added core_array code and activation function code #684

	name: Basic Pytorch Installation, Data Prep, CPU Training, CPU Inference
	on: [push, pull_request]
	jobs:
	Install-Dependencies_Data-Prep_CPU-Training_CPU-Inference:
	runs-on: ubuntu-latest
	steps:
	- name: Check out repository code
	uses: actions/checkout@v4
	- run: echo "${{ github.repository }} repository has been cloned to the runner."
	- run: echo "Currently on ${{ github.ref }} branch"
	- name: ls of directory
	run: \|
	ls ${{ github.workspace }}
	# Caching pip dependencies
	- name: Cache pip dependencies
	uses: actions/cache@v3
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements_cpu.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-
	- name: Install CPU Dependencies
	run: \|
	python3 -m pip install --upgrade pip
	python3 -m pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cpu
	python3 -m pip install numpy transformers datasets tiktoken wandb tqdm tensorboard
	python3 -m pip install -r requirements_cpu.txt
	- name: Run Small Network on CPU
	run: \|
	python3 data/shakespeare_char/prepare.py
	python3 train.py --out_dir=out --device=cpu --eval_interval=2 --log_interval=1 --block_size=2 --batch_size=2 --n_layer=2 --n_head=2 --n_kv_group=2 --n_embd=16 --max_iters=3 --lr_decay_iters=2 --dropout=0.0
	- name: Run CPU Inference
	run: \|
	python3 sample.py --device=cpu --out_dir="out"

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