GTAA: A Geo-Aware Task Allocation Approach in Cloud Workflow

The cloud computing simplifies application development into the orchestration of virtual-services workflow. However, network latency between geographically distributed hosts would slow down the workflow's makespan time. This paper proposes a geo-aware task allocation approach (GTAA). GTAA partitions the workflow for geo-distributed data centers(DCs) and reduces sub-workflows across DCs. GTAA aims to optimize overall workflow makespan time and improves the efficiency of workflow.