Scala Computing has developed a novel and powerful HPC cloud simulation platform, Scala ClearSubmit. Scala ClearSubmit is a comprehensive solution that simplifies the migration, deployment, submission, and management of HPC jobs in cloud environments. Our proprietary multi-datacenter platform allows users to upload and run any HPC job on thousands of instances at scale in a matter of minutes, all on an application’s optimal compute environment. It can also be used to deploy on-demand datacenters and private clouds or to rapidly expand existing resources by creating on-demand hybrid clouds. When coupled with Scala Computing’s proprietary job scheduling enhancements, ClearSubmit becomes an invaluable tool for leveraging HPC in the cloud.