Many-core optimization of the Community Earth System Model
The Application Scalability and Performance group at the National Center for
Atmospheric Research has made significant progress in reducing the execution time
of multiple pieces of the Community Earth System Model (CESM) on both Xeon and
Xeon Phi architectures. Transformations to improve vectorization and cache
locality typically reduces execution time for pieces of CESM on both Xeon and Xeon
Phi by a factor of two. Progress has been made possible through the use of an
automated kernel extraction tool and extensive collaboration with multiple
institutions and several computer vendors. An overview of our approach and
progress is provided.