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The Sun Lustre Center of Excellence (LCE) at ORNL advances the state of Lustre for use in large scale HPC environments. As you'll see from the projects below, the ORNL LCE focuses on both systems and applications aspects of ensuring that Lustre meets the needs of DOE and the HPC community in general. ==Current projects and their status== ===Applications IO Performance=== Mike Booth, one of the LCE personnel, is investigating applications IO performance on the Lustre systems at ORNL to identify ways to achieve more consistent and higher IO performance. He is also working on enhancing the ADIOS IO layer. Feel free to [mailto:Michael.Booth@Sun.COM contact Mike] for more information and status of his work. [[Implementing Applications in a Lustre Environment]] contains information on achieving high performance applications IO with the Lustre file system. ==Events== The LCE sponsors events to encourage HPC community involvement in analyzing IO and storage requirements and identifying ways for Lustre to address these requirements. The next event will be an Applications Workshop this Autumn 2009. ===LCE Summit - February 2008=== *[[Media:LCE_Summit_Summary_Draft_March_14_2008.pdf|LCE Summit Meeting Summary]] *[[Media:LCESummitSlides.pdf|LCE Summit Slides and Notes]] ===LCE Application I/O Workshop - April 16, 2008=== *[[Media:April2008ApplicationIOWorkshop.pdf|Application IO Workshop, Agenda and Notes]] *[[Media:Lustre_workshop_WangDi.pdf|Lustre and Application IO - Wang Di's Slides]] *[[Media:Lustre_workshop_Oleg.pdf|Lustre and Application IO - Oleg Drokin's Slides]] ===Lustre Scalability Workshop - Feb 10 & 11, 2009, ORNL=== *[[Media:Notes_on_SW1_Notes.pdf|Scalability Workshop Notes]] *[[Media:LustreScalabilityWP_Updated.pdf|Scalability White Paper]] *[[Media:Shipman_Feb_lustre_scalability.pdf|Galen Shipman's presentation]] *[[Media:Eric-Barton_-_Lustre-Multi_PF_Roadmap-090130.pdf|Eric Barton's presentation]] ===Lustre Scalability Workshop - May 19 & 20, 2009, ORNL=== The May Lustre Scalability Workshop at ORNL was focused on long term (2015) HPC IO and storage requirements and on presentations on the IO objectives of the DOD HPCS program and how Lustre will achieve them. *[[Media:Dawson_Lustre_Workshop_May_2009.pdf|Lustre Scalability Workshop, Initial Gap Response - John Dawson]] *[[Media:Carrier_2009-05-19_ORNL_LCE_HPCS.pdf|HPCS IO - John Carrier]] *[[Media:Newman_May_Lustre_Workshop.pdf|What is HPCS and How Does it Impact IO - Henry Newman]] *[[Media:Shipman_May_lustre_scalability_workshop.pdf|2015 Parallel File System Requirements - Galen Shipman]] *[[Media:Dilger_Lustre_HPCS_May_Workshop.pdf|Lustre HPCS Design Overview - Andreas Dilger]] ===Scalability Workshop Follow up=== *[[Media:Gap Response.pdf|Scalability Gap Response]] is the final version of Sun's response to the scalability gaps identified and discussed during the LCE Scalability Workshops in February and May of 2009. ==White Papers== LCE personnel have written a variety of papers on High Performance IO and potential Lustre features. Links to these documents are below. *[https://www.sun.com/offers/details/Peta-Scale_wp.xml Lustre Scalability - An Oak Ridge National Laboratory/Lustre Center of Excellence Paper] *[[Media:Lce_pop_submitted.pdf|Improving I/O Performance in POP (Parallel Ocean Program)]] * Scalability Improvements **[[Media:Lustre_Enhancement_Report_Interval_Trees.pdf|Using Interval Tree to scale extent locks]] **[[Media:Lustre_Enhancement_Report_UUID_Hash_Tables.pdf|Implement hash tables to scale export lookups]] **[[Media:A_Novel_Network_Request_Scheduler_for_a_Large_Scale_Storage_System.pdf|A Novel Network Request Scheduler for a Large Scale Storage System]] *Lustre ADIO Driver Enhancements Whitepaper **[[Media:Lustre_ADIO_Driver_Whitepaper_0926.pdf|Lustre ADIO Driver Enhancements]] *FMS Application IO Analysis **[[Media:FMS_Investigation_Report_%280915%29.pdf|FMS Application IO Performance Analysis]] ==Presentations== See the ORNL [http://wiki.lustre.org/index.php/Lustre_User_Group slides and video] from their presentation at LUG 2009. ==Press Articles== * [http://www.nccs.gov/2009/06/30/ornl-hosts-lustre-part-ii/ ORNL Hosts Lustre Part II] ==Lustre Internals Manual== LCE and ORNL have written a Lustre filesystem internals document the describes the internal operation of Lustre. *[[Media:Understanding_Lustre_Filesystem_Internals.pdf|Understanding Lustre Filesystem Internals]] == Archives of Older Material == This material may be out of date, and is preserved here for archive purposes. *[[Media:Peta-Scale_wp.pdf| 2008 Paper on IO with the Lustre File System at ORNL]] <br> For more information about computing at Oak Ridge, click [http://www.nccs.gov/ here]. If you have questions or comments on this page or the LCE projects, contact [mailto:John.Dawson@sun.com John Dawson].

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