== Carpet Vs. CarpetX ==

Currently there are two production drivers in the Einstein Toolkit: Carpet and CarpetX.

Carpet is a CPU based Adaptive Mesh Refinement (AMR) framework that has been a part of the Einstein Toolkit since 2006. It has seen extensive production use and should work out of the box when you get an official release of the Einstein Toolkit. If you are using Carpet, please see the official download and install instructions [https://einsteintoolkit.org/download.html here].

CarpetX is a new AMR driver capable of running on CPUs and GPUs. It is ready for production use and is also a part of the Einstein Toolkit. However, when using CarpetX, a number of thorns that are required for fully featured numerical relativity simulations are not included in the official release. This requires a different thornlist(s) depending on which features are desired. This is because either thorns are still in development phase or some existing Carpet thorns are not compatible with CarpetX (yet).

For this reason, we are presenting a collection of thornlists for checking out various components required for fully featured simulations. This is a temporary solution and, in the future, such thornlists are expected to be no longer necessary once CarpetX thorns are included in the official release.

== Basic CarpetX, no subcycling in time ==

This thornlist provides a basic cactus checkouts, with CarpetX, its required external libraries

<syntaxhighlight lang="bash" line>
# A basic Component list for the Einstein Toolkit <http://einsteintoolkit.org/> using CarpetX <https://github.com/EinsteinToolkit/CarpetX>
# $Revision$
# $Date$
# $HeadURL$

!CRL_VERSION = 1.0

!DEFINE ROOT = Cactus
!DEFINE ARR = $ROOT/arrangements
!DEFINE COMPONENTLIST_TARGET = $ROOT/thornlists/

# Cactus Flesh
!TARGET = $ROOT
!TYPE = git
!URL = https://bitbucket.org/cactuscode/cactus.git
!NAME = flesh
!CHECKOUT = .clang-format CONTRIBUTORS COPYRIGHT doc lib Makefile README.md src

# Simulation Factory
!TARGET = $ROOT
!TYPE = git
!URL = https://bitbucket.org/simfactory/simfactory2.git
!REPO_PATH = $1
!NAME = simfactory2
!CHECKOUT = ./simfactory

# Various Cactus utilities
!TARGET = $ROOT/utils
!TYPE = git
!URL = https://bitbucket.org/cactuscode/utilities.git
!REPO_PATH = $2
!CHECKOUT = ./ParameterFiles ./Scripts ./Syntax

# The GetComponents script
!TARGET = $ROOT/bin
!TYPE = git
!URL = https://github.com/gridaphobe/CRL.git
!CHECKOUT = GetComponents

# CactusDoc thorns
!TARGET = $ARR/CactusDoc
!TYPE = git
!URL = https://bitbucket.org/cactuscode/coredoc.git
!NAME = CoreDoc
!REPO_PATH = $1
!CHECKOUT = ./CoreDoc

# CactusBase thorns
!TARGET = $ARR
!TYPE = git
!URL = https://bitbucket.org/cactuscode/cactusbase.git
!REPO_PATH = $2
!CHECKOUT =
CactusBase/Boundary
CactusBase/CoordBase
CactusBase/Fortran
CactusBase/InitBase
CactusBase/IOUtil
CactusBase/SymBase
CactusBase/Time

# CactusTest thorns
!TARGET = $ARR
!TYPE = git
!URL = https://bitbucket.org/cactuscode/cactustest.git
!REPO_PATH = $2
!CHECKOUT = CactusTest/TestAllTypes
CactusTest/TestArrays
CactusTest/TestComplex
CactusTest/TestCoordinates
CactusTest/TestFortranCrayPointers
CactusTest/TestFortranDependencies1
CactusTest/TestFortranDependencies2
CactusTest/TestFpointerNULL
CactusTest/TestFreeF90
CactusTest/TestInclude1
CactusTest/TestInclude2
CactusTest/TestMath
CactusTest/TestPar
CactusTest/TestReduce
CactusTest/TestSchedule
CactusTest/TestStrings
CactusTest/TestTable
CactusTest/TestTimers
CactusTest/TestTypes

# CactusUtils thorns
!TARGET = $ARR
!TYPE = git
!URL = https://bitbucket.org/cactuscode/cactusutils.git
!REPO_PATH = $2
!CHECKOUT = CactusUtils/Accelerator CactusUtils/OpenCLRunTime
CactusUtils/Formaline
CactusUtils/MemSpeed
CactusUtils/NaNCatcher
CactusUtils/Nice
CactusUtils/NoMPI
CactusUtils/SystemStatistics
CactusUtils/SystemTopology
CactusUtils/TerminationTrigger
CactusUtils/TimerReport
CactusUtils/Trigger
CactusUtils/Vectors
CactusUtils/WatchDog

