With Apple's help I cut Metal kernel launch overhead under 50us using MTLSharedEvent and double-buffered encoding, then had to unbreak CUDA.
Evan Mezeske
May 2025
Applying Apple's NDA guidance to the GPU spin loop, serializing its kernels with MTLEvent, and deduplicating it across processes via shared memory.
On macOS the 3D graphics interfere with GPU audio even when nothing is drawn, so I'm starting the Filament port to rule out Apple's OpenGL.
Sep 2024
The OpenCL kernel now compiles and runs under Metal via macros and passes the golden tests, though the rough port still leaks memory everywhere.
Split the simulator into a shared base with OpenCL and Metal children. Macros may let the same kernel source compile for OpenCL, Metal, and CUDA.
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