User:SJK8990/sandbox

The Extreme Science and Engineering Discovery Environment (XSEDE) is an NSF-funded virtual organization that integrates and coordinates the sharing of advanced digital services - including supercomputers and high-end visualization and data analysis resources - with researchers nationally to support science.

Digital services provide users with seamless integration to NSF's high-performance computing and data resources. XSEDE's integrated, comprehensive suite of advanced digital services combined with other high-end facilities and campus-based resources, serve as the foundation for a national cyberinfrastructure ecosystem.

XSEDE also provides the expertise to ensure that researchers can make the most of the supercomputers and tools. Those include:


 * Extended Collaborative Support Service (ECSS) includes teaming XSEDE computational science experts with individual research groups or research communities to extend their capabilities.
 * The XSEDE Cyberinfrastructure Integration (XCI) team provides an advanced hardware and software architecture that allows for individualized user experiences.
 * The XSEDE User Portal web interface allows users to monitor and access XSEDE resources, manage jobs on those resources, report issues, and analyze and visualize results.
 * Coordinated allocations of NSF's high-end resources and digital services, through the XSEDE Resource Allocation Service (RAS) team.
 * A powerful and extensible network, maintained by the XSEDE Operations team, in which each XSEDE Service Provider is connected to a Chicago-based hub at 10 gigabits per second and has a second 10 gigabit per second connection to another national research and education network.
 * Specialized community-provided services, provided through the XSEDE Federation, that serve a particular function (e.g. gateway development, education, training, etc.) and allow for rapid innovation and experimentation.
 * Advanced cybersecurity to ensure that XSEDE resources and services are easily accessible to users with protection against and quick mitigation to cyber-attacks.
 * Training, Education, and Outreach through the Community Engagement & Enrichment (CEE) team that expand participation in XSEDE-based projects, curriculum development, and traditional training opportunities.
 * Advanced support for novel and innovative projects.
 * A fellowship program that brings Campus Champions to work closely with XSEDE advanced user support staff.

Organization
The XSEDE project is a collaborative partnership of 19 institutions, led by:


 * The National Center for Supercomputing Applications (NCSA) at the University of Illinois
 * Pittsburgh Supercomputing Center (PSC), a joint effort of Carnegie Mellon University and the University of Pittsburgh
 * Texas Advanced Computing Center (TACC) at The University of Texas at Austin
 * San Diego Supercomputing Center (SDSC) at the University of California, San Diego

XSEDE uses a balanced governance model that includes strong central management providing rapid response to issues and opportunities, and openness to genuine stakeholder participation from NSF, User Advisory Committee (UAC), Service Provider Forum (SPF) and external advisors who form the XSEDE Advisory Board (XAB).

Allocated Resources
Almost all U.S.-based university and non-profit researchers are eligible to request allocations via XSEDE for access to more than a dozen computational and storage resources. Visit the XUP Resource Information page for detailed descriptions of the resources available as well as for instructions on how to request an allocation.

Researchers requiring large amounts of computing power for tightly coupled MPI, OpenMP, and hybrid programs should look to XSEDE-allocated high-performance computing (HPC) resources. For massively parallel jobs that require far less communication and synchronization, researchers may want to consider high-throughput computing (HTC) options. Additional specialized systems run GPGPU codes, memory-intensive problems, visualization, data analytics, and research clouds. Many computing resources also provide Science Gateway capabilities. XSEDE-allocated storage resources are available to satisfy most users' practical needs. Several XSEDE service providers also host storage platforms providing services such as data management, data collections hosting, and large-scale persistent storage.

Other Ecosystem Resources
XSEDE provides other opportunities for service providers to connect resources to the ecosystem and engage with the broader service provider community. Some providers, including NCAR and NCSA, use the XSEDE-hosted XRAS software-as-a-service to manage separate allocation processes for their resources. Other providers are leveraging XSEDE's single sign-on (SSO) hub to manage access to their resources. Many providers join the XSEDE ecosystem to take advantage of XSEDE-provided software toolkits and other integrated services.