Neko is a portable framework, written using modern Fortran, for high-order spectral element flow simulations. Using an object-oriented design Neko allows for multi-tier abstraction for solver stacks and allows Neko to be build against various typos of hardware backends. Neko uses Nek5000 from UCHcago/ANL for the spectral element code, also uses it as a base for naming conventions, code structure and numerical methods.
There are several examples and benchmarks available within the Neko repo.
This document will show how to run the provided tgv32 benchmark.
First Navigate to the benchmark.
cd /path/to/neko/bench/tgv32
Copy/Link mesh.
This benchmark uses the a mesh provided in the example /path/to/neko/examples/tgv/32768.nmsh
ln -s /path/to/neko/examples/tgv/32768.nmsh /path/to/neko/bench/tgv32/32768.nmsh
This has already been done within the example dockerfile provided.
Make and Execute
Replace the # with the number of gpus to use.
makeneko tgv.f90
mpirun -np # ./neko tgv.case
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The application is provided in a container image format that includes the following separate and independent components:
| Package | License | URL |
|---|---|---|
| Ubuntu | Creative Commons CC-BY-SA Version 3.0 UK License | Ubuntu Legal |
| CMAKE | OSI-approved BSD-3 clause | CMake License |
| OpenMPI | BSD 3-Clause | OpenMPI License OpenMPI Dependencies Licenses |
| OpenUCX | BSD 3-Clause | OpenUCX License |
| ROCm | Custom/MIT/Apache V2.0/UIUC OSL | ROCm Licensing Terms |
| NEKO | BDS 3-Clause with additional notes | NEKO NEKO License |
| JSON Fortran | BDS 3-Clause/MIT | JSON Fortran JSON Fortran License |
| GSLIB | BDS 3-Clause with additional notes | GSLIB GSLIB License |
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