1 /// @file
2 /// Test creation, action, and destruction for mass matrix operator with passive inputs and outputs
3 /// \test Test creation, action, and destruction for mass matrix operator with passive inputs and outputs
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 // Vectors
25 CeedVectorCreate(ceed, num_nodes_x, &x);
26 {
27 CeedScalar x_array[num_nodes_x];
28
29 for (CeedInt i = 0; i < num_nodes_x; i++) x_array[i] = (CeedScalar)i / (num_nodes_x - 1);
30 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_COPY_VALUES, x_array);
31 }
32 CeedVectorCreate(ceed, num_nodes_u, &u);
33 CeedVectorCreate(ceed, num_nodes_u, &v);
34 CeedVectorCreate(ceed, num_elem * q, &q_data);
35
36 // Restrictions
37 for (CeedInt i = 0; i < num_elem; i++) {
38 ind_x[2 * i + 0] = i;
39 ind_x[2 * i + 1] = i + 1;
40 }
41 CeedElemRestrictionCreate(ceed, num_elem, 2, 1, 1, num_nodes_x, CEED_MEM_HOST, CEED_USE_POINTER, ind_x, &elem_restriction_x);
42
43 for (CeedInt i = 0; i < num_elem; i++) {
44 for (CeedInt j = 0; j < p; j++) {
45 ind_u[p * i + j] = i * (p - 1) + j;
46 }
47 }
48 CeedElemRestrictionCreate(ceed, num_elem, p, 1, 1, num_nodes_u, CEED_MEM_HOST, CEED_USE_POINTER, ind_u, &elem_restriction_u);
49
50 CeedInt strides_q_data[3] = {1, q, q};
51 CeedElemRestrictionCreateStrided(ceed, num_elem, q, 1, q * num_elem, strides_q_data, &elem_restriction_q_data);
52
53 // Bases
54 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, 2, q, CEED_GAUSS, &basis_x);
55 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, p, q, CEED_GAUSS, &basis_u);
56
57 // QFunctions
58 CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup);
59 CeedQFunctionAddInput(qf_setup, "weight", 1, CEED_EVAL_WEIGHT);
60 CeedQFunctionAddInput(qf_setup, "dx", 1, CEED_EVAL_GRAD);
61 CeedQFunctionAddOutput(qf_setup, "rho", 1, CEED_EVAL_NONE);
62
63 CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass);
64 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE);
65 CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP);
66 CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP);
67
68 // Operators
69 CeedOperatorCreate(ceed, qf_setup, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_setup);
70 CeedOperatorSetField(op_setup, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, CEED_VECTOR_NONE);
71 CeedOperatorSetField(op_setup, "dx", elem_restriction_x, basis_x, x);
72 CeedOperatorSetField(op_setup, "rho", elem_restriction_q_data, CEED_BASIS_NONE, q_data);
73
74 CeedOperatorCreate(ceed, qf_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_mass);
75 CeedOperatorSetField(op_mass, "rho", elem_restriction_q_data, CEED_BASIS_NONE, q_data);
76 CeedOperatorSetField(op_mass, "u", elem_restriction_u, basis_u, u);
77 CeedOperatorSetField(op_mass, "v", elem_restriction_u, basis_u, v);
78
79 // Note - It is atypical to use only passive fields; this test is intended
80 // as a test for all passive input modes rather than as an example.
81 CeedOperatorApply(op_setup, CEED_VECTOR_NONE, CEED_VECTOR_NONE, CEED_REQUEST_IMMEDIATE);
82 CeedVectorSetValue(u, 1.0);
83 CeedOperatorApply(op_mass, CEED_VECTOR_NONE, CEED_VECTOR_NONE, CEED_REQUEST_IMMEDIATE);
84
85 // Check output
86 {
87 const CeedScalar *v_array;
88 CeedScalar sum = 0.;
89
90 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array);
91 for (CeedInt i = 0; i < num_nodes_u; i++) sum += v_array[i];
92 CeedVectorRestoreArrayRead(v, &v_array);
93 if (fabs(sum - 1.) > 1000. * CEED_EPSILON) printf("Computed Area: %f != True Area: 1.0\n", sum);
94 }
95
96 CeedVectorDestroy(&x);
97 CeedVectorDestroy(&u);
98 CeedVectorDestroy(&v);
99 CeedVectorDestroy(&q_data);
100 CeedElemRestrictionDestroy(&elem_restriction_u);
101 CeedElemRestrictionDestroy(&elem_restriction_x);
102 CeedElemRestrictionDestroy(&elem_restriction_q_data);
103 CeedBasisDestroy(&basis_u);
104 CeedBasisDestroy(&basis_x);
105 CeedQFunctionDestroy(&qf_setup);
106 CeedQFunctionDestroy(&qf_mass);
107 CeedOperatorDestroy(&op_setup);
108 CeedOperatorDestroy(&op_mass);
109 CeedDestroy(&ceed);
110 return 0;
111 }
112