E3SM-Project/scorpio

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A high-level Parallel I/O Library for structured grid applications

Stars: 22
Forks: 20
Open beginner issues: 0
Indexed issues: 99
Avg merge: 12d 19m
Merged PRs (30d): 1

Dominant language: C++
License: No license data
Last GitHub push: Sep 8, 2026
Latest indexed: Sep 15, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Open All

99 open issues indexed

Remove unnecessary coll operations when querying info Open

bug Low Priority Perf

E3SM-Project/scorpio#12 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add memory profiling in PIO2 Open

enhancement

E3SM-Project/scorpio#31 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
pio_sync_tests fails on Theta with iodesc->maxiobuflen <= 0 Open

bug High Priority Next Release

E3SM-Project/scorpio#32 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
No need to build micro timers code if PIO_MICRO_TIMING is OFF Open

enhancement Low Priority

E3SM-Project/scorpio#35 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add CAM grids to test suite Open

enhancement Low Priority

E3SM-Project/scorpio#47 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add MPAS grids to test suite Open

enhancement Low Priority

E3SM-Project/scorpio#48 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Implement "soft close" Open

enhancement High Priority Perf

E3SM-Project/scorpio#51 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Convert perl util scripts to python Open

enhancement Low Priority

E3SM-Project/scorpio#55 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
I/O replay tool Open

enhancement

E3SM-Project/scorpio#58 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Optimize PIO write path Open

enhancement High Priority Perf

E3SM-Project/scorpio#61 · 0 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Asynchronous data rearrangement Open

enhancement High Priority Perf

E3SM-Project/scorpio#62 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add support for PnetCDF vard interface Open

enhancement Perf

E3SM-Project/scorpio#66 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Make sure we have all the necessary hints for PnetCDF Open

enhancement High Priority Next Release Perf

E3SM-Project/scorpio#79 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add a PIO_IOTYPE_ANY iotype Open

enhancement Next Release

E3SM-Project/scorpio#84 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Some ctests are only enabled when using PIO_USE_MALLOC Open

bug

E3SM-Project/scorpio#92 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Disable bget memory statistics with malloc() Open

enhancement Low Priority

E3SM-Project/scorpio#97 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add option to set PIO buffer pool limit Open

enhancement

E3SM-Project/scorpio#98 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Improve PIO developer documentation Open

Low Priority

E3SM-Project/scorpio#100 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Unable to set buffer size limit to 0 in PIO2 Open

bug

E3SM-Project/scorpio#103 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add a pio config tool Open

enhancement Low Priority Next Release

E3SM-Project/scorpio#105 · 1 comment · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Add more fortran tests for Asynchronous I/O service Open

enhancement

E3SM-Project/scorpio#108 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Invalid var_desc_t type handle found in pio_buf_lim_tests Open

bug

E3SM-Project/scorpio#110 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Avoid creating MPI derived datatypes whenever possible Open

enhancement High Priority Perf

E3SM-Project/scorpio#114 · 0 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Consolidate checks for record variables Open

enhancement Low Priority

E3SM-Project/scorpio#118 · 7 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Adding upper bound for number of I/O processes Open

enhancement High Priority Next Release Perf

E3SM-Project/scorpio#125 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add more checks for decomps provided by user Open

enhancement Low Priority Next Release

E3SM-Project/scorpio#154 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Support 64-bit dim lengths in pio_initdecomp Open

enhancement Low Priority

E3SM-Project/scorpio#156 · 0 comments · 2 reactions · 1 assignee · Indexed Sep 15, 2026
Investigate performance of pio inq functions Open

enhancement High Priority Perf question

E3SM-Project/scorpio#158 · 2 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Add PIO_OFFSET* types to PIO1 and PIO2 Open

enhancement High Priority

E3SM-Project/scorpio#164 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Port PIO2 to Summit Open

enhancement High Priority Next Release

E3SM-Project/scorpio#167 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Very slow IO time when writing sub-hourly data Open

E3SM-Project/scorpio#168 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Move from custom data structures to STL Open

enhancement High Priority Perf

E3SM-Project/scorpio#169 · 1 comment · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Add more documentation on ADIOS Open

ADIOS Next Release

E3SM-Project/scorpio#172 · 0 comments · 0 reactions · 3 assignees · Indexed Sep 15, 2026
Fix PIO2 test failures on Summit Open

High Priority Next Release

E3SM-Project/scorpio#188 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
PIO1 fails on box_rearrange::compute_dest for a high-res E3SM G case Open

bug High Priority Next Release PIO1_deprecated

E3SM-Project/scorpio#189 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
pio_unit_test fails during print Open

bug Low Priority

E3SM-Project/scorpio#190 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Do we need nc_initialize()/nc_finalize() in PIO? Open

Low Priority question

E3SM-Project/scorpio#200 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Adding static analysis for PIO Open

Low Priority question

E3SM-Project/scorpio#201 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Adding version check for NetCDF fortran library Open

enhancement Low Priority

E3SM-Project/scorpio#206 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Allow running tests in parallel Open

enhancement Low Priority

E3SM-Project/scorpio#208 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add new interface that supports setframe+read/write Open

enhancement

E3SM-Project/scorpio#214 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add support for NetCDF compression in parallel Open

enhancement Low Priority

E3SM-Project/scorpio#221 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Cleanup GPTL timers Open

enhancement High Priority Next Release

E3SM-Project/scorpio#224 · 0 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
ADIOS flush Open

ADIOS enhancement High Priority Next Release

E3SM-Project/scorpio#228 · 0 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
GCC warnings on blanket SAVE statement when MPI Fortran module is disabled Open

E3SM-Project/scorpio#229 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Support I/O communicator from the user Open

enhancement Low Priority

E3SM-Project/scorpio#244 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Move from fortran modules to headers for 3rd party libs Open

enhancement Low Priority

E3SM-Project/scorpio#256 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
include PIO_TYPENAME in error message Open

enhancement Next Release

E3SM-Project/scorpio#262 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Add overloads for Scorpio C interfaces that use NetCDF types Open

enhancement Next Release

E3SM-Project/scorpio#273 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Porting Scorpio fortran tests to C/C++ Open

enhancement Low Priority

E3SM-Project/scorpio#285 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026

E3SM-Project/scorpio

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