Government retains a nonexclusive, royalty free right to publish or repro duce this. The uiuc cuda center of excellence pi has been a copi of the blue waters project and proposed the. Cgpack has since been ported to intel and opencoarraygcc platforms. Single program, multiple data programming for hierarchical computations by amir ashraf kamil a dissertation submitted in partial satisfaction of the. One nuance of this is that an entire node, consisting of 32 cores, is the smallest resource that can be used. Glossary of terms 23 peprocessing element a discrete software process with. 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 center rrze bdepartment for computer science friedrichalexanderuniversity erlangennuremberg. Fully upgradeable from the cray xt5 and cray xt6 line of supercomputers, the cray xe6 series deliver improved interconnect performance and network resiliency, a mature and scalable software environment, and the ability to run a broad array of isv applications with the latest version of the cray. Hector is the cray xe6 installed in edinburgh and forms. 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 to normally the user dont have to do anything if a user is involved in several projects, he has to select the. The xk6 uses the same blade architecture of the xe6, with each xk6 blade comprising four compute nodes. First, download the prerequisite source tarballs from the vasp home page. On cray xe6, the cray c compiler shows 5 to 6 times faster than gnuc compiler, which cray c compiler obtained 0. Performanceoriented programming on multicorebased systems.
Hopper is down now, so ill have to wait to try it out there. Investigating the impact of the cielo cray xe6 architecture. This release features official support for the cray xe6 and ibm bgq platforms. Research programmer, ncsa university of illinois at urbanachampaign urbana, il. Using the cray programming environment to convert an all mpi. Hpcg and hpgmg benchmark tests on multiple program. Shared fp unit per pair of integer cores module 256bit fp unit sse4. Hastings, matthias troyer as quantum computing technology improves and quantum computers with a small but nontrivial number of n 100 qubits.
Par proc prsntatn free download as powerpoint presentation. Pdf extracting ultrascale lattice boltzmann performance. The levelsynchronous topdown bfs can be implemented sequentially using a queue, as shown in algorithm 1. Cray xk7 kepler gpu plus amd 16core opteron cpu cray xe6. Petascale wrf simulation of hurricane sandy deployment of. Accelerating research and development using the titan. Nov 01, 2018 cgpack is a free open source bsdlicensed library written in fortran 2008 with extensive use of coarrays. Cleanest integration with other cray tools performance tools, debuggers, upcoming productivity tools no inline assembly support compiler choices relative strengths 7 from cray s perspective. Jump to navigation jump to search cray xe6 supercomputer. In this work, we implement an opensource mpi implementation for cray xe6 and xk6 systems by extending open mpi 3, a production grade and widely used opensource implementation of mpi. Feb 08, 2012 cray already had a knowledge management practice, but has decided to create a proper division pulling in employees from research and development, marketing, sales, services, and support and dedicating them towards creating and supporting hardware and software for running big data and analytics workloads as distinct from the kinds of simulation workloads that cray s gear generally runs. Sole delivery focus is on linuxbased cray hardware systems best bug turnaround time if it isnt, let us know.
Single program, multiple data programming for hierarchical. The application simulates magnetic reconnection with two trillion particles. The ncsa blue waters cray xe6 xk7 system resource label. Hopper was installed at nersc in the last quarter of 2010 with early users on the system running codes free of computing hours charge until it was put into production. Their work was performance optimization on a cray xe6 and. The cray xe6 node we are concentrating on the cray xe6 installed in edinburgh, which is called hector there are other xe6 models using different processors and different interconnects topology which we dont cover in this workshop we start by introducing the node parts processors used, interconnect, and shows how they are packaged.
Abstract high overhead of negrained communication is a signi cant performance bottleneck for many classes of applications written for large scale parallel systems. There are other xe6 models in prace which may have different processor, memory and network. The gemini interconnect on the cray xe6 platform provides for lightweight remote direct memory access rdma between nodes, which. Pdf a preliminary evaluation of the hardware acceleration. Several cray supercomputer systems are listed in the top500, which ranks the most powerful supercomputer. Search problems in automatic performance tuning core. Pdf supercomputers keeping people warm in the winter. Free format ftn f free free ffreeform vectorization by default at o1 and above by default at o2 and above by default at o3 or using ftreevectorize. Cray puts super stake in the big data ground the register. Cray xk6 and cray xe6 machines are in section viii. In this whitepaper we report work that was done to investigate and improve the performance of a mixed mpi and openmp implementation of the fly code for cosmological simulations on a prace tier0 system hermit cray xe6. Optimization of geometric multigrid for emerging multi and. Using cray performance analysis tools s237653 this update of using cray performance analysis tools supports the 5.
