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Sync master with upstream release b8783#485

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jan-service-account merged 13 commits intodevfrom
update-dev-from-master-2026-04-14-00-57
Apr 14, 2026
Merged

Sync master with upstream release b8783#485
jan-service-account merged 13 commits intodevfrom
update-dev-from-master-2026-04-14-00-57

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Updates dev branch with latest release (b8783) from ggml-org/llama.cpp

qnixsynapse and others added 13 commits April 13, 2026 09:44
* Add MCP Connection diagnostics and CORS hint to web-ui

* tidy up test

* webui: Refactor and improve MCP diagnostic logging

---------

Co-authored-by: evalstate <1936278+evalstate@users.noreply.github.com>
* webui: add setting for first-line chat titles

Add an opt-in setting (`titleGenerationUseFirstLine`) to use the first
non-empty line of a prompt as the generated conversation title.

Previously, the complete multi-line prompt was being used, which created
long titles for complex queries. Coupled with
"Ask for confirmation before changing conversation title", the dialog
would overflow.

* Update tools/server/webui/src/lib/utils/text.ts

Co-authored-by: Aleksander Grygier <aleksander.grygier@gmail.com>

* Update tools/server/webui/src/lib/utils/text.ts

Co-authored-by: Aleksander Grygier <aleksander.grygier@gmail.com>

* webui: Run build to update the bundle

As requested in:
ggml-org#21797 (review)

* webui: Fix missing import for NEWLINE_SEPARATOR

---------

Co-authored-by: Aleksander Grygier <aleksander.grygier@gmail.com>
* CUDA: Limit DeviceSegmentedSort to immediate mode

DeviceSegmentedSort is currently not capturable in a cuda graph. Hence,
we have to go for the slower DeviceSegmentedRadixSort in that case.

Perf numbers on RTX Pro 6000 Blackwell Max-Q:
DeviceSegmentedRadixSort in graph mode (i.e. CUDA Graphs)

  ARGSORT(type=f32,ne=[2048,512,1,1],order=1):                 12291 runs -   105.94 us/run -     8192 kB/run -   73.75 GB/s
  ARGSORT(type=f32,ne=[4096,512,1,1],order=1):                 10245 runs -   115.08 us/run -    16384 kB/run -  135.77 GB/s
  ARGSORT(type=f32,ne=[8192,512,1,1],order=1):                  5125 runs -   221.22 us/run -    32768 kB/run -  141.26 GB/s
  ARGSORT(type=f32,ne=[16384,512,1,1],order=1):                 2565 runs -   430.98 us/run -    65536 kB/run -  145.02 GB/s
  ARGSORT(type=f32,ne=[32768,512,1,1],order=1):                 1028 runs -  1185.83 us/run -   131072 kB/run -  105.41 GB/s
  ARGSORT(type=f32,ne=[65536,512,1,1],order=1):                  387 runs -  2748.62 us/run -   262144 kB/run -   90.95 GB/s

DeviceSegmentedSort in immediate mode

  ARGSORT(type=f32,ne=[2048,512,1,1],order=1):                 16388 runs -    71.17 us/run -     8192 kB/run -  109.78 GB/s
  ARGSORT(type=f32,ne=[4096,512,1,1],order=1):                 12294 runs -    81.38 us/run -    16384 kB/run -  192.00 GB/s
  ARGSORT(type=f32,ne=[8192,512,1,1],order=1):                  5125 runs -   240.81 us/run -    32768 kB/run -  129.77 GB/s
  ARGSORT(type=f32,ne=[16384,512,1,1],order=1):                 2565 runs -   406.60 us/run -    65536 kB/run -  153.71 GB/s
  ARGSORT(type=f32,ne=[32768,512,1,1],order=1):                 1285 runs -   873.23 us/run -   131072 kB/run -  143.15 GB/s
  ARGSORT(type=f32,ne=[65536,512,1,1],order=1):                  516 runs -  2288.46 us/run -   262144 kB/run -  109.24 GB/s

* Add test case for dispatch to DeviceSegmentedRadixSort

We currently lack a way to force graph mode in CUDA, patch callback to
invoke ggml_backend_compare_graph_backend twice to enforce each test to
run in graph mode
)

Signed-off-by: Adrien Gallouët <angt@huggingface.co>
…20797)

* use integer dot product for quantized KV flash attention

* small improvements

* fix SHMEM_STAGING indexing

* add missing KV type quants

* fixes

* add supported quants to FA tests

* readd fast paths for <8bit quants

* fix mmq gate and shmem checks
* docs: listing qwen3-asr and qwen3-omni as supported

* nits
@jan-service-account jan-service-account merged commit 5282e8d into dev Apr 14, 2026
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@jan-service-account jan-service-account deleted the update-dev-from-master-2026-04-14-00-57 branch April 14, 2026 01:26
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