PROCESSOR-SDK-DRA8X-TDA4X: [TDA4] TIDL test bench output mismatch between PC emulation and hardware (EVM)

Hruday Lankipalli

Part Number: PROCESSOR-SDK-DRA8X-TDA4X

Hi,

We are working on TDA4, with PSDK version "psdk_rtos_auto_j7_07_00_00_11" and tidl version "tidl_j7_01_02_00_11". We have imported a tidl model and ran the inference on tidl test bench in PC emulation mode. We ran the tidl test bench on hardware(EVM) and got the output generated. The output of PC emulation is not matching with the hardware output. We generated the trace level outputs and compared between PC emulation and hardware. The differences are observed form the 81st layer of 130 layers.

What could be the reason for this difference in the outputs?

While running it on hardware(EVM) we observed some warnings,

Warning: StrideWidth 2 Stride Height 2 KernelWidth 3 Kernel Height 3 KBlocks 19
Warning: Nat C will be called

What is the reason for these warnings ?

Regards,
Hruday.

over 5 years ago

0 Anshu Jain over 5 years ago

TI__Guru 56820 points

Hi Hruday,
Can you provide the details of the first layer where you are observing mismatch?

Regarding the warning : it indicates that optimized implementation is not available for this configuration. Can you provide more details about this layers property here?

Regards,

Anshu

0 Hruday Lankipalli over 5 years ago in reply to Anshu Jain

Prodigy 130 points

Hi Anshu,

We will share the details through e-mail and upload the relevant data over FTP.

Regards,

Hruday.

0 Karthik Ramanan over 5 years ago in reply to Hruday Lankipalli

TI__Guru** 113810 points

Anshu,

There are 3 issues that are being tracked as part of this ticket.

Crash issue (resolved with the fix that you provided yesterday).
Output mismatch still needs to be root caused.
KPIT team also wants to understand the warning messages seen - "Warning: StrideWidth 2 Stride Height 2 KernelWidth 3 Kernel Height 3 KBlocks 19
Warning: Nat C will be called". Please comment on this as well.

Regards

Karthik

0 Anshu Jain over 5 years ago in reply to Karthik Ramanan

TI__Guru 56820 points

Hi Karthik,

Issue 2 and 3 are related and MMALIB team is looking into it.

Regards,

Anshu

0 Anshu Jain over 4 years ago in reply to Anshu Jain

TI__Guru 56820 points

Hi Hruday,

We have provided the reason for failure and suggested alternative over email. Let us know if you have any further question, if not can we close this thread?

Regards,

Anshu

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PROCESSOR-SDK-DRA8X-TDA4X: [TDA4] TIDL test bench output mismatch between PC emulation and hardware (EVM)