Parallel scalable PDE-constrained optimization: antenna identification in hyperthermia cancer treatment planning
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We present a PDE-constrained optimization algorithm which is designed for parallel scalability on distributed-memory architectures with thousands of cores. The method is based on a line-search interior-point algorithm for large-scale continuous optimization, it is matrix-free in that it does not require the factorization of derivative matrices. Instead, it uses a new parallel and robust iterative linear solver on distributed-memory architectures. We will show almost linear parallel scalability results for the complete optimization problem, which is a new emerging important biomedical application and is related to antenna identification in hyperthermia cancer treatment planning.
KeywordsPDE-constrained optimization Large-scale parallel optimization Biomedical application Saddle-point matrices Sparse liner solver
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