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CLIO components shipped between October 8 and November 13, 2026. CLIO Core 2.3 brings its GPU runtime up on Intel GPUs, CLIO Agent 0.9.6 runs scripts against its own tools and keeps long jobs in the background, and Agent Marketplace 0.7 adds CLIO Data for HDF5, netCDF-4, ADIOS2 and Parquet. The latest versions are Agent 0.9.7, GACT TUI 0.13 and Marketplace 0.8.
Three releases followed 3.2 between October 15 and November 12, 2026. Version 3.3 indexes the HDF5 archive through per-ChronoGrapher manifest logs, and 3.4 adds opt-in durable writes that return only after the event is on disk in ChronoKeeper's write-ahead log. Version 3.5 moves to Spack 1.2.2, Mercury 2.4.1 and Margo 0.24.4, so all servers and clients must upgrade together.
The paper by Lihan Hu, Xiaoyang Lu, Xian-He Sun and Peng Jiang was presented on October 22, 2026, at the 35th International Conference on Parallel Architectures and Compilation Techniques, held at the Discovery Partners Institute in Chicago. It improves data reuse across blocks so that block-sparse transformers run more efficiently on GPUs.
At SC26 in Chicago, November 16 to 19, GRC will give six workshop talks, four posters and one paper, all on the SC26 page. Bogdan Nicolae and Jaime Cernuda will demo SPOTTER-AI live on Wednesday, November 18, 12:00 to 1:00 PM CST, at DOE booth #4829, demo station 2. "Trigger, Render, Reason" is in a livestreamed Papers in Conversation session closing with an author panel, and Anthony Kougkas will co-lead an HDF5 BoF with a CLIO demo.
Released October 2, 2026, after 3.1.0 and 3.1.1 in September, the version has each ChronoKeeper hold a sealed chunk until ChronoGrapher confirms it is in the HDF5 archive, and replays read unarchived events directly from the keepers. Clients built against 3.1 must be rebuilt because the protocol version changed.
The papers appeared in the main track of the 22nd IEEE International Conference on eScience in Naples, Italy, from September 28 to October 2, 2026. They cover fault injection for testing recovery in agentic workflows, portable semantic search for HPC, data staging while an agent is still reasoning, and derived-quantity operators for in situ processing in I/O libraries.
Jaime Cernuda and Anthony Kougkas brought two posters to the annual meeting of NSF CSSI, CyberTraining and SCIPE principal investigators, held September 13 to 15 in Rockville, Maryland. One covers IOWarp CLIO, a context layer for I/O; the other covers ChronoLog, the log and activity store funded by NSF award OAC-2104013.
Both projects were selected in July 2026, with GRC as a full co-principal investigator. SPOTTER-AI, led by Bogdan Nicolae at Argonne National Laboratory, traces provenance and attributes threats in Genesis workflows; PORTUS, led by Nathan Tallent at Pacific Northwest National Laboratory, builds performance models that help coding agents port workflows across HPC and cloud. GRC contributes the CLIO stack from IOWarp.
Eight CLIO components shipped new versions in August 2026, led by CLIO Core 2.2.1, CLIO Kit 2.10.5 and CLIO Agent 0.9.1.1. Together they harden remote execution, MCP server mounting, provenance and packaging across the agent stack.
Version 1.8 ships execution profiles, kept current by the maintainers, for scientific applications, services and I/O interceptors, the same ones used in a cross-cluster evaluation campaign. It also reconciles Slurm jobs that never reached the Jarvis runtime against live and accounting state.
The article by Nathan Tallent of PNNL, Meng Tang, Anthony Kougkas, Xian-He Sun and coauthors appears in volume 37, issue 12 of IEEE Transactions on Parallel and Distributed Systems. DataFlowDrs automates performance optimization of the data that moves between tasks in HPC workflows.
Version 0.2.0 of the workflow I/O analysis tool moves to Python 3.10 through 3.13, since every interpreter 0.1.1 supported had reached end of life. Small views now compute in pandas instead of Dask, cutting one DFTracer analysis from 68 to 19 seconds, and the release adds a web app.
Both papers appear in the proceedings of the 35th International Symposium on High-Performance Parallel and Distributed Computing, held in Cleveland from July 13 to 16, 2026. PKAS, led by Jie Ye and presented on July 14, schedules LLM and transformer inference by predicting KV cache use; Metis, coauthored by Neeraj Rajesh, uses agents to synthesize knowledge that explains I/O performance in HPC systems.
The article, coauthored by Xian-He Sun, was published online on July 8, 2026, in ACM Transactions on Storage. NVREC is a recommendation system built for non-volatile memory that can recover after a failure while keeping high performance.
Released May 29, 2026, the major version finalizes the 3.0 client API and adds a recording service for ChronoPlayer. Two new plugins, ChronoSQL and ChronoPubSub, run SQL-style queries over stored events and deliver events by publish-subscribe, and the ChronoLog MCP server now lives in the main repository.
Both papers appeared at the 40th IEEE International Parallel and Distributed Processing Symposium in New Orleans, May 25 to 29, 2026. Xiaoyang Lu and coauthors accelerate long-sequence LLM inference with processing-in-memory and hybrid sparse attention, and Meng Tang and coauthors, with Nathan Tallent of PNNL, characterize task-to-data exchange to guide I/O-aware scheduling of HPC workflows.
Kougkas spoke on May 20, 2026, the second day of the 7th IFSH High-Throughput Sequencing Symposium in Burr Ridge, Illinois, organized by Illinois Tech's Institute for Food Safety and Health. His talk, "IOWarp: Intelligent Data Management to Accelerate Food Safety Genomic Research", showed how IOWarp speeds up data handling in genomic analysis.
The posters were shown at the 13th Greater Chicago Area Systems Research Workshop on May 11, 2026, at Northwestern University in Evanston. Topics ranged from the I/O behavior of LLM agents and speculative multi-agent dispatch to KV cache survivability, tiered logging with ChronoLog and resilience for real-time HPC data streams.
The open-source connector is a read-only HDF5 Virtual Object Layer plugin, so unmodified HDF5 programs can open FITS files without converting them. The public repository documents validation against HDF5 1.14.x and 2.1.x and a 162-test suite.
The invited talk to Earth Science Information Partners, "From Storage Optimization to Context Orchestration: Context Engineering for Environmental Data Systems", covered context engineering for HDF5, NetCDF and Zarr data, CLIO Kit, and MCP servers for environmental data integration. ESIP published the recording.