# Additional Cactus thorns
!TARGET = $ARR
!TYPE = git
!URL = https://github.com/EinsteinToolkit/$1-$2
!REPO_PATH = ../$1-$2
!CHECKOUT = ExternalLibraries/OpenBLAS ExternalLibraries/OpenCL ExternalLibraries/pciutils ExternalLibraries/PETSc
ExternalLibraries/ADIOS2
ExternalLibraries/AMReX
ExternalLibraries/BLAS
ExternalLibraries/Boost
ExternalLibraries/FFTW3
ExternalLibraries/GSL
ExternalLibraries/HDF5
ExternalLibraries/hwloc
ExternalLibraries/LAPACK
ExternalLibraries/libjpeg
ExternalLibraries/LORENE
ExternalLibraries/MPI
ExternalLibraries/NSIMD
ExternalLibraries/openPMD
ExternalLibraries/OpenSSL
ExternalLibraries/PAPI
ExternalLibraries/pthreads
ExternalLibraries/Silo
ExternalLibraries/ssht
ExternalLibraries/yaml_cpp
ExternalLibraries/zlib

# Kuibit post-processing tools for simulations
!TARGET = $ROOT/utils/Analysis
!TYPE = git
!URL = https://github.com/Sbozzolo/kuibit
!REPO_PATH = $2
!CHECKOUT = kuibit/docs kuibit/examples kuibit/kuibit kuibit/LICENSE kuibit/README.md

# Numerical
!TARGET = $ARR
!TYPE = git
!URL = https://bitbucket.org/cactuscode/numerical.git
!REPO_PATH= $2
!CHECKOUT =
Numerical/AEILocalInterp

# CarpetX thorns
!TARGET = $ARR
!TYPE = git
!URL = https://github.com/EinsteinToolkit/CarpetX.git
!REPO_PATH = $2
!CHECKOUT =
CarpetX/ADMBaseX
CarpetX/Algo
CarpetX/Arith
CarpetX/BoxInBox
CarpetX/CarpetX
CarpetX/CarpetXRegrid
CarpetX/CoordinatesX
CarpetX/Derivs
CarpetX/ErrorEstimator
CarpetX/FluxWaveToyX
CarpetX/HydroBaseX
CarpetX/Loop
CarpetX/MovingBoxToy
CarpetX/ODESolvers
CarpetX/PDESolvers
CarpetX/ParticlesX
CarpetX/PoissonX
CarpetX/SIMDWaveToyX
CarpetX/SpacetimeWaveToyX
CarpetX/StaggeredWaveToyX
CarpetX/TestArrayGroup
CarpetX/TestBoundaries
CarpetX/TestBoxInBox
CarpetX/TestDerivs
CarpetX/TestInterpolate
CarpetX/TestLoopX
CarpetX/TestNorms
CarpetX/TestODESolvers
CarpetX/TestODESolvers2
CarpetX/TestOutput
CarpetX/TestProlongate
CarpetX/TestSymmetries
CarpetX/TmunuBaseX
CarpetX/VGFWaveToyX
CarpetX/WaveToyX

# SpacetimeX thorns
!TARGET = $ARR
!TYPE = git
!URL = https://github.com/EinsteinToolkit/SpacetimeX.git
!REPO_PATH = $2
!CHECKOUT =
SpacetimeX/AHFinderDirect
SpacetimeX/BrillLindquist
SpacetimeX/Cowling
SpacetimeX/KerrSchildX
SpacetimeX/Multipole
SpacetimeX/NewRadX
SpacetimeX/PunctureTracker
SpacetimeX/Punctures
SpacetimeX/SphericalHarmonics
SpacetimeX/SphericalSurface
SpacetimeX/StaticTrumpet
SpacetimeX/TestNewRadX
SpacetimeX/TwoPuncturesX
SpacetimeX/Weyl
SpacetimeX/WeylScal4
SpacetimeX/Z4c

# Canuda -- CanudaX
!TARGET = $ARR
!TYPE = git
!URL = https://bitbucket.org/canuda/canudax.git
!REPO_PATH = $2
!CHECKOUT =
CanudaX/CanudaX_BSSNMoL
CanudaX/CanudaX_ExactID
CanudaX/CanudaX_NPScalars

# Cottonmouth
!TARGET = $ARR
!TYPE = git
!URL = https://github.com/EinsteinToolkit/Cottonmouth.git
!REPO_PATH= $2
!CHECKOUT =
Cottonmouth/CottonmouthBSSNOK4m
Cottonmouth/CottonmouthGaugeWaveID
Cottonmouth/CottonmouthLinearWaveID
Cottonmouth/CottonmouthZ4c4m

# AsterX
!TARGET = $ARR
!TYPE = git
!URL = https://github.com/EinsteinToolkit/AsterX.git
!REPO_PATH= $2
!CHECKOUT =
AsterX/AsterAnalysis
AsterX/AsterMasks
AsterX/AsterSeeds
AsterX/AsterUtils
AsterX/AsterX
AsterX/Con2PrimFactory
AsterX/EOSX
AsterX/ReconX
AsterX/TOVSolverX
AsterX/FishboneMoncriefIDX
</syntaxhighlight>