This book constitutes the thoroughly refereed post-conference proceedings of the 21st
International Workshop on Job Scheduling Strategies for Parallel Processing JSSPP 2017 held
in Orlando FL USA in June 2017.The 10 revised full papers presented in this book were
carefully reviewed and selected from 20 submissions. The papers cover topics in the fields of
design and evaluation of new scheduling approaches performance evaluation of scheduling
approaches workloads consideration of additional constraints in scheduling systems scaling
and composition of very large scheduling systems cloud provider issues interaction between
schedulers on different levels interaction between applications workloads experience reports
from production systems or large scale compute campaigns.
