
Tsutomu Miyashita developed and maintained high-performance computing (HPC) tutorials and technical documentation for the oracle-japan/ocitutorials repository, focusing on onboarding, performance tuning, and storage solutions for Oracle Cloud Infrastructure. He delivered in-depth guidance on core allocation, NUMA-aware placement, and benchmarking workflows using technologies such as OpenMPI, Slurm, and AMD EPYC. His work included integrating new hardware support, refining GPU and block storage tutorials, and updating performance profiling with tools like Score-P and Scalasca. By continuously aligning documentation with evolving OCI environments and software versions, Tsutomu improved usability, reduced onboarding friction, and enabled reliable, actionable HPC deployment for enterprise users.

October 2025 monthly summary for oracle-japan/ocitutorials focusing on delivering robust HPC tutorials and up-to-date environment guidance across Ubuntu and Oracle Linux stacks. Implementations spanned Slurm resource management and affinity enhancements on Ubuntu, expanded UCX/OpenMPI performance guidance, and comprehensive upgrades to Oracle Linux HPC environment setup and technical tips. The work emphasized accuracy, reliability, and actionable guidance for enterprise HPC deployments.
October 2025 monthly summary for oracle-japan/ocitutorials focusing on delivering robust HPC tutorials and up-to-date environment guidance across Ubuntu and Oracle Linux stacks. Implementations spanned Slurm resource management and affinity enhancements on Ubuntu, expanded UCX/OpenMPI performance guidance, and comprehensive upgrades to Oracle Linux HPC environment setup and technical tips. The work emphasized accuracy, reliability, and actionable guidance for enterprise HPC deployments.
2025-09 monthly summary for oracle-japan/ocitutorials: Delivered two major feature areas focused on OCI HPC onboarding and performance guidance, with substantial documentation improvements aligned to the new OCI UI. The work enhances onboarding efficiency, cross-region image handling, and performance optimization guidance for HPC workloads on OCI.
2025-09 monthly summary for oracle-japan/ocitutorials: Delivered two major feature areas focused on OCI HPC onboarding and performance guidance, with substantial documentation improvements aligned to the new OCI UI. The work enhances onboarding efficiency, cross-region image handling, and performance optimization guidance for HPC workloads on OCI.
Month: 2025-08 — OCI Tutorials (oracle-japan/ocitutorials) monthly update focusing on OCI HPC documentation for Ubuntu GPU clusters. Deliverables center on updating tutorials and technical tips to reflect current Ubuntu 24.04 HPC guidance, strengthening NCCL test instructions, clarifying HPC networking workflows, and aligning hardware/software references with BM.HPC.E5.144. Key content updates include software version references and cluster networking image selections to stay current with OCI HPC environments. The work is captured in two commits: dee4e9f4f29cbd5fa03698ff1dd34ee12aa79137 and 28bc18fbdac23622597877121760341bf470b265, which added new guidance and refreshed software versions. Overall, the changes improve onboarding, reduce setup ambiguity, and maintain documentation parity with hardware and software evolutions.
Month: 2025-08 — OCI Tutorials (oracle-japan/ocitutorials) monthly update focusing on OCI HPC documentation for Ubuntu GPU clusters. Deliverables center on updating tutorials and technical tips to reflect current Ubuntu 24.04 HPC guidance, strengthening NCCL test instructions, clarifying HPC networking workflows, and aligning hardware/software references with BM.HPC.E5.144. Key content updates include software version references and cluster networking image selections to stay current with OCI HPC environments. The work is captured in two commits: dee4e9f4f29cbd5fa03698ff1dd34ee12aa79137 and 28bc18fbdac23622597877121760341bf470b265, which added new guidance and refreshed software versions. Overall, the changes improve onboarding, reduce setup ambiguity, and maintain documentation parity with hardware and software evolutions.
July 2025 monthly summary for oracle-japan/ocitutorials: Delivered updates to OCI HPC performance tuning and profiling guidance, introduced a new profiling and tuning tutorial with measurable performance gains, and fixed a formatting issue to ensure correct rendering of technical tips. These actions updated content to reflect latest tooling versions and performance best practices, enabling faster optimization cycles for HPC users and aligning documentation with current OpenMPI, Score-P/Scalasca, and CubeGUI workflows.
