurrence equations	22.7	91.3	91.3	91.3
7.	Equation of state fragment	58.5	233	233	233
8.	ADI integration	35.0	140	140	139
9.	Integrate predictors	45.1	180	180	181
10.	Difference predictors	19.4	77.4	77.4	77.5
11.	First sum	19.3	77.2	77.2	77.3
12.	First difference	19.4	77.6	77.6	77.7
13.	2-D PIC (Particle In Cell)	16.3	65.1	65.1	65.2
14.	1-D PIC (Particle In Cell)	17.5	69.4	69.4	69.5
15.	Casual Fortran. Development version	38.1	152	152	152
16.	Monte Carlo search loop	29.4	117	117	117
17.	Implicit, conditional computation	56.2	224	224	224
18.	2-D explicit hydrodynamics fragment	26.1	104	104	104
19.	General linear recurrence equations	30.1	120	120	120
20.	Discrete ordinates transport, conditional recurrence on xx	58.2	232	232	232
21.	Matrix*matrix product	16.6	66.4	66.4	66.4
22.	Planckian distribution	52.7	210	210	210
23.	2-D implicit hydrodynamics fragment	28.2	112	112	112
24.	Find location of first minimum in array	21.9	87.3	87.3	87.3

340

Optimized ratio x4.5

Optimized score

136 - Singlecore	539 MP ratio x4.0 Multicore
539 MP ratio x4.0 Quadcore	540 MP ratio x4.0 Workstation

Optimized	Single core	Multi core	Quad core	Workstation
Maximum	229	911	911	914
Average	144	571	571	572
Geometric (= official score)	136	539	539	540
Harmonic	127	504	504	505
Minimum	59.4	237	237	238

#	Kernel name
1.	Hydro fragment	163	650	650	655
2.	ICCG excerpt (Incomplete Cholesky Conjugate Gradient)	132	526	526	526
3.	Inner product	216	867	867	867
4.	Banded linear equations	183	729	729	729
5.	Tri-diagonal elimination, below diagonal	134	538	538	542
6.	General linear recurrence equations	91.2	359	359	354
7.	Equation of state fragment	229	911	911	914
8.	ADI integration	201	792	792	794
9.	Integrate predictors	207	824	824	824
10.	Difference predictors	169	640	640	644
11.	First sum	144	576	576	576
12.	First difference	129	516	516	516
13.	2-D PIC (Particle In Cell)	59.4	237	237	238
14.	1-D PIC (Particle In Cell)	78.2	303	303	307
15.	Casual Fortran. Development version	127	508	508	508
16.	Monte Carlo search loop	109	435	435	435
17.	Implicit, conditional computation	195	778	778	778
18.	2-D explicit hydrodynamics fragment	147	583	583	585
19.	General linear recurrence equations	154	616	616	609
20.	Discrete ordinates transport, conditional recurrence on xx	132	525	525	523
21.	Matrix*matrix product	124	494	494	494
22.	Planckian distribution	68.7	274	274	274
23.	2-D implicit hydrodynamics fragment	167	654	654	662
24.	Find location of first minimum in array	93.4	373	373	374