DOE ASCR Leadership Computing Challenge (ALCC)

US Department of Energy, Office of Advanced Scientific Computing Research. Evidence checked 11 October 2026.

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Who can apply?

Funded researchers affiliated with a university, laboratory, government agency or industry whose project supports a Department of Energy mission or research priority. DOE funding is not required, but approved project funding from another source is required, together with a relevant DOE office or priority and a programme manager or project sponsor contact.

How do I take the next step?

Confirm that the project fits a DOE mission priority and the requested machine, then prepare the single-stage proposal with the required funding, sponsor, computational plan, code, security and project narrative information. Submit through the official ALCC application dashboard during a published call. Proposals receive science and computational review before an internal DOE selection. An award still requires the applicable facility terms before system use.

Recorded deadline

Recorded deadline: The 2026-2027 proposal deadline closed on 26 January 2026 at 8 p.m. ET. That allocation cycle runs from 1 July 2026 to 30 June 2027; the next call date is not yet recorded here.

Check the official programme before applying. A recorded region is not a decision about your eligibility, and an allocation is not guaranteed.

Evidence and limits

• The checked eligibility guidance accepts funded researchers from universities, laboratories, government agencies and industry. DOE funding is not required, but a recognised funding source and a project aligned with a DOE mission or research priority are required. Source Suggest a correction
• The 2026-2027 call uses one proposal rather than a pre-proposal stage. It requires the requested machine and physical node-hours, code and workflow evidence, funding and sponsor information, a security questionnaire and the prescribed narrative materials. Source Suggest a correction
• Selection considers research quality, responsiveness to DOE and national priorities, and computational merit. Proposals receive external scientific review and assessment by facility computational experts before an internal ALCC working group makes selections. Source Suggest a correction
• The checked 2026-2027 call closed on 26 January 2026 at 8 p.m. ET. Its allocation year runs from 1 July 2026 to 30 June 2027. Some page copy still says proposals are being solicited, so the dated deadline is treated as controlling and no later call is inferred. Source Suggest a correction
• Applicants can request up to three allocation years, but years two and three require annual renewal. Awardees must sign the applicable facility terms before access and unused hours can be reduced during the allocation year. Source Suggest a correction

Eligibility, the funding boundary, proposal contents, review, allocation period and the closed 2026-2027 call were checked on 11 October 2026. Published machine pools and request caps are not current availability and are not totalled here. Recheck the official call and cap table before preparing a proposal.

This page reuses the directory's recorded evidence and check date. A new page does not mean the programme has been checked again.

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Compare other routes

Other recorded programmes of this type, in directory order rather than a ranking:

• EuroHPC Extreme Scale Access · EU
• EuroHPC Benchmark and Development Access · EU
• EuroHPC AI for Science and Collaborative EU Projects · EU

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