2564 Commits

Author SHA1 Message Date
shalinib-ibm 8141e730f1 ggml-cpu: support K tails in power10 Q8/Q4 MMA matmul (#24753)
* ggml-cpu: support K tails in Power10 MMA Q8/Q4 matmul

This patch removes the requirement that K be divisible by kc in the tinyBlas_Q0_PPC tiled matmul path. Process the final K panel using its actual depth and pass the reduced panel size through packing and kernel execution.  This allows more workloads to use the MMA kernel and reduces fallback to mnpack.

* Apply suggestion from @taronaeo

Co-authored-by: Aaron Teo <taronaeo@gmail.com>

---------

Co-authored-by: Aaron Teo <taronaeo@gmail.com>
2026-06-19 08:55:38 +03:00
Pascal 3a3edc9ac6 Ggml/cuda col2im 1d (#24417)
* cuda: add GGML_OP_COL2IM_1D, follow-up to the CPU op

* cuda: col2im_1d use fast_div_modulo for the index decomposition

* cuda: col2im_1d tighten supports_op, type match and contiguous dst
2026-06-18 22:23:01 +02:00
Max Krasnyansky d2c67959b3 hexagon: support for op-trace (fine-grain tracing of HVX/HMX/DMA events) (#24592)
* hex-optrace: add support for optrace and instrument matmul and flash-atten code

* hex-trace: improve trace event and prefetto generator

* hex-trace: add new script dedicated to handling traces, specifically perfetto traces

* hex-trace: add --head/--tail options to profile and trace tools

* hex-trace: fix whitespaces

* hex-trace: fix flake8 warnings

* hex-trace: fix flake8 warnings

* hmx-fa: restore q_tiles clearing

* hex-profile: remove circular dep in includes

* hex-trace: simplify trace sizing check

* hex-profile: sort events in the summary by name
2026-06-18 08:35:02 -07:00
Neo Zhang 9724f664e8 [SYCL] rename GGML_SYCL_SUPPORT_LEVEL_ZERO (#24719)
* rename GGML_SYCL_SUPPORT_LEVEL_ZERO to GGML_SYCL_SUPPORT_LEVEL_ZERO_API, and GGML_SYCL_ENABLE_LEVEL_ZERO to  GGML_SYCL_USE_LEVEL_ZERO_API

* fix code format

* fix error when rebase
2026-06-18 11:18:26 +03:00
Neo Zhang dd69db2924 sycl : support MUL_MAT and OUT_PROD with Q1_0 (#24721) 2026-06-18 11:17:37 +03:00
Neo Zhang 6f1034b32a [SYCL] support OPs: conv_2d, conv_2d_dw, conv2d_transpose (#24600)
* fix conflict

* fix format issue, rename

* rm debug code

* correct the file name
2026-06-18 09:40:03 +03:00
Georgi Gerganov cae0a3b0b0 metal : check for BF16 support in concat kernel (#24747) 2026-06-18 09:16:06 +03:00
shalinib-ibm 2e88c49c90 ggml-cpu: Conditionally enable power11 backend based on compiler support (#24687)
* ggml: Conditionally enable power11 backend based on compiler support

Guard POWER11 backend creation behind a compiler flag check for -mcpu=power11. This avoids build failures on current GCC/Clang toolchains while preserving forward compatibility once POWER11 support becomes available.

* Update CMakeLists.txt

ggml-cpu: Use -mcpu=power10 for P10 and P11
2026-06-18 02:45:19 +08:00
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
Neo Zhang 74a80dd9c0 [SYCL] add dev2dev memcpy by SYCL API (#24476)
* add dev2dev memcpy by SYCL API

* mv GGML_SYCL_DEV2DEV_MEMCPY to runntime table

* update the detect method for p2p comm

* fix the erro created during fix confilct

---------

Co-authored-by: Neo Zhang <NA>
2026-06-17 17:21:34 +03:00
Neo Zhang d1759e4156 [SYCL] Add conv_3d (#24691)
* add conv_3d

* optimize

* update ops.md

* restore test script

* rm unused code

* rm copyright notes
2026-06-17 17:20:01 +03:00
Winston Ma 558e221b70 vulkan: record actual memory properties during buffer creation (#24326) 2026-06-17 11:14:48 +02:00
Ruben Ortlam ea21e03955 Revert "cuda: reset cuda context after reading memory size (#23935)" (#24715)
This reverts commit 0f7fada56b.
2026-06-17 10:59:35 +02:00
kononnable d5376cf5d7 ci: fix vulkan docker images (#24595)
* Update vulkan-shaders-gen.cpp

