sample_embedding_folder2/0799121.txt

Ticket Name: RTOS: Which core manages IPC in TIDL?

Query Text:
Tool/software: TI-RTOS Hi, I'm analyzing TIDL usecase and i have 3 questions. Q1) I did read some documents for understanding IPC. As i understand, each core has message box and messages from other cores are received by that. (Is this right?) If i understand correctly, is there any main core for IPC? (I mean the core which handle the messages from each core) Q2) Does IPC1_0 executes Chains_main function? In that case, the main core of TIDL usecase is IPC1_0, is this right? Q3) In converting caffe model to TIDL by using TIDL importing tool, i saw 'LayersGroupID' parameter. Is that value existing for giving each layers of DL model to DSP/EVE? If so, where can I find the source code that provides each layer of the DL model on each core? Thanks in advance. Regards, Yoo.

Responses:
Hi Yoo, VisionSDK experts will answer Q1 and Q2 soon. For Q3 please check FAQ #21 in PROCESSOR_SDK_VISION_03_06_00_00\ti_components\algorithms\REL.TIDL.01.01.03.00\modules\ti_dl\docs\TIDeepLearningLibrary_UserGuide.pdf Regards, Yordan

Hi, Please find your answer below Q1> All cores has its message box for IPC. There is no main core for this each core can communicate with any core independently. Q2> I hope you mean IPU1_0 Yes IPU1_0 is master core when we run VSDK bios. So this core runs all usecase. Regards, Anuj

LayersGroupID is set via import config file. refer TIDL users guide for more information

Thank you, I understand the way to allocate each layers into DSP/EVE core. Then, the diagram below, which shows the data flow of the TIDL OD usecase, shows only the flow of the frame. And each layer operation actually is executed by DSP or EVE according to the layer groupid? or In the diagram below, first Alg_tidl_Eve executes computation of specific layers that are allocated to EVE and Alg_tidl_Dsp executes computation of other layers?

Yes, it shows only the flow of the frame. And each layer operation actually is executed by DSP or EVE according to the layer groupid