メタコンピュータ構成方式の研究

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よしおいしなみ
5 years ago
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2 : ( ) Internet, Computational Resources,

3 , MPI, PVM - RPC, (ORB),,

4 Java (JVM) Java?,, code verification & sand box

5 Java JIT

7 Java (JVM) : Java (, ) cf., disconnected operation - Java

8 MobaThread.goTo( ); cf. Aglets (IBM), Voyager (ObjectSpace) UI UI GUI

9 Place / Java ( ) ( ), JVM (, OS)

10 Java

11 : ) goto( ), migrateto( )

12 (cont d) Migration safe point JVM JVM cf.,,, JVM Code patching Sun Lab. JVM GC (garbage collection) safe point

13 by by Java RyORB -Java ORB by MOBA Place on Java

15 Voyager ( ) 2 : UltraSPARC-II 167 MHz, UltraSPARC-II 296 MHz SunOS Mbps 1 MOBA Voyager Voyager start-up MOBA

16 Object Request Broker (ORB) 64 bit 20 MOBA: ORBs: Throughput of data transfer Mbit / sec MOBA RMI HORB Transferred data size (Mbyte)

17 Java,,,, :

19 remoteobj. variable = 500; : (JIT) cf. cjvm (IBM) Semantic Expansion ( ) Java remoteobj = new Object();

20 shujit Java (JIT) MetaVM shujit shujit MetaVM Java Java shujit MetaVM MetaVM Java

21 Java + VMAddress addr = new VMAddress( ); MetaVM.instantiationVM(addr); // Object obj = new Object(); // MetaVM.instantiationVM(); // :

22 : JIT JVM JIT JVM JIT JIT

23 JIT JIT MetaVM shujit

24 new newarray, anewarray, multianewarray getfield, putfield [ailfdbcs]aload, [ailfdbcs]astore arraylength invoke{virtual, special, interface} monitorenter, monitorexit checkcast, instanceof

25 MetaVM, Java : getfield Proxy JIT Skeleton

26 : if ((obj instanceof Proxy) && remote_flag) obj MetaVM else obj ) Proxy MetaVM remote_flag Proxy MetaVM

27 (cont d) : if (( ) &&!( )) else ) Throwable, InetAddress Number, Boolean, Character Immutable

28 Java RMI, Voyager 2.0.2, HORB 1.3 beta4 1: Pentium III 600 MHz, Linux 2.4.0, JDK : K MHz, Linux , JDK Mbps 1

29 : Latency of method invocation (via network) (void method(object, Object)) usec HORB RyORB MetaVM RMI Voyager RMI, Voyager RyORB, HORB

30 : int MetaVM int get(), void set(int value) Latency of field access (via network) write read usec MetaVM RyORB HORB Voyager RMI

31 Linpack benchmark 500 x 500 Linpack benchmark `no array Mflop/s without JIT shujit MetaVM (no array) MetaVM (full spec.)

32 SPEC JVM98 without JIT shujit MetaVM (no array) MetaVM (full spec.) _227_mtrt _202_jess _201_compress _209_db _222_mpegaudio _228_jack _213_javac Geometric Mean

33 (i.e. `no array )

34 ORB cf. RMI, HORB, CORBA, (JIT) MetaVM shujit (JIT )

35 Java Just-in-Time

36 shujit x86, Sun JVM, Linux & FreeBSD JIT JIT MataVM : Java ( ) strictfp ( ) Jaguar (Matt Welsh, UCB) : 7055, 8143

37 Java shujit compiled code n O(n) x86 flush_cache dmul addl $8,%esp dld fmull (%esp) dmul dst

38 (cont d) TYA : cf. TYA : EAX (stack state) shujit 5 2 EAX memory memory memory memory memory EDX memory memory ECX EDX memory ECX memory memory EDX ECX memory JVM stack state 0 state 1 state 2 state 3 state 4

39 ( ) strictfp Java i.e. IEEE 754 JVM )

40 shujit : n Adaptive compilation Lazy compilation shujit n

41 (cont d) threshold byte Size of JIT compilied code

42 - compiled code Method inlining alignment peephole 1 2

43 SPEC JVM98 (K MHz) IBM JDK 1.3 HotSpot Server VM HotSpot Client VM IBM JDK OpenJIT JBuilder JIT shujit TYA sunwjit Kaffe interpreter _227_mtrt _202_jess _201_compress _209_db _222_mpegaudio _228_jack _213_javac Geometric Mean score

44 (cont d) Mflops IBM JDK 1.3 IBM JDK HotSpot Server VM HotSpot Client VM GCJ (-O2 with.java) GCJ (-O2 with.class) shujit JBuilder JIT Kaffe OpenJIT TYA GCJ (-O0 with.java) GCJ (-O0 with.class) sunwjit interpreter Linpack benchmark 500 x 500 (Pentium II / 333 MHz)

45 JIT MetaVM, strictfp, Jaguar, FreeBSD

46 Java JIT

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untitled Java Just-in-Time Cost-Effective Compilation Techniques for Java Just-in-Time Compilers Kazuyuki SHUDO, Satoshi SEKIGUCHI, and Yoichi MURAOKA Java Just-in-Time Java 1 Just-in-Time Java Java 1. Java Just-in-Time