Sync master with upstream release b8821#488
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jan-service-account merged 13 commits intodevfrom Apr 18, 2026
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…gml-org#21638) * [SYCL] Fix Q8_0 reorder: add missing dequantize path for GEMM The Q8_0 reorder optimization (ggml-org#21527) was missing a reorder-aware dequantizer for the GEMM code path used during prompt processing. After token generation reordered Q8_0 weights (via DMMV/MMVQ), the next prompt processing pass would read them with the standard dequantizer, producing garbage output. Add dequantize_block_q8_0_reorder() and wire it into both ggml_get_to_fp16_sycl() and ggml_get_to_fp32_sycl(), matching the pattern already used by Q4_0, Q4_K, and Q6_K. Fixes ggml-org#21589 AI (Claude) was used to assist with root cause investigation and writing the kernel code. All code was human-reviewed and tested on real hardware. * SYCL: fix reorder crash when device memory is full The reorder optimization allocates a temporary buffer the full size of the weight tensor on the device. When VRAM is nearly full (large models on a single GPU), this allocation fails and the subsequent memcpy crashes on a NULL pointer. Fix: try device allocation first, fall back to host memory if device memory is full. The reorder kernel still works correctly reading from host memory over PCIe. This is slower for the one-time reorder (~21 t/s vs ~38 t/s on Intel Arc Pro B70), but the optimization is preserved for all subsequent inference. If both device and host allocation fail, skip the reorder and fall back to the unoptimized kernel path. Also fixes a bug where opt_for_reorder() marked tensors as reordered even when the reorder was skipped due to allocation failure. This caused DMMV/MMVQ kernels to read the original AoS data as if it were SoA, producing garbage output or NaN results. Tested on Intel Arc Pro B70 (32GB) with Q8_0, Q4_K_M models. Coding was AI-assisted (Claude), reviewed and tested on hardware by a human. Fixes ggml-org#20478 * SYCL: add RAII temp buffer class + macro guard for host fallback Replace sycl_ext_malloc_with_fallback/sycl_ext_free_fallback free functions with sycl_reorder_temp_buffer RAII class. The host_fallback bool is now a private member, and cleanup happens automatically at scope exit. Add GGML_SYCL_HOST_MEM_FALLBACK cmake option (default ON) to guard the host memory fallback code path. Device access to host memory requires Linux kernel 6.8+ (Ubuntu 26.04+); users on older kernels can set -DGGML_SYCL_HOST_MEM_FALLBACK=OFF to disable it. Addresses arthw's review on PR ggml-org#21638. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * SYCL: document GGML_SYCL_HOST_MEM_FALLBACK build option in SYCL.md Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * SYCL: add reorder-aware DMMV dequantizers for Q4_K and Q6_K Q4_K and Q6_K had reorder support for MMVQ and GEMM paths but not DMMV. When the DMMV path encountered reordered data it would abort. Add DMMV kernels that read from the SOA reorder layout for both types. Same math as the non-reorder versions, different memory access pattern. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
…gml-org#21873) * Update register tiling matmul to use f32 accumulation * fix profiling code * Fix register tiling matmul for chrome, i'm blaming dawn * Update batch tuning value for iOS * compile fix * Fix use of new load function * Move to a single query set for GPU profiling * Move to batching compute passes when not profiling * Refactor build_multi * remove iOS throttling now that we're batching compute passes
…org#20627) Co-authored-by: Rehan Qasim <rehan.qasim@10xengineers.ai>
…gml-org#20633) * ggml-cpu: add 128-bit impls for i-quants, ternary quants * ggml-cpu: add 128-bit impls for iq2_xs, iq3_s, iq3_xxs, tq2_0 Co-authored-by: Rehan Qasim <rehan.qasim@10xengineers.ai> * ggml-cpu: refactor; add rvv checks --------- Co-authored-by: taimur-10x <taimur.ahmad@10xengineers.ai> Co-authored-by: Rehan Qasim <rehan.qasim@10xengineers.ai>
* nix: support unified apple-sdk * Impl roll op for Metal * Revert "nix: support unified apple-sdk" This reverts commit abfa473. * update ops.md * update op docs
* ggml: add graph_reused * use versioning instead of reuse flag * increment version with atomic * use top bits for split numbering * add assert * move counter to ggml.c * set uid in split_graph only * fix windows * address further review comments * get next_uid rather than doing bit manipulation * rename + add comment about uid
* fix NemotronH vocab loading by using trust_remote_code for unsupported config patterns * fix NemotronH tokenizer loading by overriding set_vocab with trust_remote_code
* support nvfp4 tensors for Gemma4 * add wo_s to build_attn * add wo_s to build_attn * fix glm4
…ers (ggml-org#21245) * model : refactor QKV into common build_qkv and create_tensor_qkv helpers * model : extend build_qkv to bert/mpt/dbrx/olmo/lfm2/nemotron-h/granite-hybrid/gemma3n-iswa/t5-dec and fix wqkv_s
…g#21962) (ggml-org#21980) * server: tests: fetch random media marker via /apply-template (ggml-org#21962 fix) * server: allow pinning media marker via LLAMA_MEDIA_MARKER env var get_media_marker() checks LLAMA_MEDIA_MARKER at first call and uses it as-is if set, falling back to the random marker otherwise. Tests no longer need to fetch the marker dynamically via /apply-template: the fixture sets LLAMA_MEDIA_MARKER=<__media__> so the hardcoded prompts work as before. Address review feedback from ngxson * server: make get_media_marker() thread-safe via magic statics Use a C++11 static local with a lambda initializer instead of a global static with an empty-check. The runtime guarantees initialization exactly once without explicit locking. Address review feedback from ggerganov * nits * nits
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Updates dev branch with latest release (b8821) from ggml-org/llama.cpp