The burgeoning development of the cloud market has promoted the expansion of resources
held by cloud providers, but the resulting underutilization caused by the over-provisioned …

When deploying workflows in cloud environments, the use of Spot Instances (SIs) is
intriguing as they are much cheaper than on-demand ones. However, SIs are volatile and …

The economics of cloud computing has recently attracted increasing attention. In particular,
a topic which is still under debate is how prices charged to customers for cloud resources …

Workflow scheduling becomes difficult and demanding in multi-cloud systems because of
the variety of billing models and resource kinds, as well as the susceptibility of processes to …

Recently, we have witnessed workflows from science and other data-intensive applications
emerging on Infrastructure-as-a-Service (IaaS) clouds, and many workflow service providers …

Amazon offers spot instances to cloud customers using an auction-like mechanism. These
instances are dynamically priced and offered at a lower price with less guarantee of …

Spot instances were introduced by Amazon EC2 in December 2009 to sell its spare capacity
through auction based market mechanism. Despite its extremely low prices, cloud spot …

Virtualization is a key aspect to achieve scalability and flexibility in a cloud. Many solutions
have been proposed to monitor and deploy Virtual Machines (VM) in resource pool of cloud …

Having received significant attention in the industry, the cloud market is nowadays fiercely
competitive with many cloud providers. On one hand, cloud providers compete against each …

Amazon spot instances provide preemptable computing capacity at a cost that is often
significantly lower than comparable on-demand or reserved instances. Spot instances are …