Commit Graph
256 Commits
Author SHA1 Message Date
Niklas Wenzel 915dc6d38c metal : fix memory leaks due to missing autoreleasepools (#27758) 2026-08-27 12:53:08 +03:00
11cd988428 ggml-metal: add chunked SSD MMA for Mamba-2 prefill optimization (#26647)
* metal: WIP chunked SSD SSM_SCAN kernels for multi-token prefill

* metal: drop scalar SSD path; MMA + sequential tail

* drop WIP ssm scan test noise

* remove state_from_dst and rename CS and NSG constants

* remove unrelated  added whitespace padding

* added clarity to mma_tokens calculation

* added clarity to use_mma bool checks

* added comments to metal ssd op constants for clarity

* reserve K tokens for sequential kernel rollback snapshots

* reset concurrency between mma and seq tail

* remove print args no longer used

* fixed comment to no longer point to specific line

* add FC_SSM_SCAN so seq path skips token offlset unless it's mma tail

* added changes to new ssm.metal for rebase after ggml-metal.metal refactor

* specialize ssm_scan tail with a template instead of a function constant

---------

Co-authored-by: dpantaleoni <dominikpantaleoni@gmail.com>
Co-authored-by: forforever73 <690105611@qq.com>
2026-08-26 11:57:07 +03:00
Yuri KhrustalevandGeorgi Gerganov 3737e41370 metal : null-check buffer alloc to fix OOM crash (#25371)
* metal : null-check ggml_metal_buffer_init result to avoid OOM crash

ggml_backend_metal_buffer_type_alloc_buffer used the result of
ggml_metal_buffer_init without checking for NULL. ggml_metal_buffer_init
returns NULL when the underlying Metal allocation fails (e.g. an
out-of-memory condition), and the following ggml_metal_buffer_is_shared(res)
call dereferences it, turning a recoverable allocation failure into a hard
crash (EXC_BAD_ACCESS). This is easy to hit on memory-constrained devices
such as iOS when a model/context exceeds the available Metal budget.

Log the failure using the existing GGML_LOG_ERROR convention and return
NULL so the allocator surfaces a diagnosable error up the stack instead of
crashing.

* cont : fix log

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
2026-08-25 14:35:39 +03:00
YiChen LvandGeorgi Gerganov f280b26983 metal : per-device tuned (Q, NE) for flash-attn vec (#26570)
* metal : per-device tuned (Q, NE) for flash-attn vec (#25750)

* rebase Q-generic FA vec body from 01dc93607 (#23114)

* add 53 f16 (Q,NE) flash-attn vec instantiations (vec 80 -> 133)

* add FA vec (Q,NE) tuning table + dispatch wiring + SMEM cap fallback

* add  FA vec (Q,NE) perf sweep

* fill tuning result

* fold family table into a per-family representative SKU

* refactor tuning result format

* extend FA vec tuning to quantized KV caches

* sync fa vec tuner bucketing with runtime, use pointwise tuning regret

* update tuned table

* format and cleanup

* prefix fa_vec tuning procs with ggml_backend_metal_tuning_, drop unused fa_vec_override_active

* add device id -> token lookup for the offline tuning tool

* add ggml-metal-tuning skeleton

* add op-agnostic perf cell + median timing for the tuner

* add FA-vec graph build + tensor init to the tuner

* tools : add FA-vec (Q,NE) sweep, compression and table emit

* cool down and re-measure the dirty window on thermal drift

* test-backend-ops : replace the FA vec tune mode with a bounded (Q,NE) slice

* tools : document the Metal tuner, point the table comment at it

* abort on unknown KV type, single-source fa_vec_legal_ne

* cleanup

* honor -o in the FA vec (Q,NE) slice

* retune FA-vec (Q, NE) under a pointwise no-harm gate

* cont : add fa-vec tunings for M1 Pro, M2 Ultra, M5 Max

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
2026-08-24 19:22:27 +03:00
b615f5b4bd metal: per-op source split + parallel compile (#26561)
* metal : per-op source split + parallel compile (#24021)

* preliminary extract common header

* op source split

* split metallib into 8 libs && load in parallel

* derive kernel->library routing from functionNames

* x-macro lib list + underscore filenames, dedup QK_NL, MRC fixes

* op source split 8 to 20

* improve robustness of source fallback

* clean up

* change bool -> atomic_bool

* only prepend headers that source actually includes

* no semaphore, use GCD global queue

* dedup library compile path, fix NSError lifetime, rename gla

* relocate upstream concat/rope_back/repeat kernel changes into split files

* move ggml-common.h from common.h into dequantize.h to shrink binary size

---------

Co-authored-by: lvyichen <lvyichen@stepfun.com>

* metal: add col2im_1d op (f32/f16/bf16) (#25176)

