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llama.cpp b10905 tunes Flash Attention for AMD RDNA4 and revises stream-k logic

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The llama.cpp project released build b10905, which includes specific tuning of Flash Attention for CUDA/HIP on the gfx1201 architecture. This update focuses on optimizing performance for AMD RDNA4 GPUs.

HIP: Enables matrix multiply-accelerated (mma) Flash Attention for head size 256 on RDNA4 and tunes associated configurations.
HIP: Prefers whole-tile Flash Attention grids over stream-k on AMD WMMA architectures.
Revised the stream_k logic to improve execution flow.
Revised kernel selection logic for better hardware targeting.

The release provides binaries for macOS, Linux, Windows, Android, and openEuler across various backends including CPU, CUDA, ROCm, Vulkan, OpenVINO, SYCL, and OpenCL.

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github llama.cpp · 1d ago · 5 views

llama.cpp b10888 adds Vulkan command-buffer debug labels for GPU profilers

The llama.cpp project has released build b10888, which includes a new feature to add command-buffer debug labels for GPU profilers in the Vulkan backend.

github llama.cpp · 1d ago · 1 view

llama.cpp b10886 adds Q1_0 vector intrinsic support for s390x

The llama.cpp project released build b10886, which introduces Q1_0 vector intrinsic support for the s390x architecture. This update includes the implementation of `ggml_vec_dot_q1_0_q8_0` and updates documentation to reflect the new capability.

github llama.cpp · 2d ago · 2 views

llama.cpp b10883 fixes Vulkan matrix multiplication and restores Ampere optimizations

The llama.cpp project released build b10883, which includes significant updates to the Vulkan backend. The primary change involves using spec constants for matrix-matrix multiplication A-type operations to improve shader compilation and performance.

github llama.cpp · 2d ago · 5 views

llama.cpp b10870 adds f16 B-type matmul pipelines and warp tile tuning for Intel coopmat1

The llama.cpp project released version b10870, introducing Vulkan support for f16 B-type matrix multiplication pipelines and warp tile size tuning specifically for Intel coopmat1 hardware.

github llama.cpp · 2d ago · 4 views

llama.cpp b10871 adds dedicated iq4_xs mat-vec shader for Vulkan

The llama.cpp project released build b10871, introducing a dedicated mul_mat_vec_iq4_xs shader for the dmmv path in Vulkan. This change replaces the previous generic fallback implementation to improve performance on RDNA4 hardware.