Fix fp8 quantization script. (#500)

# What does this PR do?

Fix fp8 quantization script.

## Test Plan

```
sh run_quantize_checkpoint.sh localhost fp8 /home/yll/fp8_test/ /home/yll/fp8_test/quantized_2 /home/yll/fp8_test/tokenizer.model 1 1
```

## Sources

Please link relevant resources if necessary.


## Before submitting

- [x] This PR fixes a typo or improves the docs (you can dismiss the
other checks if that's the case).
- [x] Ran pre-commit to handle lint / formatting issues.
- [x] Read the [contributor
guideline](https://github.com/meta-llama/llama-stack/blob/main/CONTRIBUTING.md),
      Pull Request section?
- [x] Updated relevant documentation.
- [x] Wrote necessary unit or integration tests.

Co-authored-by: Yunlu Li <yll@meta.com>

llama_stack/providers/inline/inference/meta_reference/quantization/scripts/quantize_checkpoint.py

@@ -22,12 +22,16 @@ from fairscale.nn.model_parallel.initialize import (
     initialize_model_parallel,
     model_parallel_is_initialized,
 )
-from fp8.fp8_impls import FfnQuantizeMode, quantize_fp8
 
-from llama.model import ModelArgs, Transformer, TransformerBlock
-from llama.tokenizer import Tokenizer
+from llama_models.llama3.api.args import ModelArgs
+from llama_models.llama3.api.tokenizer import Tokenizer
+from llama_models.llama3.reference_impl.model import Transformer, TransformerBlock
 from torch.nn.parameter import Parameter
 
+from llama_stack.providers.inline.inference.meta_reference.quantization.fp8_impls import (
+    quantize_fp8,
+)
+
 
 def main(
     ckpt_dir: str,
@@ -36,7 +40,6 @@ def main(
     max_seq_len: Optional[int] = 512,
     max_batch_size: Optional[int] = 4,
     model_parallel_size: Optional[int] = None,
-    ffn_quantize_mode: Optional[FfnQuantizeMode] = FfnQuantizeMode.FP8_ROWWISE,
     fp8_activation_scale_ub: Optional[float] = 1200.0,
     seed: int = 1,
 ):
@@ -112,7 +115,6 @@ def main(
                 fp8_weight = quantize_fp8(
                     block.feed_forward.w1.weight,
                     fp8_activation_scale_ub,
-                    ffn_quantize_mode,
                     output_device=torch.device("cpu"),
                 )
                 with torch.inference_mode():
@@ -124,7 +126,6 @@ def main(
                 fp8_weight = quantize_fp8(
                     block.feed_forward.w3.weight,
                     fp8_activation_scale_ub,
-                    ffn_quantize_mode,
                     output_device=torch.device("cpu"),
                 )
                 with torch.inference_mode():
@@ -136,7 +137,6 @@ def main(
                 fp8_weight = quantize_fp8(
                     block.feed_forward.w2.weight,
                     fp8_activation_scale_ub,
-                    ffn_quantize_mode,
                     output_device=torch.device("cpu"),
                 )
                 with torch.inference_mode():

llama_stack/providers/inline/inference/meta_reference/quantization/scripts/run_quantize_checkpoint.sh

@@ -9,7 +9,7 @@
 set -euo pipefail
 set -x
 
-cd $(git rev-parse --show-toplevel)
+cd $(dirname "$(realpath "$0")")
 
 MASTER_HOST=$1
 RUN_ID=$2
@@ -21,7 +21,7 @@ NPROC=$7
 
 echo $MASTER_HOST, $RUN_ID, $CKPT_DIR, $QUANT_CKPT_DIR
 
-NCCL_NET=Socket NCCL_SOCKET_IFNAME=eth TIKTOKEN_CACHE_DIR="" \
+NCCL_NET=Socket NCCL_SOCKET_IFNAME=eth TIKTOKEN_CACHE_DIR="" PYTHONPATH="/home/$USER/llama-models:/home/$USER/llama-stack" \
   torchrun \
    --nnodes=$NNODES --nproc_per_node=$NPROC \
    --rdzv_id=$RUN_ID \