July 2025 monthly summary for oracle-japan/ocitutorials: Delivered updates to OCI HPC performance tuning and profiling guidance, introduced a new profiling and tuning tutorial with measurable performance gains, and fixed a formatting issue to ensure correct rendering of technical tips. These actions updated content to reflect latest tooling versions and performance best practices, enabling faster optimization cycles for HPC users and aligning documentation with current OpenMPI, Score-P/Scalasca, and CubeGUI workflows.
June 2025: Delivered updated OCI HPC performance tuning tutorials with Unified Collective Communication (UCC) integration, expanded the OpenMPI build guidance with UCC installation steps, and performed thorough documentation cleanup. The work focused on oracle-japan/ocitutorials, improving guidance for HPC users and establishing groundwork for broader UCC-driven improvements across tutorials and tips.
June 2025: Delivered updated OCI HPC performance tuning tutorials with Unified Collective Communication (UCC) integration, expanded the OpenMPI build guidance with UCC installation steps, and performed thorough documentation cleanup. The work focused on oracle-japan/ocitutorials, improving guidance for HPC users and establishing groundwork for broader UCC-driven improvements across tutorials and tips.
May 2025 monthly summary for oracle-japan/ocitutorials: Delivered two HPC-focused tutorials and related storage documentation enhancements for BM.Standard.E6.256, with emphasis on practical performance tuning, benchmarking workflows, and high-performance storage setups. Outcomes include OpenMPI tuning guidance, HPL/STREAM benchmarking procedures, and a block-volume based file-share storage tutorial with updated IO500 benchmarks, complemented by focused documentation corrections for clarity. These deliverables improve customer onboarding, accelerate HPC workload readiness on OCI, and ensure benchmark data remains current and actionable for performance-oriented users.
May 2025 monthly summary for oracle-japan/ocitutorials: Delivered two HPC-focused tutorials and related storage documentation enhancements for BM.Standard.E6.256, with emphasis on practical performance tuning, benchmarking workflows, and high-performance storage setups. Outcomes include OpenMPI tuning guidance, HPL/STREAM benchmarking procedures, and a block-volume based file-share storage tutorial with updated IO500 benchmarks, complemented by focused documentation corrections for clarity. These deliverables improve customer onboarding, accelerate HPC workload readiness on OCI, and ensure benchmark data remains current and actionable for performance-oriented users.
April 2025 monthly summary for oracle-japan/ocitutorials focusing on HPC-oriented enhancements and documentation polish. Delivered new OCI HPC tutorials and workload environment guidance for BM.Standard.E5.192, updated performance guides with NPS4 details, refined HPC workload environment construction and HPL guidance, and performed minor content corrections. Introduced Lustre-based storage guidance with a new Lustre File Storage tutorial, expanded tips/glossary with Lustre and platform image information, and added considerations for shared storage and UCC integration in Oracle Linux HPC setups. Completed documentation accuracy improvements by correcting typographical errors and clarifying descriptions to improve user readability and reduce support friction.
April 2025 monthly summary for oracle-japan/ocitutorials focusing on HPC-oriented enhancements and documentation polish. Delivered new OCI HPC tutorials and workload environment guidance for BM.Standard.E5.192, updated performance guides with NPS4 details, refined HPC workload environment construction and HPL guidance, and performed minor content corrections. Introduced Lustre-based storage guidance with a new Lustre File Storage tutorial, expanded tips/glossary with Lustre and platform image information, and added considerations for shared storage and UCC integration in Oracle Linux HPC setups. Completed documentation accuracy improvements by correcting typographical errors and clarifying descriptions to improve user readability and reduce support friction.
March 2025 monthly summary for oracle-japan/ocitutorials: Delivered consolidated HPC/ML deployment tutorials on OCI, updated OpenMPI performance tuning guidance, added distributed ML setup guides for GPU instances, and introduced new tutorials for GPU-based ML and Oracle Linux-based HPC workflows. The updates support scalable HPC/ML workloads on OCI with rootless containers and optimized core allocation on BM/GPUs, improving deployment speed and performance visibility for users and customers.
