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Fix fix for weight type define, refs #198 #216

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copybara-service merged 1 commit into from
Jun 7, 2024
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Fix fix for weight type define, refs #198 #216

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12 changes: 7 additions & 5 deletions README.md
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Expand Up @@ -151,13 +151,15 @@ cmake -B build

**or** if you downloaded bfloat16 weights (any model *without* `-sfp` in the
name), instead of running cmake with no options as above, run cmake with
GEMMA_WEIGHT_T set to [highway's](https://github.com/google/highway)
`hwy::bfloat16_t` type. We intend to soon support all weight types without
requiring compiler flags. Note that we recommend using `-sfp` weights instead of
bfloat16 for faster inference.
WEIGHT_TYPE set to [highway's](https://github.com/google/highway)
`hwy::bfloat16_t` type. Alternatively, you can also add
`-DGEMMA_WEIGHT_T=hwy::bfloat16_t` to the C++ compiler flags.

We intend to soon support all weight types without requiring extra flags. Note
that we recommend using `-sfp` weights instead of bfloat16 for faster inference.

```sh
cmake -B build -DGEMMA_WEIGHT_T=hwy::bfloat16_t
cmake -B build -DWEIGHT_TYPE=hwy::bfloat16_t
```

After running whichever of the above `cmake` invocations that is appropriate for
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