Interoperable geometry and mesh components for SciDAC applications

Updating meshes on deforming domains: An application of the target‐matrix paradigm

“…The assumption that the mesh boundary vertex coordinates of M d are known does not apply to many practical problems and must be dealt with; for the purpose of the present paper, these assumptions are made in order to focus on the problem of properly updating the interior vertex coordinates. A preliminary stab at the boundary problem is described in [7]. It is further assumed that boundary vertex positions are fixed in the optimization of the TMP objective function.…”

“…The case d = 3 (three dimensions) was used with success in [7,9]. The case p = 1 was used for all of the examples.…”

Advances in electromagnetic modelling through high performance computing

“…This endeavor will far exceed the single CPU memory limitation of existing meshing software. A parallel meshing capability based on solid model has been developed together with U of Wisconsin and Sandia [10] that makes use of the CHACO graph library to partition the geometry into subdomains and then distribute them onto different processors. Figure 5 demonstrates the test case for a simplified ILC cavity with four sub-domains showing the efficacy of the method.…”

Achievements in ISICs/SAPP collaborations for electromagnetic modeling of accelerators

“…With the reduced gradient method, the optimality conditions consist of three parts: state equations, adjoint equations, and design equations. Researchers from TOPS are developing the optimization method [4] while those from TSTT are working on mesh movement and design variables computations [5]. SLAC is solving the state equations and the adjoint equations plus integrating all three components to develop a parallel capability.…”