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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libgomp/testsuite/libgomp.c++/loop-1.C | |
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Diffstat (limited to 'libgomp/testsuite/libgomp.c++/loop-1.C')
-rw-r--r-- | libgomp/testsuite/libgomp.c++/loop-1.C | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/libgomp/testsuite/libgomp.c++/loop-1.C b/libgomp/testsuite/libgomp.c++/loop-1.C new file mode 100644 index 000000000..0e83c9583 --- /dev/null +++ b/libgomp/testsuite/libgomp.c++/loop-1.C @@ -0,0 +1,96 @@ +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <omp.h> + +#define MAX 1000 + +void main1() +{ + int i, N1, N2, step; + int a[MAX], b[MAX]; + + N1 = rand () % 13; + N2 = rand () % (MAX - 51) + 50; + step = rand () % 7 + 1; + + printf ("N1 = %d\nN2 = %d\nstep = %d\n", N1, N2, step); + + for (i = N1; i <= N2; i += step) + a[i] = 42+ i; + + /* COUNTING UP (<). Fill in array 'b' in parallel. */ + memset (b, 0, sizeof b); +#pragma omp parallel shared(a,b,N1,N2,step) private(i) + { +#pragma omp for + for (i = N1; i < N2; i += step) + b[i] = a[i]; + } + + /* COUNTING UP (<). Check that all the cells were filled in properly. */ + for (i = N1; i < N2; i += step) + if (a[i] != b[i]) + abort (); + + printf ("for (i = %d; i < %d; i += %d) [OK]\n", N1, N2, step); + + /* COUNTING UP (<=). Fill in array 'b' in parallel. */ + memset (b, 0, sizeof b); +#pragma omp parallel shared(a,b,N1,N2,step) private(i) + { +#pragma omp for + for (i = N1; i <= N2; i += step) + b[i] = a[i]; + } + + /* COUNTING UP (<=). Check that all the cells were filled in properly. */ + for (i = N1; i <= N2; i += step) + if (a[i] != b[i]) + abort (); + + printf ("for (i = %d; i <= %d; i += %d) [OK]\n", N1, N2, step); + + /* COUNTING DOWN (>). Fill in array 'b' in parallel. */ + memset (b, 0, sizeof b); +#pragma omp parallel shared(a,b,N1,N2,step) private(i) + { +#pragma omp for + for (i = N2; i > N1; i -= step) + b[i] = a[i]; + } + + /* COUNTING DOWN (>). Check that all the cells were filled in properly. */ + for (i = N2; i > N1; i -= step) + if (a[i] != b[i]) + abort (); + + printf ("for (i = %d; i > %d; i -= %d) [OK]\n", N2, N1, step); + + /* COUNTING DOWN (>=). Fill in array 'b' in parallel. */ + memset (b, 0, sizeof b); +#pragma omp parallel shared(a,b,N1,N2,step) private(i) + { +#pragma omp for + for (i = N2; i >= N1; i -= step) + b[i] = a[i]; + } + + /* COUNTING DOWN (>=). Check that all the cells were filled in properly. */ + for (i = N2; i >= N1; i -= step) + if (a[i] != b[i]) + abort (); + + printf ("for (i = %d; i >= %d; i -= %d) [OK]\n", N2, N1, step); +} + +int +main () +{ + int i; + + srand (0); + for (i = 0; i < 10; ++i) + main1(); + return 0; +} |