Use lm-evaluation-harness from PyPI instead of our submodule

Author: tridao

3rdparty/lm-evaluation-harness

@@ -101,23 +101,20 @@ Performance is expected to be comparable or better than other architectures trai
 
 To run zero-shot evaluations of models (corresponding to Table 3 of the paper),
 we use the
-[lm-evaluation-harness](https://github.com/EleutherAI/lm-evaluation-harness/tree/big-refactor)
+[lm-evaluation-harness](https://github.com/EleutherAI/lm-evaluation-harness)
 library.
 
-1. Pull the `lm-evaluation-harness` repo by `git submodule update --init
-   --recursive`. We use the `big-refactor` branch.
-2. Install `lm-evaluation-harness`: `pip install -e 3rdparty/lm-evaluation-harness`.
-On Python 3.10 you might need to manually install the latest version of `promptsource`: `pip install git+https://github.com/bigscience-workshop/promptsource.git`.
-3. Run evaluation with (more documentation at the [lm-evaluation-harness](https://github.com/EleutherAI/lm-evaluation-harness/tree/big-refactor) repo):
+1. Install `lm-evaluation-harness` by `pip install lm-eval==0.4.2`.
+2. Run evaluation with (more documentation at the [lm-evaluation-harness](https://github.com/EleutherAI/lm-evaluation-harness/tree/big-refactor) repo):
 ```
-python evals/lm_harness_eval.py --model mamba --model_args pretrained=state-spaces/mamba-130m --tasks lambada_openai,hellaswag,piqa,arc_easy,arc_challenge,winogrande --device cuda --batch_size 64
+lm_eval --model mamba_ssm --model_args pretrained=state-spaces/mamba-130m --tasks lambada_openai,hellaswag,piqa,arc_easy,arc_challenge,winogrande,openbookqa --device cuda --batch_size 256
 python evals/lm_harness_eval.py --model hf --model_args pretrained=EleutherAI/pythia-160m --tasks lambada_openai,hellaswag,piqa,arc_easy,arc_challenge,winogrande --device cuda --batch_size 64
 ```
 
 To reproduce the results on the `mamba-2.8b-slimpj` model reported in the blogposts:
 ```
-python evals/lm_harness_eval.py --model mamba --model_args pretrained=state-spaces/mamba-2.8b-slimpj --tasks boolq,piqa,hellaswag,winogrande,arc_easy,arc_challenge,openbookqa,race,truthfulqa_mc2 --device cuda --batch_size 64
-python evals/lm_harness_eval.py --model mamba --model_args pretrained=state-spaces/mamba-2.8b-slimpj --tasks mmlu --num_fewshot 5 --device cuda --batch_size 64
+lm_eval --model mamba_ssm --model_args pretrained=state-spaces/mamba-2.8b-slimpj --tasks boolq,piqa,hellaswag,winogrande,arc_easy,arc_challenge,openbookqa,race,truthfulqa_mc2 --device cuda --batch_size 256
+lm_eval --model mamba_ssm --model_args pretrained=state-spaces/mamba-2.8b-slimpj --tasks mmlu --num_fewshot 5 --device cuda --batch_size 256
 ```
 
 Note that the result of each task might differ from reported values by 0.1-0.3 due to noise in the evaluation process.