Arm backend: Add MobileSAM Ethos-U example - #21397
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Add a MobileSAM prompt segmentation example for Ethos-U85-256. Prepare the pinned official source in an external managed checkout. Apply a small configurable-input patch instead of copying model code. Use int8 globally and A16W8 for TinyViT attention. Lower the complete graph to Ethos-U and compare output with FP32. Emit delegation summaries, validation metrics, and debug artifacts. Build a bare-metal Corstone-320 app using exporter metadata. Validate inference on FVP through the Arm OOTB test. Change-Id: Ib9b5e51aec4f324a642fbfb78316b0f4cd2f670f Signed-off-by: Usamah Zaheer <usamah.zaheer@arm.com>
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/21397
Note: Links to docs will display an error until the docs builds have been completed. ❌ 1 New Failure, 1 Cancelled JobAs of commit b939ea4 with merge base 69014b6 ( NEW FAILURE - The following job has failed:
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Add a MobileSAM prompt segmentation example for Ethos-U85-256.
Prepare the pinned official source in an external managed checkout.
Apply a small configurable-input patch instead of copying model code.
Use int8 globally and A16W8 for TinyViT attention.
Lower the complete graph to Ethos-U and compare output with FP32.
Emit delegation summaries, validation metrics, and debug artifacts.
Build a bare-metal Corstone-320 app using exporter metadata.
Validate inference on FVP through the Arm OOTB test.
cc @digantdesai @freddan80 @per @zingo @oscarandersson8218 @mansnils @Sebastian-Larsson @robell @rascani