The 2019 ACM Europe Summer School on “HPC Computer Architectures for AI and Dedicated Applications” will take place in Barcelona 17 – 24 July 2019, and is hosted by the Barcelona Supercomputing Center (BSC-CNS) and the Universitat Politècnica de Catalunya (UPC-BarcelonaTECH). ACM’s Special Interst Group on High Performance Computing (SIGHPC), devoted exclusively to the needs of students, faculty, researchers, and practitioners in high performance computing, is the primary sponsor of the school. Other industry sponsors support the school.