Files
LocalAI/backend/cpp/bonsai/apply-patches.sh
LocalAI [bot] bbe018c1a0 feat(bonsai): PrismML llama.cpp fork backend + Bonsai/Ternary-Bonsai gallery models (#10834)
feat(bonsai): add PrismML llama.cpp fork backend + Bonsai gallery models

Adds a new `bonsai` backend that runs the PrismML fork of llama.cpp
(github.com/PrismML-Eng/llama.cpp, `prism` branch), which ships the Q1_0
(1-bit) and Q2_0 (ternary / 1.58-bit) weight-quantization kernels used by the
Bonsai and Ternary-Bonsai models. Stock llama.cpp cannot decode these quants.

Modeled on the turboquant backend: reuses backend/cpp/llama-cpp/grpc-server.cpp
against the fork's libllama via a thin wrapper Makefile, so the sub-2-bit models
are served with the same OpenAI-compatible API. No grpc-server allow-list patch
is needed (bonsai adds weight quants, transparent to the server, not KV-cache
types), and the reused server compiles cleanly against the fork with no skew
patches (validated locally via a CPU docker build; patches/ is present but empty
for any future re-pin skew).

Backend wiring: backend/cpp/bonsai/, .docker/bonsai-compile.sh,
backend/Dockerfile.bonsai, top-level Makefile targets, backend-matrix.yml build
rows (CPU, CUDA 12/13, L4T, SYCL f32/f16, Vulkan, ROCm/hipblas), backend/index.yaml
meta-backend + per-platform images, and a nightly bump_deps entry tracking the
`prism` branch.

Gallery: 8 entries across 4 families - bonsai-8b-1bit, ternary-bonsai-8b (+g64,
+pq2), bonsai-27b-1bit (vision), ternary-bonsai-27b (+pq2, +g64, vision). The 27B
models wire the mmproj vision tower; the DSpark speculative drafter GGUFs are not
wired (custom semi-autoregressive drafter, not a standard llama.cpp draft model).


Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-16 10:09:14 +02:00

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#!/bin/bash
# Apply the bonsai patch series to a cloned PrismML llama.cpp (prism branch) checkout.
#
# The prism fork branched from upstream llama.cpp before a number of API changes that the
# shared backend/cpp/llama-cpp/grpc-server.cpp depends on. We carry those upstream commits
# as patch files under backend/cpp/bonsai/patches/ and apply them here so the reused
# grpc-server source compiles against the fork unmodified.
#
# Drop the corresponding patch from patches/ whenever the fork catches up with upstream —
# the build will fail fast if a patch stops applying, which is the signal to retire it.
set -euo pipefail
if [[ $# -ne 2 ]]; then
echo "usage: $0 <llama.cpp-src-dir> <patches-dir>" >&2
exit 2
fi
SRC_DIR=$1
PATCHES_DIR=$2
if [[ ! -d "$SRC_DIR" ]]; then
echo "source dir does not exist: $SRC_DIR" >&2
exit 2
fi
if [[ ! -d "$PATCHES_DIR" ]]; then
echo "no patches dir at $PATCHES_DIR, nothing to apply"
exit 0
fi
shopt -s nullglob
patches=("$PATCHES_DIR"/*.patch)
shopt -u nullglob
if [[ ${#patches[@]} -eq 0 ]]; then
echo "no .patch files in $PATCHES_DIR, nothing to apply"
exit 0
fi
cd "$SRC_DIR"
for patch in "${patches[@]}"; do
echo "==> applying $patch"
git apply --verbose "$patch"
done
echo "all bonsai patches applied successfully"