llnl/scr

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SCR caches checkpoint data in storage on the compute nodes of a Linux cluster to provide a fast, scalable checkpoint / restart capability for MPI codes.

Stars: 108
Forks: 37
Open beginner issues: 0
Indexed issues: 99

Dominant language: C
License: No license data
Last GitHub push: Apr 6, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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99 open issues indexed

Feature Request: Online Scalable Restart Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

llnl/scr#614 · 4 comments · Opened Jun 12, 2026
SCR_Have_restart does not always return most recent restart Open

llnl/scr#603 · 2 comments · 1 assignee · Opened Mar 17, 2025
SCR v3.1 Release Notes Open

llnl/scr#590 · 3 comments · 1 reaction · 1 assignee · Opened Jun 5, 2024
Using SCR bootstrap in an external build. Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

llnl/scr#588 · 1 comment · Opened Jan 31, 2024
scripts: query environment to determine auto resource manager and job launcher Open

python

Difficulty 5/5 Over a week Newbie friendliness 35/100

llnl/scr#579 · Opened Nov 2, 2023
scripts: improve job launcher interface Open

python

llnl/scr#578 · 1 assignee · Opened Nov 2, 2023
python: improve integration with user job batch scripts Open

python

llnl/scr#560 · 1 assignee · Opened Oct 23, 2023
flux: test scalable restart correctness and performance Open

llnl/scr#553 · 1 comment · 1 assignee · Opened Oct 12, 2023
SW4: error when deleting a directory from the parallel file system Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

llnl/scr#542 · Opened May 3, 2023
Request to direct SCR log messages to stderr or a custom file descriptor Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

llnl/scr#541 · Opened May 3, 2023
SW4: fetch is failing to find files and/or add them to AXL for transfer Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

llnl/scr#540 · Opened May 3, 2023
Restart with a different number of ranks Open

llnl/scr#535 · 1 assignee · Opened Feb 22, 2023
Investigate fire-and-forget mode for async flush Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

llnl/scr#531 · Opened Feb 14, 2023
flock failure in /autofs on ORNL Crusher Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

llnl/scr#510 · Opened Oct 26, 2022
nnf-dm - Add configuration option for DM server socket name Open

llnl/scr#507 · 1 assignee · Opened Jul 26, 2022
possible scheduler interface Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

llnl/scr#506 · Opened May 26, 2022
Export CMake targets Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

llnl/scr#497 · 2 comments · Opened Mar 8, 2022
shared cache: parallelize the scavenge operation Open

llnl/scr#494 · 2 comments · 1 assignee · Opened Mar 5, 2022
shared cache: address O(P) scalability of SCR metadata files Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

llnl/scr#493 · Opened Mar 5, 2022
shared cache: add shared-file support to AXL to parallelize copy Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

llnl/scr#489 · Opened Mar 4, 2022
define SCR_Start_input API Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

llnl/scr#485 · Opened Feb 27, 2022
shared-cache - enable shared-cache support in SCR Open

enhancement

llnl/scr#481 · 2 comments · 1 assignee · Opened Feb 23, 2022
Incorrect error message occurs when flush operation is done to empty file Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

llnl/scr#477 · 1 comment · Opened Feb 9, 2022
API to query status of async flushed datasets Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

llnl/scr#476 · Opened Feb 9, 2022
cmake minimum version Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

llnl/scr#458 · Opened Nov 4, 2021
Static build fails with DTCMP/LWGRP error when examples enabled Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

llnl/scr#455 · 1 comment · Opened Nov 2, 2021
Static build fails with BBAPI enabled Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

llnl/scr#453 · 1 comment · Opened Oct 28, 2021
tests: expands tests for components Open

testing

Difficulty 4/5 3-5 days Newbie friendliness 35/100

llnl/scr#447 · Opened Oct 18, 2021
tests: reduce number of nodes to run tests Open

testing

Difficulty 4/5 3-5 days Newbie friendliness 35/100

llnl/scr#446 · 2 comments · Opened Oct 18, 2021
bootstrap.sh fails to compile with clang/6.0.0 on quartz Open

llnl/scr#436 · 3 comments · 1 assignee · Opened Sep 27, 2021
gitlab spack build tests are failing Open

testing

Difficulty 4/5 3-5 days Newbie friendliness 20/100

llnl/scr#430 · Opened Sep 4, 2021
allow users to select the number of trailing underscores in Fortran bindings Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

llnl/scr#426 · 3 comments · Opened Sep 3, 2021
watchdog expects flush file to list a single location Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

llnl/scr#413 · Opened Jul 26, 2021
python: Add and double check docstrings for ResourceManager and JobLauncher Open

python

Difficulty 4/5 3-5 days Newbie friendliness 35/100

llnl/scr#409 · Opened Jul 22, 2021
python: pdsh -Rexec and clustershell ExecWorker Open

python

Difficulty 5/5 Over a week Newbie friendliness 25/100

llnl/scr#404 · Opened Jul 22, 2021
python: Generalize node test list Open

python

Difficulty 5/5 Over a week Newbie friendliness 25/100

llnl/scr#403 · Opened Jul 22, 2021
python: Generalize scr watchdog Open

python

Difficulty 4/5 3-5 days Newbie friendliness 35/100

llnl/scr#402 · 1 comment · Opened Jul 22, 2021
Provide an API to list datasets for SCR_CURRENT Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

llnl/scr#390 · Opened Jul 1, 2021
Add parameter to inform SCR to drop all datasets Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

llnl/scr#389 · Opened Jul 1, 2021
Update build docs for static links Open

llnl/scr#386 · 2 comments · 1 assignee · Opened Jun 28, 2021
update SCR_ASYNC_API in spack package Open

llnl/scr#361 · 6 comments · 1 assignee · Opened Jun 9, 2021
record control directory in file within prefix directory for postrun scripts Open

llnl/scr#358 · 1 assignee · Opened Jun 9, 2021
NFS caching between compute node and node running job script leads to inconsistent behavior Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

llnl/scr#337 · 2 comments · Opened May 26, 2021
Add automated tests for various SCR builds Open

testing

Difficulty 4/5 3-5 days Newbie friendliness 35/100

llnl/scr#333 · 10 comments · Opened May 22, 2021
Reduce redundant code between CMakeLists.txt and dist/CMakeLists.txt Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

llnl/scr#332 · Opened May 22, 2021
bootstrap.sh is not explained in developer's docs Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

llnl/scr#326 · 1 comment · Opened May 21, 2021
add valgrind and memcheck_all into test suite Open

testing

Difficulty 5/5 Over a week Newbie friendliness 25/100

llnl/scr#321 · Opened May 7, 2021
improve "make test" to run faster and be more portable Open

testing

llnl/scr#320 · 3 comments · 2 assignees · Opened May 6, 2021
drop zlib from pacakges that don't need it Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

llnl/scr#319 · 17 comments · Opened May 6, 2021
Option to only build static libs for components and SCR Open

llnl/scr#318 · 3 comments · 1 assignee · Opened May 1, 2021

llnl/scr

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