スパコンに通じる並列プログラミングの基礎

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1 ( ) / 59

2 ( ) / 59

3 Windows, Mac Unix 0444-J ( ) / 59

4 Part I Unix GUI CUI: Unix, Windows, Mac OS Part II 0444-J furihata@cmc.osaka-u.ac.jp ( ) / 59

5 ( : ) 9 10 ( ) 9 13 * 9 19 SX-ACE * 9 20 (for OCTOPUS,VCC) * 9 26 SX-ACE (MPI) * AVS AVS / * event/lecture/ 0444-J furihata@cmc.osaka-u.ac.jp ( ) / 59

6 Part I: UNIX ( ) / 59

7 CUI ( ) / 59

8 GUI CUI, OS GUI OS (Windows, MacOS X, Unix) GUI (Graphical User Interface) CUI CUI (Character User Interface)/ CLI (Command Line Interface) OS Unix CUI/CLI Unix Unix = CUI/CLI 0445-J furihata@cmc.osaka-u.ac.jp ( ) / 59

9 GUI CUI GUI CUI J furihata@cmc.osaka-u.ac.jp ( ) / 59

10 CUI を理解するコツ I GUI は 地図で CUI は 写真である GUI = 地図 CUI = 写真 CUI では 今 どこにいるか が重要 基本的には 自分が歩いて行く (= cd コマンド等で移動). furihata@cmc.osaka-u.ac.jp (大阪大学サイバーメディアセンター スパコンに通じる並列プログラミングの基礎 ) 0445-J / 59

11 CUI II CUI = (shell) CUI =! furihata@cmc.osaka-u.ac.jp ( ) / J

12 CUI III CUI Unix CUI ssh 0445-J ( ) / 59

13 CUI IV CUI Emacs vi Emacs vi ( ) emacs vi 0445-J furihata@cmc.osaka-u.ac.jp ( ) / 59

14 Unix ( ) / 59

15 Unix : pwd cd.. cd hoge mkdir hoge rmdir hoge mv hoge poko hoge hoge hoge hoge poko or - poko, J furihata@cmc.osaka-u.ac.jp ( ) / 59

16 Unix : ls touch hoge rm hoge mv hoge poko hoge hoge hoge poko or - poko, J furihata@cmc.osaka-u.ac.jp ( ) / 59

17 Unix : less hoge hoge more, cat grep kore kore 0445-J furihata@cmc.osaka-u.ac.jp ( ) / 59

18 Unix ( ) Emacs emacs hoge hoge ( emacs. C- Ctrl M- Esc ) C-x C-f C-x C-s C-x C-c C-g C-s hoge. emacs C- M-w C-w C-y hoge ( ) ( ) furihata@cmc.osaka-u.ac.jp ( ) / J

19 Unix ( ) vi vi hoge hoge ( vi. ) i Esc ( ) h,j,k,l :wq :q! x, dd 1, 1 ( ) yy p 1. ( ) 0445-J furihata@cmc.osaka-u.ac.jp ( ) / 59

20 : Emacs + vi = spacemacs: first release. ver J furihata@cmc.osaka-u.ac.jp ( ) / 59

21 Unix Unix = CUI CUI CUI CUI = (shell) CUI CUI Emacs vi Unix 0445-J furihata@cmc.osaka-u.ac.jp ( ) / 59

22 Part II: ( ) / 59

23 Part ( ) GO 0491-J furihata@cmc.osaka-u.ac.jp ( ) / 59

24 ( ) / 59

25 (SIMD): 1 SX-9 (NEC) GFlops. * (Top ) Summit (IBM Power9 chip, Top500 1 ): 122 PFlops, 2,282,544. (, Top500 2 ): 93 PFlops, 10,649,600 ABCI (, Top500 5 ): 19.9 PFlops, 391,680 ( Top ): 10.5 PFlops, 705,024. Summit: 2.8P, : 1.3P ABCI: 420T, : 1.26 P, ( ) Summit: 8.8MW, : 15.3 MW ABCI: 1.6MW, : 12.7 MW * MW J furihata@cmc.osaka-u.ac.jp ( ) / 59

26 : SX-ACE TFlops = PFlops, * TOP (715 TFlops) 6 ( 1 ) 96TB = 0.1 PB. ( ) 700 KW. * 1000 Summit 0.35%, 3.5%, 8%, 0491-J furihata@cmc.osaka-u.ac.jp ( ) / 59

27 I (creative commons -attribution, share alike 3.0 by A.I.Graphic) ( ) / 59

28 II ILLIAC I, II, III ( 1952, 1962, SIMD 1966) Cray-1 ( 1976, MFLOPS). 80 (SX-5, 41 TFLOPS, 2002: SX-9, 131 TFLOPS, 2009). TOP Japanese Computenik Blue Gene (2004) 32,768, ,992 (2011) PFLOPS 2 (2013) CPU 33.8 PFLOPS. (2016) CPU 93 PFLOPS. Summit(2018) CPU 122 PFLOPS J furihata@cmc.osaka-u.ac.jp ( ) / 59

