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DLIO adaptor hardcodes the 32 MiB multipart threshold — no way to force single-PUT for large objects

Status: Open.

#715 In mlcommons/storage;

· gaikwadabhishek opened on Jul 8, 2026

Unet3d Object: s3dlio per-process GET throughput

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#701 In mlcommons/storage;

· bissantz opened on Jul 7, 2026

Support for OpenMPI 5.x: --npernode flag removed in kv_cache and vectordb workloads

enhancementNew feature or requestNew feature or request

Future

KVCache TF

VectorDB TF

Status: Open.

#698 In mlcommons/storage;

· wangjiale01 opened on Jul 7, 2026

[RetinaNet / DLIO] CLOSED-mandated dataset sizes trigger client-side livelock

Status: Open.

#697 In mlcommons/storage;

· cho4036 opened on Jul 7, 2026

Checkpoint write throughput is capped by CPU-side data generation, not storage (dgen-py under-threaded → Generation is the bottleneck)

Submission Invalidation

Status: Open.

#689 In mlcommons/storage;

· wolfgang-desalvador opened on Jul 6, 2026

Checkpoint write throughput regresses ~41% on POSIX/local_fs (mlpstorage 3.0.26 → 3.0.33) - Materially change of results

Submission Invalidation

Status: Open.

#682 In mlcommons/storage;

· wolfgang-desalvador opened on Jul 5, 2026

[Bug] MLPStorage Validation Fails with "Expected 6 run files, but found 12" for RetinaNet on Both B200 and MI355

Status: Open.

#679 In mlcommons/storage;

· xutao00090 opened on Jul 5, 2026

DLIO summary.json: host_memory_GB / host_cpu_count arrays are per-nnodes-slot, not per-host — positional access is broken

DLIO or mlpstoragerelated to code in mlpstorage or dliorelated to code in mlpstorage or dlio

Future

Status: Open.

#676 In mlcommons/storage;

· FileSystemGuy opened on Jul 5, 2026

DLIO local_changes: Make skip_head=True the default for large-record object-storage training (unet3d)

Status: Open.

Feature

#668 In mlcommons/storage;

· bissantz opened on Jul 3, 2026

[RetinaNet / DLIO] High-concurrency read path is restricted to object storage; POSIX gets 1×, creating up to 64× I/O-concurrency asymmetry under CLOSED

Status: Open.

#626 In mlcommons/storage;

· ByoungjunSeo opened on Jul 1, 2026

[VDB] recall is not meaningful because the dataset is uniformly random vectors

Status: Open.

#625 In mlcommons/storage;

· ByoungjunSeo opened on Jul 1, 2026

Multi-host (>1 client) object-storage training is broken: (A) S3 env not forwarded to remote MPI ranks, and (B) DLIO deadlocks during initialize() before the first training step

Status: Open.

Bug

#592 In mlcommons/storage;

· gaikwadabhishek opened on Jun 30, 2026