A parallel file system, like lustre, removes the need for tracking of data location, leaving only the issues of cache, ram and disk hierarchy eijkhout, 20. In this work we address these problems by using machine learning techniques to model the performance of the pidx parallel io library and select appropriate tunable parameter values. Helen is a high performance computing consultant of the user engagement group at nersc. Cray xe6xk7 276 cabinets xe6 compute nodes 5,688 blades 22,640 nodes 362,240 cores. Three issues for global e infrastructure from the japanese. Xk7 is a supercomputing platform, produced by cray, launched on october 29, 2012. Hlrs high performance computing center stuttgart cray xe6. We explore optimization techniques for geometric multigrid on existing and emerging multicore systems including the opteronbased cray xe6, intel sandy bridge and nehalembased infiniband clusters, as well as manycorebased architectures including nvidias fermi and kepler gpus and intels knights corner knc coprocessor. The xk6 uses the same blade architecture of the xe6, with each xk6 blade comprising four. Apr 18, 2017 grace brewster murray hopper nee murray. She has worked on diverse problems in high performance scientific computations, including parallel computing, sparse matrix computations, high precision arithmetic, and combinatorial scientific computing.
Lustre and plfs parallel io performance on a cray xe6 comparison of file systems brett m. Supercomputing for the parallelization of whole genome. High fidelity data collection and transport service. The cray cluster compatibility mode ccm is a cray software solution that provides the services needed to run most clusterbased independent software vendor isv applications on the cray xe6 79.
Special thanks to yushu yao and katie antypas of nersc for their contributions in cray integration and testing. Telemetryenabled customer support using the cray system. Named after american computer scientist grace hopper, the cray xe6 supercomputer has 153,216 compute cores, 217 terabytes of memory and 2 petabytes of disk. Files are available under licenses specified on their description page. In 1944, she was one of the first programmers of the harvard mark i computer and invented the first compiler for a computer programming language. An approach to enhance pnetcdf performance in environmental modeling applications. Media in category cray xe6 this category contains only the following file. Hopper placed number 8 on the june 2011 top500 supercomputer list. Finally, kma expanded its lustre capacity with the cray. The cray xc50 is a massively parallel multiprocessor supercomputer manufactured by cray. Petascale wrf simulation of hurricane sandy deployment of.
The login credentials are the same ones you use to ssh into the login node. High performance computing hpc systems academic computing. December 9, 1906 january 1, 1992 was an american computer scientist and united states navy rear admiral. Scratch has 30 day purge policy in effect for both files and directories. Pdf we present the design and evaluation of the heat recovery system for kths lindgren, stockholms fastest supercomputer, a cray. The cray xe6 linuxbased operating system efficiently supports the extreme levels of scaling featured in cray supercomputers as well as an increased range of industry applications with our cluster compatibility mode ccm software environment. Each xe6 node has two by 16core amd interlagos sockets, and the xk7. Why full page pdf ebook epub of the 150000copy underground bestseller, the emyth revisited,the emyth 6 days ago the e myth revisited pdf download file uploaded myth revisited free ebook pdf download on our site, all of book files on this web are pdf file the emyth revisited. Blue waters system overview blue waters user portal.
Characterization and modeling of pidx parallel io for. Pdf a heat reuse system for the cray xe6 and future. Epcc fortran coarray microbenchmark suite epcc at the. Navy arleigh burkeclass guidedmissile destroyer uss hopper was named for her, as was the cray xe6 hopper supercomputer at nersc. Lustre file system with cray support and using 384 cores on a cray xe6 system, swift simulated an unsteady passing maneuver with 1,350 unsteady iterations in 350 hours of compute time. List rank system vendor total cores rmax tflops rpeak tflops power kw 112015.