29 III (124/top ) CPU Cray IBM CPU (36) NEC CPU ( 206) CPU ( ) (22), (21), (18), 10 (top500 ) J furihata@cmc.osaka-u.ac.jp ( ) / 59

30 , ( ) / 59

31 I Input Data Operation Output Data ( ) / 59

32 II ( ) or Input Operation Output = 5050 for i := 1 to 100 do result += i; ( ) * 100 / J furihata@cmc.osaka-u.ac.jp ( ) / 59

33 III-1 CPU, HDD Input Fast Operation Output ( ) / 59

34 III CPU clock (MHz) Year furihata@cmc.osaka-u.ac.jp ( ) J 34 / 59

35 IV-1 ( ) - - SIMD (Single Instruction Multiple Data) Input Vector Operation Output furihata@cmc.osaka-u.ac.jp ( ) / 59

36 IV J ( ) / 59

37 V-1 ( ) Input Parallel Operation Output furihata@cmc.osaka-u.ac.jp ( ) / 59

38 V J ( ) / 59

39 VI-1 ( ) Input Parallel Operation Output furihata@cmc.osaka-u.ac.jp ( ) / 59

40 VI J ( ) / 59

41 VII ( ) J furihata@cmc.osaka-u.ac.jp ( ) / 59

42 VIII NEC SX PC GPU SIMD ( ) 0491-J furihata@cmc.osaka-u.ac.jp ( ) / 59

43 ( ) / 59

44 : I a n 1 a 1 (1 + δ) a + (1 a) n δ Speed up Ratio a:50%, delta: 0% a:80%, delta: 0% a:90%, delta: 0% a:95%, delta: 0% a:99%, delta: 0% Speed up Ratio a:50%, delta: 0% a:80%, delta: 0% a:90%, delta: 0% a:95%, delta: 0% a:99%, delta: 0% Number of Processors Number of Processors furihata@cmc.osaka-u.ac.jp ( ) / J

45 II Speed up Ratio a:50%, delta: 50% a:80%, delta: 50% a:90%, delta: 50% a:95%, delta: 50% a:99%, delta: 50% Speed up Ratio a:50%, delta: 50% a:80%, delta: 50% a:90%, delta: 50% a:95%, delta: 50% a:99%, delta: 50% Number of Processors Number of Processors Speed up Ratio a:50%, delta: 200% a:80%, delta: 200% a:90%, delta: 200% a:95%, delta: 200% a:99%, delta: 200% Speed up Ratio a:50%, delta: 200% a:80%, delta: 200% a:90%, delta: 200% a:95%, delta: 200% a:99%, delta: 200% Number of Processors Number of Processors furihata@cmc.osaka-u.ac.jp ( ) J 45 / 59

46 III J ( ) / 59

47 ( ) / 59

48 MPI (Message Passing Interface), CPU OpenMP (Multi Processing), CPU OpenMP, SIMD/, CUDA J ( ) / 59

49 I SIMD, ( ) for i:=1 to do a[i] := 2*i; J furihata@cmc.osaka-u.ac.jp ( ) / 59

50 II-1 CPU / : (thread ) OpenMP OS - Grand Central Dispatch (MacOS X 10.6, FreeBSD), - intel TBB, Google Go, Rust J furihata@cmc.osaka-u.ac.jp ( ) / 59

51 II-2 OpenMP Fortran : program hello.!$omp parallel!$omp end parallel. end furihata@cmc.osaka-u.ac.jp ( ) / J

52 III-1 : (Message) (NEC ) MPI (Message Passing Interface) 0491-J furihata@cmc.osaka-u.ac.jp ( ) / 59

53 III-2 MPI ( ) J 53 / 59

54 : SIMD / (1) SIMD / : Julia s += x[i] * y[i] end C/C++ on SX-ACE: #pragma vdir nodep #pragma vdir... for(i=1;i<length(x);i++){ s += x[i] * y[i]; } Computation speed GFlops normal SIMD SIMD (4 core CPU ) 5!! * PC (vaio, 4core), 1000, J furihata@cmc.osaka-u.ac.jp ( ) / 59

55 : OpenMP/MPI (1) Parallel : Julia lang: nheads (+) for i=1: Int(rand(Bool)) end C/C++ on SX-ACE: compile option -Pauto Computation speed Gops normal (4 core CPU ) 33!! * PC (vaio, 4core). furihata@cmc.osaka-u.ac.jp ( ) J 55 / 59 parallel

56 : OpenMP/MPI (2) SX-ACE SIMD OpenMP. : 5, : SIMD, OpenMP furihata@cmc.osaka-u.ac.jp ( ) / J

57 : OpenMP/MPI (3) Parallel : Black-Scholes (by Julia language) using ParallelAccelerator Intel begin end (36 core CPU ) 130!! 0491-J furihata@cmc.osaka-u.ac.jp ( ) / 59

58 MPI (SX-ACE) 1 (1 cpu, 4 core) PC 4 4 MPI 0491-J furihata@cmc.osaka-u.ac.jp ( ) / 59

59 Thank You! Thank You! 0491-J ( ) / 59

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