gemma.cpp/util
Jan Wassenberg 301dc8067a Major MatMul update, 1.9-2.3x speedup on Zen4 via bf16 mul
Supports converting all weight/activation formats to native MulT (bf16/f32)

Also:
- ConstMat/MutableMat for const correctness
- Move RowVectorBatch to allocator.h so it can be used from Matmul
- Add matmul.h so MatMulEnv can be used from Activations
- Remove kMaxThreads, detect from PerClusterPools
- Build fix: -inl.h files must be textual_hdrs, and highway.h should precede -inl.h

```
zen4 new
64, 24576, 3072, add=0, MatTA=bf16, MatTB=sfp:   616.6 GFLOPS.
64, 3072, 24576, add=0, MatTA=bf16, MatTB=sfp:   460.7 GFLOPS.
64, 24576, 3072, add=0, MatTA=f32, MatTB=sfp:    598.6 GFLOPS.
64, 3072, 24576, add=0, MatTA=f32, MatTB=sfp:    435.6 GFLOPS.

zen4 old
64, 24576, 3072, add=0, MatTA=f32, MatTB=sfp:    257.5 GFLOPS.
64, 3072, 24576, add=0, MatTA=f32, MatTB=sfp:    231.9 GFLOPS.
```

PiperOrigin-RevId: 663729812
2024-08-16 07:52:20 -07:00
..
allocator.h Major MatMul update, 1.9-2.3x speedup on Zen4 via bf16 mul 2024-08-16 07:52:20 -07:00
app.h Add pin flag to disable pinning. Refs #338 2024-08-09 13:47:12 -07:00
args.h Lint fix - string append, remove stale TODO 2024-07-08 04:11:21 -07:00
threading.h Major MatMul update, 1.9-2.3x speedup on Zen4 via bf16 mul 2024-08-16 07:52:20 -07:00