b10676

ggml : fix conv_transpose_2d for multiple batches (#26132) ggml : fix conv_transpose_2d for multiple batches ggml_compute_forward_conv_transpose_2d_impl only computed the first batch (ne[3] of the destination); every batch after the first was left as zero. Both the src1 permutation and the main compute loop now iterate over the batch dimension, and the work buffer size in ggml_graph_plan is scaled by the src1 batch count so the extra permuted batches fit. A multi-batch test case is added to test-backend-ops. Fixes ggml-org/ggml#1448 metal : fix conv_transpose_2d for multiple batches The kernel only computed batch 0 of the input (src1->ne[3]); every output batch after the first was left as zero, so multi-batch conv_transpose_2d results diverged from the CPU reference. The grid now covers all batches (OW x OH x OC x N), the kernel decodes the batch from the grid z coordinate and offsets both the input and destination indices accordingly. nb3 is passed in the kernel args. Assisted-by: pi:llama.cpp/Qwen3.8-27B Co-authored-by: Georgi Gerganov ggerganov@gmail.com Website: https://llama.app Attestations: https://github.com/ggml-org/llama.cpp/attestations/43724395 macOS/iOS: macOS Apple Silicon (arm64) macOS Apple Silicon (arm64, KleidiAI enabled) DISABLED macOS Intel (x64) iOS XCFramework Linux: Ubuntu x64 (CPU) Ubuntu arm64 (CPU) Ubuntu s390x (CPU) Ubuntu x64 (Vulkan) Ubuntu arm64 (Vulkan) Ubuntu x64 (ROCm 7.14) Ubuntu x64 (OpenVINO) Ubuntu x64 (SYCL FP32) Ubuntu x64 (SYCL FP16) Android: Android arm64 (CPU) Windows: Windows x64 (CPU) Windows arm64 (CPU) Windows arm64 (OpenCL Adreno) Windows x64 (CUDA 12) - CUDA 12.4 DLLs Windows x64 (CUDA 13) - CUDA 13.3 DLLs Windows arm64 (CUDA 13) (preview) - CUDA 13.4 DLLs Windows x64 (Vulkan) Windows x64 (OpenVINO) Windows x64 (SYCL) Windows x64 (ROCm 7.14) openEuler: DISABLED openEuler x86 (310p) openEuler x86 (910b, ACL Graph) openEuler aarch64 (310p) openEuler aarch64 (910b, ACL Graph) UI: UI

Source: llama.cpp Releases | 2026-08-28