xref: /libCEED/tests/t520-operator.c (revision ba59ac12ef3579eea938de09e332a3a266c3cc08)
1 /// @file
2 /// Test creation, action, and destruction for composite mass matrix operator
3 /// \test Test creation, action, and destruction for composite mass matrix operator
4 #include <ceed.h>
5 #include <math.h>
6 #include <stdlib.h>
7 
8 #include "t320-basis.h"
9 #include "t510-operator.h"
10 
11 /* The mesh comprises of two rows of 3 quadrilaterals followed by one row
12      of 6 triangles:
13    _ _ _
14   |_|_|_|
15   |_|_|_|
16   |/|/|/|
17 
18 */
19 
20 int main(int argc, char **argv) {
21   Ceed                ceed;
22   CeedElemRestriction elem_restriction_x_tet, elem_restriction_u_tet, elem_restriction_q_data_tet, elem_restriction_x_hex, elem_restriction_u_hex,
23       elem_restriction_q_data_hex;
24   CeedBasis     basis_x_tet, basis_u_tet, basis_x_hex, basis_u_hex;
25   CeedQFunction qf_setup_tet, qf_mass_tet, qf_setup_hex, qf_mass_hex;
26   CeedOperator  op_setup_tet, op_mass_tet, op_setup_hex, op_mass_hex, op_setup, op_mass;
27   CeedVector    q_data_tet, q_data_hex, x, u, v;
28   CeedInt       num_elem_tet = 6, p_tet = 6, q_tet = 4, num_elem_hex = 6, p_hex = 3, q_hex = 4, dim = 2;
29   CeedInt       n_x = 3, n_y = 3, n_x_tet = 3, n_y_tet = 1, n_x_hex = 3;
30   CeedInt       row, col, offset;
31   CeedInt       num_dofs = (n_x * 2 + 1) * (n_y * 2 + 1), num_qpts_tet = num_elem_tet * q_tet, num_qpts_hex = num_elem_hex * q_hex * q_hex;
32   CeedInt       ind_x_tet[num_elem_tet * p_tet], ind_x_hex[num_elem_hex * p_hex * p_hex];
33   CeedScalar    q_ref[dim * q_tet], q_weight[q_tet];
34   CeedScalar    interp[p_tet * q_tet], grad[dim * p_tet * q_tet];
35 
36   CeedInit(argv[1], &ceed);
37 
38   // Vectors
39   CeedVectorCreate(ceed, dim * num_dofs, &x);
40   {
41     CeedScalar x_array[dim * num_dofs];
42 
43     for (CeedInt i = 0; i < n_y * 2 + 1; i++) {
44       for (CeedInt j = 0; j < n_x * 2 + 1; j++) {
45         x_array[i + j * (n_y * 2 + 1) + 0 * num_dofs] = (CeedScalar)i / (2 * n_y);
46         x_array[i + j * (n_y * 2 + 1) + 1 * num_dofs] = (CeedScalar)j / (2 * n_x);
47       }
48     }
49     CeedVectorSetArray(x, CEED_MEM_HOST, CEED_COPY_VALUES, x_array);
50   }
51   CeedVectorCreate(ceed, num_dofs, &u);
52   CeedVectorCreate(ceed, num_dofs, &v);
53   CeedVectorCreate(ceed, num_qpts_tet, &q_data_tet);
54   CeedVectorCreate(ceed, num_qpts_hex, &q_data_hex);
55 
56   // Set up Tet Elements
57   // -- Restrictions
58   for (CeedInt i = 0; i < num_elem_tet / 2; i++) {
59     col    = i % n_x_tet;
60     row    = i / n_x_tet;
61     offset = col * 2 + row * (n_x_tet * 2 + 1) * 2;
62 
63     ind_x_tet[i * 2 * p_tet + 0] = 2 + offset;
64     ind_x_tet[i * 2 * p_tet + 1] = 9 + offset;
65     ind_x_tet[i * 2 * p_tet + 2] = 16 + offset;
66     ind_x_tet[i * 2 * p_tet + 3] = 1 + offset;
67     ind_x_tet[i * 2 * p_tet + 4] = 8 + offset;
68     ind_x_tet[i * 2 * p_tet + 5] = 0 + offset;
69 
70     ind_x_tet[i * 2 * p_tet + 6]  = 14 + offset;
71     ind_x_tet[i * 2 * p_tet + 7]  = 7 + offset;
72     ind_x_tet[i * 2 * p_tet + 8]  = 0 + offset;
73     ind_x_tet[i * 2 * p_tet + 9]  = 15 + offset;
74     ind_x_tet[i * 2 * p_tet + 10] = 8 + offset;
75     ind_x_tet[i * 2 * p_tet + 11] = 16 + offset;
76   }
77   CeedElemRestrictionCreate(ceed, num_elem_tet, p_tet, dim, num_dofs, dim * num_dofs, CEED_MEM_HOST, CEED_USE_POINTER, ind_x_tet,
78                             &elem_restriction_x_tet);
79   CeedElemRestrictionCreate(ceed, num_elem_tet, p_tet, 1, 1, num_dofs, CEED_MEM_HOST, CEED_USE_POINTER, ind_x_tet, &elem_restriction_u_tet);
