[QNN EP] Add cross-device prepare/run/compare subcommands to encryption_test.py - #883
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…on_test.py The one-shot mode requires prepare_app and run_app on the same machine, which cannot work for the UC2 scenario (compile on an x86_64 host with no NPU, run on a separate ARM64 device with real HTP hardware) — the two executables never coexist on one box in that setup. Add "prepare", "run", and "compare" subcommands so each phase can run independently on its own machine, with intermediate files (enc_ctx.onnx, enc_cipher.bin, answer_prepare.raw, answer_run.raw) copied between them manually (e.g. via scp). The original one-shot behavior is preserved under a new "both" subcommand for same-machine use.
tzuhsuanwei
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qti-chuteng,
qti-kromero and
tirupath-qti
as code owners
September 29, 2026 09:27
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Summary
encryption_test.py's one-shot mode requiresprepare_appandrun_appon the same machine, which cannot work for the UC2 scenario (compile on an x86_64 host with no NPU, run on a separate ARM64 device with real HTP hardware) — the two executables never coexist on one box in that setup.prepare,run, andcomparesubcommands so each phase can run independently on its own machine, with intermediate files (enc_ctx.onnx,enc_cipher.bin,answer_prepare.raw,answer_run.raw) copied between machines manually (e.g. viascp).bothsubcommand for same-machine use — no behavior change for existing callers other than needing to addbothas the first argument.qcom/samples/ep_context_encryption/encryption_test.pyis touched; no other files changed.Test plan
bothsubcommand reproduces the original round-trip result on a real V81 ARM64 device (PASS: 1000 value(s) within 0.001 (max |diff| = 0.0))prepare→run→comparesplit produces the identical PASS result when run as three separate invocationspython -m py_compileclean