Remove hmp from config and README (#1)

- Remove hmp from config and README (82c4ed4da8fce1b0b79a45e1d9cedfeb0a150fbf)
- Update README.md (90387c976d1727ecf2195569f34cca9b830ddb7b)


Co-authored-by: Jan Wieczorek <jwieczorekhabana@users.noreply.huggingface.co>

README.md

@@ -13,18 +13,15 @@ This model only contains the `GaudiConfig` file for running the [bert-base-uncas
 **This model contains no model weights, only a GaudiConfig.**
 
 This enables to specify:
-- `use_habana_mixed_precision`: whether to use Habana Mixed Precision (HMP)
-    - `hmp_opt_level`: optimization level for HMP, see [here](https://docs.habana.ai/en/latest/PyTorch/PyTorch_Mixed_Precision/PT_Mixed_Precision.html#configuration-options) for a detailed explanation
-    - `hmp_bf16_ops`: list of operators that should run in bf16
-    - `hmp_fp32_ops`: list of operators that should run in fp32
-    - `hmp_is_verbose`: verbosity
 - `use_fused_adam`: whether to use Habana's custom AdamW implementation
 - `use_fused_clip_norm`: whether to use Habana's fused gradient norm clipping operator
+- `use_torch_autocast`: whether to use Torch Autocast for managing mixed precision
 
 ## Usage
 
 The model is instantiated the same way as in the Transformers library.
-The only difference is that there are a few new training arguments specific to HPUs.
+The only difference is that there are a few new training arguments specific to HPUs.\
+It is strongly recommended to train this model doing bf16 mixed-precision training for optimal performance and accuracy.
 
 [Here](https://github.com/huggingface/optimum-habana/blob/main/examples/question-answering/run_qa.py) is a question-answering example script to fine-tune a model on SQuAD. You can run it with BERT with the following command:
 ```bash
@@ -42,7 +39,8 @@ python run_qa.py \
   --output_dir /tmp/squad/ \
   --use_habana \
   --use_lazy_mode \
-  --throughput_warmup_steps 2
+  --throughput_warmup_steps 2 \
+  --bf16
 ```
 
 Check the [documentation](https://huggingface.co/docs/optimum/habana/index) out for more advanced usage and examples. 

gaudi_config.json

@@ -1,28 +1,5 @@
 {
-  "use_habana_mixed_precision": true,
-  "hmp_is_verbose": false,
   "use_fused_adam": true,
   "use_fused_clip_norm": true,
-  "hmp_bf16_ops": [
-    "add",
-    "addmm",
-    "bmm",
-    "div",
-    "dropout",
-    "gelu",
-    "iadd",
-    "linear",
-    "layer_norm",
-    "matmul",
-    "mm",
-    "rsub",
-    "softmax",
-    "truediv"
-  ],
-  "hmp_fp32_ops": [
-    "embedding",
-    "nll_loss",
-    "log_softmax",
-    "cross_entropy"
-  ]
+  "use_torch_autocast": true
 }