* metal : add set_rows with src0 f16 (#25434)

* metal : add CONV_2D_DW (depthwise convolution) support (#21565)

* metal : add Q2_0 support (#25419)

* metal: fuse snake activation (mul, sin, sqr, mul, add) (#25459)

* ggml-metal: FWHT kernel for metal backend (#25924)

* metal : port new kernels into the split sources

Move the kernels added on master after the split (lightning indexer,
DSv4 hyper-connections, silu_back, f16 bin ops, TQ2_0, the flash-attn KV
dequantization pass, rope offset/inplace, ssm_scan rollback, packed q8_0
dequantization and the tensor-API mat-mat K clamp) into the corresponding
kernels/*.metal sources. Copied verbatim, no functional change.

---------

Co-authored-by: lvyichen <lvyichen@stepfun.com>
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
2026-08-24 19:16:13 +03:00
Georgi Gerganov a14dba686a ggml : shorten virtual device naming in CUDA and Metal (#27608)
* ggml : shorten virtual device naming in CUDA and Metal

Assisted-by: llama.cpp:DeepSeek-V4-Flash-0731

* ggml-metal : build device description at init

Assisted-by: llama.cpp:DeepSeek-V4-Flash-0731

* cont : naming
2026-08-24 12:35:08 +03:00
Georgi Gerganov a30273376e metal : clamp K extent in tensor API mat-mat kernel for K not a multiple of 32 (#27450)
The Tensor API mat-mat path of kernel_mul_mm (GGML_METAL_HAS_TENSOR) fed a
static K=32 tile to the matmul2d op on every iteration. On the last, partial
K tile (ne00 % 32 != 0) the src1 slice extends past the K extent of the
tensor, and the op reads those out-of-bounds elements (undefined behavior per
the MSL specification, section 2.22.2). Depending on stale memory contents,
this corrupted the result or produced NaN.

Make the matmul2d op use dynamic_extent for K, and clamp the K extent of both
operand tensor views to the remaining valid K range (min(32, K - loop_k)) per
iteration, so the op reads exactly the valid K range on every iteration
(mirroring the tail handling of the MPP matmul2d examples). On K-aligned
inputs the clamp degenerates to the full 32-wide tile: the only difference
from the static-K op is that the dynamic-K op derives K from the operand
extents and edge-checks the tile against the tensor extents (a handful of
integer ops per iteration).

Add test-backend-ops MUL_MAT cases with K not a multiple of 32 to exercise
the unaligned K path.

Assisted-by: pi:llama.cpp/Qwen3.8-27B
2026-08-20 21:31:29 +03:00
Georgi Gerganov 63b64a50a3 metal : dequant kv cache only for large batches (#27438) 2026-08-20 17:00:54 +03:00
Georgi Gerganov 70aff25250 metal : dequantize quantized KV to F16 before flash attention (#27390)
* metal: dequantize q8_0 KV to f16 before flash attention

Add a preprocessing pass for GGML_OP_FLASH_ATTN_EXT on the Metal backend:
when the KV cache is quantized (Q8_0 for now), dequantize K and V into a
contiguous F16 scratch buffer and run the existing F16 flash attention
kernels on it, instead of the in-kernel dequantization path.

- new kernel kernel_flash_attn_ext_dequant_to_f16<block_t, QK, deq_t4x4>:
  one thread per quant block (K then V), stride-aware so permuted KV is
  supported; instantiated for Q8_0 (extending to Q4_0/Q4_1/Q5_0/Q5_1 is
  one instantiation + one gate case)
- the gate is type-only: dequantize whenever the KV is quantized,
  regardless of head sizes, GQA ratio or n_kv; the attention kernels
  themselves are untouched
- the F16 copies live in the op's own scratch allocation
  (ggml_metal_op_flash_attn_ext_extra_dequant_f16); the KV pad kernel
  reads the dequantized buffers when the path is active
- the FA pipeline getters gain a use_f16_kv flag selecting the existing
  f16 kernels and contiguous strides
- ref: https://github.com/ggml-org/llama.cpp/pull/25556

Verification (M2 Ultra):
- test-backend-ops test -o FLASH_ATTN_EXT: 4798/4798 pass, including the
  new q8_0 eval cases (decode/prompt, permuted, sinks+ALiBi+softcap,
  kv=113 pad path, kv=16384)
- llama-perplexity on Qwen2.5-0.5B with -ctk q8_0 -ctv q8_0 matches the
  f16 KV reference (PPL 1.0008 vs 1.0008)

Assisted-by: pi:llama.cpp/Qwen3.8-27B

* metal : launch the FA KV dequant kernel separately for K and V

Simplify kernel_flash_attn_ext_dequant_to_f16: it now dequantizes a single
tensor (its own ne/nb and dst) with no is_v branching, and the op dispatches
it twice with the same pipeline - once for K and once for V. The kargs
struct shrinks to a single ne/nb set plus nblocks.