March 2025 monthly summary for oracle-japan/ocitutorials: Delivered consolidated HPC/ML deployment tutorials on OCI, updated OpenMPI performance tuning guidance, added distributed ML setup guides for GPU instances, and introduced new tutorials for GPU-based ML and Oracle Linux-based HPC workflows. The updates support scalable HPC/ML workloads on OCI with rootless containers and optimized core allocation on BM/GPUs, improving deployment speed and performance visibility for users and customers.
February 2025 monthly summary for oracle-japan/ocitutorials: Delivered enhancements to OCI HPC Performance Tuning Tutorials, expanding OpenMPI tuning guidance (mpi_show_mca_params), clarifying HCOLL usage, and adding UCX tuning (UCX_ZCOPY_THRESH) with two-node execution results. Included corrections and minor edits to improve accuracy. Result: clearer, actionable HPC performance guidance for OCI HPC users, enabling better MPI/UCX optimization with validated content.
February 2025 monthly summary for oracle-japan/ocitutorials: Delivered enhancements to OCI HPC Performance Tuning Tutorials, expanding OpenMPI tuning guidance (mpi_show_mca_params), clarifying HCOLL usage, and adding UCX tuning (UCX_ZCOPY_THRESH) with two-node execution results. Included corrections and minor edits to improve accuracy. Result: clearer, actionable HPC performance guidance for OCI HPC users, enabling better MPI/UCX optimization with validated content.
Monthly summary for 2025-01 focused on delivering HPC guidance improvements and performance-tuning tutorials for oracle-japan/ocitutorials. Key work includes OCI HPC Core Allocation Guidance Enhancements with performance-oriented core bindings and NUMA-aware placement for OpenMPI and Slurm, plus verification steps. Also released OCI HPC Performance Tuning Tutorials Update, introducing a new OpenMPI MPI collectives tuning tutorial and updating HPL/STREAM guidance for Oracle Linux 8.10. Minor edits and typo corrections were made across related tutorials to improve clarity and accuracy. No major bugs reported in this period. This work strengthens business value by improving actionable HPC guidance, keeping tutorials up-to-date with OL8.10, and easing onboarding for HPC users.
Monthly summary for 2025-01 focused on delivering HPC guidance improvements and performance-tuning tutorials for oracle-japan/ocitutorials. Key work includes OCI HPC Core Allocation Guidance Enhancements with performance-oriented core bindings and NUMA-aware placement for OpenMPI and Slurm, plus verification steps. Also released OCI HPC Performance Tuning Tutorials Update, introducing a new OpenMPI MPI collectives tuning tutorial and updating HPL/STREAM guidance for Oracle Linux 8.10. Minor edits and typo corrections were made across related tutorials to improve clarity and accuracy. No major bugs reported in this period. This work strengthens business value by improving actionable HPC guidance, keeping tutorials up-to-date with OL8.10, and easing onboarding for HPC users.
December 2024 monthly summary for oracle-japan/ocitutorials: Delivered a comprehensive enhancement of OCI HPC Technical Tips, consolidating up-to-date MPI/UCX version recommendations, Slurm configuration guidance, performance-tuning parameters, and resource-management practices to improve user efficiency, job throughput, and reliability on OCI HPC.
December 2024 monthly summary for oracle-japan/ocitutorials: Delivered a comprehensive enhancement of OCI HPC Technical Tips, consolidating up-to-date MPI/UCX version recommendations, Slurm configuration guidance, performance-tuning parameters, and resource-management practices to improve user efficiency, job throughput, and reliability on OCI HPC.
November 2024 (2024-11) Monthly Summary for repository oracle-japan/ocitutorials focused on delivering business value through robust backup capabilities, clearer HPC tooling guidance, and improved network connectivity documentation. Key outcomes include expanded backup environment guidance and new block-volume backup options, refined HPC tooling notes, and clarified cluster networking requirements with OCA HPC plugin considerations. The work strengthens disaster recovery readiness, accelerates HPC cluster operations, and improves onboarding through higher quality documentation.
November 2024 (2024-11) Monthly Summary for repository oracle-japan/ocitutorials focused on delivering business value through robust backup capabilities, clearer HPC tooling guidance, and improved network connectivity documentation. Key outcomes include expanded backup environment guidance and new block-volume backup options, refined HPC tooling notes, and clarified cluster networking requirements with OCA HPC plugin considerations. The work strengthens disaster recovery readiness, accelerates HPC cluster operations, and improves onboarding through higher quality documentation.
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