Create, review, debug, and recover LS-DYNA keyword decks and simulation workflows. Use when working with LS-DYNA `*.k` or `*.key` input files, include trees, explicit crash or impact models, implicit static or quasi-static solves, contact definitions, section and material selection, timestep or mass-scaling control, hourglass stabilization, thermal or coupled workflows, ALE/SPH/ICFD/EM/DEM/CESE/IGA cases, or LS-DYNA runtime instability and model-quality issues.
Build, review, debug, and automate Gmsh geometry and meshing workflows. Use when working with `.geo` scripts, the Gmsh Python API, GEO versus OpenCASCADE modeling, physical groups, mesh-size fields, transfinite or recombine options, boundary layers, structured/unstructured algorithm selection, mesh partitioning, periodic meshes, high-order elements, mesh export and solver handoff (FEniCS, OpenFOAM, Elmer, SU2, etc.), CAD/STL import, or Gmsh CLI and meshing failures.
Generate, review, debug, and recover OpenFOAM case files for CFD workflows. Use when working with OpenFOAM dictionaries, case structure, turbulence fields, boundary conditions, decomposition, numerics, or OpenFOAM runtime errors. Also covers RANS/LES turbulence setup, wall functions, y+ targeting, conjugate heat transfer, compressible flows, VOF multiphase, mesh quality, and scheme tuning.
Build, review, debug, and automate VASP first-principles workflows. Use when working with VASP input sets such as INCAR, POSCAR, KPOINTS, and POTCAR; when choosing SCF, relaxation, static, DOS, or band-structure stages; or when fixing convergence, symmetry, cutoff, and k-point issues. Also covers magnetic calculations, spin-orbit coupling, hybrid functionals, surface slabs, DFT+U, van der Waals, phonons, molecular dynamics, NEB, and defect calculations.
Navigate foundational HPC knowledge across concepts, architectures, schedulers, Linux usage, storage and RDMA, containers, cloud basics, and cluster administration patterns distilled from hpclib.com. Use when the task is about understanding or explaining HPC basics, Slurm or PBS or LSF concepts, Linux-on-cluster workflows, software environment setup, storage or network fundamentals, or when turning general HPC knowledge into future skills.
Build, review, debug, and launch CUDA- and GPU-accelerated HPC workflows. Use when working with `nvcc`, host-compiler compatibility, CUDA-aware MPI, rank-to-GPU mapping, `CUDA_VISIBLE_DEVICES`, Slurm GPU scheduling, GPU memory or stream behavior, or CUDA build and runtime failures.
Build, review, debug, and tune hypre-based sparse solver workflows. Use when working with hypre `IJ`, `Struct`, or `SStruct` interfaces, `BoomerAMG`, Krylov solvers, MPI-distributed sparse systems, PETSc integration, or hypre build and runtime failures.
Build, review, debug, and launch MPI-based applications across Open MPI, MPICH-family, Intel MPI, MVAPICH2, and scheduler-integrated runtimes. Use when working with `mpirun` or `mpiexec` or `srun`, wrapper compilers such as `mpicc`, rank or thread geometry, process binding, PMI or PMIx integration, or MPI build and runtime failures.