PPT-Analysis of Topology-Dependent MPI Performance on Gemini Networks

Antonio J Peña Ralf G Correa Carvalho James Dinan Pavan Balaji Rajeev Thakur and William Gropp Motivation Network properties can have a significant impact on application performance BW uses a 3dimensional Cray Gemini torus featuring anisotropic properties. Rui. Wang, . Erlin. Yao, . Pavan. . Balaji. , Darius . Buntinas. , . Mingyu. Chen, and . Guangming. Tan. Argonne National Laboratory, Chicago, USA. ICT, Chinese Academy of Sciences, China. Hardware Resilience for large-scale systems. Junchao. Zhang. Argonne National Laboratory. jczhang@anl.gov. Pavan Balaji. Argonne National Laboratory. balaji@anl.gov. Ken . Raffenetti. Argonne National Laboratory. raffenet@anl.gov. Bill. . Long. Coarray Fortran. Chaoran Yang,. 1. Wesley Bland,. 2. John Mellor-Crummey,. 1. Pavan Balaji. 2. 1. Department of Computer Science. Rice University. Houston, TX. 2. Mathematics and Computer Science Division. 3/ 25 PACX-MPI LA-MPI 4/ 25 Open MPI Code Structure Operating system OMPI 6/ 25 Open Message Passing Interface User application MPI API MPI Component Architecture (MCA) Allocator Shared Mem. Infiband. Why An ARB?. Consider long-view – what does MPI need to remain. relevant for the future? . Consider big picture – are features proposed for (or already part of) MPI consistent with the MPI?. Recommend – What should the MPI Forum consider?. near-infrared . photometry . from the . ground for a crowded star cluster. National Science Foundation • Division of Astronomical Sciences . Prepared by the . Association of Universities for Research in Astronomy . its . Base Facility at sea. . level; no longer need to trek to the 4,200-m mountain site. National Science Foundation • Division of Astronomical Sciences . Prepared by the . Association of Universities for Research in Astronomy . gemini. By: Kaitlyn and Aria. Gemini got its name by Castor and Pollux, the 2 brightest stars in Gemini, being concidered to be “The Twins” which is Gemini’s nickname. Greeks came up with the Castor-Pollux legend.. eet, we . c. hange the world.. http. ://youtu.be/BeyNb7Nft9o. Today’s Discussion. Overview. Leadership. MPI Foundation. Membership Value . I Am MPI. State of MPI. Open Discussion. Overview. Global Industry Impact. Junchao. Zhang. Argonne National Laboratory. jczhang@anl.gov. Pavan Balaji. Argonne National Laboratory. balaji@anl.gov. Ken . Raffenetti. Argonne National Laboratory. raffenet@anl.gov. Bill. . Long. Who We Are. Gemini Skills Workshop. Agenda. Our vision. Our distinct market positioning. Our values. Our organisation. Our way of doing business. Gemini is a new company built around two ideals. Making a Difference:. James . Dinan. , . Pavan. . Balaji. , Jeff Hammond,. Sriram. . Krishnamoorthy. , and . Vinod. . Tipparaju. Presented by: James . Dinan. James Wallace Gives Postdoctoral Fellow. Argonne National Laboratory. Communication on Multicore Petascale Systems. Gabor Dozsa. 1. , Sameer Kumar. 1. , Pavan Balaji. 2. , Darius Buntinas. 2. ,. David Goodell. 2. , William Gropp. 3. , Joe Ratterman. 4. , and Rajeev Thakur. Topology of a network has great effect on the performance and network troubleshooting of a particular network.. . Topology. is a network specification that determines the network’s . overall layout .