Assisted-by: pi:llama.cpp/Qwen3.8-27B

* metal : dequantize q4_0, q4_1, q5_0 and q5_1 KV to f16 before flash attention

The dequant pass now covers all quantized KV types supported by the Metal
flash attention kernels. The dequant kernel, kargs, scratch allocation and
dispatch are type-generic, so each type is one kernel instantiation plus one
gate case.

Assisted-by: pi:llama.cpp/Qwen3.8-27B

* metal : skip the redundant V dequant when V is a view of K

In MLA-based models, the V of the FA op is a view of K (the first ne20
elements of each K row); the dequantized V is then a view of the dequantized
K, so skip the second dequant dispatch, do not reserve the V scratch region,
and let the pad and attention kernels read V from the K F16 buffer with K's
strides. The detection follows the CUDA backend:
V->view_src && (V->view_src == K || (V->view_src == K->view_src && V->view_offs == K->view_offs))

Also fix the FA pipeline getters: ns10/ns20 are function constants baked into
the kernels and must be the actual K/V row widths as seen by the kernel. The
dispatch now passes them explicitly (nb11_attn/nb10_attn, nb21_attn/nb20_attn)
instead of the getters assuming contiguous F16 KV (ns20 = dv), which was wrong
when V is read from K with K's row pitch (e.g. 576 vs 512).

New test cases: 576/512 q8_0 (MLA shape, V is a view of K) at kv=113 (KV pad),
nb=1 (vec) and nb=64 (non-vec).

Assisted-by: pi:llama.cpp/Qwen3.8-27B

* test : remove backend-specific wording from test-backend-ops comments

Assisted-by: pi:llama.cpp/Qwen3.8-27B

* pi : avoid backend mentions in test-backend-ops comments

Assisted-by: pi:llama.cpp/Qwen3.8-27B

* metal : rename the FA dequant_f16 identifiers to kv_f16

Assisted-by: pi:llama.cpp/Qwen3.8-27B

* cont : clean-up

* cont : remove TODO
2026-08-20 13:43:59 +03:00
Xuan-Son Nguyen fe8156f789 ggml: add ggml_rope_set_offset (+ metal support) (#27120)
* add params

* cpu kernel

* metal kernel

* add test backend ops

* gate other backends

* ggml: (cuda) support ggml_rope_set_offset (#27121)

* rm cuda supports_op guard, fix webgpu clang-format

* ggml: support ggml_rope_set_offset on vulkan (#27344)

* ggml: support ggml_rope_set_offset on vulkan

* remove inplace optimization
2026-08-19 14:04:57 +02:00
Georgi Gerganov 8ef78e644f metal : dequantize q8_0 using packed types (#27370) 2026-08-19 14:10:05 +03:00
1692f9e50b ggml : recurrent state rollback for ggml_ssm_scan (#26623)
* Initial changes for Recurrent state rollback for nemotron for cpu and cuda

* Removing CPU RS rollback. Will enable it in subsequent PRs

* addition of test case

* Removing assert and calling runtime API to check if op is supported

* removing extra API and updating the call sites for K

* replace static cuda detection to runtime fused_op api

* address review comments and fallback when SSM rollback not supprted

* Adding changes for supporting RS-rollback in CPU. Also added test-backend-ops for cpu and cuda

* removing memory manipulation as rs rollback is now supported in CPU

* removing the static probe which is not needed now

* correcting the format

* address review comments

* enabling test for all the backends, unsupported backends will fallback to CPU

* Apply suggestions from code review

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

* choose different graph based on the result of fused_ssm_op is supported or not and also handled memory->n_rs_seq >1 case incase of op is not supported

* Support K > 1 in ssm_scan for all backends

* Fix CI Issues

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
Co-authored-by: Gaurav Garg <gaugarg@nvidia.com>
2026-08-14 17:20:40 +03:00
Georgi Gerganov 4a84b0ad10 metal : add TQ2_0 support (#26980)
* metal: add TQ2_0 support

Add support for the GGML_TYPE_TQ2_0 (ternary, 2 bits per element) type in
the Metal backend.

