Vacancy No. IPE 01-21

IPE 01-21 Master Thesis or Internship: Leveraging parallel hardware for advanced tomography and laminography

Job description

Computed Tomography and Laminography are indispensable tools for studying inner structures in materials and biological spices. New instruments relaying on different types of energy-matter interaction principles, technological advances in instrumentation and detection technologies open a way for increasing number of new applications. Many of these applications, however, pose a challenge for a high quality reconstruction due to low signal-to-noise ratio, limited or non-standard acquisition trajectory, etc. Traditional reconstruction algorithms are ill suited for the low-dose, limited angle, or spectral tomography. Instead regularized iterative reconstruction techniques are recommended to improve reconstruction quality through incorporation of available prior information. While a proof-of-concept has been already established in mathematical community, there are significant challenges in adapting them for a wider use in labs and research facilities. One of the main aspects is extremely high requirements in terms of memory consumption and computing power.

There is an ongoing international effort to build a modular reconstruction framework providing an extensive library of regularization techniques and also practically viable for cutting-edge scientific and industrial applications where conventional algorithms fail. You will join the project and will contribute your numerical and computing skills to optimize the performance of reconstruction and regularization pipelines. The project is performed as a collaboration between the University of Manchester (UK), STFC (UK), DTU (Denmark) and KIT.

We can offer multiple tasks widely varying in terms of complexity and focus. The available options range from simple integration and benchmarking tasks (offered as internship only) to a more complex projects like careful optimization of selected regularization algorithms for recent hardware architectures. The tomographic reconstruction is a data-intensive task and the performance is heavily dependent on efficient usage of processor caches. We are interested in both fine-tuning of traditional multi-threaded CPU codes and also in leveraging the massively parallel architectures like GPUs and FPGAs. To reduce memory consumption, mixed-precision computations are envisaged. The actual task within project will be offered during the interview depending on applicant skills and interests.

Personal qualification

Excellent coding skills. Understanding of hardware architectures and its implications for the software performance. Knowledge of performance analysis tools and ability to execute result-driven benchmarking strategy. Prior experience in parallel programming is highly desirable. Background in linear algebra, numerical methods or optimization theory is a plus.

Organizational unit

Institute for Data Processing and Electronics (IPE)

Starting date

as soon as possible

Contract duration        

Expected duration: 6-months

Contact person                    

Suren Chilingaryan suren.chilingaryan@kit.edu

Phone: +49 721 / 608 26579

Evelina Ametova evelina.ametova@kit.edu

Application

Please apply online using the button below for this vacancy number IPE 01-21.
Personnel support is provided by 

Ms Schaber
phone: +49 721 608-25184,

Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany

Recognized severely disabled persons will be preferred if they are equally qualified.