====== Ubuntu - GPU - Vulkan - Vulkan Try New Version ====== Vulkan applications interact with Vulkan drivers through the loader. * The loader is responsible for supporting multiple GPUs and their drivers. * For supporting the latest Vulkan API version, the loader also needs to be the matching version. More information about the loader is available here: [[https://github.com/KhronosGroup/Vulkan-Loader/blob/master/loader/LoaderAndLayerInterface.md|Vulkan Loader]] The upstream Vulkan loader source code is available in the following git repos: * [[https://github.com/KhronosGroup/Vulkan-Headers|Vulkan Headers]] * [[https://github.com/KhronosGroup/Vulkan-Loader|Vulkan Loader]] * [[https://github.com/KhronosGroup/Vulkan-Tools|Vulkan Tools]] ---- ==== Vulkan Validation Layers ==== The loader also supports the Vulkan validation layers, which are optional components that augment the Vulkan system. * Layers can intercept, evaluate, and modify existing Vulkan functions on their way from the application down to the hardware. * Layers are a critical component of developing correct Vulkan applications. * More information about the validation layers is available here: [[https://github.com/KhronosGroup/Vulkan-ValidationLayers|Vulkan Validation Layers]] ---- ===== Build the loader ===== sudo apt-get update && sudo apt-get install git build-essential libx11-xcb-dev libxkbcommon-dev libwayland-dev libxrandr-dev cmake git clone https://github.com/KhronosGroup/Vulkan-Loader.git cd Vulkan-Loader mkdir build cd build python ../scripts/update_deps.py cmake -C helper.cmake .. cmake --build . or for tests... cmake -D UPDATE_DEPS=ON -D BUILD_TESTS=ON .. cmake --build . ctest or for install... sudo apt-get update && sudo apt-get install git build-essential libx11-xcb-dev libxkbcommon-dev libwayland-dev libxrandr-dev cmake git clone https://github.com/KhronosGroup/Vulkan-Loader.git cd Vulkan-Loader && mkdir build && cd build python3 ../scripts/update_deps.py cmake -DCMAKE_BUILD_TYPE=Release -DVULKAN_HEADERS_INSTALL_DIR=$(pwd)/Vulkan-Headers/build/install .. make -j8 **NOTE:** Detailed instructions are available in [[https://github.com/KhronosGroup/Vulkan-Loader/blob/master/BUILD.md|Vulkan-Loader/BUILD.md]] * Optionally instead of the 2 last lines use this instead: cmake -C helper.cmake .. cmake --build . * **CMAKE_BUILD_TYPE**: can be **Release** or **Debug**. * **VULKAN_HEADERS_INSTALL_DIR**: the absolute path to a Vulkan-Headers install directory must be provided. * **CMAKE_INSTALL_PREFIX**: to customize the install location also modifies the loader search paths to include searching for layers in the specified install location. * The default value for CMAKE_INSTALL_PREFIX is /usr/local, which would be used if you do not specify CMAKE_INSTALL_PREFIX. * Setting CMAKE_INSTALL_PREFIX to /tmp/build causes the loader to search /tmp/build/etc/vulkan/explicit_layer.d and /tmp/build/share/vulkan/explicit_layer.d for the layer JSON files. * The loader also searches the "standard" system locations of /etc/vulkan/explicit_layer.d and /usr/share/vulkan/explicit_layer.d after searching the two locations under /tmp/build. * Then run make install as before, which will install the files in /tmp/build sudo make install ---- ====== Use the newly built loader ====== To use the newly built loader: export LD_LIBRARY_PATH=$(pwd)/loader ---- ===== Install (Optional) ===== The newly built loader can be installed to /usr/local/lib by running sudo make install Refresh the system loader search cache. sudo ldconfig ---- ===== Test ===== VK_ICD_FILENAMES=/home/peter/Downloads/0/a/Vulkan-Tools-main/build/icd/VkICD_mock_icd.json vulkaninfo --summary VK_ICD_FILENAMES=/home/peter/Downloads/0/a/Vulkan-Tools-main/build/icd/VkICD_mock_icd.json /home/peter/Downloads/0/a/Vulkan-Tools-main/build/vulkaninfo/vulkaninfo --summary VK_ICD_FILENAMES=/home/peter/Downloads/0/a/Vulkan-Tools-main/build/icd/VkICD_mock_icd.json /home/peter/Downloads/0/a/Vulkan-Tools-main/build/vulkaninfo/vulkaninfo | grep driver LD_LIBRARY_PATH=/home/peter/Downloads/0/a/Vulkan-Tools-main/build/Vulkan-Loader/build/loader/ VK_ICD_FILENAMES=/home/peter/Downloads/0/a/Vulkan-Tools-main/build/icd/VkICD_mock_icd.json /home/peter/Downloads/0/a/Vulkan-Tools-main/build/vulkaninfo/vulkaninfo --summary LD_LIBRARY_PATH=/home/peter/Downloads/0/a/Vulkan-Tools-main/build/Vulkan-Loader/build/loader/ VK_ICD_FILENAMES=/home/peter/Downloads/0/a/Vulkan-Tools-main/build/icd/VkICD_mock_icd.json /home/peter/Downloads/0/a/Vulkan-Tools-main/build/vulkaninfo/vulkaninfo --summary LD_LIBRARY_PATH=/home/peter/Downloads/0/a/Vulkan-Tools-main/build/Vulkan-Loader/build/loader/ vulkaninfo --summary LD_LIBRARY_PATH=/home/peter/Downloads/0/a/Vulkan-Tools-main/build/Vulkan-Loader/build/loader/ vulkaninfo | grep driver ---- ===== Test ===== A test suite for the Vulkan loader. ctest returns: Test project /home/peter/Downloads/0/a/Vulkan-Loader-main/build Start 1: Allocation.Instance 1/538 Test #1: Allocation.Instance ............................................................................. Passed 0.01 sec Start 2: Allocation.GetInstanceProcAddr 2/538 Test #2: Allocation.GetInstanceProcAddr .................................................................. Passed 0.01 sec Start 3: Allocation.EnumeratePhysicalDevices 3/538 Test #3: Allocation.EnumeratePhysicalDevices ............................................................. Passed 0.01 sec Start 4: Allocation.InstanceAndDevice 4/538 Test #4: Allocation.InstanceAndDevice .................................................................... Passed 0.01 sec Start 5: Allocation.InstanceButNotDevice 5/538 Test #5: Allocation.InstanceButNotDevice ................................................................. Passed 0.01 sec Start 6: Allocation.DeviceButNotInstance ... ... 100% tests passed, 0 tests failed out of 538 Total Test time (real) = 10.89 sec ---- ===== References ===== https://developer.nvidia.com/embedded/vulkan https://github.com/KhronosGroup/Vulkan-Headers https://github.com/KhronosGroup/Vulkan-Loader https://github.com/KhronosGroup/Vulkan-Tools https://github.com/KhronosGroup/Vulkan-Loader/blob/main/loader/LoaderAndLayerInterface.md https://github.com/KhronosGroup/Vulkan-Loader/blob/main/docs/LoaderInterfaceArchitecture.md https://github.com/KhronosGroup/Vulkan-Loader/blob/master/BUILD.md https://github.com/KhronosGroup/Vulkan-ValidationLayers https://www.khronos.org/conformance/adopters/conformant-products