Number of compute cores, per node 2 sockets with 16. Porting and scaling openacc applications on massivelyparallel. Mpi and openmp princeton plasma physics laboratory. Article information, pdf download for performance analysis of asynchronous. Shared fp unit per pair of integer cores module 2 128bit fma fp units sse4. Results vironment, including numa nonuniform memory access, show that our unique tuning approach improves performance affinity, problem decomposition among processes, thread and energy requirements by up to 3. Accelerating science and engineering with kepler gpus in blue. It applies specifically to the cray xe6 at pdc called lindgren, but cray has a similar environment on all machines, so it might be helpful for other cray sites as well first, download the prerequisite source tarballs from the vasp home page.
The finest sequential time obtained by cray c compiler is due to the cce provides excellent vectorization compared to other compiler on cray xe6. Submesh allocation in 3d mesh multicomputers using free. Performance evaluation of open mpi on cray xexk systems. Jan 15, 2015 anyway, i tried to build with cray pmi and then i end up with a nonfunctional installation. The cray xe6 nodes are composed of two amd interlagos processors.
Hastings, matthias troyer as quantum computing technology improves and quantum. Shell client and secure file transfer client to login or transfer files tofrom the cray. Lustre and plfs parallel io performance on a cray xe6. Results vironment, including numa nonuniform memory access, show that our unique. Pdf performance pattern of unified parallel c on multicore. Performance analysis of asynchronous jacobis method. We performed hpcg and hpgmg benchmark tests on a cray xe6 xk7 hybrid supercomputer, blue waters at national center for supercomputing applications ncsa. A heat reuse system for the cray xe6 and future systems. Over two trillion particles were simulated for 23,000. Cray xe6 series of supercomputers now available with new. Benchmark performance of different compilers on a cray xe6.
Two widely used and free mpi implementations on linux clusters are. A heat reuse system for the cray xe6 and future systems at. Adding support for new network interfaces in open mpi requires implementing a networkspeci. The cray xe6 is designed to run large, parallel jobs efficiently. Added information new information has been added throughout this guide to support the use of the cray. 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. Here are instructions to download, install, and configure this software. Each node consists of a 16core amd opteron 6200 processor with 16 or 32 gb of ddr3 ram and an nvidia tesla x2090 gpgpu with 6 gb of gddr5 ram, the two connected via pci. Using the cray programming environment to convert an all. Dual interlagos and no gpu application performance ratio performance ratio comment s3d 1. The cray xk6 made by cray is an enhanced version of the cray xe6 supercomputer, announced in may 2011. Before using vnc for the first time you have to log on to one of the hermit front ends hermit1. Special thanks to yushu yao and katie antypas of nersc for their contributions in cray integration and testing.
All source code and full documentation are freely available from the above url. Pdf performance pattern of unified parallel c on multi. Hector hector is the cray xe6 installed in edinburgh and forms the uks national supercomputer service. An application doing n1 through mpis adio, where every process is a writer, would create 32 files per node. Cray xe6 compute cray xk7 accelerator service nodes operating system boot system database login gateways network loginnetwork lustre file system lnet routers interconnect network lustre service nodes spread throughout the torus. Usa melvyn shapiro alan norton thomas galarneau national center for atmospheric research boulder, co. Optimization of geometric multigrid for emerging multi. Cflcontext free language cgconjugate gradient dfsdepth. The finest sequential time obtained by cray c compiler is due to the cce provides excellent vectorization compared to other compiler on cray xe6 12.
Can quantum chemistry be performed on a small quantum computer. Node architecture beginning with the xt6 and continuing on to the xe6. Baker made by cray is an enhanced version of the cray xt6 supercomputer, officially announced on 25 may 2010. Pdf evaluating the networking characteristics of the cray xc40. Visualization and analysis of petascale molecular simulations with. Nov 17, 20 petascale wrf simulation of hurricane sandy deployment of ncsas cray xe6 blue waters peter johnsen meteorologist, performance engineering group cray, inc. Anyway, i tried to build with cray pmi and then i end up with a nonfunctional installation. It also manufactures systems for data storage and analytics. Downloads pdf htmlzip epub on read the docs project home builds free document hosting provided by read the docs. Scratch storage consists of 32 tb of fast, parallel lustre storage, augmented by approximately 100 tb of expandable user storage space.
In the meanwhile ive been trying on another cray too xc30 and there i have similar issues. Here are some instructions for making a basic installation of vasp 5. It applies specifically to the cray xe6 at pdc called lindgren, but cray has a similar environment on all machines, so it might be helpful for other cray sites as well. On the other hand, the cray xe6 aircooled supercomputer. A typical mpi application will have 16 mpi processes per node. Scalable, tailored, jitter free programming environment. Under resources choose software downloads 3 choose site licensed software free. Two amd opteron 6276 interlagos processors 2 x 16 bulldozer compute modules 2. Modelling fracture in heterogeneous materials on hpc. Media in category cray xe6 this category contains only the following file.
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