Upload Awareness and Full Pipeline Selection in Bidirectional Multicore Optical Networks

Remote tasks require an upload, heterogeneous processing and a return transfer. We ask the question of when final-completion selection adds value beyond upload-aware placement in bidirectional multicore elastic optical networks. Queue-aware placement (C), upload-aware placement (E) and heterogeneous direction-aware sequential completion-time scheduling (HD-SCTS, D) share temporal optical constraints. Saved standard-profile trials attribute an approximately 4% improvement to upload awareness, with E-to-D intervals spanning zero. A new twenty-seed online study evaluates COST239 and the National Science Foundation Network (NSFNET) under two workloads at M = 2, 6, 12 and 24. Standard-profile E-to-D point effects have absolute magnitude of at most 0.143%. In high-transfer-demand NSFNET, the effect decreases from 6.79% at M6 to 0.15% at M24 (95% interval 0.02–0.30%). Scan-order sensitivity also exposes unscheduled tasks in some comparator cells. Correlated-arrival and illustrative group-delay sensitivities examine additional limits, while isolated controller cost is reported separately from simulated response. Benefits depend on workload, candidate construction and the stated reservation and mean-crosstalk model.