* Update vulkan-shaders-gen.cpp

add comment describing code change intention

* Update vulkan-shaders-gen.cpp

fix potential UB
2026-06-17 09:43:45 +02:00
lhez 51571722aa opencl: optimize mul_mat_f16_f32_l4 for decode (#24504) 2026-06-16 23:21:26 -07:00
Zijun Yu 890f1a27ed openvino: OV 2026.2, context-shift, Q5_1 support, gemma4 dense/embedding, and -fa off (#24503)
* Add interface is_model_splitted() to check the c-graph is splited or not

* Infer and propagate dynamic-dimension indices for all tensors in the GGML graph in api compute_model_outputs()

* Only do this for fallback sub graph

* Move dynamic dims compute in graph missmatch

* ggml-openvino: fix tensor data handling for PERMUTE/VIEW ops in split models

* ggml-openvino:add comments

* ggml-openvino: override VIEW op_case to 0 for split model inputs

* openvino backend: Handle unsupported VIEW shape-mismatch in OpenVINO backend

* Enable additional mul_mat tests and add tensor data saving function (#81)

* ggml-openvino: fix CONT/TRANSPOSE mapping and improve dynamic-dimension handling

* OpenVINO: add NORM/TANH support and rework SOFT_MAX translation

* ggml-openvino: extend VIEW handling

* Enable -fa off (#118)

* Enable --context-shift

* Fix llm param compute error for normal softmax not the softmax in attention

* OpenVINO backend: fix error for attention size compute in llm param

* use tensor->extra in infer_request i/o

* OpenVINO backend: refacter the compute_llm_params() func add get_attention_pattern_case to easy extand

* OpenVINO backend: clean unused code

* 1to1 match op update (#146)

* added translate_1to1_match_1_input function and updated gelu and tanh translations

* Remove unused translation function calls

---------

Co-authored-by: Mustafa Cavus <mustafacavus@intel.com>

* initial gemma4 support

* removed hardcoded names for kv cache slicing

* OpenVINO backend: Add new attention pattern for llm parameters compute

* flash attn Q shape static conversion

* Remove slice in permute translation when n_seq is 1

* return optional in extract_layer_from_name

* OpenVINO backend: refactor VIEW related operation (#148)

* OpenVINO backend: refactor VIEW related operation

* Enable VIEW handling in following ops

* OpenVINO backend does not support GGML_OP_NORM & GGML_OP_L2_NORM with VIEW input accuracy issue from OpenVINO

* OpenVINO backend: Add ops l2_norm & pad

* OpenVINO backend does not support CPY with non-contiguous data or mismatched types

* add op SSM_CONV GATED_DELTA_NET

* OpenVINO backend: fix error for bf16 in OV gpu plugin

* reverted static Q input shape for attention layer

* OpenVINO backend: remove hardcode name inp_tokens, which ignore some leaf case

* Disable remote tensor due to bug in ov gpu

* Disable n_token > 1 GATED_DELTA_NET on gpu

* OpenVINO backend: fix the view op dynamic handling issue in gemma4 & enable view + get_row

* OpenVINO backend: clean code

* OpenVINO backend: enable view + norm/rms_norm

* OpenVINO backend: concat op

* OpenVINO backend: argsort op

* OpenVINO backend: enable unary + view & GGML_UNARY_OP_SOFTPLUS

* Fix issue for test-backend-ops in TOPK_MOE, which compare VIEW ops result, VIEW node in OpenVINO no need compare, the whole graph result is correct

* OpenVINO backend: enable sum_rows

* OpenVINO backend: enable clamp

* OpenVINO backend: enable DIV

* OpenVINO backend: enable GGML_OP_MUL_MAT_ID

* OpenVINO backend: disable MUL_MAT_ID_FUSION case with large mem needed

* OpenVINO backend: Disable GGML_OP_ARGSORT, cause test_backend-ops failed

* OpenVINO backend: fix issue in mul_mat_id

* OpenVINO backend: Disable DIV with broadcast on GPU

* OpenVINO backend: update DIV

* use ov internal op GatedDeltaNet

* OpenVINO backend: enable llama erch test qwen3next

* OpenVINO backend: enable RMS_NORM + VIEW & remove op_case 2 for rope

* OpenVINO backend: fix error

* suggested changes, need review

* suggested changes, need review

* OpenVINO backend: clean unused code & fix build warning

* OpenVINO backend: enable minicpm3 for arch test

* Disable GDN op (#177)

