NSF NCAR

ncar-hpc-docs.readthedocs.io · Compute, Storage · 2 records · JSON

NSF NCAR Derecho Computefails: identityinstitutionno cardDwrite-gated
ncar glade (campaign / work / scratch) Storagefails: quotaemail?card?R

NSF NCAR Derecho Compute

fails: identityinstitutionno cardDwrite-gated

ncar-hpc-docs.readthedocs.io/en/latest/allocations/universit · national HPC allocation · compute/nsf-ncar-derecho · JSON · compare

Free tier	An Exploratory and Classroom allocation carries 500,000 Derecho core-hours and 1,500 Derecho GPU-hours, is accepted continuously, and requires "No external funding award", which the provider states explicitly in its funding eligibility column. A Small allocation raises that to 1 million core-hours and 2,500 GPU-hours and does require an NSF award. Derecho is 2,488 nodes with nearly 320,000 AMD EPYC cores plus 82 nodes holding 328 NVIDIA A100 GPUs, and access is "at no cost to you, your institution, or your research grants". unit hours; metered on wall-clock; continuous-small-allocation
Price	none stated
Per-object cap	not applicable
Retention	not applicable
Egress	not stated
Identity	institution not published
Limits	write-gated "To use Derecho, you must be a U.S.-based researcher, and your research must be in the Earth system sciences or related to Earth system science", so the half-million core-hours fail on both country and field before any funding question arises. source "To use Derecho, you must be a U.S.-based researcher, and your research must be in the Earth system sciences or related to Earth system science", so the half-million core-hours fail on both country and field before any funding question arises.
Binding	write-gated "To use Derecho, you must be a U.S.-based researcher, and your research must be in the Earth system sciences or related to Earth system science", so the half-million core-hours fail on both country and field before any funding question arises.
Interface	unknown inferred from the tooling the provider documents; not probed
Tooling	not stated
Composes with	Derecho composes with nothing in the file because the field restriction is absolute: the machine is for Earth system science, so the 500,000 core-hours are only usable as a climate, weather or geoscience workload, and a general data-science job would be a false application rather than a clever one.
Reliability	no reliability event recorded
Notes	The number is the largest free core-hour figure found that does not require a funding award, and the reason it is recorded as a refutation rather than capacity is one sentence about U.S. residency. The Data Analysis route on Casper accepts any funding source, which makes it the only part of the NCAR offer not tied to an award, but it is for analysing NCAR-hosted data rather than for arbitrary compute. Large allocations have no upper limit and are reviewed in March and September; the September 18, 2026 deadline is the next one after this reading. The corpus holds no NCAR, UCAR or Derecho record.
Evidence rung	documented
Checked	2026-10-22 (live); stale on 2026-11-21

Evidence (5)

date	source	what it proved
2026-10-22	ncar-hpc-docs.readthedocs.io/en/latest/allocations/universit	Exploratory and Classroom: Derecho 500,000 core-hours and Derecho GPU 1,500 GPU-hours, continuous, funding eligibility "No external funding award", quoted from the table
2026-10-22	ncar-hpc-docs.readthedocs.io/en/latest/allocations/universit	Small: Derecho 1 million core-hours and 2,500 GPU-hours, continuous, NSF award required, quoted from the table
2026-10-22	commons.ucar.edu/discussion/tools-you-can-use-derecho-superc	"Derecho boasts 2,488 nodes with nearly 320,000 AMD EPYC cores and 82 nodes with 328 NVIDIA A100 GPUs"; "access to these Derecho and other resources is provided at no cost to you, your institution, or your research grants", quoted
2026-10-22	commons.ucar.edu/discussion/tools-you-can-use-derecho-superc	"To use Derecho, you must be a U.S.-based researcher, and your research must be in the Earth system sciences"; "we can offer access to graduate students, postdocs, and new faculty without NSF funding", quoted
2026-10-22	ncar-hpc-docs.readthedocs.io/en/latest/allocations/universit	the Data Analysis allocation on Casper accepts "Any funding source" in the funding eligibility column, quoted

More fields (1)

{
 "wave2": {
  "class": "national-hpc",
  "free_tier_kind": "continuous-small-allocation",
  "shape": {
   "vcpu": null,
   "ram_gib": null,
   "gpu_class": "NVIDIA A100",
   "gpu_count": null
  }
 }
}

Unknown or withheld values (10)

$.egress.metered egress-unknown
$.egress.terms not-stated
$.identity_cost.detail process
$.interface interface-unknown
$.per_object_cap.notes process
$.per_object_cap.stated not-applicable
$.reliability_note none-observed
$.retention.notes process
$.retention.stated not-applicable
$.tooling not-stated

ncar glade (campaign / work / scratch) Storage

fails: quotaemail?card?R

ncar-hpc-docs.readthedocs.io/en/latest/storage-systems/glade · rejected-provider · storage/ncar-glade · JSON · compare

Free tier	Campaign Storage is the only large tier and it is allocation-request-gated for university projects. unit none; metered on none
Price	none stated
Per-object cap	not recorded
Retention	not recorded
Egress	not recorded
Identity	email (placeholder) not published
Binding	none no constraint of a named kind was recorded; the verdict rests on the quota sentence rather than on a named limit
Interface	unknown
Tooling	not recorded
Composes with	not recorded
Reliability	Campaign Storage is the only large tier and it is allocation-request-gated for university projects.
Notes	Campaign Storage is the only large tier and it is allocation-request-gated for university projects.
Evidence rung	reported
Checked	2026-10-21 (inherited); stale on 2026-11-04

Evidence (1)

date	source	what it proved
2026-10-21	ncar-hpc-docs.readthedocs.io/en/latest/storage-systems/glade	Campaign Storage is the only large tier and it is allocation-request-gated for university projects.

More fields (1)

{
 "dead_end": {
  "failure_class": "quota",
  "why": "Campaign Storage is the only large tier and it is allocation-request-gated for university projects.",
  "retry_when": null,
  "first_recorded": "2026-10-21"
 }
}

Unknown or withheld values (20)

$.chaining not-recorded
$.confidence_note withheld
$.egress.terms not-recorded
$.evidence[0].proved partly-held
$.extras.dead_end.retry_when process
$.extras.dead_end.why partly-held
$.free_tier.notes process
$.free_tier.stated partly-held
$.identity_cost.detail defaulted
$.identity_cost.kind identity-defaulted
$.interface interface-unknown
$.interface_detail withheld
$.limits_note process
$.notes partly-held
$.per_object_cap.notes not-recorded
$.per_object_cap.stated not-recorded
$.reliability_note partly-held
$.retention.notes process
$.retention.stated not-recorded
$.tooling not-recorded