GASNet: A Portable High-Performance Communication Layer for Global Address-Space Languages Dan Bonachea In conjunction with the joint UC Berkeley and LBL
It presents communication information of a certain run of a program ... discover accidental communication in implicit assignment(memcpy) detect load imbalances ...
Compile-time hooks for network-specific tuning. Replacement of internal object implementations ... Runtime hooks for network-specific tuning. Selection from ...
GASNet: A Portable High-Performance Communication Layer for ... often more scalable and ... Quadrics - falcon (ORNL) Compaq Alphaserver SC 2.0, ES40 ...
In conjunction with the joint UCB and NERSC/LBL UPC compiler development project ... BW = msg size * iter / total time. Flood test. Latency (IBM SP, network depth = 8) ...
... WKK Hoogcalorisch-gasnet Laagcalorisch-gasnet G-gas conversie Groningenveld Kleine velden LNG, Russisch & Noors gas Direct aangeslotenen en export ...
Compiler-generated code Compiler-specific runtime system GASNet Extended API GASNet Core API Network Hardware U.C. Berkeley and LBNL http://upc.nersc.gov
Fast Fourier Transform (FFTs) with Applications James Demmel www.cs.berkeley.edu/~demmel/cs267_Spr12 * Last bullet: GASNet reaches half peak bandwidth for message 1 ...
Translator Generated C Code. Berkeley UPC Runtime System. GASNet Communication System ... Translator optimizations necessary to improve UPC performance ...
Artificial Neural networks for Robot Control Neural Networks 15/16 Why use ANNs for robotics? Training procedures Use Evolutionary Algorithms! Basic GA Genetic ...
Experiences Implementing Partitioned Global Address Space (PGAS) ... Same source code supports both APIs via a thin layer of macros (and some #ifdef's) ...
A New DMA Registration Strategy for Pinning-Based High Performance Networks Dan Bonachea & Christian Bell U.C. Berkeley and LBNL {bonachea,csbell}@cs.berkeley.edu
Higher WHIRL. Lower WHIRL. Compiler based on Open64. Multiple ... Intermediate form called WHIRL. Leverage standard optimizations and analyses. Pointer analysis ...
An Evaluation of Global Address Space Languages: Co-Array Fortran and Unified Parallel C Cristian Coarfa, Yuri Dotsenko, John Mellor-Crummey Rice University
User controls layout of data across nodes. Direct read and write to remote memory ... Firmware 3.0, SDK 3.0.1. DivergeNet 8-port IB-4X switch. Firehose Algorithm ...
Data movement: broadcast, scatter, gather, ... Computational: reduce, prefix, ... Should non-blocking communication be a first class language citizen? Synchronization ...
Kathy Yelick Lawrence Berkeley National Laboratory and UC Berkeley Joint work with The Titanium Group: S. Graham, P. Hilfinger, P. Colella, D. Bonachea,
Parallel software is still an unsolved problem ! Most parallel ... This owner computes idiom is common, so UPC has. upc_forall(init; test; loop; affinity) ...
Right click; select New; select Shortcut. At command line, type: http://uianesthesia.com; hit enter ... TEAL: does not work on Remote Desktop. ASA Refresher Courses ...
Portable compiler infrasturucture (UPC- C) Optimization of communication and global pointers ... (Alpha cluster and C MPI compiler (with MTU)) Cray, Sun, and HP ...
CG working, performs well compared to Aztec implementation, but data set unrealistic ... Splash Benchmarks. Barnes Hut. FMM. Ocean. Radiosity. Sparse Cholesky ...
Global Trees: A Framework for Linked Data Structures on Distributed ... Charm , Linda, Orca. Partitioned Global Address Space (PGAS) Languages and Systems ...
When a remote page is already mapped, can freely use one-sided RDMA on it (a hit) ... A and C can freely 'pour' data through their firehoses using RDMA to/from ...
A number of threads (i.e. processes) working independently in a SPMD fashion ... Distributed Arrays Directory Style ... build directories of distributed ...
EEL End to end latency or time spent sending a short message between two processes. ... Results: EEL and Overhead. Results: Gap and Overhead. Send Overhead ...
Slides adapted from some by Tarek El-Ghazawi (GWU) CS267 Lecture: UPC ... Most parallel programs are written using either: Message passing ... CSC, Cray ...
Interessenvertreter-Anlass vom 22.10.09 in der ARA Bern WKK Grundlagen Fakten in CH Anwendungen V3E Energiepolitik WKK Potential in CH St rken, Chancen
Title: PowerPoint Presentation Last modified by: ADMINIBM Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show (4:3) Other titles
Applications: NAS parallel benchmarks (CG & MG) Standard benchmarks written in UPC by GWU ... Benchmark written in bulk synchronous style. Performance is ...
1. An Evaluation of Global Address Space Languages: Co-Array Fortran ... Generate code amenable to backend compiler optimizations. Quality of back end compilers ...
Center for Programming Models for Scalable Parallel Computing. Libraries, Languages, and Execution Models for ... Marianne Winslett University of Illinois ...
Jack Dongarra, Victor Eijkhout, Julien Langou, Julie Langou, Piotr Luszczek, Stan Tomov ... calls to ILAENV() to get block sizes, etc. Not systematically tuned ...
Christian Bell, Dan Bonachea, Wei Chen, Jason Duell, Paul Hargrove, Parry Husbands, Costin Iancu, Rajesh Nishtala, Michael Welcome. 2. Kathy Yelick. Titanium and UPC ...
UPC Program Examples. Shared data allocation. Common usage: static allocation of shared variables ... Common usage: coordinate activities across threads (make ...
enum pupc_event_type event_type, const char* source_file, unsigned int source_line, ... What about mixing in C/MPI code? ... shared void* from C to UPC though! ...
Formal Computational Skills Dynamical Systems Analysis Classify Fixed Points Suppose x0 =(x0, y0)T is a fixed point. Define the Jacobian: Find eigenvalues and ...
... of tools to support UPC on SAN-based systems. Benchmarking and case studies with key UPC applications ... UPC extends the C language to exploit parallelism ...