* disable gated_delta_net

* update stateful_kv_size correctly in mismatch case

* OpenVINO backend: enable arch test for qwen3vl

* OpenVINO backend: enable cohere2 for arch test

* OpenVINO backend: enable t5 for arch test

* OpenVINO backend: enable jamba for arch test

* OpenVINO backend: remove warning for tmp

* OpenVINO backend: enable kimi-linear for arch test

* Remove unused

* Fix gpt-oss accuracy issue

* OpenVINO backend: enable arctic for arch test

* OpenVINO backend: enable grok for arch test

* Gemma4 initial npu support (#179)

* Initiall gemma4 npu support

* temp. fix for gemma4 accuracy bug on npu

* Remove hardcoded names for npu-fold handling

* revert static n tokens for cont translation as it is not needed

* removed unused variable

* ggml-openvino: add GGML_OPENVINO_ENABLE_CACHE env var to control decoder cache. Add environment variable GGML_OPENVINO_ENABLE_CACHE (default: YES). When set to NO, the decoder_cache is bypassed and models are rebuilt from the cgraph on every inference call in both dynamic and static compute paths. This is useful for debugging and verifying correctness without caching interference.

* Revert "Gemma4 initial npu support (#179)"

This reverts commit 0d29a9c4a52dc2c8aa52990f1a3854cfb01768ad.

* OpenVINO backend: disable debug log print

* Update TBB discovery. Delegated to OpenVINOs own config.

* OpenVINO backend: GGML_OPENVINO_ENABLE_CACHE YES -> 1

* OpenVINO backend: fallback FLASH_ATTN_EXT in gemma3n to CPU backend

* Add raw ov infer profiling metric

* Add OV raw infer time metric to static compute path

Co-authored-by: virajwad <84867530+virajwad@users.noreply.github.com>

* Modify precision of static profiling

* update to OV 2026.2, add OV windows CI

* fix editorconfig-checks

* Initiall gemma4 npu support

* temp. fix for gemma4 accuracy bug on npu

* Remove hardcoded names for npu-fold handling

* revert static n tokens for cont translation as it is not needed

* removed unused variable

* test-llama-archs fix

* Fix gemma4 flash_attn fallback

* support im2col

* fix code style

* disable add_rope_sin_cos optimization

* stateless boradcast and rope optimizations

* Enable manual gqa attn by default for stateless gpu

* manual gqa: fixed static batch

* gemma4 llama-bench ctx update fix

* Update OV win CI

* stateful rope fusion temp. fix

* OpenVINO backend: Conslolidate supported ops

* Exclude unsupported GGML_OP_SUB cases

* Exclude unsupported TOPK_MOE cases

* OpenVINO Backend: MUL_MAT enhancements

* Update OV CI

* support f16 mask input for npu

* Make GGML_OPENVINO_* env vars usage uniform

Standardize all GGML_OPENVINO_* env flags:
positive integers >0 to enable. Unset, empty, =0, or non-numeric values to disable.
This fixes cases where text values or empty strings enabled features.

* OpenVINO backend: Enhance envvar handling

* more cleanup

* move ggml_openvino_env_flag to appropriate place

* OpenVINO backend: add REPEAT translator, Q5_1 weights, and GLU view-input fix

* ggml-openvino: fix -Werror=cast-qual in extract_q5_1_data

* Update openvino.Dockerfile

Use BuildKit cache mounts for faster Docker rebuilds.
Use apt instead of dpkg, remove unused .ddeb downloads, add DLLAMA_BUILD_TESTS=OFF.

* ggml-openvino: centralize env var access via *getenv_str/getenv_int helpers

Replace getenv and legacy flags with _str and _int helpers.Minor cleanup, doc updates.

