SUNStepper basics based on MRIStepInnerStepper #1340

	#
	name: Build and Test - Ubuntu/gcc (TPLs, no GPUs)

	on:
	push:
	branches:
	- main
	- develop
	pull_request:
	merge_group:
	workflow_dispatch:

	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.ref_name }}
	cancel-in-progress: true

	jobs:
	build_and_test:
	runs-on: ubuntu-latest
	container:
	image: ghcr.io/llnl/sundials-ci-int${{ matrix.indexsize }}-${{ matrix.precision }}:latest
	options: --user root
	strategy:
	max-parallel: 2
	matrix:
	indexsize: [32, 64]
	# Disable extended tests until compiler warnings are addressed
	precision: ['single', 'double']
	buildtype: ['Debug', 'Release', 'RelWithDebInfo']
	exclude:
	- buildtype: Debug
	precision: single
	# - buildtype: Debug
	# precision: extended
	- buildtype: Release
	precision: single
	# - buildtype: Release
	# precision: extended
	- buildtype: RelWithDebInfo
	precision: double

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	submodules: true
	- name: Run test_driver.sh
	uses: ./.github/actions/test-driver
	with:
	indexsize: ${{ matrix.indexsize }}
	precision: ${{ matrix.precision }}
	env:
	CMAKE_BUILD_TYPE: ${{ matrix.buildtype }}
	- name: Archive build files from failed build
	uses: actions/upload-artifact@v4
	if: failure()
	with:
	name: build_files
	path: \|
	${{ github.workspace }}/test/build_*
	!${{ github.workspace }}/test/build_*/Testing/output
	- name: Archive output files from failed build
	uses: actions/upload-artifact@v4
	if: failure()
	with:
	name: output_files
	path: \|
	${{ github.workspace }}/test/build_*/Testing/

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