source: tests/concurrent/examples/matrixSum.cfa @ 78e109f

arm-ehcleanup-dtorsenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-expr
Last change on this file since 78e109f was 2e457d8, checked in by Peter A. Buhr <pabuhr@…>, 3 years ago

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1//
2// Cforall Version 1.0.0 Copyright (C) 2017 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// matrixSum.cfa --
8//
9// Author           : Peter A. Buhr
10// Created On       : Mon Oct  9 08:29:28 2017
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Wed Feb 20 08:37:53 2019
13// Update Count     : 16
14//
15
16#include <fstream.hfa>
17#include <kernel.hfa>
18#include <thread.hfa>
19
20thread Adder {
21        int * row, cols, & subtotal;                                            // communication
22};
23
24void ?{}( Adder & adder, int row[], int cols, int & subtotal ) {
25        adder.[ row, cols ] = [ row, cols ];                            // expression disallowed in multi-member access
26        &adder.subtotal = &subtotal;
27}
28
29void main( Adder & adder ) with( adder ) {                              // thread starts here
30        subtotal = 0;
31        for ( c; cols ) {
32                subtotal += row[c];
33        } // for
34}
35
36int main() {
37        /* const */ int rows = 10, cols = 1000;
38        int matrix[rows][cols], subtotals[rows], total = 0;
39        processor p;                                                                            // add kernel thread
40
41        for ( r; rows ) {
42                for ( c; cols ) {
43                        matrix[r][c] = 1;
44                } // for
45        } // for
46        Adder * adders[rows];
47        for ( r; rows ) {                                                                       // start threads to sum rows
48                adders[r] = &(*malloc()){ matrix[r], cols, subtotals[r] };
49//              adders[r] = new( matrix[r], cols, &subtotals[r] );
50        } // for
51        for ( r; rows ) {                                                                       // wait for threads to finish
52                delete( adders[r] );
53                total += subtotals[r];                                                  // total subtotals
54        } // for
55        sout | total;
56}
57
58// Local Variables: //
59// tab-width: 4 //
60// compile-command: "cfa matrixSum.cfa" //
61// End: //
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