Prototyping Workload-based Resource Coordination for Cloud-leveraged HPC/BigData Cluster Sharing

Recently high-performance computing (HPC) and BigData workloads are increasingly running over cloud-leveraged shared resources, meanwhile traditionally dedicated clusters have been configured only for specificworkloads. That is, in order to improve resource utilization efficiency, shared resource clusters are required to support both HPC and BigData workloads. Thus, in this paper, we discuss about a prototyping effort to enable workload-based resource coordination for cloud-leveraged shared HPC/BigData cluster.By taking OpenStack cloud-leveraged shared cluster as an example, we demonstrate the possibility of workload-based bare-metal cluster reconfiguration with interchangeable cluster provisioning and associated monitoring support

Deploying GPU-based Real-time DXT compression for Networked Visual Sharing

The networked visual sharing application in multi-party collaboration environment needs compression of video streams due to network bandwidth limitation. For interactive real-time sharing, real-time compression of high-quality video as well as audio echo cancellation are required, which commonly depend on the availability of high-cost hard-to-setup specialized compression and echo-cancellation hardware. In this paper, by leveraging the computing power of GPU-accelerated PC (personal computer), we discuss how to support the software-only real-time compression of HD (high-definition) video streams. The chosen lightweight scheme, DXT (i.e., S3 Texture Compression), is highly matched with GPU-accelerated texture compression. By implementing GPU-accelerated DXT compression, based on CUDA (Compute Unified Device Architecture) parallel computing, and by deploying a software-based echo controller together, we can enable a low-cost solution for efficient networked visual sharing in collaboration environment

OF@TEIN: An OpenFlow-enabled SDN Testbed over International SmartX Rack Sites

In this paper, we will discuss our on-going effort for OF@TEIN SDN(Software-Defined Networking) testbed, which currently spans over Korea and fiveSouth-East Asian (SEA) collaborators with internationally deployed OpenFlowenabledSmartX Racks