xref: /libCEED/tests/t526-operator.c (revision e64bb3f3ed2986a0c10dec3b47522d734c6e367d)
1 /// @file
2 /// Test FLOP estimation for composite mass matrix operator
3 /// \test Test FLOP estimation for composite mass matrix operator
4 #include <ceed.h>
5 #include <math.h>
6 #include <stdio.h>
7 #include <stdlib.h>
8 
9 #include "t320-basis.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   CeedSize            flop_estimate;
23   CeedElemRestriction elem_restriction_x_tet, elem_restriction_u_tet, elem_restriction_q_data_tet, elem_restriction_x_hex, elem_restriction_u_hex,
24       elem_restriction_q_data_hex;
25   CeedBasis     basis_x_tet, basis_u_tet, basis_x_hex, basis_u_hex;
26   CeedQFunction qf_mass;
27   CeedOperator  op_mass_tet, op_mass_hex, op_mass;
28   CeedVector    q_data_tet, q_data_hex;
29   CeedInt       num_elem_tet = 6, p_tet = 6, q_tet = 4, num_elem_hex = 6, p_hex = 3, q_hex = 4, dim = 2;
30   CeedInt       n_x = 3, n_y = 3, n_x_tet = 3, n_y_tet = 1, n_x_hex = 3;
31   CeedInt       row, col, offset;
32   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;
33   CeedInt       ind_x_tet[num_elem_tet * p_tet], ind_x_hex[num_elem_hex * p_hex * p_hex];
34   CeedScalar    q_ref[dim * q_tet], q_weight[q_tet];
35   CeedScalar    interp[p_tet * q_tet], grad[dim * p_tet * q_tet];
36 
37   CeedInit(argv[1], &ceed);
38 
39   // Qdata Vectors
40   CeedVectorCreate(ceed, num_qpts_tet, &q_data_tet);
41   CeedVectorCreate(ceed, num_qpts_hex, &q_data_hex);
42 
43   // Set up Tet Elements
44   // -- Restrictions
45   for (CeedInt i = 0; i < num_elem_tet / 2; i++) {
46     col    = i % n_x_tet;
47     row    = i / n_x_tet;
48     offset = col * 2 + row * (n_x_tet * 2 + 1) * 2;
49 
50     ind_x_tet[i * 2 * p_tet + 0] = 2 + offset;
51     ind_x_tet[i * 2 * p_tet + 1] = 9 + offset;
52     ind_x_tet[i * 2 * p_tet + 2] = 16 + offset;
53     ind_x_tet[i * 2 * p_tet + 3] = 1 + offset;
54     ind_x_tet[i * 2 * p_tet + 4] = 8 + offset;
55     ind_x_tet[i * 2 * p_tet + 5] = 0 + offset;
56 
57     ind_x_tet[i * 2 * p_tet + 6]  = 14 + offset;
58     ind_x_tet[i * 2 * p_tet + 7]  = 7 + offset;
59     ind_x_tet[i * 2 * p_tet + 8]  = 0 + offset;
60     ind_x_tet[i * 2 * p_tet + 9]  = 15 + offset;
61     ind_x_tet[i * 2 * p_tet + 10] = 8 + offset;
62     ind_x_tet[i * 2 * p_tet + 11] = 16 + offset;
63   }
64   CeedElemRestrictionCreate(ceed, num_elem_tet, p_tet, dim, num_dofs, dim * num_dofs, CEED_MEM_HOST, CEED_USE_POINTER, ind_x_tet,
65                             &elem_restriction_x_tet);
66   CeedElemRestrictionCreate(ceed, num_elem_tet, p_tet, 1, 1, num_dofs, CEED_MEM_HOST, CEED_USE_POINTER, ind_x_tet, &elem_restriction_u_tet);
67 
68   CeedInt strides_q_data_tet[3] = {1, q_tet, q_tet};
69   CeedElemRestrictionCreateStrided(ceed, num_elem_tet, q_tet, 1, num_qpts_tet, strides_q_data_tet, &elem_restriction_q_data_tet);
70 
71   // -- Bases
72   Build2DSimplex(q_ref, q_weight, interp, grad);
73   CeedBasisCreateH1(ceed, CEED_TOPOLOGY_TRIANGLE, dim, p_tet, q_tet, interp, grad, q_ref, q_weight, &basis_x_tet);
74 
75   Build2DSimplex(q_ref, q_weight, interp, grad);
76   CeedBasisCreateH1(ceed, CEED_TOPOLOGY_TRIANGLE, 1, p_tet, q_tet, interp, grad, q_ref, q_weight, &basis_u_tet);
77 
78   // -- QFunction
