Requirements

Mandatory Requirements

This project implements a GPU-accelerated hydrological simulation with MPI support. It is written in C++17 and uses CUDA for device-side computations. The build system is managed using GNU Make and requires several external libraries.

System Requirements

• C++ Compiler Must support the C++17 standard. Recommended compilers:

  • g++ (version 9 or later)
  • clang++ (version 10 or later)
  • Intel icc (for optimized performance on Intel CPUs)

• CUDA Toolkit (version 12.x or newer) Required to compile and run the CUDA kernels.

  • nvcc must be available in the system path.
  • Requires a CUDA-capable GPU with compute capability ≥ 9.0.

• GNU Make Required to build the project using the provided Makefile.

• MPI (Message Passing Interface) Required for multi-node and multi-GPU distributed simulations.

  • Supported implementations: OpenMPI or MPICH.
  • mpicxx must be available in the path.

• NetCDF (version 4.9.2) Required for reading forcing data and writing simulation outputs.

  • Must be compiled with HDF5 support.

  • The NETCDF_PATH environment variable must point to the NetCDF installation directory, which must contain:

    • include/ — for headers files
    • lib64/ — for compiled libraries

• HDF5 (version 1.14.4) Required as a dependency of NetCDF for high-performance I/O.