Advancing Innovation

Following its highly successful Extreme Science and Engineering Discovery Environment (XSEDE) project, the National Science Foundation is excited to introduce new advances in innovative cyberinfrastructure with ACCESS.

On September 1, 2022, XSEDE will transition to the ACCESS program, expanding a national research cyberinfrastructure (CI) ecosystem to include even more researchers, scholars and scientific domains.

The program is currently comprised of four independently managed yet highly cooperative projects. Additionally, the ACCESS Coordination Office (ACO) supports the collective operation of the ACCESS projects, endeavoring to provide seamless experiences across a high-performance, innovative array of national computational resources.

The ACO will provide a more robust website when the program becomes fully operational on September 1. Until then, here’s how you can prepare for the transition.


Within ACCESS, we’re transforming the allocations environment and democratizing access to the national cyberinfrastructure. Over the next five years, we’ll be rolling out many new features and developing a suite of Innovative Pilot projects to better meet the needs of a larger and more diverse community of researchers and ecosystem of resources. But our first priority is ensuring the XSEDE community is able to continue their ongoing activities without interruption.

If you currently have an allocation awarded through XSEDE, you may keep working with your allocation when XSEDE transitions to ACCESS on September 1. Nothing will change for you yet. If you need a new allocation or as your existing allocations expire, the ACCESS Allocations Marketplace will simplify the request and review process through four allocation tiers.

If you have a large-scale allocation ending December 31, 2022, you’ll be able to submit a renewal request under XSEDE rules during the usual September 15–October 15 submission window. For the largest-scale projects, the allocations process will look and feel much like the current XSEDE process throughout the ACCESS period.

You can find a sneak peek of what to expect from allocations at the Advance to ACCESS site. The allocations team is currently looking for reviewers and is taking your feedback via this form.


An FAQ website provides information on how support for ACCESS users will be structured and how to get involved.

Four tiers will enable ACCESS users to get the support needed to make the most of your allocations. The tiers will offer varying levels of support, including tools that make it easy to use ACCESS, detailed documentation, examples and FAQs, tiers to connect with experts, and assistance in getting your project up and running effectively on ACCESS resources. The support team is also working with the Campus Champions Leadership Team on the transition from XSEDE.


ACCESS uses agile mechanisms to integrate the rapidly diversifying set of non-traditional resources that previously have been left on the fringes of the national cyberinfrastructure. It builds upon the successes of its predecessors and moves toward a more agile, dynamic and inclusive ecosystem. ACCESS introduces and coordinates a framework-based approach to ecosystem-wide integration using step-by-step integration roadmaps and modular concepts that enable entirely new kinds of cyberinfrastructure resources to fully participate in the coordinated national cyberinfrastructure.

On September 1, XSEDE user names and passwords will stay the same in ACCESS. The Globus subscriptions for Resource Providers’ Globus endpoints will continue to be funded by ACCESS through August 2023; the team is looking for feedback on what the follow-on should be. While DNS entries will persist for some time, any RPs interested in having resource subdomains (e.g., {subdomain} created or delegated to them should submit a ticket requesting the new domain. The SSO Hub will no longer be available – alternative login approaches are being planned and will be posted prior to September 1. The goal is to simplify access to resources and continuously develop the next generation of research scientists.


This team, which has been aligned with XSEDE throughout its lifespan, will continue development of its popular XDMoD interface, hoping to open it up for broader use. They will use the many years of data from XSEDE to inform and build AI and hope to better understand the national ecosystem, incorporating more systems at non-R1 universities.

Research CI is a major catalyst for discovery and innovation, playing a critical role in ensuring U.S. leadership in science and engineering, as well as economic competitiveness and national security consistent with the NSF mission. NSF’s Office of Advanced Cyberinfrastructure has laid out a blueprint for this vision, calling for broad availability and innovative use of an agile, integrated, robust, trustworthy and sustainable CI ecosystem that can drive new thinking and transformative discoveries in all areas of S&E research and education.

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