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Issue Deploying Custom iResNet101_Ada Model on AM69A with TIDL #101

Description

@daoan1412

Dear Texas Instruments Support Team,

I am currently working on deploying a custom iresnet101_ada model using TensorFlow Lite on the AM69A platform with TIDL. I successfully ran the provided inference example with a pre-compiled model, but when using my own model, I encountered issues.

Issue Summary:
The compiled artifacts from my custom iresnet101_ada model contain two subgraphs and do not generate the allowedNode.txt file.

When running inference using test_tflite.py, I receive the following error messages:

VX_ZONE_ERROR: [ownNodeKernelInit:604] Target kernel, TIVX_CMD_NODE_CREATE failed for node TIDLNode VX_ZONE_ERROR: [ownNodeKernelInit:606] If the target callbacks have been registered, please ensure no errors are occurring within the create callback of this kernel VX_ZONE_ERROR: [ownGraphNodeKernelInit:690] kernel init for node 0, kernel com.ti.tidl:1:1 ... failed !!! VX_ZONE_ERROR: [ TIDL subgraph Identity ] Graph verify failed TIDL_RT_OVX: ERROR: Verify OpenVX graph failed

The system logs indicate that 354 nodes were delegated out of 354, suggesting that the model was fully offloaded to TIDL.

Questions:
Subgraph Issue: Why does my model generate two subgraphs instead of one? Is there a way to force a single subgraph in TIDL compilation?
Missing allowedNode.txt: The compilation process does not generate allowedNode.txt. Could this indicate an issue with model partitioning or unsupported layers?
Graph Initialization Failure: The log mentions TIVX_CMD_NODE_CREATE failed for node TIDLNode. How can I debug this further? Are there specific TIDL settings required for models like iresnet101_ada?
Recommended Debugging Steps: What steps should I follow to properly validate and debug the TIDL compilation and inference pipeline for this model?
Additional Information:
I used the standard TIDL compilation flow for TensorFlow Lite.
The original model is a modified iResNet101 architecture trained for 112x112 input images.
I appreciate any guidance you can provide on resolving these issues.

https://drive.google.com/drive/folders/1RbLP0S111TqJnQqHP-yXaxzGmlW1D7ef?usp=drive_link

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