1 /// @file
2 /// Test CeedOperatorApplyAdd
3 /// \test Test CeedOperatorApplyAdd
4 #include <ceed.h>
5 #include <math.h>
6 #include <stdio.h>
7 #include <stdlib.h>
8
9 #include "t500-operator.h"
10
main(int argc,char ** argv)11 int main(int argc, char **argv) {
12 Ceed ceed;
13 CeedElemRestriction elem_restriction_x, elem_restriction_u, elem_restriction_q_data;
14 CeedBasis basis_x, basis_u;
15 CeedQFunction qf_setup, qf_mass;
16 CeedOperator op_setup, op_mass;
17 CeedVector q_data, x, u, v;
18 CeedInt num_elem = 15, p = 5, q = 8;
19 CeedInt num_nodes_x = num_elem + 1, num_nodes_u = num_elem * (p - 1) + 1;
20 CeedInt ind_x[num_elem * 2], ind_u[num_elem * p];
21
22 CeedInit(argv[1], &ceed);
23
24 CeedVectorCreate(ceed, num_nodes_x, &x);
25 {
26 CeedScalar x_array[num_nodes_x];
27 for (CeedInt i = 0; i < num_nodes_x; i++) x_array[i] = (CeedScalar)i / (num_nodes_x - 1);
28 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_COPY_VALUES, x_array);
29 }
30 CeedVectorCreate(ceed, num_nodes_u, &u);
31 CeedVectorCreate(ceed, num_nodes_u, &v);
32 CeedVectorCreate(ceed, num_elem * q, &q_data);
33
34 // Restrictions
35 for (CeedInt i = 0; i < num_elem; i++) {
36 ind_x[2 * i + 0] = i;
37 ind_x[2 * i + 1] = i + 1;
38 }
39 CeedElemRestrictionCreate(ceed, num_elem, 2, 1, 1, num_nodes_x, CEED_MEM_HOST, CEED_USE_POINTER, ind_x, &elem_restriction_x);
40
41 for (CeedInt i = 0; i < num_elem; i++) {
42 for (CeedInt j = 0; j < p; j++) {
43 ind_u[p * i + j] = i * (p - 1) + j;
44 }
45 }
46 CeedElemRestrictionCreate(ceed, num_elem, p, 1, 1, num_nodes_u, CEED_MEM_HOST, CEED_USE_POINTER, ind_u, &elem_restriction_u);
47
48 CeedInt strides_q_data[3] = {1, q, q};
49 CeedElemRestrictionCreateStrided(ceed, num_elem, q, 1, q * num_elem, strides_q_data, &elem_restriction_q_data);
50
51 // Bases
52 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, 2, q, CEED_GAUSS, &basis_x);
53 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, p, q, CEED_GAUSS, &basis_u);
54
55 // QFunctions
56 CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup);
57 CeedQFunctionAddInput(qf_setup, "weight", 1, CEED_EVAL_WEIGHT);
58 CeedQFunctionAddInput(qf_setup, "dx", 1, CEED_EVAL_GRAD);
59 CeedQFunctionAddOutput(qf_setup, "rho", 1, CEED_EVAL_NONE);
60
61 CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass);
62 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE);
63 CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP);
64 CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP);
65
66 // Operators
67 CeedOperatorCreate(ceed, qf_setup, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_setup);
68 CeedOperatorSetField(op_setup, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, CEED_VECTOR_NONE);
69 CeedOperatorSetField(op_setup, "dx", elem_restriction_x, basis_x, CEED_VECTOR_ACTIVE);
70 CeedOperatorSetField(op_setup, "rho", elem_restriction_q_data, CEED_BASIS_NONE, CEED_VECTOR_ACTIVE);
71
72 CeedOperatorCreate(ceed, qf_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_mass);
73 CeedOperatorSetField(op_mass, "rho", elem_restriction_q_data, CEED_BASIS_NONE, q_data);
74 CeedOperatorSetField(op_mass, "u", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE);
75 CeedOperatorSetField(op_mass, "v", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE);
76
77 CeedOperatorApply(op_setup, x, q_data, CEED_REQUEST_IMMEDIATE);
78
79 // Apply with V = 0
80 CeedVectorSetValue(u, 1.0);
81 CeedVectorSetValue(v, 0.0);
82 CeedOperatorApplyAdd(op_mass, u, v, CEED_REQUEST_IMMEDIATE);
83
84 // Check output
85 {
86 const CeedScalar *v_array;
87 CeedScalar sum = 0.;
88
89 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array);
90 for (CeedInt i = 0; i < num_nodes_u; i++) sum += v_array[i];
91 CeedVectorRestoreArrayRead(v, &v_array);
92 if (fabs(sum - 1.) > 1000. * CEED_EPSILON) printf("Computed Area: %f != True Area: 1.0\n", sum);
93 }
94
95 // Apply with V = 1
96 CeedVectorSetValue(v, 1.0);
97 CeedOperatorApplyAdd(op_mass, u, v, CEED_REQUEST_IMMEDIATE);
98
99 // Check output
100 {
101 const CeedScalar *v_array;
102 CeedScalar sum = -num_nodes_u;
103
104 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array);
105 for (CeedInt i = 0; i < num_nodes_u; i++) sum += v_array[i];
106 CeedVectorRestoreArrayRead(v, &v_array);
107 if (fabs(sum - 1.) > 1000. * CEED_EPSILON) printf("Computed Area: %f != True Area: 1.0\n", sum);
108 }
109
110 CeedVectorDestroy(&x);
111 CeedVectorDestroy(&u);
112 CeedVectorDestroy(&v);
113 CeedVectorDestroy(&q_data);
114 CeedElemRestrictionDestroy(&elem_restriction_u);
115 CeedElemRestrictionDestroy(&elem_restriction_x);
116 CeedElemRestrictionDestroy(&elem_restriction_q_data);
117 CeedBasisDestroy(&basis_u);
118 CeedBasisDestroy(&basis_x);
119 CeedQFunctionDestroy(&qf_setup);
120 CeedQFunctionDestroy(&qf_mass);
121 CeedOperatorDestroy(&op_setup);
122 CeedOperatorDestroy(&op_mass);
123 CeedDestroy(&ceed);
124 return 0;
125 }
126