Java


tedglewis@friction-free-economy.com
file:///I:/tppmsgs/msgs88.htm#8823
Java UNCOL
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class LIST 
{ 
	synchronized public   get (List L; char c) {...} 
} ...   

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L2 = new LIST (...);

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get (L2...); 
get (L1...);
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  2. tree - () ;
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fan i = 1 to 10; 
	send X[i] to X, Y[i] to Y; 
	{ 
		double X, Y, Z; 
		Z = X + Y
	} 
	return Z to Z[i]; 
endfan

fan , cpus. Java 10 . : Z = X + Y, , i, X Y. Z .

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tree i = 1 to 10 send X[2*i-1] to left, X[i] to right; 
{ 
	int left, right, sum,;
	 sum = left + right 
} return sum to X[2*i-1]; 
endtree

10/2 = 5 cpus ( ) X. , . 5/2 = 3 , , 3/2 = 1 cpu. - "tree" , X (log2) .

fan tree, par pipe . Par - :

par i = 1 to 10 1: send A to a, B to b; 
{ 
	int a; 
	/*  - */ 
} return a to A;
2: send X to c; 
{ 
	int c; 
	/*  -  */ 
} return c;
3: /*  .. -     */ ... 
endpar

Par - , fork Unix, , , C - Unix fork-join. , .

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pipe i = 1 to 10; 
1: send ... {compute...} return...} 
2: send ... {compute...} return...}
 ... 
n: send ... {compute...} return} 
endpipe

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(Ted Lewis) - . Technology Assessment Group (TAG) - , - . IEEE Computer Society. IEEE Software Computer; IEEE Spectrum IEEE Internet Computing. ; - "The Friction-Free Economy" (HarperBusiness Books, 1997) Internet . ; "Binary Critic" IEEE Computer.

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