b10578

ggml: optimize concat op by replacing per-element memcpy with row-level memcpy (#24575)

• ggml: optimize concat op by replacing per-element memcpy with row-level memcpy

• ggml: fix concat offsets for row-level copies

• ggml: add concat row contiguity asserts

• ggml: move concat block size asserts

• ggml: remove redundant concat asserts

• Update ggml/src/ggml-cpu/ops.cpp

Co-authored-by: Sigbjørn Skjæret sigbjorn.skjaeret@huggingface.co

---

Co-authored-by: Sigbjørn Skjæret sigbjorn.skjaeret@huggingface.co

Website:

• https://llama.app

Attestations:

• https://github.com/ggml-org/llama.cpp/attestations/42306027

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)DISABLED
• 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