Adding simple example of using debug_printf by eokeeffe · Pull Request #447 · KomputeProject/kompute

eokeeffe · 2026-01-21T13:13:52Z

Relatively simple example of using the debug_printf function in the Vulkan GLSL shader code.

I've got a medium article explaining more on how to set everything up and running the example.

Any issues, let me know and I'll get on it when I can

axsaucedo

Added comments to review

examples/vulkan_ext_printf/src/main.cpp

examples/vulkan_ext_printf/README.md

eokeeffe · 2026-02-03T11:07:26Z

I've added in the details you requested. If the README.md needs more information I'm happy to add, only that some parts need images to further explain the setup for the debug extension activation. I tried myself using just the environmental exports but that failed, I used the vkconfig-gui and that worked first time for me at least on my current setup.

Once this is through I'm happy to start adding in some more examples I've made of the last few months.

Thanks again!

examples/vulkan_ext_printf/README.md

axsaucedo

LGTM

Blog post looks great! Thank you for the contribution!

axsaucedo · 2026-02-03T13:05:57Z

We need to ensure the DCO is configured - if you update we can merge

examples/vulkan_ext_printf/README.md

axsaucedo · 2026-02-03T18:08:21Z

oK looks good. I have tried to do the DCO but didnt work, can you do it? We can then merge

* add datatype enum to python module Signed-off-by: koubaa <koubaa@github.com> * add datatype enum to python module Signed-off-by: koubaa <koubaa@github.com> * add doc Signed-off-by: koubaa <koubaa@github.com> --------- Signed-off-by: koubaa <koubaa@github.com> Co-authored-by: koubaa <koubaa@github.com> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

…own KomputeProject#44 (KomputeProject#411) * Sequence con/destructor is noexcept Signed-off-by: Andrea Calabrese <andrea.calabrese@amarulasolutions.com> Signed-off-by: Andrea Calabrese <andrea1995.c@live.com> * Operations are noexcept Signed-off-by: Andrea Calabrese <andrea.calabrese@amarulasolutions.com> Signed-off-by: Andrea Calabrese <andrea1995.c@live.com> * Algorithm is noexcept Signed-off-by: Andrea Calabrese <andrea.calabrese@amarulasolutions.com> Signed-off-by: Andrea Calabrese <andrea1995.c@live.com> --------- Signed-off-by: Andrea Calabrese <andrea.calabrese@amarulasolutions.com> Signed-off-by: Andrea Calabrese <andrea1995.c@live.com> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

* Operations are non-copy As for Issue KomputeProject#20, operations should be non-copy. Instead of creating a base NonCopyable class, I prefer to keep this inside the classes themselves, so that we do not create new inherited structures. Signed-off-by: Andrea Calabrese <andrea.calabrese@amarulasolutions.com> Signed-off-by: Andrea Calabrese <andrea1995.c@live.com> * Make Algorithm uncopyable Same as previous commit Signed-off-by: Andrea Calabrese <andrea.calabrese@amarulasolutions.com> Signed-off-by: Andrea Calabrese <andrea1995.c@live.com> * Image is non-copy Signed-off-by: Andrea Calabrese <andrea.calabrese@amarulasolutions.com> Signed-off-by: Andrea Calabrese <andrea1995.c@live.com> * Manager is non-copy Signed-off-by: Andrea Calabrese <andrea.calabrese@amarulasolutions.com> Signed-off-by: Andrea Calabrese <andrea1995.c@live.com> * Memory is non-copy Signed-off-by: Andrea Calabrese <andrea.calabrese@amarulasolutions.com> Signed-off-by: Andrea Calabrese <andrea1995.c@live.com> * Sequence is non-copy Signed-off-by: Andrea Calabrese <andrea.calabrese@amarulasolutions.com> Signed-off-by: Andrea Calabrese <andrea1995.c@live.com> * Tensor is non-copy Signed-off-by: Andrea Calabrese <andrea.calabrese@amarulasolutions.com> Signed-off-by: Andrea Calabrese <andrea1995.c@live.com> --------- Signed-off-by: Andrea Calabrese <andrea.calabrese@amarulasolutions.com> Signed-off-by: Andrea Calabrese <andrea1995.c@live.com> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

* Added guard for vk 1.4 headers Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> * CI test for 1.4 compatibility Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> CI test for 1.4 compatibility Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> CI test for 1.4 compatibility Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> CI test for 1.4 compatibility Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> CI test for 1.4 compatibility Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> CI test for 1.4 compatibility Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> Updated cast to match vk namespace Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> Updated cast to match vk namespace Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> * Updated debugMessageCallback func to vk:: ns Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> * Updated debugMessageCallback func to vk:: ns Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> --------- Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Change VKAPI_PTR to VKAPI_ATTR Tested only on: MSVC version: `Microsoft (R) C/C++ Optimizing Compiler Version 19.43.34808 for x86` VulkanSDK version: 1.4.309.0 Latest kompute commit: 299b11f Signed-off-by: jamorphy <maps@jax2.net> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Signed-off-by: zlaazlaa <2889827787@qq.com> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