Assisted-by: llama.cpp:DeepSeek-v4-Flash-0731

* cont : optimize mul_mv kernel

- float ops over integer ops
- precalculate sums
- hoist coef out of the inner loop
- contiguous y loads

llama.cpp:DeepSeek-v4-Flash-0731
2026-08-13 14:33:53 +03:00
153d324bcf llama: add default load-mode auto, which avoids mmap on iGPUs (#26081)
* llama: add new default load-mode auto which picks mmap unless a non-Metal iGPU is used

* Update ggml/src/ggml-hexagon/ggml-hexagon.cpp

Co-authored-by: Max Krasnyansky <maxk@qti.qualcomm.com>

* set mmap_support to false on OpenCL backend

* fix order of load modes

* use -1 for auto

* resolve load mode auto earlier to correctly pick gpu host or cpu memory

* add load mode auto to llama-bench

* bump virtgpu api version, regenerate docs

---------

Co-authored-by: Piotr Wilkin (ilintar) <piotr.wilkin@syndatis.com>
Co-authored-by: Max Krasnyansky <maxk@qti.qualcomm.com>
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
2026-08-11 09:20:46 +03:00
Yash Raj Pandey f8def7fe16 ggml : require contiguous src for ROLL on CUDA and Metal (#25928)
ggml_roll only asserts nb[0] == ggml_type_size, so a permuted src is a
valid input, but the CUDA and Metal roll kernels index by ne alone and
never read the nb strides. A non-contiguous src therefore produced
silently wrong results. Neither backend declared a contiguity
requirement in supports_op, so the scheduler did not fall back to the
CPU implementation, which does handle strides correctly.

Add the requirement to both backends, matching the existing
GGML_OP_ROPE guard, and add a permuted test_roll case.
2026-08-10 15:01:44 +03:00
robertomeroni a194a75b7e metal : fix NORM/RMS_NORM for row lengths that leave a partial simdgroup (#26708)
ggml_metal_op_norm sized the threadgroup with
`nth = std::min(nth, args.ne00_t)`, which can leave nth not a multiple of
the simdgroup size. The kernels finish their row reduction with a
cross-simdgroup step where each lane of the last simdgroup reads one
per-simdgroup partial sum out of shmem_f32:

    if (tiisg == 0) { shmem_f32[sgitg] = sumf; }
    threadgroup_barrier(mem_flags::mem_threadgroup);
    sumf = shmem_f32[tiisg];
    sumf = simd_sum(sumf);

When the last simdgroup is partial it has fewer lanes than the
threadgroup has simdgroups, so the tail of the partial sums is never
read and the row sum is too small. For ne00_t = 33 nth becomes 33: two
simdgroups, but only one lane in the second, so one of the two partial
sums is dropped. The mean and variance are then wrong for the whole row.

Round ne00_t up to a whole number of simdgroups instead. Rounding up
rather than dropping the clamp keeps the threadgroup as small as
possible: deleting the line would raise nth to the next power of two
(ne00_t = 544 -> 1024 instead of 544), which costs idle lanes on 26 row
lengths below 8192 that were already correct, including 1536 and 3584.

GGML_OP_NORM is affected as well as GGML_OP_RMS_NORM - both dispatch
through ggml_metal_op_norm.

No mainstream LLM hidden size hits this: ne00_t is ne00/4 on the
vectorized path, so 4096, 8192, 2048 and friends all give a multiple of
32. It is reachable from other norm shapes, e.g. 320-channel norms.

Add NORM and RMS_NORM cases for ne0 = 33, 132 and 260 across the
existing eps values. 33 exercises the scalar path and 132/260 the
vectorized one, since only those divide by 4.

Before, on M3 Pro:

    test-backend-ops test -b MTL0 -o NORM        25/50
    test-backend-ops test -b MTL0 -o RMS_NORM    26/51

After:

    test-backend-ops test -b MTL0 -o NORM        50/50
    test-backend-ops test -b MTL0 -o RMS_NORM    51/51
    test-backend-ops test -b MTL0                13943/13943
2026-08-07 21:09:07 +03:00
JamePeng e40bf88642 metal : avoid threadgroup matrix array instantiation in kernel_lightning_indexer (#26646)
- In MSL, declaring an array of matrix types like `threadgroup half4x4` causes
a 'no matching constructor' compilation error because MSL matrix types do not
have zero-argument default constructors and threadgroup variables cannot have
initializers.

- Fix this by declaring a POD `threadgroup half` array instead and casting
to `threadgroup half4x4 *` for matrix indexing.

