Refactor the metal backend to always reuse command encoders/buffers unless a shared memory access is requested #2648

	name: CI / cuda

	on:
	workflow_dispatch:
	pull_request:

	jobs:
	test-cuda:
	concurrency:
	group: ${{ github.workflow }}-${{ github.job }}-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true
	runs-on: [single-gpu, nvidia-gpu, t4, ci]
	container:
	image: nvidia/cuda:12.3.1-devel-ubuntu22.04
	options: --gpus 0
	if: ${{ github.event.pull_request.head.repo.full_name == github.event.pull_request.base.repo.full_name }}
	permissions:
	contents: write
	packages: write
	# This is used to complete the identity challenge
	# with sigstore/fulcio when running outside of PRs.
	id-token: write
	security-events: write
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3
	- name: Install dependencies
	run: apt-get update && apt install curl build-essential libssl-dev protobuf-compiler pkg-config -y
	- name: Install Rust Stable
	uses: actions-rust-lang/setup-rust-toolchain@v1
	- uses: Swatinem/rust-cache@v2
	- name: Test (cuda)
	run: cargo test --features cuda

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