…aces (KomputeProject#419) * Update bin2h.cmake to avoid -Werror=missing-braces Signed-off-by: zachferguson <zach.ferguson@clo3d.com> Signed-off-by: Zachary Ferguson <zach.ferguson@clo3d.com> * Use the fmt inside spdlog if using spdlog Signed-off-by: zachferguson <zach.ferguson@clo3d.com> Signed-off-by: Zachary Ferguson <zach.ferguson@clo3d.com> * Fix python build by linking fmt when KOMPUTE_OPT_LOG_LEVEL_DISABLED Signed-off-by: Zachary Ferguson <zach.ferguson@clo3d.com> --------- Signed-off-by: zachferguson <zach.ferguson@clo3d.com> Signed-off-by: Zachary Ferguson <zach.ferguson@clo3d.com> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

…Project#424) * Add eDeviceAndHost to Python bindings for MemoryTypes. Update docstrings so that the build works. Signed-off-by: Robert Quill <robert.quill@imgtec.com> * Typo fix Signed-off-by: Robert Quill <robert.quill@imgtec.com> --------- Signed-off-by: Robert Quill <robert.quill@imgtec.com> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Signed-off-by: zlaazlaa <2889827787@qq.com> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

* Fix push const inconsistent type bug Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> * Fix push const bug Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> * Added test to consts Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> * Added tests for const types@ Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> * Added test to consts Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> * Added test to consts Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> * Added test to consts Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> --------- Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

* feat: Add utility function to compile GLSL source to SPIR-V Signed-off-by: n-jay <nuwanjayawardene@gmail.com> * refactor: Replace kp.Shader.compile_source with utility function compile_source Signed-off-by: n-jay <nuwanjayawardene@gmail.com> --------- Signed-off-by: n-jay <nuwanjayawardene@gmail.com> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Signed-off-by: Matthias Möller <m_moeller@live.de> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

…t#440) Previously the Python array would just be filled with the first element of the data repeated to fill the array. Fixes a number of the Python tests. Signed-off-by: Robert Quill <robert.quill@imgtec.com> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Updated description for llama.cpp to indicate it is now decommissioned. Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

* checks if given family queue has compute capability Signed-off-by: Matthias Möller <m_moeller@live.de> * test will search for queues with compute capabilities Signed-off-by: Matthias Möller <m_moeller@live.de> --------- Signed-off-by: Matthias Möller <m_moeller@live.de> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

…#449) spdlog is not build when the CMake option "KOMPUTE_OPT_USE_BUILT_IN_SPDLOG" is set to false. When activating spdlog for logging via CMake option "KOMPUTE_OPT_USE_SPDLOG", CMake will deliver an error, as the current CMake file tries to add a definition to the spdlog target. Defining the compiler definition "SPDLOG_ACTIVE_LEVEL" has no effect on spdlog itself, it just has an effect on spdlog target consumers. Therefore, it can be removed so that the project can be build with the mentioned CMake options. Signed-off-by: Matthias Möller <m_moeller@live.de> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

eokeeffe force-pushed the master branch from e64eaba to 586a1b3 Compare January 21, 2026 13:37

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eokeeffe force-pushed the master branch from 6bf022c to 1c91eb6 Compare February 3, 2026 14:30

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koubaa and others added 18 commits February 4, 2026 10:36

Fix noexcept missing from OpMemoryBarrier (KomputeProject#413)

fcf0f34

Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Fix compile error in android (KomputeProject#423)

63b84b3

Signed-off-by: zlaazlaa <2889827787@qq.com> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

feat: Add log library linking to Android build (KomputeProject#428)

1304c0f

Signed-off-by: zlaazlaa <2889827787@qq.com> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

update internal gtest to v1.17.0 (KomputeProject#437)

77a0a0d

Signed-off-by: Matthias Möller <m_moeller@live.de> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Updated to pybind 3.0.0 (KomputeProject#431)

ad03e3b

Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Clarify status of llama.cpp in README (KomputeProject#446)

38a1a81

Updated description for llama.cpp to indicate it is now decommissioned. Signed-off-by: Alejandro Saucedo <alejandro.saucedo@zalando.de> Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

adding kompute example using debug printf

7f1edae

Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

adding link to the draft article

67a0a84

Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

evanokeeffe and others added 9 commits February 4, 2026 10:36

Updating the readme for the debug statement example

9cc8eca

Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Adding in the example shader, gitignore targets it so needed to force in

d2e316b

Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Modifying the comment to include bytes in the comment on message length

2d69587

Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Correcting the readme for spelling mistakes in vulkan_ext_printf

1030b8b

Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

adding kompute example using debug printf

958a55e

Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

adding link to the draft article

fb328f7

Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

Updating the readme for the debug statement example

4d5f5b1

Signed-off-by: evanokeeffe <evan.okeeffe@tas-2.com>

eokeeffe force-pushed the master branch from 81217c3 to 4d5f5b1 Compare February 4, 2026 10:42

Merge branch 'master' into master

466aaed

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Adding simple example of using debug_printf#447

Adding simple example of using debug_printf#447
eokeeffe wants to merge 28 commits intoKomputeProject:masterfrom
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