* OpenVINO backend: Enable GGML_OP_ADD_ID

* Uptade openvino backend clamg-format

* clang-format

* Update OPENVINO.md (#211)

* OpenVINO backend: fix accuracy issue for op CONCAT with i64 precision

* Remove strict concurrency for gpu-openvino-low-perf

* Update openvino CI keynames; add ccache-clear

* Apply suggestions from code review

Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>

* Fix formatting

---------

Co-authored-by: Xuejun Zhai <Xuejun.Zhai@intel.com>
Co-authored-by: Mustafa Cavus <mustafa.cavus@intel.com>
Co-authored-by: Mustafa Cavus <mustafacavus@intel.com>
Co-authored-by: Xuejun <XuejunZhai@intel.com>
Co-authored-by: Wang Yang <yang4.wang@intel.com>
Co-authored-by: Ravi Panchumarthy <ravi.panchumarthy@intel.com>
Co-authored-by: virajwad <84867530+virajwad@users.noreply.github.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Mostafa Faheem <mostafaaafaheem@gmail.com>
Co-authored-by: Sigbjørn Skjæret <1629204+CISC@users.noreply.github.com>
2026-06-17 09:11:21 +03:00
Neo Zhang 58728bdbf0 sycl : Enable to support fp16 by OPs: SQR, SQRT, LOG, SIN, COS, CLAMP (#24692) 2026-06-17 08:58:03 +03:00
Alexey Kopytko ebbc1e51c1 SYCL: fix use-after-free bug with async memcpy in MoE prefill (#24676)
* SYCL: fix a bug with async memcpy

* make mmid_row_mapping_host persistent

* comment on stream->wait

* Apply suggestion from @sanmai

* Apply suggestion from @sanmai

* Apply suggestion from @sanmai
2026-06-17 08:57:29 +03:00
Francois Dugast 9b260fc9ef sycl: Add optional USM system allocations (#22526)
This introduces an optional feature to allocate large GPU buffers (≥ 1GB)
using USM system allocations if supported by the device. It allows using
buffers from the system allocator then letting the system manage memory
migrations between host and device as necessary.

This feature is disabled by default and requires the GGML_SYCL_USM_SYSTEM
environment variable to enable. If USM system allocations are not supported
by the device or the system, we fallback to regular allocations.

This feature can allow VRAM overcommit. For example, the test below fails
on B580 due to lack of memory for allocation, but it passes when enabling
USM system allocations:

  ./examples/sycl/test.sh -m Qwen3.5-27B-Q3_K_M.gguf -lv 4

Signed-off-by: Francois Dugast <francois.dugast@intel.com>
2026-06-17 08:54:21 +03:00
Winston Ma 32120c10e3 vulkan: prefer host-visible memory buffers on UMA devices (#22930)
* implement UMA host-visible memory

* update based on 0cc4m's suggestion
2026-06-16 09:36:52 +02:00
Jeff Bolz d5fb104293 vulkan: Support gated_delta_net with S_v=16 (#24581) 2026-06-16 09:26:57 +02:00
Frosty40 ac79caa7ce sycl: support reordered Q4_K/Q5_K/Q6_K MoE MUL_MAT_ID (#24452)
* sycl: support reordered Q4_K and Q5_K MoE MUL_MAT_ID

Extend reordered-weight handling to fused MoE MUL_MAT_ID for Q4_K and Q5_K expert tensors and add Q5_K reordered DMMV coverage. Unsupported 3D reorder cases now fall back instead of aborting.

* sycl: extend MoE reorder to Q6_K mul_mat_id
2026-06-16 08:35:00 +03:00
Neo Zhang fdd109883d [SYCL] Support OP EXPM1, support all UT cases of FLOOR, TRUNC, ROUND (#24363)
* support OP EXPM1, support all UT cases of FLOOR, TRUNC, ROUND

* fix conflict

* rebase, support new UT case of repeat, concat
2026-06-16 08:34:29 +03:00
Pascal ad39ccaa19 vulkan: add col2im_1d op (#24425)
* vulkan: add GGML_OP_COL2IM_1D, follow-up to the CPU op