Signed-off-by: JamePeng <jame_peng@sina.com>
2026-08-07 07:49:14 +03:00
1464c62d88 metal: implement DSv4 Lightning Indexer (#25893)
* metal: implement F16 Lightning Indexer

- Implement GGML_OP_LIGHTNING_INDEXER for 128-dimensional, 64-head inputs
  with F32 queries and weights plus F16 keys and masks.
- Add tiled and tail kernels and test KV lengths around 8- and 64-element
  boundaries.

llama-bench (--mmap 1, -fa 1, -p 512, -n 128; d=0/10k/20k/30k):

Before:
- pp512: 153.73 ± 0.87 t/s
- tg128: 8.91 ± 0.04 t/s
- pp512 @ d10000: 73.90 ± 0.39 t/s
- tg128 @ d10000: 8.66 ± 0.03 t/s
- pp512 @ d20000: 45.83 ± 0.18 t/s
- tg128 @ d20000: 8.26 ± 0.03 t/s
- pp512 @ d30000: 33.40 ± 0.21 t/s
- tg128 @ d30000: 7.94 ± 0.01 t/s

After:
- pp512: 155.19 ± 0.91 t/s
- tg128: 8.95 ± 0.04 t/s
- pp512 @ d10000: 86.95 ± 0.69 t/s
- tg128 @ d10000: 9.00 ± 0.05 t/s
- pp512 @ d20000: 62.01 ± 0.45 t/s
- tg128 @ d20000: 8.68 ± 0.04 t/s
- pp512 @ d30000: 49.18 ± 0.33 t/s
- tg128 @ d30000: 8.60 ± 0.02 t/s

Assisted-by: Codex

* metal: stage Lightning Indexer K tiles

- Stage and dequantize K in F16 threadgroup memory before simdgroup matrix loads.
- Zero-fill partial tiles and guard stores so all KV segments use the same numerical path.
- Support F32, F16, BF16, Q4_0, Q4_1, Q5_0, Q5_1, and Q8_0 K caches.

llama-bench (--mmap 1, -fa on, -p 512, -n 128; d=0/10k/20k):

- pp512: 160.38 +/- 1.01 t/s
- tg128: 9.08 +/- 0.03 t/s
- pp512 @ d10000: 88.37 +/- 0.46 t/s
- tg128 @ d10000: 9.07 +/- 0.04 t/s
- pp512 @ d20000: 62.53 +/- 0.46 t/s
- tg128 @ d20000: 8.84 +/- 0.03 t/s

Assisted-by: Codex

* dedup Lightning Indexer constants, fix flaky test

* cont : fix whitespace

---------

Co-authored-by: forforever73 <690105611@qq.com>
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
2026-08-03 07:33:37 +03:00
Talha Adnan 221f0f6356 metal : add SILU_BACK (#25982)
* feat(silu_back): implemented silu_back op for f32

* fix(silu_back): removed redundant asserts in ggml-metal-ops.cpp function ggml_metal_op_silu_back.
2026-08-02 22:39:28 +03:00
Georgi Gerganov 9d21b57f2e metal : add F16 support for bin ops (#26465) 2026-08-02 22:28:17 +03:00
Georgi GerganovandThiago Padilha fffbcbdb9d metal: implement DeepSeek V4 hyper-connections (#26459)
- Implement GGML_OP_DSV4_HC_COMB, GGML_OP_DSV4_HC_PRE, and
  GGML_OP_DSV4_HC_POST with SIMDgroup register and shuffle optimized kernels.
- Add Metal dispatch and support plumbing and test the production Sinkhorn
  iteration count and embedding width.

Assisted-by: Codex

Co-authored-by: Thiago Padilha <thiago@padilha.cc>
2026-08-02 21:06:02 +03:00
Niklas WenzelandYiChen Lv d0bfb19812 metal: fix memory unwire if model is freed without any GPU operations (#26082)
* metal: fix memory leak if model is freed without any GPU operations

* metal: run dummy work only if residency sets are used

* metal: wrap function in #if defined

* metal: measure system-wide wired memory in test

* metal: always build regression test

Co-authored-by: YiChen Lv <63285796+forforever73@users.noreply.github.com>

---------

Co-authored-by: YiChen Lv <63285796+forforever73@users.noreply.github.com>
2026-07-30 11:11:27 +03:00
f95de9776b ggml-metal: FWHT kernel for metal backend (#25924)
* metal fwht wip

