Other Parts Discussed in Thread: TDA2, 66AK2H12,
Hi TI Experts,
1. We have some ADAS customers asking about the computing power of TDA2 series SoCs. I cannot find an official document listing the computing power of TDA2x in GFLOPS/ TFLOPS from TI, Where can we find or how to calculate that number?
The ADAS application requires the use of deep learning algorithms, in comparison, we get to know that Mobile Eye says that the EyeQ3 delivers ~300 GFLOPS, while EyeQ4 push that number to 2.5 TFLOPS.
On TI DSP overview page http://www.ti.com/processors/dsp/overview.html, I find this information, saying that the TI C66x DSP core delivers 32 GMACs and 16 GFLOPS per core at 1 GHz.
And, I find the efficiency of ARM Cortex-A15 is around 6.9FLOPS/GHz/Core (https://devtalk.nvidia.com/default/topic/813318/jetson-tk1/flops-for-jetson-host/ ),
So, I did the math for 66AK2H12(4* ARM Cortex-A15@1.4GHz，8* C66x @1.2GHz), the total computing power should be around 4*1.4 GHz * 6.9 GFLOPS/GHz + 8*1.2 GHz * 16 GFLOPS/GHz = 38GFLOPS + 153.6GFLOPS = 191.6 GFLOPS, which is quite close to the 200GFLOPS on the TI DSP overview page.
In the very same way, we can calculate the GFLOPS of TDA2SX(2* ARM Cortex-A15@1.176GHz，2* C66x @0.75GHz ) it's 2*1.176 GHz*6.9 GFLOPS/GHz + 2*0.75 GHz*16 GFLOPS/GHz = 16+24 =40 GFLOPS
In the meanwhile, I found a video from youtube (www.youtube.com/watch saying that the computing power of TDA2 is 266 Giga DLOPs
2. Can you explain what DLOPs(I'm guessing "Deep Learning Operations" ) means? what its relationship with FLOPS?
3. Since the EyeQx uses MIPS CPUs, which has a comparable efficiency to ARM Cortex-A CPU, I doubt that a 3 Watt Soc will deliver 300 GFLOPS or even 2.5 TFLOPS, while TI TDA2x only delivers 40 GFLOPS...
So, Is that in deep learning field, people define FLOPS differently? I found people discussing that in deep learning algorithms, only half-precision floating point operation is needed, but regularly, when people talk about FLOPS, they mean single-precision floating point(see https://teslamotorsclub.com/tmc/threads/ap2-0-cameras-capabilities-and-limitations.86430/page-20 #396).
