[GH-ISSUE #1613] [Bug] Milestone 3 advertises xor problem as solved even with 75% test accuracy #27925

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opened 2026-06-20 11:56:16 -05:00 by GiteaMirror · 1 comment
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Originally created by @AndreaMattiaGaravagno on GitHub (Apr 30, 2026).
Original GitHub issue: https://github.com/harvard-edge/cs249r_book/issues/1613

Area

TinyTorch

Location

Milestone 3

Description

Milestone 3 advertises xor problem as solved even with 75% test accuracy

Expected Behavior

Milestone 3 should tell the user the training did not converge and suggest to re-run the milestone.

Environment (TinyTorch bugs only)

Tiny🔥Torch v0.1.10
Python 3.12.3
/home/andre/tinytorch/.venv

Originally created by @AndreaMattiaGaravagno on GitHub (Apr 30, 2026). Original GitHub issue: https://github.com/harvard-edge/cs249r_book/issues/1613 ### Area TinyTorch ### Location Milestone 3 ### Description Milestone 3 advertises xor problem as solved even with 75% test accuracy ### Expected Behavior Milestone 3 should tell the user the training did not converge and suggest to re-run the milestone. ### Environment (TinyTorch bugs only) Tiny🔥Torch v0.1.10 Python 3.12.3 /home/andre/tinytorch/.venv
GiteaMirror added the javascriptarea: tinytorchtype: bug labels 2026-06-20 11:56:16 -05:00
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@profvjreddi commented on GitHub (Apr 30, 2026):

Fixed in #1618 (merged to dev as f1d5a755f). Added a 0.95 convergence threshold; below that, the script now prints a yellow "Training Did Not Converge" panel telling the student to re-run and warning them not to move on to TinyDigits on a broken result. The " Perfect XOR solution!" message no longer fires at 75%.

<!-- gh-comment-id:4356774003 --> @profvjreddi commented on GitHub (Apr 30, 2026): Fixed in #1618 (merged to dev as f1d5a755f). Added a 0.95 convergence threshold; below that, the script now prints a yellow "Training Did Not Converge" panel telling the student to re-run and warning them not to move on to TinyDigits on a broken result. The "✅ Perfect XOR solution!" message no longer fires at 75%.
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Reference: github-starred/cs249r_book#27925