* shape guard and formatting

* formatting

* Formatting and typos

Co-authored-by: YiChen Lv <63285796+forforever73@users.noreply.github.com>

* fix narrowing issue

Co-authored-by: YiChen Lv <63285796+forforever73@users.noreply.github.com>

* cont : minor style

---------

Co-authored-by: YiChen Lv <63285796+forforever73@users.noreply.github.com>
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
2026-07-28 10:44:06 +03:00
Ilia Ilmer c588c4f476 metal : add f16 type support to leaky relu (#25981) 2026-07-23 11:45:46 +08:00
Pascal b3c9d1b846 metal: fuse snake activation (mul, sin, sqr, mul, add) (#25459)
* metal: fuse snake activation (mul, sin, sqr, mul, add)

Mirror the CUDA, Vulkan and CPU snake fusion: same matcher on the naive
5-op chain, same F32 contract on a and inv_b, same F32/F16/BF16 kernel
with F32 compute. Follows the Metal backend idioms: bf16 instantiation
gated behind GGML_METAL_HAS_BF16 and concurrency ranges checked on the
remaining chain nodes before encoding, as done by the bin fusion.

Covered by the existing backend-agnostic SNAKE_FUSE tests.

* metal: absorb snake fusion into ggml_metal_op_bin

Extract the matcher to ggml_metal_op_can_fuse_snake, mirroring the
Vulkan naming, and dispatch the fused path from ggml_metal_op_bin.
The encode loop switch is back to a single call per case.

Address review from ggerganov

* metal: fix indentation in ggml_metal_op_can_fuse_snake
2026-07-15 13:53:31 +03:00
Jeff Bolz 7cbd61002d vulkan/cpu: Support f16 as SET_ROWS src. (#25432)
* vulkan/cpu: Support f16 as SET_ROWS src.

This adds full support for f16 SET_ROWS (equivalent to f32) to vulkan and CPU
backends, and adds more backend tests.

* Set DenormPreserve 16 when supported, to try to fix failures on Intel

* tune error threshold

* update metal supports_op
2026-07-14 08:26:55 -05:00
Pasha Khosravi 14d3ba45f3 metal : add Q2_0 support (#25419) 2026-07-14 07:52:00 +03:00
Sou-lyandGeorgi Gerganov 92b187c97e metal : add CONV_2D_DW (depthwise convolution) support (#21565)
* metal : add CONV_2D_DW (depthwise 2D convolution) support

* test : add perf cases for CONV_2D_DW

* metal : use 3D dispatch for CONV_2D_DW kernel

* metal : add channel-tiled CONV_2D_DW kernel for non-contiguous layouts

* metal : simplify CONV_2D_DW dispatch and trim comments

* metal : merge duplicate CONV_2D_DW pipeline getters

* tests : add F16 CONV2D_DW tests

* cpu : fix F16 kernel support for CONV_2D_DW

* tests : remove commented-out CONV_2D_DW test block

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
2026-07-09 12:29:15 +03:00
fairydreamingandGeorgi Gerganov 0512ef1e5a metal : add set_rows with src0 f16 (#25434)
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
2026-07-08 09:49:07 +03:00
PascalandYiChen Lv f36e5c348b metal: add col2im_1d op (f32/f16/bf16) (#25176)
* metal: add col2im_1d op (f32/f16/bf16)

Gather kernel mirroring the CPU/CUDA path: each output (t_out, oc)
reads its ceil(K/s0) source columns with an F32 accumulator, a single
write and no atomics. One thread per output element, 256 per
threadgroup.

* metal: check dst contiguity and type match in supports_op for COL2IM_1D

Align the GGML_OP_COL2IM_1D predicate with the CPU, CUDA, and Vulkan
backends: the kernel writes dst with linear indexing and assumes the
same type as src0, so supports_op must also require a contiguous dst
and op->type == op->src[0]->type.

* Update ggml/src/ggml-metal/ggml-metal.metal

Co-authored-by: YiChen Lv <63285796+forforever73@users.noreply.github.com>

---------

Co-authored-by: YiChen Lv <63285796+forforever73@users.noreply.github.com>
2026-07-06 20:47:36 +02:00
Georgi Gerganov cae0a3b0b0 metal : check for BF16 support in concat kernel (#24747) 2026-06-18 09:16:06 +03:00
Georgi Gerganov 0843245cb1 metal : implement rope_back operator (#24725)
Reuse existing rope kernels with a function constant to toggle forward/backward
rotation, avoiding duplicate kernel code.

Assisted-by: pi:llama.cpp/Qwen3.6-27B
2026-06-17 20:36:05 +03:00
Georgi Gerganov 8d2e580632 metal : add f16 and bf16 support for concat operator (#24724)
* metal : add f16 and bf16 support for concat operator

Extend the Metal backend concat operator to support f16 and bf16 tensor
types in addition to the existing f32 and i32 support.

