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llm: use host Vulkan loader on Windows (#16869)

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Stop bundling the Vulkan loader and resolve the host runtime for Windows Vulkan discovery and backend dependency loading.

Fixes #16677
This commit is contained in:
Daniel Hiltgen
2026-06-24 10:35:48 -07:00
committed by GitHub
parent 33878e671a
commit 89a171cc70
3 changed files with 51 additions and 89 deletions
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20
llama/server/CMakeLists.txt
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@@ -501,26 +501,6 @@ if(OLLAMA_RUNNER_DIR)
RUNTIME DESTINATION "${_base_dest}/${OLLAMA_RUNNER_DIR}" COMPONENT llama-server
LIBRARY DESTINATION "${_base_dest}/${OLLAMA_RUNNER_DIR}" COMPONENT llama-server
)
if(WIN32)
# Bundle the system Vulkan loader, not an arbitrary SDK copy.
# The loader is supplied by the installed Vulkan runtime or
# GPU driver; using that copy avoids PATH-dependent SDK drift.
if(DEFINED ENV{SystemRoot})
file(TO_CMAKE_PATH "$ENV{SystemRoot}" _ollama_windows_root)
else()
set(_ollama_windows_root "C:/Windows")
endif()
find_file(_vulkan_loader_dll
NAMES vulkan-1.dll
HINTS "${_ollama_windows_root}/System32"
NO_DEFAULT_PATH)
if(NOT _vulkan_loader_dll)
message(FATAL_ERROR "Could not find vulkan-1.dll in the Windows Vulkan runtime. Install the Vulkan runtime from the GPU driver or VULKAN_SDK/Helpers/VulkanRT.exe.")
endif()
install(FILES "${_vulkan_loader_dll}"
DESTINATION "${_base_dest}/${OLLAMA_RUNNER_DIR}"
COMPONENT llama-server)
endif()
endif()
endif()
else()