PGAS Programming with UPC and Fortran Coarrays

More documents

Recommendations

Info

Gathershared[] int A[8];shared[2] int B[8];upc_all_gather(A, B, 2*sizeof(int), UPC_IN_ALLSYNC | UPC_OUT_ALLSYNC);Thread 0A B ABA 0 A 1 A 0 A 1 … A 7 A 0 A 1Thread 1A 2 A 3A 2 A 3Thread 2A 4 A 5A 4 A 5Thread 3A 6 A 7A 6 A 7UPC 29Reductionshared[4] double A[16];shared double B;upc_all_reduceD(&B, A, UPC_SUM, 4, 16, NULL, UPC_IN_ALLSYNC | UPC_OUT_ALLSYNC);Thread 0AA 00 A 01 A 02 A 03BBThread 1A 10 A 11 A 12 A 13Thread 2A 20 A 21 A 22 A 23Thread 3A 30 A 31 A 32 A 33UPC 30–15
Final summarydata distribution & worksharingpointers, dynamicmemory allocationPGASextension to Csynchronisation throughbarriers & lockscollective operationsUPC 31Referenceshttp://upc.gwu.edu/documentation.htmlLanguage Specification (version 1.2)UPC ManualUPC Collective Operations Specification (version 1.0)UPC 32–16
Page 1 and 2:
PGAS Programming withUPC and Fortra
Page 3 and 4:
•19/12/2012Contents• A Little B
Page 5 and 6:
•19/12/2012Vectorisation• Somet
Page 7 and 8:
•19/12/2012Contents• A Little B
Page 9 and 10:
•19/12/2012Shared Memory• Multi
Page 11 and 12: •19/12/2012Single-Sided Communica
Page 13 and 14: •19/12/2012PGAS Languages• The
Page 15 and 16: •19/12/2012Hybrid Approaches• U
Page 17 and 18: •19/12/2012References• PRACE-PP
Page 19 and 20: UPCUnified Parallel CParallel exten
Page 21 and 22: Private vs. shared memory spaceConc
Page 23 and 24: Shared array distributionIf a share
Page 25 and 26: Example: vector addition (1)#define
Page 27 and 28: “Static” keywordensures shared
Page 29 and 30: References• UPC Language Specific
Page 31 and 32: Sample PBS script for XE6#!/bin/bas
Page 33 and 34: Brief recap… private and shared d
Page 35 and 36: Multi-dimensional dataUPC can distr
Page 37 and 38: Multi-dimensional data - Case 1shar
Page 39 and 40: Multi-dimensional data - Case 3slab
Page 41 and 42: Static vs. dynamic compilation (3)s
Page 43 and 44: Debugging barriersthe optional valu
Page 45 and 46: Example: Vector addition (3/3)Advan
Page 47 and 48: Improved data distributionCAB00 0 0
Page 49 and 50: C pointersA pointer in C is a data
Page 51 and 52: UPC pointersUPC pointers have three
Page 53 and 54: Pointer castingcasting a shared poi
Page 55 and 56: Non-collective dynamic allocation (
Page 57 and 58: Creating locksinitial state of a ne
Page 59 and 60: Example: Dining Philosophers (contd
Page 61: Broadcastshared[] int A[2];shared[2
Page 65 and 66: 12/19/2012The FortranProgramming Mo
Page 67 and 68: 12/19/2012Fortran 2008 coarray mode
Page 69 and 70: 12/19/2012Fortran coarraysBasic Fea
Page 71 and 72: 12/19/2012What are coarrays?• Arr
Page 73 and 74: 12/19/2012Making remote references
Page 75 and 76: 12/19/2012Synchronisation• code e
Page 77 and 78: 12/19/2012Example2: Calculate densi
Page 79 and 80: 12/19/2012Exercise Session 1• Loo
Page 81 and 82: 12/19/2012OpenMP implementationmemo
Page 83 and 84: 12/19/2012MPIprocess 0memoryprocess
Page 85 and 86: 12/19/2012High Performance Fortran
Page 87 and 88: 12/19/2012UPCthreadthreadthreadmemo
Page 89 and 90: 12/19/2012Fortran coarray modelproc
Page 91 and 92: 12/19/2012Parallel Programmingwith
Page 93 and 94: 12/19/2012Edge detection and pictur
Page 95 and 96: 12/19/2012More Coarray FeaturesPara
Page 97 and 98: 12/19/20122D Data• However, image
Page 99 and 100: 12/19/2012Codimensions: What They M
Page 101 and 102: 12/19/2012this_image() & image_inde
Page 103 and 104: 12/19/2012Allocatable Coarrays• C
Page 105 and 106: 12/19/2012Coarrays and Procedures
Page 107 and 108: 12/19/2012Summary• Coarrays with
Page 109 and 110: segmentsegment12/19/2012More on Syn
Page 111 and 112: 12/19/2012Synchronisation mistakes
Page 113 and 114:
12/19/2012Other Synchronisation•
Page 115 and 116:
12/19/2012More on Cosubscripts• i
Page 117 and 118:
12/19/2012Coarray Technical Specifi
Page 119 and 120:
12/19/2012TS: Collective intrinsic
Page 121 and 122:
12/19/2012Experiences withCoarraysP
Page 123 and 124:
12/19/2012Implementations we have u
Page 125 and 126:
12/19/2012Adding coarrays to existi
Page 127 and 128:
12/19/2012AllReduce (everyone gets,
Page 129 and 130:
12/19/2012Synchronisation (one to m
Page 131 and 132:
12/19/2012Coarray Benchmark Suite
Page 133 and 134:
microseconds12/19/2012Pingpong (sma
Page 135 and 136:
12/19/20123D Halo Swap on XE6 (weak
Page 137 and 138:
12/19/2012Data Structuresuse,intrin
Page 139 and 140:
12/19/2012Solve the puzzles and wri
Page 141 and 142:
12/19/2012Distributed remote gather
Page 143 and 144:
Performance (TFlop/s)12/19/2012HIME
Page 145 and 146:
12/19/2012References• http://lacs
show all

PGAS Programming with UPC and Fortran Coarrays

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?