f58522fc10
This change makes it so only kernels of the same vendor are compiled in parallel. For example for the release builds it will be: 1. All CUDA kernels 2. All OptiX kernels 3. All HIP kernels 4. All OneAPI kernels This potentially leads to a lower CPU utilization, but it makes it much easier to manage memory usage and tweak per-vendor concurrency. The goal of this change is to solve occasional out-of-memory during the GPU kernels compilation step on the CI/CD farm. This change also includes tweaks to the prallel jobs for HIP-RT and oneAPI. The tweak is based on measuring apparent memory usage peak on Linux when doing single-thread compilation, and giving some safe margin from the available memory on the buildbot. Pull Request: https://projects.blender.org/blender/blender/pulls/129945
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