* vulkan: col2im_1d bounded gather loop instead of full-K scan with modulo

* vulkan: col2im_1d address review from @jeffbolznv

* vulkan: col2im_1d return nullptr for unsupported types, address review from @0cc4m
2026-06-16 06:34:43 +02:00
Jeff Bolz 9dbc6621ae vulkan: support more CONCAT types (#24579) 2026-06-15 13:19:21 +02:00
Andrei 6eab47181c wasm : fix fallback symbol collision (#24639) 2026-06-15 10:11:59 +03:00
Katostrofik e3bb1add8c SYCL: use native subgroup size for K-quant DMMV (#21700) 2026-06-15 10:10:53 +03:00
someoneinjd d8a3f523c8 sycl: fix soft_max_f32 max reduction (#24451) 2026-06-15 10:10:12 +03:00
Neo Zhang 72be44f1d2 sycl : fix reorder function; add fp32/fp16 in build script (#24578) 2026-06-15 10:08:34 +03:00
Neo Zhang 8872ab5467 sycl : enhance set_rows to support q1_0, mxfp4, nvfp4 (#24564) 2026-06-15 10:01:40 +03:00
Neo Zhang 987fbd821d [SYCL] add to support pool_1d, move pool_1d/2d code to pool.cpp/hpp (#24584)
* add to support pool_1d, move pool_1d/2d code to pool.cpp/hpp

* update ops.md
2026-06-15 10:01:07 +03:00
Alexey Kopytko c035ff4902 [SYCL]: Remove per-allocation Level Zero runtime checks (#23399)
* [SYCL] Centralize Level Zero detection in ggml_sycl_init

* use the same wording

* get back the warning

* [SYCL] Remove per-allocation getenv() for GGML_SYCL_ENABLE_LEVEL_ZERO

* bring back the comment

* move it up to make sure devices call the shots

* move the env detection early

* replace g_ggml_sycl_enable_level_zero with a direct call to .ext_oneapi_level_zero

* update the comment

* switch back to g_ggml_sycl_enable_level_zero with a sentinel

* remove the check

* Reduce the diff

* reword, move lower

* move things aroudn

* remove forward declaration if favor of a full replace

* pre-cache results of zeDeviceGetProperties

* put ggml_sycl_get_env back

* replace get_sycl_env with ggml_sycl_get_env

* add whitespace back

* Apply suggestion from @sanmai
2026-06-15 09:58:42 +03:00
Georgi Gerganov 272088b9f2 metal : add repeat bf16 (#24638) 2026-06-15 09:57:16 +03:00
leonardHONG 3686e9d643 CUDA: only support F32/F16 for GGML_OP_REPEAT (#24533) 2026-06-15 09:11:00 +03:00
Masashi Yoshimura 6e9007ae61 ggml-webgpu: improve i-quants mul_mat performance and speed up prefill (#24530)
* Improve prefill speeds for i-quants

* Fix #if defined() usage in preprocessor guards.
2026-06-14 18:15:30 -07:00
Jeff Bolz 1a7718b4c5 vulkan: support non-contig unary/glu ops (#24215)
* vulkan: support non-contig unary/glu ops

Change unary/glu ops to pass in all strides and use fastdiv for the index
calculation. Put all unary ops in one file, similar to glu, to share the
code. codex went ahead and added expm1 without me asking, but I had to
make it do a real precision analysis rather than just making stuff up.

unary.comp initially couldn't use generic_unary_head because there wasn't
space for xielu's additional constants. Fixing this required packing the
fastdiv 'L' values.

* attempt to workaround compiler bug

* resolve conflict from #23991

* use expm1
2026-06-13 08:44:15 -05:00
Ruben Ortlam 3e7bd4f39a vulkan: add pipeline barriers for memcpy read operations (#23770)
* vulkan: add pipeline barriers for memcpy read/write operations

* remove unnecessary host write pipeline barriers
2026-06-12 16:43:50 +02:00
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
shaofeiqi ba1df050f3 opencl: add q5_0/q5_1 gemm and gemv kernels for Adreno (#24319)
* opencl: add q5_0 adreno support

* opencl: add q5_1 adreno support

* opencl: cosmetic fix

---------

Co-authored-by: Li He <lih@qti.qualcomm.com>
2026-06-11 21:43:09 -07:00
Jeff Bolz 4c6595503f vulkan: ifdef eMesaHoneykrisp (build fix) (#24479)
Fixes build/CI after #24306.
2026-06-11 13:22:17 -05:00
Winston Ma fdc3db9b65 vulkan: add fast path for contiguous buffer transfers (#23973) 2026-06-11 15:46:25 +02:00
Kevin Liu 1af154a76f vulkan: use medium matmul tile on Asahi Linux (#24306)
* vulkan: use medium matmul tile on Asahi Linux

* vulkan: switch Apple detection to Honeykrisp driver id
2026-06-11 15:43:04 +02:00
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
Oliver Simons fb83cc9a07 CUDA: Fix ssm_scan_f32 data-races (#24360)
* Add missing syncthreads before resuing cub_temp_storage

