This book constitutes the thoroughly refereedpost-conference proceedings of 12 workshops held at the 21st InternationalConference on Parallel and Distributed Computing, Euro-Par 2015, in Vienna,Austria, in August 2015.

The 67 revised full papers presented were carefully reviewedand selected from 121 submissions. The volume includes papers from thefollowing workshops: BigDataCloud: 4th Workshop on Big Data Management inClouds - Euro-EDUPAR: First European Workshop on Parallel and DistributedComputing Education for Undergraduate Students - Hetero Par: 13th InternationalWorkshop on Algorithms, Models and Tools for Parallel Computing onHeterogeneous Platforms - LSDVE: Third Workshop on Large Scale DistributedVirtual Environments - OMHI: 4th International Workshop on On-chip MemoryHierarchies and Interconnects - PADAPS: Third Workshop on Parallel andDistributed Agent-Based Simulations - PELGA: Workshop on PerformanceEngineering for Large-Scale Graph Analytics - REPPAR: Second InternationalWorkshop on Reproducibility in Parallel Computing - Resilience: 8th Workshop onResiliency in High Performance Computing in Clusters, Clouds, and Grids - ROME:Third Workshop on Runtime and Operating Systems for the Many Core Era - UCHPC:8th Workshop on UnConventional High Performance Computing - and VHPC: 10thWorkshop on Virtualization in High-Performance Cloud Computing.