- Template kernel_concat on type T with specializations for float, half,
  bfloat, and int
- Add type-specific pipeline getter ggml_metal_library_get_pipeline_concat()
- Update device support check to allow f16 unconditionally and bf16 when
  device supports bfloat16
- Update dispatch to select the correct kernel specialization by type

Assisted-by: pi:llama.cpp/Qwen3.6-27B

* metal : extend concat operator to support f16, bf16, i8, i16 and i64

Assisted-by: pi:llama.cpp/Qwen3.6-27B
2026-06-17 19:38:55 +03:00
Georgi Gerganov 272088b9f2 metal : add repeat bf16 (#24638) 2026-06-15 09:57:16 +03:00
ZihaoMu 85f99dca8b ggml: support concat for scalar types at cuda backend (#24011)
* cuda: support concat for scalar types

* Update concat.cu

* fix metal ci issue
2026-06-12 09:32:44 +03:00
Gaurav Garg e95dae18d6 Remove padding and multiple D2D copies for MTP (#24086)
* Make ggml_gated_delta_net take only the initial recurrent state (D, 1, n_seqs) and passes the snapshot count K as an op parameter instead of inferring it from state->ne[1].

Remove the padding hack and copy all emitted snapshots into the recurrent cache with a single strided ggml_cpy

* Make GDN changes in all backends. Address review comments.

* Fix CI build errors
2026-06-10 23:21:16 +05:30
Xuan-Son Nguyen daf6bc9f2d metal : fix im2col 1D case (audio models) (#24220) 2026-06-08 09:03:18 +03:00
Georgi Gerganov 3d1998634e metal : reduce rset heartbeat from 500ms -> 5ms (#24074) 2026-06-04 08:05:32 +03:00
Shrivas Shankar 95b8b8ec1a metal: template GLU kernels to support f16/f32 (#23882)
Drops the hardcoded f32 GLU kernels in favor of a single template. We now load/store in the native tensor type (half or float) to save memory bandwidth, but keep the actual ALU compute in float to avoid exploding math in geglu/swiglu. Also opened up the dispatch gate to allow f16 inputs.
2026-06-01 15:40:28 +03:00
Georgi Gerganov 2d9b7c8e98 metal : restore im2col implementation for large kernels (#23901) 2026-05-30 15:26:13 +03:00
forforever73andlvyichen 35c9b1f39e metal : add apple device id (#23566)
Co-authored-by: lvyichen <lvyichen@stepfun.com>
2026-05-25 21:05:16 +03:00
Georgi Gerganov a1a69f777a metal : optimize concat kernel and fix set kernel threads (#23411)
* metal : fix GGML_OP_SET kernel threads

* tests : extend test_cpy to support different src/dst shapes

Extend test_cpy to support different source and destination tensor shapes
for CPY operations (reshaping), where the total number of elements must match.

- Renamed ne -> ne_src, added ne_dst parameter (default: use src shape)
- Added 50 new reshaping test cases covering 1D<->2D<->3D<->4D conversions
- Tests exercise 1024 boundary, small shapes, and large dimensionality changes
- Fixed dangling reference bug (storing & to temporary std::array)
- Updated all existing test calls with permute/transpose args for compatibility

Assisted-by: llama.cpp:local pi

* metal : optimize concat kernel with row batching for small widths

When ne0 < 256, batch multiple rows into a single threadgroup to improve
occupancy. This avoids underutilizing the GPU when processing narrow tensors.

- Dispatch nth = min(256, ne0) threads per group
- Calculate nrptg (rows per threadgroup) to fill up to 256 threads
- Update kernel index calculation to handle the row batching
- Add boundary check for i1 >= ne1

Assisted-by: llama.cpp:local pi

* tests : clean-up

* tests : refactor CPY shape tests to use dimension permutations

Replace 75 hardcoded test cases with a loop over permutations of
{3, 5, 7, 32} (total elements: 3360). Each src permutation is tested
against canonical sorted and reverse dst, skipping identical shapes.
Covers F32, F16, and Q4_0 (when both src and dst ne0 == 32).

Assisted-by: llama.cpp:local pi
2026-05-21 13:34:08 +03:00
Georgi Gerganov 57ebaf4edd metal : optimize pad + cpy (#23354)
* metal : optimize pad

* metal : optinmize cpy

* cont : better row packing in threadgroup
2026-05-20 09:42:00 +03:00
CrispStrobe 560445bf34 metal : tighten input-position loop in kernel_conv_transpose_1d (ggml/1477)
For a given output position j on the time axis, only input positions
i such that i*s0 <= j < i*s0 + K contribute -- i.e.
i in [ceil((j - K + 1)/s0), floor(j/s0)] intersected with [0, IL-1].
That's at most ceil(K/s0) values (typically 2 for stride==K/2
transposed convs).