__syncthreads() is required before being allowed to resue TempStorage
smem:
https://nvidia.github.io/cccl/unstable/cub/api/classcub_1_1BlockLoad.html#_CPPv4I0EN3cub9BlockLoad4LoadEv20RandomAccessIteratorRA14ItemsPerThread_1Ti

* Add one more missing __syncthreads

Could also double-buffer, but alternative is to simply ensure all
threads have read smem* before writing to it again in the next loop
iteration

* Remove unused smem from ssm_scan_f32
2026-06-10 14:27:08 +02:00
Jeff Bolz d6d0ce8215 vulkan: reduce iq1 shared memory usage for mul_mm (#24287) 2026-06-09 13:27:38 +02:00
Ruben Ortlam b4e3dc613b vulkan: add v_dot2_f32_f16 support in matrix-matrix multiplication and Flash Attention (#24123)
* vulkan: add support for valve fp16 dot2 extension

* use macro for dot2 path choice

* properly check for the feature

* add dot_product abstraction to reduce preprocessor branching
2026-06-09 13:27:04 +02:00
Pascal 26021699bc ggml : add GGML_OP_COL2IM_1D (#24206)
* cpu: add GGML_OP_COL2IM_1D

Add the overlap-add (scatter-add) step of a 1D transposed convolution.
A ConvTranspose1d factorizes as a GEMM followed by col2im: a weight
pre-permuted to [IC, K*OC] is contracted against the [IC, T_in] input
with mul_mat to produce a column matrix [K*OC, T_in], and col2im_1d
scatters those columns back into the [T_out, OC] signal, with
T_out = (T_in - 1)*s0 + K - 2*p0.

Keeping the contraction as a plain mul_mat leaves the heavy work on the
optimized (and quantizable) matmul kernels, so col2im_1d only does the
cheap overlap-add.

CPU uses a gather formulation parallelized over output channels,
supporting F32, F16 and BF16 with an F32 accumulator.

* tests: add backend coverage for GGML_OP_COL2IM_1D

Add test_col2im_1d next to the conv_transpose_1d cases, covering F32,
F16 and BF16 across eight geometries: the canonical kernel = 2*stride
DAC upsampling shape, overlap, no overlap, cropping (p0 = 1 and
p0 = stride/2), kernel < stride with zeroed gaps, kernel not a
multiple of stride, and a single column unfold.

Perf mode gets three real vocoder stage shapes reporting memory
bandwidth. max_nmse_err relaxes to 5e-4 for F16 and BF16.

* cpu: harden GGML_OP_COL2IM_1D

ggml_col2im_1d validates s0, oc, p0 and input contiguity at graph
build time, before the oc division, protecting every backend at once.
The kernel asserts the contiguity its flat indexing assumes and its
doc states the full output length including the crop term.

The kernel parallelizes over the time axis: the split stays balanced
down to OC = 1, where the previous channel split was single threaded.
Values are bit identical on the three real vocoder chains, two out of
three improve.

* tests: extend the GGML_OP_COL2IM_1D grid

The eval grid grows to eleven geometries: OC = 1 (mono output stage),
K = 1 with stride > 1 (sparse scatter, every gap position zeroed) and
a crop down to T_out = 2 where all the gather bounds act at once.

* tests: add col2im_1d equivalence test

tests/test-col2im-1d.cpp proves mul_mat + col2im_1d matches the
native ggml_conv_transpose_1d on the CPU backend, F32 bit exact, F16
and BF16 through casts of the column matrix. test-backend-ops cannot
cover this for a CPU only op since the CPU backend is its own
reference there.

* rpc: bump protocol patch version for GGML_OP_COL2IM_1D

GGML_OP_COUNT goes from 96 to 97 with the new op, which trips the
static_assert in ggml-rpc.h. Bump RPC_PROTO_PATCH_VERSION since the
op is appended and no existing op code shifts.
2026-06-09 12:01:37 +03:00
Yash Raj Pandey fd3271e0b4 ggml-cpu : fix rms_norm_back wrong output under in-place aliasing (#24305)
* ggml-cpu : fix rms_norm_back wrong output under in-place aliasing

* cont : clean-up comment

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
2026-06-09 10:24:27 +03:00
ravel7524 e3471b3e73 Remove case for GGML_TYPE_Q4_K in mvvq.cu (#23528) 2026-06-09 07:46:23 +02:00