1 /// @file
2 /// Test grad transpose with a 2D Simplex non-tensor H^1 basis
3 /// \test Test grad transpose with a 2D Simplex non-tensor H^1 basis
4 #include <ceed.h>
5 #include <math.h>
6 #include <stdio.h>
7
8 #include "t320-basis.h"
9
main(int argc,char ** argv)10 int main(int argc, char **argv) {
11 Ceed ceed;
12 CeedVector u, v;
13 const CeedInt p = 6, q = 4, dim = 2;
14 CeedBasis basis;
15 CeedScalar q_ref[dim * q], q_weight[q];
16 CeedScalar interp[p * q], grad[dim * p * q];
17 CeedScalar column_sum[p];
18
19 CeedInit(argv[1], &ceed);
20
21 CeedVectorCreate(ceed, q * dim, &u);
22 CeedVectorSetValue(u, 1);
23 CeedVectorCreate(ceed, p, &v);
24 CeedVectorSetValue(v, 0);
25
26 Build2DSimplex(q_ref, q_weight, interp, grad);
27 CeedBasisCreateH1(ceed, CEED_TOPOLOGY_TRIANGLE, 1, p, q, interp, grad, q_ref, q_weight, &basis);
28
29 CeedBasisApply(basis, 1, CEED_TRANSPOSE, CEED_EVAL_GRAD, u, v);
30
31 // Check values at quadrature points
32 for (int i = 0; i < p; i++) {
33 column_sum[i] = 0;
34 for (int j = 0; j < q * dim; j++) {
35 column_sum[i] += grad[i + j * p];
36 }
37 }
38 {
39 const CeedScalar *v_array;
40
41 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array);
42 for (int i = 0; i < p; i++) {
43 if (fabs(column_sum[i] - v_array[i]) > 100. * CEED_EPSILON) printf("[%" CeedInt_FMT "] %f != %f\n", i, v_array[i], column_sum[i]);
44 }
45 CeedVectorRestoreArrayRead(v, &v_array);
46 }
47
48 CeedVectorDestroy(&u);
49 CeedVectorDestroy(&v);
50 CeedBasisDestroy(&basis);
51 CeedDestroy(&ceed);
52 return 0;
53 }
54