human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "exahype an engine for parallel dynamically adaptive simulations of wave problems"
  Abstract: ExaHyPE (``An Exascale Hyperbolic PDE Engine'') is a software engine for solving systems of first-order hyperbolic partial differential equations (PDEs). Hyperbolic PDEs are typically derived from the conservation laws of physics and are useful in a wide range of application areas. Applications powered by ExaHyPE can be run on a student's laptop, but are also able to exploit the thousands of processor cores of state-of-the-art supercomputers. The engine is able to dynamically adapt the accuracy of the simulation where needed through adaptive mesh refinement. Due to the robustness and shock capturing abilities of ExaHyPE's numerical methods, users of the engine can simulate linear and non-linear hyperbolic PDEs with very high accuracy. Users can tailor the engine to their particular PDE by specifying evolved quantities, fluxes, and source terms. A complete simulation code for a new hyperbolic PDE can often be realised within a few hours --- a task that, traditionally, can take weeks, months, often years for researchers starting from scratch. In this paper, we showcase ExaHyPE's workflow and capabilities through real-world scenarios from our two main application areas: seismology and astrophysics.

Connected through hyperedge HE-1 (induced by source paper "tasks unlimited lightweight task offloading exploiting mpi wait times for parallel adaptive mesh refinement"):
  with members:
    - "the peano software parallel automaton based dynamically adaptive grid traversals"
    - "stop talking to me a communication avoiding ader dg realisation"
    - "studies on the energy and deep memory behaviour of a cache oblivious task based hyperbolic pde solver"
    - "enclave tasking for discontinuous galerkin methods on dynamically adaptive meshes"
    - "swift using task based parallelism fully asynchronous communication and graph partition based domain decomposition for strong scaling on more than 100 000 cores"

Connected through hyperedge HE-2 (induced by source paper "role oriented code generation in an engine for solving hyperbolic pde systems"):
  with members:
    - "the peano software parallel automaton based dynamically adaptive grid traversals"
    - "a modular and extensible software architecture for particle dynamics"
    - "enclave tasking for discontinuous galerkin methods on dynamically adaptive meshes"

Connected through hyperedge HE-3 (induced by source paper "enclave tasking for discontinuous galerkin methods on dynamically adaptive meshes"):
  with members:
    - "stop talking to me a communication avoiding ader dg realisation"
    - "quasi matrix free hybrid multigrid on dynamically adaptive cartesian grids"
    - "fast matrix free evaluation of discontinuous galerkin finite element operators"
    - "asynchronous mpi for the masses"
    - "likwid a lightweight performance oriented tool suite for x86 multicore environments"
    - "likwid a lightweight performance oriented tool suite for x86 multicore environments"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.MS(Mathematical Software)