Manage Allocations
 

Once your project has received its allocation/s, XSEDE gives the PI, co-PIs, and Allocation Managers a number of options to ensure the flexibility needed to complete their research objectives. The following options and actions are available to PIs, co-PIs and Allocation Managers via the XRAS system. Some allocation options or actions may not always be available, depending on current policies or timelines.

Adding & Removing Users

PIs may share their allocations by adding (or removing) users to the project for any number of collaborators. Each user must first create their own XSEDE User Portal (XUP) account. Research collaborators may include graduate and undergraduate students, as well as colleagues based outside of the U.S. PIs or their delegates may add or remove users at will.

PIs on Education allocations may contact the XSEDE Help Desk for assistance in establishing accounts for large groups of students under their allocated project.

Monitoring Allocation Usage

To keep tabs on how your allocations are being consumed by your project team, log into the XSEDE User Portal and select "My XSEDE" -> Allocations/Usage to list all your projects and corresponding resource allocations.

For each project listed, authorized users can view project usage, monitoring storage, SUs used, and the SU burn rate. PIs and allocation managers can also view usage per project member and can download this information in graphical or CSV format.

Renewing Allocations (Renewals)

XSEDE allocations are typically made for one year. To continue using XSEDE-allocated resources beyond that year, you must submit a "Renewal" request. You should time your request properly to ensure continuous access from your current allocation period into the renewal period.

Research: Research allocations may be renewed each year, usually on the anniversary of the submission of your prior request. See the Research Allocation Submission Schedule to plan your submission. Submit your renewal during the appropriate window to ensure your renewal begins on the desired date. Instructions for Renewals are the same as for New requests, with the addition of a progress report and publications resulting from the current or prior allocation periods. XSEDE allows Renewals up to two years after expiration of the original allocation.

Startups: In most cases, Startup allocations cannot be renewed. To continue computing, you should submit a new Research request according to the instructions provided. Research requests can be submitted during any Research opportunity open during your Startup allocation period. Some exceptions apply, contact help@xsede.org to see if your situation qualifies.

Education: Education requests can be renewed anytime within 90 days of expiration.

Note: For all allocation types, you can submit an Extension request for up to six months of additional calendar time, but no additional allocation units.

Managing Allocations

Actions on an allocation:

Advances

Once you have finalized your Research request, you can request an advance of up to 10% of your requested allocation in anticipation of a favorable review. Usage against this advance will be deducted from your eventual allocation award.

Approval of the advance is subject to review by the Service Provider and the availability of sufficient Service Units on the selected resource(s).

Advances are not accepted within three weeks of the next Research allocation start date (January 1, April 1, July 1, or October 1).

Extensions

Projects that encounter problems, such as unexpected staffing changes, in consuming their allocations within the initial 12-month period can request an extension to their allocation end date. The most important consideration for PIs is whether they wish to continue computing after the expiration of their current allocation period.

For a given allocation, PIs may request a single extension, extending the expiration date by up to six months. The PI will be asked to specify the project number and the length of the extension (1-6 months), along with a brief reason for the extension. Extensions do not require other formal documentation. If you plan to follow the extended allocation with the submission of a Research request, you should align the duration of the extension request with the timeline for Research awards.

Extensions apply to all current resource allocations on the same project. PIs cannot extend some allocations and submit overlapping Renewal requests for other resources.

After an project has been extended six months, you must submit a Renewal request to continue your XSEDE project, even if the project still has unused allocation units. The Renewal request should explain the reasons for the unused allocation.

Transfers

PIs, co-PIs, or Allocation Managers, can request that allocated time be transferred from one platform to another, subject to resource availability on the target resource. No formal documentation is required. For Research projects, such transfers are subject to conversion of units according to established weighting factors. On Startup allocations, transfers are subject to the size restrictions for the target resource.

At this time, it is not possible to convert allocable units on one resource type to units on another resource type. For example, storage allocations cannot be converted to compute allocations.

Converting Service Units Between Resources

The most common situation is a transfer of SUs from one compute resource to another. When transferring allocated units from one compute resource to another, a conversion is applied to normalize the relative computational power of the two resources.

The default conversion is based on a formula derived from the resource's performance on the HPL benchmark. Users can review the standard conversions using the SU Conversion Calculator below.

Alternate conversion rates. If a PI has performance results of relevant codes on the source and target resources in a transfer request, the PI can request a conversion factor based on that code's performance be applied. The alternate conversion rate should be documented and noted in the transfer request.

Supplements

Supplement awards depend upon availability of resources and are severely limited when allocation awards at the previous XRAC meeting were reduced to eliminate oversubscriptions.

A supplement is a request for additional resources during an existing allocation's one-year time frame. Its purpose is to support changes in the original computational research plan that are required to achieve the scientific goals of the project. This may include altered or new projects or support for projects proceeding more rapidly than anticipated or that require more resources than anticipated. Supplements are not a mechanism to acquire additional resources for awards that were recommended for less than the amount originally requested (see Appeals).

Supplement Requests are accepted at any time. Smaller requests are generally considered within three weeks of submission. Large supplement requests are reviewed by the XRAC along with new and renewal Research requests at the next meeting.

Supplemental allocation requests for Startup and Education projects are capped at the Startup limit for the particular resource. Supplement requests for Research projects have no limit.

In practice, to ensure a group can continue computing without an interruption, a PI should not wait until an allocation is completely spent before submitting a Supplement request.

Preparing a Supplement Request

Information required for a Supplement is similar to that required for a New or Renewal request of the same type. The submission form should pre-populate many fields based on the original request; please correct any information that has changed.

As with new or Renewal requests, all publications or other citable outcomes resulting from the current allocation should be added to the PI's or users' XUP profiles prior to submitting the Supplement request and linked to the submission where requested.

Required Documents

  • Main Document: The Main Document of a Supplement to a Research project is limited to five pages and should contain the following: Minimal information about the science and methodologies concerning the supplement; a description of new projects or why more resources are needed to complete the project in progress; a work justification that details the new resource requirements; and any new efficiencies in codes or methods.

    Do not upload the Main Document of the original request. A Supplement request should only addresses the concerns of the additional allocation.

  • Progress Report: A Progress Report is required and should contain any new scientific discoveries from the current allocation, any computational accomplishments of the previous computational work plan (including the associated allocation amounts used), and any contributions to other research efforts and fields of science.

Appeals

Awards from Appeals depend upon availability of resources and are severely limited when allocation awards at the previous XRAC meeting were reduced to eliminate oversubscriptions.

If the XRAC has requested that the PI give more details or justification before the project can be allocated additional time, the PI should submit an appeal. Also, a PI may submit a rebuttal on a review criticism as an appeal. The appeal submission should specifically address information that the reviewers have requested or have criticized.

Appeals for Research requests are accepted in XRAS for four weeks after the outcomes of the XRAC meeting are posted. Due to high demand for allocated resources, large allocations resulting from appeals may not be awarded until the next XRAC meeting.

Appeals are not accepted for rejected proposals; PI's should submit an improved request during the next Research opportunity.

Appeals are also not accepted for rejected Startup or Education requests. In the case of a rejection, PIs for those types should submit a revised Startup or Education request.

SU Conversion calculator goes here

Last update: May 17, 2017