The processors are connected by cray s proprietary aries interconnect, in a dragonfly network topology. Dod hpcmp open research systems cray xe6 copper user. Michael stewart, yun helen he, benchmark performance of different compilers on a cray xe6, cray user group 2011, may 2011, download file. Cray xe6 architecture and performance top 10 jeff larkin. We currently support the cray xe6, xk6, xk7, xc30 and xc40 systems running the smw 7. The script was running more than 3 hours and none of. Cray xe6 hermit supercomputer located at germanys high performance computing center stuttgart hlrs, hermit is a cray xe6 system and one of the worldclass tier0 systems available to researchers through praces hpc service see sidebar, page 2. A typical mpi application will have 16 mpi processes per node. Benchmark performance of different compilers on a cray xe6. Scaling and performance efficiencies of applications. Central it at csu operates, maintains and supports a 2,560 core cray xe6, with 32 gb of ram per node, utilizing the highspeed gemini interconnect. Jul 18, 2018 after youve downloaded pdf expert on your mac, open it and youll see a space on the home page where you can drag and drop your pdf file or click on download pdf reader document expert for macos 10. This software applies to cray xc30 and cray xe6, cray xe6m and cray xk6.
Sherry li is a senior scientist in the computational research division, lawrence berkeley national laboratory. The machine can support intel xeon processors, as well as cavium thunderx2 processors, xeon phi processors and nvidia tesla p100 gpus. Windows os if you are running windows os windows xp, windows 7, you may use secure shell client and secure file transfer client to login or transfer files tofrom the cray. I am submitting this in cray cluster via aprun command like this. Dedicated operational nwp and research centers multidisciplinary research centers from teraflops to petaflops recent cray.
File transfers tofrom the cray are handled by sftp secure ftp or scp secure copy. Sole delivery focus is on linuxbased cray hardware systems. Lustre and plfs parallel io performance on a cray xe6. Performance test of parallel linear equation solvers on. Next came two 20cabinet cray xe6 systems connected into a shared lustre file system. F90, line 18 a loop starting at line 18 was interchanged with the loop starting at line 19. The cray app attached parallel processor was a parallel computer sold by cray research from 1992 onwards. This assumes that all of the compset settings in the long name have been defined. In the case of the piz daint cray xc30 machine power supply is. Cray s presence in the weather and climate community earth system modeling is a key area on cray systems worldwide. Cray xe6 hermit supercomputer located at germanys high performance computing center stuttgart hlrs, hermit is a cray xe6 system and one of the worldclass tier0 systems available to.
The cray xk6 made by cray is an enhanced version of the cray xe6 supercomputer, announced in may 2011. You can use sftp from the command line or other software. Xk7 is the second platform from cray to use a combination of central processing units cpus and graphical processing. Cray inc all rigts reserved cray is a registered trademar and te cray logo is a trademar of cray inc all oter trademars.
The cray xe6 supercomputing environment described here eliminates these wait times by using a parallel file system lustre without creating a resource conflict bottleneck. Performanceoriented programming on multicorebased systems, with a focus on the cray xe6 georg hagera, jan treibiga, and gerhard welleina,b ahpc services, erlangen regional computing. Cray built the worlds first production petaflops system. The system is architected not as a hierarchy with higher performing storage in the path to lower performing storage, but instead presents flashbased and diskbased. We include a case study utilizing xe6 production hpc systems. Cray xe6 customers with solutions for backup, archiving and data lifecycle management. Numerous manytask applications simulaonofsuper7 cooledglassmaterials proteinfoldingusing homology7freeapproaches climatemodelanalysisand. An application doing n1 through mpis adio, where every process is a writer, would create 32 files per node. The ssa program started internally at cray in 2012, followed by a customer early access release in 2014 and an initial general availability ga release in june of 2015. Proceedings of the international conference on high performance computing, networking, storage and analysis petascale wrf simulation of hurricane sandy deployment of ncsas cray xe6 blue waters.
