Actual source code: ex59.cxx
2: static char help[] = "Test VecCreate{Seq|MPI}ViennaCLWithArrays.\n\n";
4: #include "petsc.h"
5: #include "petscviennacl.h"
7: int main(int argc, char **argv)
8: {
9: Vec x, y;
10: PetscMPIInt size;
11: PetscInt n = 5;
12: PetscScalar xHost[5] = {0., 1., 2., 3., 4.};
15: PetscInitialize(&argc, &argv, (char *)0, help);
16: MPI_Comm_size(PETSC_COMM_WORLD, &size);
18: if (size == 1) {
19: VecCreateSeqViennaCLWithArrays(PETSC_COMM_WORLD, 1, n, xHost, NULL, &x);
20: } else {
21: VecCreateMPIViennaCLWithArrays(PETSC_COMM_WORLD, 1, n, PETSC_DECIDE, xHost, NULL, &x);
22: }
23: /* print x should be equivalent too xHost */
24: VecView(x, PETSC_VIEWER_STDOUT_WORLD);
25: VecSet(x, 42.0);
26: /* print x should be all 42 */
27: VecView(x, PETSC_VIEWER_STDOUT_WORLD);
29: if (size == 1) {
30: VecCreateSeqWithArray(PETSC_COMM_WORLD, 1, n, xHost, &y);
31: } else {
32: VecCreateMPIWithArray(PETSC_COMM_WORLD, 1, n, PETSC_DECIDE, xHost, &y);
33: }
35: /* print y should be all 42 */
36: VecView(y, PETSC_VIEWER_STDOUT_WORLD);
38: VecDestroy(&y);
39: VecDestroy(&x);
40: PetscFinalize();
41: return 0;
42: }
44: /*TEST
46: build:
47: requires: viennacl defined(PETSC_HAVE_VIENNACL_NO_CUDA)
49: test:
50: nsize: 1
51: suffix: 1
52: args: -viennacl_backend opencl
54: test:
55: nsize: 2
56: suffix: 2
57: args: -viennacl_backend opencl
59: TEST*/