The current kernel iterates the full IL range and filters with an
`if`, amplifying per-thread work by IL/ceil(K/s0) (~160x for IL=320,
K=10, s0=5 -- a representative codec-decoder shape). On Apple M1
the wasted work trips the macOS GPU watchdog
(kIOGPUCommandBufferCallbackErrorImpactingInteractivity) on long
graphs.

Compute i_min, i_max analytically before the inner loop and iterate
only [i_min, i_max]. Output is bit-identical (same multiplies and
adds in the same order); loop bound shrinks by IL/ceil(K/s0).

Tested on M1 with a downstream consumer running a TTS codec at full
T_codec; end-to-end codec decode ~3-4x faster, zero watchdog hits
across long synthesis runs vs ~30% pre-patch.
2026-05-16 16:11:29 +03:00
Aman GuptaandGeorgi Gerganov 255582687b llama + spec: MTP Support (#22673)
* spec: support MTP

* fix batch size

* rename files

* cont : simplify (#7)

* MTP: clean-up (#9)

* MTP: clean-up

* review: use llama_context_type instead of llama_graph_type

* review: remove llama_model_has_mtp

* review: fix convert issues

* convert: fix pycheck

* review: formatting

* use `mtp-` for identifying mtp models

* convert: fix mtp conversion

* mtp -> draft-mtp

* remove unused llama_arch

* add need_embd in speculative

* llama: allow partial seq_rm for GDN models for speculative decoding

Currently speculative checkpoint needs to restart from a checkpoint
after some draft tokens are not accepted, this leads to some wastage in
running the target again. This PR adds the ability to rollback upto
`draft_max` by storing the GDN intermediates.

* fix pending state

* vulkan: add GDN partial rollback

* meta: extend check to axis 1

* metal: add GDN partial rollback

Extend the gated delta net kernel to store intermediate states for
partial rollback support on the Metal backend.

- Add K (snapshot slot count) as a function constant
- Read input state from slot 0 of the 3D state tensor
- Write intermediate states to different slots during token loop
- For K=1, maintain backward-compatible single-slot behavior

Ref: https://github.com/ggml-org/llama.cpp/commit/8c05923630110223669f069af2000e9cf10c02bc

Assisted-by: llama.cpp:local pi

* delta_net_base: use ggml_pad instead of new_tensor

* review: add need_rs_seq

* review: rename part_bounded to n_rs

* review: deslop comments

* review: rename, add asserts

* server : adjust checkpoint logic (#11)

* server : adjust checkpoint logic

* cont : rm asserts

* server-context: fix early exit

* spec : fix compatibility with n-gram and add TODOs (#13)

* metal : cleanup

* llama : fix faulty bitwise check in recurrent memory

* server : disable RS-based MTP in combination with other spec types

* spec : add TODOs

* cont : fix comment

* cont : update comment

* common : fix logic for ngram + mtp compat

* llama-memory: enable checkpointing with partial rollback

* cont: add test-case for loading into a dirty ctx

* llama-memory-recurrent: clear rs_idx in clear

* download: fix mtp path

* llama-arch: fix enorm op

* docs: update docs

* conversion: fix type annotations

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
2026-05-16 20:06:23 +08:00
Georgi Gerganov 67b2b7f2f2 logs : reduce (#23021)
* logs : reduce

* args : fix envs

* server : fix build

* common : print verbosity level at start

* server : clean-up logs

* server : print prompt processing timings + sampling params

* minor : whitespaces
2026-05-14 13:05:52 +03:00
guyfischman da44953329 metal : promote mul_mv/mul_mm batch divisors to function constants (#22711)
* metal : promote mul_mv/mul_mm batch divisors to function constants

* metal : take op directly in get_pipeline_mul_mv_ext
2026-05-12 08:15:02 +03:00
Georgi Gerganov e43431b381 llama : fix device state save/load (#22805) 2026-05-07 21:43:40 +03:00
Georgi Gerganov d6e7b033a4 llama : add option to save memory in device buffers (#22679)
* llama : add option to save memory in device buffers

* tests : extend llama-save-load-state
2026-05-05 06:35:07 +03:00
Ruben OrtlamandSigbjørn Skjæret 660b1b4bdc vulkan: add get/set tensor 2d functions (#22514)
* vulkan: add get/set_tensor_2d functions

* fix backend interface comments

* Update ggml/src/ggml-metal/ggml-metal.cpp

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>
2026-04-30 17:37:13 +02:00