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GPU all-DCT8 fast path: residual quality gap on uniform high-freq content (-11 zensim on 1e2f9d41)

Status: Open.

#9 In imazen/jxl-gpu;

· lilith opened on May 16, 2026

[wgpu-port] 49 of 87 examples hardcode cubecl::cuda::CudaRuntime — blocks --features 'wgpu encoder' --examples

Status: Open.

#7 In imazen/jxl-gpu;

· lilith opened on May 15, 2026

[wgpu-port] reconstruct.rs:2958 test missing #[cfg(feature = "cuda")] gate — blocks all non-CUDA test builds

Status: Open.

#6 In imazen/jxl-gpu;

· lilith opened on May 15, 2026

[wgpu-port] entropy_coeffs_pixel_3ch_kernel + dequant_dct8_kernel exceed wgpu default storage-buffer budget

Status: Open.

#5 In imazen/jxl-gpu;

· lilith opened on May 15, 2026

[wgpu-port] fused_dct8_3ch_kernel uses 26 storage buffer bindings — exceeds wgpu adapter limits

Status: Open.

#4 In imazen/jxl-gpu;

· lilith opened on May 15, 2026

[wgpu-port] pixel_loss + pixel_loss_3ch use f64 — fails on WebGPU/Metal/most mobile

Status: Open.

#3 In imazen/jxl-gpu;

· lilith opened on May 15, 2026

GPU butteraugli e8/e9 RD gap: EffortProfile mismatch is NOT the cause (Hypothesis B refuted)

Status: Open.

#1 In imazen/jxl-gpu;

· lilith opened on May 14, 2026