exaDEM vs MPTRAC
exaDEM
collab4exanbody.github.ioMPTRAC
slcs-jsc.github.ioSide by side
| Figure | exaDEM | MPTRAC |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Linux | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 0 | 2 |
| Spec score · Physics Simulation Software | 7.4 (#64) | 8.7 (#7) |
| Assessment tools | No | No |
| Authoring tools | No | No |
| Delivery mode | desktop | hybrid |
| Free plan | Yes | Yes |
| Integrations | Optional packages documented for use with exaDEM include RSA_MPI and Rockable. | The documentation describes visualization interfaces for Gnuplot and ParaView and output formats that support integration with the CLaMS model. |
| Lesson library | No | No |
| License | The project repository identifies Apache-2.0 as the exaDEM license. | The repository states that MPTRAC is distributed under the GNU General Public License v3.0. |
| Offline access | Yes | Yes |
| Parallel computing | It combines MPI and OpenMP threading and supports MPI with GPUs using CUDA through the Onika layer. | MPTRAC supports hybrid MPI, OpenMP, and OpenACC parallelization for clusters and GPU-enabled systems; OpenMP is always enabled. |
| Purpose | ExaDEM is a Discrete Element Method code for computational simulations, developed within the exaNBody framework. | MPTRAC is a Lagrangian particle dispersion model for analyzing atmospheric transport in the free troposphere and stratosphere. |
| Support | The project directs users to file bug issues and lists [email protected] for support or collaboration questions. | The project directs questions, support, and collaboration inquiries to Dr. Lars Hoffmann at the Jülich Supercomputing Centre. |
Plans
In their own words
exaDEM
exaDEM has no write-up on Specifiction yet; its figures are above.
MPTRAC
MPTRAC is a Lagrangian particle dispersion model for studying atmospheric transport in the free troposphere and stratosphere. It calculates forward and backward air-parcel trajectories from meteorological wind fields, with stochastic diffusion, subgrid wind variation and mixing between parcels. Optional process parameterizations cover convection, sedimentation, decay, gas-phase and aqueous-phase chemistry, and wet and dry deposition. Listed research applications include long-range pollutant transport, volcanic ash dispersion, tracer experiments and atmospheric chemistry.
The browser-based Web Runner can configure, run and visualize simulations, then download results without local installation. It is limited to 10,000 air parcels, 30 days and 10 minutes of model runtime. The model needs meteorological input, normally netCDF files on a regular pressure, longitude and latitude grid. MPTRAC supports hybrid MPI, OpenMP and OpenACC parallelization, and offers visualization interfaces for Gnuplot and ParaView. It is GPL-3.0 software for Linux, self-hosted and web use; listed pricing includes free.