nTop vs OpenPISCO

nTop is an engineering design platform for generating parametric geometry and exploring design variants. Its implicit modeling represents geometry mathematically, helping models remain stable through substantial parameter changes. Design logic can run across thousands of variants on desktop or distributed cloud compute, while GPU compute and machine learning are described as ways to shorten simulation feedback cycles. The platform supports assembly and surface modeling and imports CAD, mesh, CAE, and other formats, including STEP, Parasolid, CATIA V5, Creo, SolidWorks, STL, OBJ, Abaqus, and ANSYS; listed exports include STEP, Parasolid, STL, and 3MF. The interactive desktop application supports 64-bit Windows 11 Enterprise, Professional, and Education editions; nTop Automate also supports Red Hat Enterprise Linux 8.9. The system requirements specify at least 64 GB RAM and an NVIDIA GPU with Volta architecture or newer and 8 GB VRAM. Commercial pricing is on request. Students, educators, and academic researchers can apply for a free non-commercial education version.

OpenPisco is an open source research and development platform for topology optimization using the level-set method. It combines optimization algorithms, direct and adjoint analyses, remeshing tools and level-set algorithms, with methods for fixed-mesh shape capturing and body-fitted mesh shape tracking. The design process supports grids, unstructured meshes and body-fitted meshes, and includes an interface to MMG3D for remeshing. Users can work through a Python library and API, the OpenPiscoCL command-line application, or a graphical application. The Python interface targets developers and advanced users; the command line supports automation, batch processing and HPC execution, while the GUI is suited to visualization. Plugins allow custom mesh readers, optimization algorithms and physics solvers to be added without changing existing source code. Documented external solver options include Code_Aster, FreeFem, ZSet and OpenFOAM; an internal finite element solver is also available. Built on the Muscat library, OpenPisco is intended for industrial and academic research, including rapid prototyping of topology optimization methods. Documentation reports installation on Ubuntu Linux, macOS, Windows 10 and WSL 20.04.