RDNA2 has native kernels for K's layers only; L's and M's test frames still
compiled their transformer layers with emulated matrix products for most of
an hour. The builder now builds e, f, k, k-ldr on gfx103x (detected like the
native kernels: D4R_GPU_ARCH, else the KFD node with the most SIMDs);
D4R_ENGINE_ALL_MODELS=1 builds L and M anyway. install.sh takes the model
list from build-engine-models.sh --list-sr-models and keys the shared cache
on it.
Models build in alphabetical order (E, F, K, L, M). The first frame renders
alone to create the Proton prefix; the rest render at the same time, each
model built as soon as its frame is done (ZLUDA compiles in one thread per
process). Cold install.sh --yes on a Steam Deck: 185 s.