The presentations and video recordings from IWOCL 2026 are now available on the conference program page.

IWOCL 2026 brought together researchers and practitioners advancing OpenCL, SYCL, and heterogeneous computing. This year's program covered portability across GPU vendors, AI and LLM inference on OpenCL backends, safety-critical GPU programming, and much more.

Browse the full program, slides, and recordings: https://www.iwocl.org/iwocl-2026/conference-program/
#OpenCL #SYCL #HeterogeneousComputing #IWOCL #GPU

I published my notes on #OpenCL #OpenGL interop

https://mathr.co.uk/web/opencl-opengl-interop.html

so far focus is on writing to OpenGL textures from OpenCL kernels.

in my realworld test case this gives an overall improvement in total* runtime of about 10% vs downloading from OpenCL to CPU and reuploading to OpenGL

(* I did not subtract the cost of everything else the test case was doing (loading settings, running opencl kernels + opengl shaders, saving images), a microbenchmark of just the data transfer changes would show a much bigger improvement)

ICYMI: OCCT - 16.1.10 Update Notes

#AMD #Intel #Linux #LinuxGaming #NVIDIA #OCCT #OpenCL #PCGaming #Radeon #Vulkan

https://store.steampowered.com/news/app/3515100/view/528753960533622839

#FluidX3D #CFD v3.7 brings faster Q-criterion isosurface rendering with #OpenCL local memory optimization! 🖖🤠
https://github.com/ProjectPhysX/FluidX3D/releases/tag/v3.7

Instead of 32 velocities for each #GPU thread, now an 8x8x8 workgroup loads & reuses 11x11x11 velocities in L1$, a 12x VRAM BW reduction.

Fascinating insight: Which thread loads which cell from VRAM to L1$, and which thread renders which grid cell within the workgroup, can be very different!
https://github.com/ProjectPhysX/FluidX3D/blob/master/src/kernel.cpp#L2827-L2956

PS: plugged X-wing Gif in #GitHub preview 🖖😜

OpenCL 3.1 is here.

The Khronos Group has moved several capabilities into the core spec, including SPIR-V kernels, subgroups, and integer dot products.

Also includes improvements to the memory model and synchronization, plus better alignment with Vulkan via device UUID queries.

Implementations are already underway across major vendors and open source projects.

- Full Blog: https://www.khronos.org/blog/opencl-3.1-is-here?utm_medium=social&utm_source=mastodon&utm_campaign=OpenCL_3.1_is_here&utm_content=blog
- OpenCL specification GitHub
- Khronos Discord

#OpenCL #HPC #GPU #Compute #SPIRV

The OpenCL Working Group has published the first in a series of cooperative matrix extensions — and your feedback can help shape them before finalization.

cl_khr_cooperative_matrix brings cooperative matrix load, store, and multiply-add to OpenCL, developed with Arm, Intel, and Qualcomm. A companion OpenCL C language extension is also in RFC.

Review and comment:
🔗 Spec draft: https://github.com/KhronosGroup/OpenCL-Docs/pull/1533
🔗 Clang RFC: https://discourse.llvm.org/t/rfc-clang-frontend-changes-for-opencl-c-cooperative-matrix-extension/90148
🔗 Full blog: https://www.khronos.org/blog/opencl-cooperative-matrix-extensions-are-here
#OpenCL #SPIRV

IWOCL 2026 is next week!

Join the global OpenCL and SYCL community in Heilbronn, Germany (May 6–8) for the premier forum dedicated to open compute languages and heterogeneous platform programming. The program includes the latest technical talks, Khronos Working Group updates, application case studies, and ample opportunity to connect with peers across industry and academia.

Registration remains open: www.iwocl.org

See you there.
#IWOCL #OpenCL #SYCL #HPC #Heterogeneous #Compute