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Computer Languages & Systems Software

Hussain Kadhem

hussain kadhem
Hussain Kadhem
Computer Science Department
Pacific Time
Berkeley, California

Hussain Kadhem is a first year Ph.D. student in mathematics at UC Berkeley, with a primary research interest in higher geometry and the formalization of quantum field theory and quantum gravity. Their work at Berkeley Lab currently focuses on the testing and implementation of Fortran 2018 parallel programming features in the Flang frontend of LLVM.

Academic Home Page

Posters

Katherine Rasmussen, Damian Rouson, Naje George, Dan Bonachea, Hussain Kadhem, Brian Friesen, "Agile Acceleration of LLVM Flang Support for Fortran 2018 Parallel Programming", Research Poster at the International Conference for High Performance Computing, Networking, Storage, and Analysis (SC22), November 2022, doi: 10.25344/S4CP4S

The LLVM Flang compiler ("Flang") is currently Fortran 95 compliant, and the frontend can parse Fortran 2018. However, Flang does not have a comprehensive 2018 test suite and does not fully implement the static semantics of the 2018 standard. We are investigating whether agile software development techniques, such as pair programming and test-driven development (TDD), can help Flang to rapidly progress to Fortran 2018 compliance. Because of the paramount importance of parallelism in high-performance computing, we are focusing on Fortran’s parallel features, commonly denoted “Coarray Fortran.” We are developing what we believe are the first exhaustive, open-source tests for the static semantics of Fortran 2018 parallel features, and contributing them to the LLVM project. A related effort involves writing runtime tests for parallel 2018 features and supporting those tests by developing a new parallel runtime library: the CoArray Fortran Framework of Efficient Interfaces to Network Environments (Caffeine).

Extended Abstract and Poster

Video presentation