80 
81   CeedInt strides_q_data_tet[3] = {1, q_tet, q_tet};
82   CeedElemRestrictionCreateStrided(ceed, num_elem_tet, q_tet, 1, num_qpts_tet, strides_q_data_tet, &elem_restriction_q_data_tet);
83 
84   // -- Bases
85   Build2DSimplex(q_ref, q_weight, interp, grad);
86   CeedBasisCreateH1(ceed, CEED_TOPOLOGY_TRIANGLE, dim, p_tet, q_tet, interp, grad, q_ref, q_weight, &basis_x_tet);
87 
88   Build2DSimplex(q_ref, q_weight, interp, grad);
89   CeedBasisCreateH1(ceed, CEED_TOPOLOGY_TRIANGLE, 1, p_tet, q_tet, interp, grad, q_ref, q_weight, &basis_u_tet);
90 
91   // -- QFunctions
92   CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup_tet);
93   CeedQFunctionAddInput(qf_setup_tet, "_weight", 1, CEED_EVAL_WEIGHT);
94   CeedQFunctionAddInput(qf_setup_tet, "dx", dim * dim, CEED_EVAL_GRAD);
95   CeedQFunctionAddOutput(qf_setup_tet, "rho", 1, CEED_EVAL_NONE);
96 
97   CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass_tet);
98   CeedQFunctionAddInput(qf_mass_tet, "rho", 1, CEED_EVAL_NONE);
99   CeedQFunctionAddInput(qf_mass_tet, "u", 1, CEED_EVAL_INTERP);
100   CeedQFunctionAddOutput(qf_mass_tet, "v", 1, CEED_EVAL_INTERP);
101 
102   // -- Operators
103   // ---- Setup Tet
104   CeedOperatorCreate(ceed, qf_setup_tet, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_setup_tet);
105   CeedOperatorSetField(op_setup_tet, "_weight", CEED_ELEMRESTRICTION_NONE, basis_x_tet, CEED_VECTOR_NONE);
106   CeedOperatorSetField(op_setup_tet, "dx", elem_restriction_x_tet, basis_x_tet, CEED_VECTOR_ACTIVE);
107   CeedOperatorSetField(op_setup_tet, "rho", elem_restriction_q_data_tet, CEED_BASIS_COLLOCATED, q_data_tet);
108   // ---- Mass Tet
109   CeedOperatorCreate(ceed, qf_mass_tet, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_mass_tet);
110   CeedOperatorSetField(op_mass_tet, "rho", elem_restriction_q_data_tet, CEED_BASIS_COLLOCATED, q_data_tet);
111   CeedOperatorSetField(op_mass_tet, "u", elem_restriction_u_tet, basis_u_tet, CEED_VECTOR_ACTIVE);
112   CeedOperatorSetField(op_mass_tet, "v", elem_restriction_u_tet, basis_u_tet, CEED_VECTOR_ACTIVE);
113 
114   // Set up Hex Elements
115   // -- Restrictions
116   for (CeedInt i = 0; i < num_elem_hex; i++) {
117     col    = i % n_x_hex;
118     row    = i / n_x_hex;
119     offset = (n_x_tet * 2 + 1) * (n_y_tet * 2) * (1 + row) + col * 2;
120     for (CeedInt j = 0; j < p_hex; j++) {
121       for (CeedInt k = 0; k < p_hex; k++) ind_x_hex[p_hex * (p_hex * i + k) + j] = offset + k * (n_x_hex * 2 + 1) + j;
122     }
123   }
124   CeedElemRestrictionCreate(ceed, num_elem_hex, p_hex * p_hex, dim, num_dofs, dim * num_dofs, CEED_MEM_HOST, CEED_USE_POINTER, ind_x_hex,
125                             &elem_restriction_x_hex);
126   CeedElemRestrictionCreate(ceed, num_elem_hex, p_hex * p_hex, 1, 1, num_dofs, CEED_MEM_HOST, CEED_USE_POINTER, ind_x_hex, &elem_restriction_u_hex);
127 
128   CeedInt strides_q_data_hex[3] = {1, q_hex * q_hex, q_hex * q_hex};
129   CeedElemRestrictionCreateStrided(ceed, num_elem_hex, q_hex * q_hex, 1, num_qpts_hex, strides_q_data_hex, &elem_restriction_q_data_hex);
130 
131   // -- Bases
132   CeedBasisCreateTensorH1Lagrange(ceed, dim, dim, p_hex, q_hex, CEED_GAUSS, &basis_x_hex);
133   CeedBasisCreateTensorH1Lagrange(ceed, dim, 1, p_hex, q_hex, CEED_GAUSS, &basis_u_hex);
134 
135   // -- QFunctions
136   CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup_hex);
137   CeedQFunctionAddInput(qf_setup_hex, "weight", 1, CEED_EVAL_WEIGHT);
