What is GFLOPS number of i.MX6 Solo/ Dual / Quad processors ?

取消
显示结果 
显示  仅  | 搜索替代 
您的意思是: 
已解决

What is GFLOPS number of i.MX6 Solo/ Dual / Quad processors ?

跳至解决方案
3,126 次查看
doner_t
Contributor II

Hello,

I need to know GFLOP(Giga Floating Point operations per second ) number of i.MX6 Solo/Dual/ Quad processor. Could you help me ?

Regards,

Tugay

标签 (3)
标记 (1)
1 解答
1,896 次查看
dehuanxin
Contributor III

Depends on what kind of operations you are asking.

The Cortex A9 NEON core can do:

1) 4 single precision multiply/multiply-accumulate in 2 cycles

2) 4 other single precision operation in 1 cycle.

In practice it's not difficult to achieve 25%-30% code efficiency.

For a 1Ghz single core configuration, you can have 1GHz*25%*4 = 1GFLOPS for trivial operations, and 500M multiply-accumulate per second.

To get closer to the peak performance requires a lot of hand optimized NEON code. 25% of the peak is what I usually get from GCC NEON intrinsics.

在原帖中查看解决方案

4 回复数
1,897 次查看
dehuanxin
Contributor III

Depends on what kind of operations you are asking.

The Cortex A9 NEON core can do:

1) 4 single precision multiply/multiply-accumulate in 2 cycles

2) 4 other single precision operation in 1 cycle.

In practice it's not difficult to achieve 25%-30% code efficiency.

For a 1Ghz single core configuration, you can have 1GHz*25%*4 = 1GFLOPS for trivial operations, and 500M multiply-accumulate per second.

To get closer to the peak performance requires a lot of hand optimized NEON code. 25% of the peak is what I usually get from GCC NEON intrinsics.

1,896 次查看
doner_t
Contributor II

Hello,

Thank you very much !

But, now I need to know average power consumption of i.MX6 Solo/Dual/ Quad processor. I read datasheets. But not found a clear info.,

Regards,

Tugay

0 项奖励
回复
1,896 次查看
dehuanxin
Contributor III

i.MX6Q|i.MX 6Quad Processors|Quad Core|NXP

In the application note section you can find the power consumption measurements.

1,896 次查看
gusarambula
NXP TechSupport
NXP TechSupport

Thanks a lot, Dehuan Xin, for the information!

0 项奖励
回复