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PT2E quantization silently does nothing when the model's forward is under torch.no_grad()

Status: Open.

#22069 In pytorch/executorch;

· john-rocky opened on Aug 24, 2026

_convert_scalars_to_attrs writes every lifted scalar as float32, retyping integer subgraphs and breaking prepare_pt2e

Status: Open.

#22062 In pytorch/executorch;

· john-rocky opened on Aug 23, 2026

QNN-delegated static-cache decoder produces correct output via native C++ Module, but degenerate/repeating output via Android JNI Module (same .pte, same device)

Status: Open.

#22061 In pytorch/executorch;

· aramvyan opened on Aug 23, 2026

qwen3_5 example config leaves use_sdpa_with_kv_cache off, which costs 2x decode

Status: Open.

#22045 In pytorch/executorch;

· john-rocky opened on Aug 22, 2026

8da4w silently skips layers that do not divide the group size, and 8da8w is implemented but rejected by config validation

Status: Open.

#22044 In pytorch/executorch;

· john-rocky opened on Aug 22, 2026

no_rope_layer_interval is declared but never applied, and SmolLM3's own config sets it

Status: Open.

#22043 In pytorch/executorch;

· john-rocky opened on Aug 22, 2026

MLX backend: missing aten.native_group_norm and upsample_nearest2d fragment a diffusion UNet into 28 subgraphs

Status: Open.

#22017 In pytorch/executorch;

· msluszniak opened on Aug 21, 2026

MLX iOS: whisper-small bf16 uses ~6.7x its file size in RSS and is jetsam-killed, while every sibling stays under 2x

Status: Open.

#22016 In pytorch/executorch;

· msluszniak opened on Aug 21, 2026

[CoreML] Build failure on Ubuntu 26.04 LTS (ExecuTorch 1.4.1, GCC 15.2.0): missing <cstdint> in memory_buffer.hpp

Status: Open.

#22013 In pytorch/executorch;

· emr3ayas opened on Aug 21, 2026

SDPA decomposition does not preserve intermediate dtype for fp16/bf16 inputs

Status: Open.

#22012 In pytorch/executorch;

· oscarandersson8218 opened on Aug 21, 2026

CoreML delegate emits unloadable multi-method program (0x23 InvalidProgram); MLX and XNNPACK load the same graphs fine

Status: Open.

#21951 In pytorch/executorch;

· msluszniak opened on Aug 19, 2026

aten._fft_r2c has no portable kernel: program builds but fails to load with 0x14 OperatorMissing

Status: Open.

#21950 In pytorch/executorch;

· msluszniak opened on Aug 19, 2026