First experiences with validating and using the cray. We also describe the methods used to collect data from nerscs hopper cray xe6 system. Three issues for global einfrastructure from the japanese hpci viewpoint satoshi matsuoka, dr. Lustre file system by cray clfs software installation guide s. Evaluation of a flash storage filesystem on the cray xe6. The extremely hot exhaust temperature of the hd air cooled chassis dramatically increases the capability of heat exchanger.
Professor, global scientific information and computing center gsic tokyo institute of technology, japan icri 2012 presentation, mar 22, 2012, copenhagen. Oran2, christopher lewis3, miguel valenciano4 computer resources. Cray io software stack hdf5 application netcdf mpiio posix io lustre file. Upon completion, the job ends and relevant files are collected and deposited in a location specified by the user. Choosing a system, using modules, global home directories, storing data, accounts and allocations. Implementation and optimization of minigmg a compact. Xiaoye sherry li lawrence berkeley national laboratory. Cray efficiency with ecophlex cooling with a standard air or liquidcooled high efficiency cabinet and optional ecophlex technology, the cray xe6. Baker made by cray is an enhanced version of the cray xt6 supercomputer, officially announced on 25 may 2010. It was based on the intel i860 microprocessor and could be configured with up to 84. The output file created by qbox is a valid and well formed xml document.
Cray xe6 hopper supercomputer hopper is nerscs first petaflops system. The cray xe6 supercomputer takes the proven cray xt5 infrastructure and incorporates it with two inno. We have a cray cx and cray cx1, but because of the size of the problem, the cray xe6 system was going to be a better solution in terms of scalability and performance, says winkler. Finally, kma expanded its lustre capacity with the cray sonexion 1600 scaleout lustre storage system in december 2012. It can be used to extract various diagnostic information after the run is completed. The cray xe6 system can be liquid cooled through use of cray ecophlex technology or air cooled. Mar 28, 2014 please update your module file accordingly when upgrading from 2. Hpc solutions, high performance cluster computing cray. Scratch has 30 day purge policy in effect for both files and. The user generally has no control over when the job starts.
Cray xt4 franklin supercomputer franklin, named in honor of benjamin franklin, is a cray xt4 massively parallel processing system with a. All structured data from the file and property namespaces is available under the creative commons cc0 license. A good rule of thumb is that if youre willing to sit through the file transfer, sftp is a good option. Pdf supercomputers keeping people warm in the winter. Indicate by check mark whether the registrant 1 has filed all reports required to be filed by section o.
Performance test of parallel linear equation solvers on blue waters cray. Cray, a hewlett packard enterprise company, grounded in decades of hpc expertise, specializes in supercomputers and solutions for storage and analytics. As the environment depends on the active prgenv module, users should load libraryrelated module files. Before using vnc for the first time you have to log on to one of the hermit front ends hermit1. Performance test of parallel linear equation solvers on blue waters cray xe6 xk7 system jaehyuk kwack, gregory h bauer, and seid koric. The cray data virtualization service allows for the projection of various other file systems including nfs, gpfs, panasas and.
Performanceoriented programming on multicorebased systems, with a focus on the cray xe6 xc30 georg hagera, jan treibiga, and gerhard welleina,b ahpc services, erlangen regional. This release features official support for the cray xe6 and ibm bgq platforms. Currently the xe6 is run in test mode, its free to use accounting is allready enabled for testing purposes accounting is done by examining the torque log files and is based on the unix group id a user belongs. Here are instructions to download, install, and configure this software. Using the cray xe6 system and cfd, they were able to break a second passing. She has been the main ueg point of contact, among users, system people, and vendors, for the cray xt4 franklin, xe6 hopper systems, and xc40 cori systems at nersc in the past 10 years. The cray modules tested in this study are as follows. A heat reuse system for the cray xe6 and future systems at pdc, kth conference paper pdf available may 2012 with 58 reads how we measure reads. We characterize both the network and io phases of pidx on a cray xe6 as well as an ibm blue genep system. Cray io software stack hdf5 application netcdf mpiio posix io lustre file system. The gemini interconnect is the heart of the cray xe6 system.
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