StupidFib_collab - Stupid-Fib in parallel as a class [1035571]

< > BotCompany Repo | #1035571 // StupidFib_collab - Stupid-Fib in parallel as a class

JavaX fragment (include) [tags: use-pretranspiled]

srecord noeq StupidFib_collab(ICollab collab, int n) {
  // if n <= parallelizationThreshold, we calculate serially
  settable int parallelizationThreshold = 24;

  // main calculation function
  // (if one core, go serial, otherwise parallelize)
  long get() {
    if (collab.coresToUse() == 1)
      ret serialComputation(n);
    else
      ret collab_computeLong(collab, receiver -> new Step(n, receiver));
  }
  
  // serial version
  long serialComputation(int n) {
    ret stupidFib(n);
  }
  
  // individual calculation step for parallel version
  record noeq Step(int n, LongConsumer continuation) extends LongPairCollector is Runnable {
    // if below parallelization threshold, go serial, otherwise parallelize
    run {
      if (n < max(3, parallelizationThreshold))
        continuation.accept(serialComputation(n));
      else {
        collab.addWork(new Step(n-1, setterForA()));
        collab.addWork(new Step(n-2, setterForB()));
      }
    }
    
    // calculate and forward result when subcomputations have completed
    void complete(long a, long b) {
      continuation.accept(a+b);
    }
  }
}

Author comment

Began life as a copy of #1035566

Travelled to 3 computer(s): elmgxqgtpvxh, mowyntqkapby, mqqgnosmbjvj

Snippet ID:

#1035571

Snippet name:

StupidFib_collab - Stupid-Fib in parallel as a class

Eternal ID of this version:

#1035571/26

Text MD5:

cbe9761503b6df8ad35540f2320fb56d

Transpilation MD5:

1818c1204f84d219c8c7529cfa57be4b

Author:

stefan

Category:

javax / maths

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2022-06-20 15:57:50

Source code size:

1156 bytes / 36 lines

Pitched / IR pitched:

No / No

Views / Downloads:

123 / 250

Version history:

25 change(s)

Referenced in:

[show references]

1	srecord noeq StupidFib_collab(ICollab collab, int n) {
2	// if n <= parallelizationThreshold, we calculate serially
3	settable int parallelizationThreshold = 24;
4
5	// main calculation function
6	// (if one core, go serial, otherwise parallelize)
7	long get() {
8	if (collab.coresToUse() == 1)
9	ret serialComputation(n);
10	else
11	ret collab_computeLong(collab, receiver -> new Step(n, receiver));
12	}
13
14	// serial version
15	long serialComputation(int n) {
16	ret stupidFib(n);
17	}
18
19	// individual calculation step for parallel version
20	record noeq Step(int n, LongConsumer continuation) extends LongPairCollector is Runnable {
21	// if below parallelization threshold, go serial, otherwise parallelize
22	run {
23	if (n < max(3, parallelizationThreshold))
24	continuation.accept(serialComputation(n));
25	else {
26	collab.addWork(new Step(n-1, setterForA()));
27	collab.addWork(new Step(n-2, setterForB()));
28	}
29	}
30
31	// calculate and forward result when subcomputations have completed
32	void complete(long a, long b) {
33	continuation.accept(a+b);
34	}
35	}
36	}