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SUMMARY:David Ham (Imperial College London)
DTSTART:20220524T060000Z
DTEND:20220524T070000Z
DTSTAMP:20260423T024610Z
UID:anumacs/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/anumacs/2/">
 Automating forward and inverse finite element simulation in Firedrake and 
 Dolfin-adjoint</a>\nby David Ham (Imperial College London) as part of ANU 
 Mathematics and Computational Sciences Seminar\n\nLecture held in Room 1.3
 3\, Hanna Neumann Building #145.\n\nAbstract\nSimulating continuous system
 s modelled by PDEs underpins much of computational science and engineering
 . Each simulation is a complex combination of PDEs\, parametrisations\, di
 scretisations\, preconditioners and solvers. The precise combination that 
 is optimal is different for each application and changes with the hardware
 \, or as further advances in numerical mathematics are made. Many (possibl
 y most) simulation challenges in science and engineering are actually inve
 rse problems in which parameters are sought\, sensitivities analysed and/o
 r data assimilated.\n\nHere I will present Firedrake\, an automated system
  for generating numerical solutions to PDEs from a high level mathematical
  specification. I will examine some of the capabilities of the system befo
 re lifting the lid on the sequence of automated mathematical transformatio
 ns that make it possible. I will also cover the interaction with dolfin-ad
 joint to produce gradients of solution functionals by solving the adjoint 
 PDE.\n
LOCATION:https://researchseminars.org/talk/anumacs/2/
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