Using ADIFOR and ADIC to provide Jacobians for the SNES component of PETSc

摘要: The solution of large-scale nonlinear problems is important to many areas computational science. SNES component PETSc provides a robust and flexible suite numerical routines for the solving such problems. These generally utilize Jacobian matrix. We present strategy using ADIFOR or ADIC assist in development subroutine computing this illustrate one example programs four different approaches via automatic differentiation.