138   CeedQFunctionAddInput(qf_setup_hex, "dx", dim * dim, CEED_EVAL_GRAD);
139   CeedQFunctionAddOutput(qf_setup_hex, "rho", 1, CEED_EVAL_NONE);
140 
141   CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass_hex);
142   CeedQFunctionAddInput(qf_mass_hex, "rho", 1, CEED_EVAL_NONE);
143   CeedQFunctionAddInput(qf_mass_hex, "u", 1, CEED_EVAL_INTERP);
144   CeedQFunctionAddOutput(qf_mass_hex, "v", 1, CEED_EVAL_INTERP);
145 
146   // -- Operators
147   CeedOperatorCreate(ceed, qf_setup_hex, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_setup_hex);
148   CeedOperatorSetField(op_setup_hex, "weight", CEED_ELEMRESTRICTION_NONE, basis_x_hex, CEED_VECTOR_NONE);
149   CeedOperatorSetField(op_setup_hex, "dx", elem_restriction_x_hex, basis_x_hex, CEED_VECTOR_ACTIVE);
150   CeedOperatorSetField(op_setup_hex, "rho", elem_restriction_q_data_hex, CEED_BASIS_COLLOCATED, q_data_hex);
151 
152   CeedOperatorCreate(ceed, qf_mass_hex, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_mass_hex);
153   CeedOperatorSetField(op_mass_hex, "rho", elem_restriction_q_data_hex, CEED_BASIS_COLLOCATED, q_data_hex);
154   CeedOperatorSetField(op_mass_hex, "u", elem_restriction_u_hex, basis_u_hex, CEED_VECTOR_ACTIVE);
155   CeedOperatorSetField(op_mass_hex, "v", elem_restriction_u_hex, basis_u_hex, CEED_VECTOR_ACTIVE);
156 
157   // Set up Composite Operators
158   // -- Create
159   CeedCompositeOperatorCreate(ceed, &op_setup);
160   // -- Add SubOperators
161   CeedCompositeOperatorAddSub(op_setup, op_setup_tet);
162   CeedCompositeOperatorAddSub(op_setup, op_setup_hex);
163 
164   // -- Create
165   CeedCompositeOperatorCreate(ceed, &op_mass);
166   // -- Add SubOperators
167   CeedCompositeOperatorAddSub(op_mass, op_mass_tet);
168   CeedCompositeOperatorAddSub(op_mass, op_mass_hex);
169 
170   // Apply Setup Operator
171   CeedOperatorApply(op_setup, x, CEED_VECTOR_NONE, CEED_REQUEST_IMMEDIATE);
172 
173   // Apply Mass Operator
174   CeedVectorSetValue(u, 0.0);
175   CeedOperatorApply(op_mass, u, v, CEED_REQUEST_IMMEDIATE);
176 
177   // Check output
178   {
179     const CeedScalar *v_array;
180 
181     CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array);
182     for (CeedInt i = 0; i < num_dofs; i++) {
183       if (fabs(v_array[i]) > 1e-14) printf("[%" CeedInt_FMT "] v %g != 0.0\n", i, v_array[i]);
184     }
185     CeedVectorRestoreArrayRead(v, &v_array);
186   }
187 
188   // Cleanup
189   CeedVectorDestroy(&x);
190   CeedVectorDestroy(&u);
191   CeedVectorDestroy(&v);
192   CeedVectorDestroy(&q_data_tet);
193   CeedVectorDestroy(&q_data_hex);
194   CeedElemRestrictionDestroy(&elem_restriction_u_tet);
195   CeedElemRestrictionDestroy(&elem_restriction_x_tet);
196   CeedElemRestrictionDestroy(&elem_restriction_q_data_tet);
197   CeedElemRestrictionDestroy(&elem_restriction_u_hex);
198   CeedElemRestrictionDestroy(&elem_restriction_x_hex);
199   CeedElemRestrictionDestroy(&elem_restriction_q_data_hex);
200   CeedBasisDestroy(&basis_u_tet);
201   CeedBasisDestroy(&basis_x_tet);
202   CeedBasisDestroy(&basis_u_hex);
203   CeedBasisDestroy(&basis_x_hex);
204   CeedQFunctionDestroy(&qf_setup_tet);
205   CeedQFunctionDestroy(&qf_mass_tet);
206   CeedOperatorDestroy(&op_setup_tet);
207   CeedOperatorDestroy(&op_mass_tet);
208   CeedQFunctionDestroy(&qf_setup_hex);
209   CeedQFunctionDestroy(&qf_mass_hex);
210   CeedOperatorDestroy(&op_setup_hex);
211   CeedOperatorDestroy(&op_mass_hex);
212   CeedOperatorDestroy(&op_setup);
213   CeedOperatorDestroy(&op_mass);
214   CeedDestroy(&ceed);
215   return 0;
216 }
217