Upon receipt of requests to run a simulation, the middleware starts the simulation engine instances required to execute the requests and monitors their status.
Such flexibility allows, for instance, for Cloud providers to execute maintenance without stopping developers' applications (that are running on VMs) and to implement strategies for better resource usage through the migration of VMs.
We observed that the serial version, which was performed using only one core from an EC2 instance, took around 4 days to execute all 3,100 snapshots from the FFR model, and its parallel execution decreased this time by over 92% for the scales of cores examined.
Their lawyers, for instance, noted that the state had failed to execute its own plans properly.
After the move to Maven, running various steps could be done with Maven, and Jenkins was used to execute the steps (one instance is still running at https://jenkins.bigcat.unimaas.nl/job/cdk/.
The broker allows the users to execute their jobs on instances acquired by the broker.
In April 2008, for instance, the court issued an important decision in a case concerning the lethal chemicals used to execute inmates, linking to a draft article.
This removes the overheads of deploying and using HTCondor on the Cloud just to execute a single job per instance.
In these instances, interventions draw on local knowledge and input to execute programmes planned by outsiders [ 82].
