MatForge — Open Knowledge Hub for Scientific Simulation and Modeling

Reading Time: 7 minutesKey Takeaways pytest basics cover unit testing. Fixtures, parametrization, and pytest.approx are your starting point, not the finish line. Property-based testing with Hypothesis catches edge cases that manual tests often miss. It is used by major scientific Python projects such as NumPy, JAX, and PyTorch. Numerical convergence testing requires solver-specific tolerance strategies. Standard assertions do […]

Reading Time: 8 minutesKey Takeaways Containers solve one problem. They freeze the software environment, but they do not track what changed in your data or how your analysis evolved. Data versioning adds a missing layer. Tools like DVC and DataLad bring Git-style version control to datasets, making it easier to reproduce results with exact inputs, parameter files, and […]

Reading Time: 9 minutesKey Takeaways CuPy is the right choice when you want a drop-in NumPy or SciPy replacement that accelerates array operations with minimal code changes. It is optimized for bulk matrix math, FFTs, and element-wise operations. Numba works best when the bottleneck is Python loops or custom numerical functions. Its JIT compiler turns slow Python into […]

Reading Time: 7 minutesComputational physics is no longer a niche skill. It is a core competence for graduate researchers. Whether you are simulating black hole mergers or modeling phase transitions in alloys, the ability to translate physical equations into working code separates productive researchers from those who struggle to turn theory into results. This guide maps out a […]

Reading Time: 9 minutesYour simulation outputs are not just files. They are research assets. When a multi-node run finishes and generates hundreds of gigabytes across thousands of time steps, you are not only producing data. You are creating scientific evidence that needs to survive hardware upgrades, personnel turnover, and institutional storage migrations. This guide explains how to structure […]

Reading Time: 6 minutesKey Takeaways There is no best simulation tool. The right choice depends on your problem type, computational scale, team expertise, and long-term maintenance plan. The four evaluation pillars are domain physics, computational approach, team usability, and licensing or governance. Mesh-based tools such as OpenFOAM, FEniCS, and MOOSE work well for steady-state problems. Mesh-free approaches such […]

Reading Time: 8 minutesKey Takeaways Most research teams should use GitHub Flow. Short-lived feature branches with peer review balance safety with simplicity and match how many scientific collaborations work. GitFlow is often too complex for small labs, but it can help large research libraries with scheduled release cycles. Experiment branches with an exp/ prefix are useful for scientific […]

Reading Time: 8 minutesKey Takeaways Profile before optimizing. Do not guess which part of your PDE solver is slow. Measure it first. The real bottleneck is often not the one you expect. Python profilers are practical. Tools such as cProfile, py-spy, scalene, and SnakeViz each support different profiling needs. Common PDE solver bottlenecks include matrix assembly, linear solver […]

Reading Time: 8 minutesKey Takeaways Parameter sweeps are experimental design, not just code. Treating them as structured experiments with proper documentation separates publication-ready work from fragile, unreproducible results. Full factorial sweeps are rarely the right choice. With k parameters, a full factorial requires 2^k runs. Fractional factorial designs and space-filling designs like Latin Hypercube Sampling can provide useful […]

Reading Time: 7 minutesIf you are a researcher who has spent years working with Navier-Stokes equations and wants to see them run in Python without buying expensive software or rewriting everything in C++, this guide is for you. Computational Fluid Dynamics, or CFD, in Python has matured dramatically. Modern Python-based solvers and frameworks now cover the full workflow, […]