1 /// @file
2 /// Test creation, transpose use, and destruction of an element restriction at points for single elements
3 /// \test Test creation, transpose use, and destruction of an element restriction at points for single elements
4 #include <ceed.h>
5 #include <math.h>
6 #include <stdio.h>
7
main(int argc,char ** argv)8 int main(int argc, char **argv) {
9 Ceed ceed;
10 CeedInt num_elem = 3, num_points = num_elem * 2;
11 CeedInt ind[(num_elem + 1) + num_points];
12 CeedVector x, y;
13 CeedElemRestriction elem_restriction;
14
15 CeedInit(argv[1], &ceed);
16
17 {
18 CeedInt offset = num_elem + 1;
19 CeedInt point_index = num_elem;
20
21 for (CeedInt i = 0; i < num_elem; i++) {
22 CeedInt num_points_in_elem = (i + 1) % num_elem + 1;
23
24 ind[i] = offset;
25 for (CeedInt j = 0; j < num_points_in_elem; j++) {
26 ind[offset + j] = point_index;
27 point_index = (point_index + 1) % num_points;
28 }
29 offset += num_points_in_elem;
30 }
31 ind[num_elem] = offset;
32 }
33 CeedElemRestrictionCreateAtPoints(ceed, num_elem, num_points, 1, num_points, CEED_MEM_HOST, CEED_COPY_VALUES, ind, &elem_restriction);
34
35 CeedElemRestrictionCreateVector(elem_restriction, &x, NULL);
36 CeedVectorSetValue(x, 0.0);
37 {
38 CeedInt min_points, max_points;
39
40 CeedElemRestrictionGetMinPointsInElement(elem_restriction, &min_points);
41 CeedElemRestrictionGetMaxPointsInElement(elem_restriction, &max_points);
42 if (min_points != 1 || max_points != num_elem) {
43 // LCOV_EXCL_START
44 printf("Error in min/max points: min %" CeedInt_FMT " max %" CeedInt_FMT "\n", min_points, max_points);
45 // LCOV_EXCL_STOP
46 }
47 CeedVectorCreate(ceed, max_points, &y);
48 CeedVectorSetValue(y, 1.0);
49 }
50
51 {
52 for (CeedInt i = 0; i < num_elem; i++) {
53 CeedInt point_index = num_elem;
54 const CeedScalar *read_array;
55
56 CeedVectorSetValue(x, 0.0);
57 CeedElemRestrictionApplyAtPointsInElement(elem_restriction, i, CEED_TRANSPOSE, y, x, CEED_REQUEST_IMMEDIATE);
58
59 CeedVectorGetArrayRead(x, CEED_MEM_HOST, &read_array);
60 for (CeedInt j = 0; j < num_elem; j++) {
61 CeedInt num_points_in_elem = (j + 1) % num_elem + 1;
62
63 for (CeedInt k = 0; k < num_points_in_elem; k++) {
64 if (fabs(read_array[point_index] - (i == j ? 1.0 : 0.0)) > 10 * CEED_EPSILON) {
65 // LCOV_EXCL_START
66 printf("Error in restricted array x[%" CeedInt_FMT "] = %f\n", point_index, (CeedScalar)read_array[point_index]);
67 // LCOV_EXCL_STOP
68 }
69 point_index = (point_index + 1) % num_points;
70 }
71 }
72 CeedVectorRestoreArrayRead(x, &read_array);
73 }
74 }
75
76 CeedVectorDestroy(&x);
77 CeedVectorDestroy(&y);
78 CeedElemRestrictionDestroy(&elem_restriction);
79 CeedDestroy(&ceed);
80 return 0;
81 }
82