OpenVX TIDL Object Detection is slow

Luke Lin

Part Number: TDA2SX

Tool/software: Linux

Dear Champs,

I've been able to run OpenVX TIDL Object Detection (OD) in my end (VSDK v3.7 on TDA2x EVM). Please refer below link for my steps.

However, I'm seeing two issues while running this use case

1. The performance of OpenVX TIDL OD is quite poor:

In Linux, the FPS can only reach 5. As comparison, I ran TIDL OD use case in TI-RTOS, the FPS can reach 20. I compared the performance statistics, looked like 4 EVEs are used in TI-RTOS but only one EVE is used in Linux. I attached the log below FYR.

TIDL_OD_RTOS.log

TIDL_OC_then_OD_Linux.log

2. Must run OpenVX TIDL Object Classification (OC) first then run OD:

OC must run prior to OD. If I ran OD directly, sometimes it did not launch and I got the error mentioned in below post

Most of the times OD launched, but the result was abnormal. I saw only a big rectangle blinking around the video (picture below)

Log below FYR.

TIDL_OD_Linux_fail.log

Please help investigate the issues.

Thanks.

over 6 years ago

0 Anuj Gupta over 6 years ago

TI__Genius 15985 points

HI,

OD usecase in linux uses only 1 EVE where as in TI-RTOS uses 4 EVEs.

So you will get only 5 FPS for TIDL OD usecase in linux.

That is expected behaviour.

Regards,

Anuj

0 Luke Lin over 6 years ago in reply to Anuj Gupta

TI__Expert 3250 points

Anuj,

The performance of one EVE can not meet customer's requirement. Is it possible to enable 4 EVEs in Linux? If yes, how?

Also please help investigate why running OC before OD is required to make OD work properly.

Thanks.

0 Anuj Gupta over 6 years ago in reply to Luke Lin

TI__Genius 15985 points

Hi,

Using openVX you can not use 4 EVEs.

You might need to port bios OD usecase to linux.

But from TI the same has not been tested or supported.

You can run OD without running OC.

Can you share your failure logs .

Regards,

Anuj

0 Luke Lin over 6 years ago in reply to Anuj Gupta

TI__Expert 3250 points

Anuj,

Below is the failure log

TIDL_OD_Linux_fail.log

The following is the success log

TIDL_OC_then_OD_Linux.log

0 Anuj Gupta over 6 years ago in reply to Luke Lin

TI__Genius 15985 points

Hi,

In the failure log, i can not see any failure message.

can you press p after 1 min of usecase running and share the complete log.

Regards,

Anuj

0 Luke Lin over 6 years ago in reply to Anuj Gupta

TI__Expert 3250 points

Anuj,

Attached please see my logs. There are one successful case and two failed cases inside.

failed1.zip

failed2.zip

ok.zip

0 Anuj Gupta over 6 years ago in reply to Luke Lin

TI__Genius 15985 points

HI,

It seems like IPU2 is trying to read some wrong address.

Are you using freshly installed SDK 3.7 on tda2x evm?

can you share your changes you have done to build.

Regards,

Anuj

0 Luke Lin over 6 years ago in reply to Anuj Gupta

TI__Expert 3250 points

Anuj

I only made the following changes

[Build Applicaion]

Processor SDK Vision v3.7

/vision_sdk/build/Rules.make

MAKECONFIG?=tda2xx_evm_linux_all

/vision_sdk/apps/configs/tda2xx_evm_linux_all/cfg.mk

OPENVX_INCLUDE=yes

It's suggested by Yordan (post below).

https://e2e.ti.com/support/tools/ccs/f/81/t/816400

Some customer followed Yordan's instruction but still could not run OD (post below). I found a trick (run OC then run OD) so I replied with my detail steps. As you can check in below post, not only customer and me but another TI FAE saw the same symptom.

https://e2e.ti.com/support/tools/ccs/f/81/p/817615/3026853

0 Anuj Gupta over 6 years ago in reply to Luke Lin

TI__Genius 15985 points

Hi,

We tried to reproduce this issue at our end but it was working fine.

You need to step through the code and pin point the location in VSDK code which is causing this assert.

As we are not able to reproduce this this issue at our end it will be difficult for us resolve this at our end and give you final solution.

Regards,

Anuj

0 Anuj Gupta over 6 years ago in reply to Anuj Gupta

TI__Genius 15985 points

Hi,

Its been long since any update on this thread.

I hope the issue is resolved.

If not then please reply below or create a new thread for a different issue.

Regards,

Anuj

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OpenVX TIDL Object Detection is slow