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I’m testing GPFS (Spectrum Scale) with IOR. What are the optimal parameters to maximize aggregate throughput?

Status: Open.

#538 In hpc/ior;

· AdaAibaby opened on May 27, 2026

Add task to processor mapping to output

Status: Open.

#534 In hpc/ior;

· jschwartz-cray opened on Mar 5, 2026

IOPS mismatch with [Max|Min|Mean](OPS)

Status: Open.

#532 In hpc/ior;

· santos-lucas opened on Feb 10, 2026

Build of 4.0.0 fails with GCC 15

Status: Open.

#530 In hpc/ior;

· gruenich opened on Sep 16, 2025

why "ERROR: block size must be a multiple of access size"

Status: Open.

#520 In hpc/ior;

· roblatham00 opened on May 2, 2025

Why does the performance of Tree creation and removal decrease after adding parameter -u ?

Status: Open.

#513 In hpc/ior;

· pyworker opened on Mar 12, 2025

mdtest: Add summaryFormat:JSON and output file: summaryFile support in the commnd line

Status: Open.

#509 In hpc/ior;

· kdhaduk81 opened on Feb 11, 2025

Syntax Error with IOR Benchmarks Parameters

documentationBetter documentation requiredBetter documentation required

Great First ContributionThe issue is marked to be a contribution that has is suitable for prospect contributors. Thank you!The issue is marked to be a contribution that has is suitable for prospect contributors. Thank you!

Status: Open.

#499 In hpc/ior;

· kaaviyau opened on Sep 18, 2024

Excessive file fragmentation on parallel file creation

Status: Open.

#496 In hpc/ior;

· bolausson opened on Aug 15, 2024

[macOS 14.5]ld: unknown options: --enable-new-dtags -rpath=check/lib64 --enable-new-dtags -rpath=check/lib64

Status: Open.

#494 In hpc/ior;

· MartinJewski opened on Jun 21, 2024

Build issues for GPU Direct Storage (GDS) enabled IOR

Status: Open.

#486 In hpc/ior;

· casparvl opened on May 6, 2024

Summary OPs wrong calculation

Status: Open.

#478 In hpc/ior;

· mirimirima opened on Feb 21, 2024