Compiler: 111

user6424103

Tool/software: TI C/C++ Compiler

hello, in tidl_import tool, there is a confusing problem: for data layer , when calculate channel pitch, example: data_input 2242243, pad_w = 2, pad_h = 2, ti calculate channel_pitch = (224 + 2 *2 + 1) * (224 + 2) = 229 * 226.

the problem is why not calcualte channel_pitch = (224 +2) * (224 + 2) = 226* 226 ?

could you give me some guidance ？

over 5 years ago

0 George Mock over 5 years ago

TI__Guru**** 249900 points

Which TI device do you use?

Thanks and regards,

-George

0 user6424103 over 5 years ago in reply to George Mock

Prodigy 30 points

sorry, the TI device is TDA4 version: tidl_j7_01_00_00_00

0 kumar.desappan over 5 years ago in reply to user6424103

TI__Mastermind 22145 points

Please refer the below doc

https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-jacinto7/latest/exports/docs/tidl_j7_01_02_00_09/ti_dl/docs/user_guide_html/md_tidl_fsg_io_tensors_format.html

0 user6424103 over 5 years ago in reply to kumar.desappan

Prodigy 30 points

hello, the link is describe inPadT / inPadB / inPadL / inPadR , and i don't talk about that, i assume the inPadX are all zero. in the file tidl_import_common.cpp, channel_pitch = (inHeight + 2 * padH + 1) *pitch[TIDL_LINE_PITCH]

as an example: for data layer , when calculate channel pitch, example: data_input 224 * 224 * 3, the next conv layer: pad_w = 2, pad_h = 2, ti calculate data_input layer channel_pitch = (224 + 2 *2 + 1) * (224 + 2) = 229 * 226.

the problem is why not calcualte channel_pitch = (224 +2*2) * (224 + 2*2) = 228* 228 ?

what's it mean: (inHeight + 2 * padH + 1) ?

could you give me some guidance ？

0 kumar.desappan over 5 years ago in reply to user6424103

TI__Mastermind 22145 points

TI's DL network compiler allocates memory needs based on the processing requirements of each layer.

There could some additional pad requirements in few layers based on the consumer or producer layer. the same informed in the below. USer is expected provide buffer based on this

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