79   CeedQFunctionCreateInteriorByName(ceed, "MassApply", &qf_mass);
80 
81   // -- Operators
82   // ---- Mass Tet
83   CeedOperatorCreate(ceed, qf_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_mass_tet);
84   CeedOperatorSetField(op_mass_tet, "u", elem_restriction_u_tet, basis_u_tet, CEED_VECTOR_ACTIVE);
85   CeedOperatorSetField(op_mass_tet, "qdata", elem_restriction_q_data_tet, CEED_BASIS_NONE, q_data_tet);
86   CeedOperatorSetField(op_mass_tet, "v", elem_restriction_u_tet, basis_u_tet, CEED_VECTOR_ACTIVE);
87 
88   // Set up Hex Elements
89   // -- Restrictions
90   for (CeedInt i = 0; i < num_elem_hex; i++) {
91     col    = i % n_x_hex;
92     row    = i / n_x_hex;
93     offset = (n_x_tet * 2 + 1) * (n_y_tet * 2) * (1 + row) + col * 2;
94     for (CeedInt j = 0; j < p_hex; j++) {
95       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;
96     }
97   }
98   CeedElemRestrictionCreate(ceed, num_elem_hex, p_hex * p_hex, dim, num_dofs, dim * num_dofs, CEED_MEM_HOST, CEED_USE_POINTER, ind_x_hex,
99                             &elem_restriction_x_hex);
100   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);
101 
102   CeedInt strides_q_data_hex[3] = {1, q_hex * q_hex, q_hex * q_hex};
103   CeedElemRestrictionCreateStrided(ceed, num_elem_hex, q_hex * q_hex, 1, num_qpts_hex, strides_q_data_hex, &elem_restriction_q_data_hex);
104 
105   // -- Bases
106   CeedBasisCreateTensorH1Lagrange(ceed, dim, dim, p_hex, q_hex, CEED_GAUSS, &basis_x_hex);
107   CeedBasisCreateTensorH1Lagrange(ceed, dim, 1, p_hex, q_hex, CEED_GAUSS, &basis_u_hex);
108 
109   // -- Operators
110   CeedOperatorCreate(ceed, qf_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_mass_hex);
111   CeedOperatorSetField(op_mass_hex, "u", elem_restriction_u_hex, basis_u_hex, CEED_VECTOR_ACTIVE);
112   CeedOperatorSetField(op_mass_hex, "qdata", elem_restriction_q_data_hex, CEED_BASIS_NONE, q_data_hex);
113   CeedOperatorSetField(op_mass_hex, "v", elem_restriction_u_hex, basis_u_hex, CEED_VECTOR_ACTIVE);
114 
115   // Set up Composite Operator
116   // -- Create
117   CeedCompositeOperatorCreate(ceed, &op_mass);
118   // -- Add SubOperators
119   CeedCompositeOperatorAddSub(op_mass, op_mass_tet);
120   CeedCompositeOperatorAddSub(op_mass, op_mass_hex);
121 
122   // Estimate FLOPs
123   CeedQFunctionSetUserFlopsEstimate(qf_mass, 1);
124   CeedOperatorGetFlopsEstimate(op_mass, &flop_estimate);
125 
126   // Check output
127   if (flop_estimate != 3042) printf("Incorrect FLOP estimate computed, %ld != 3042\n", flop_estimate);
128 
129   // Cleanup
130   CeedVectorDestroy(&q_data_tet);
131   CeedVectorDestroy(&q_data_hex);
132   CeedElemRestrictionDestroy(&elem_restriction_u_tet);
133   CeedElemRestrictionDestroy(&elem_restriction_x_tet);
134   CeedElemRestrictionDestroy(&elem_restriction_q_data_tet);
135   CeedElemRestrictionDestroy(&elem_restriction_u_hex);
136   CeedElemRestrictionDestroy(&elem_restriction_x_hex);
137   CeedElemRestrictionDestroy(&elem_restriction_q_data_hex);
138   CeedBasisDestroy(&basis_u_tet);
139   CeedBasisDestroy(&basis_x_tet);
140   CeedBasisDestroy(&basis_u_hex);
141   CeedBasisDestroy(&basis_x_hex);
142   CeedQFunctionDestroy(&qf_mass);
143   CeedOperatorDestroy(&op_mass_tet);
144   CeedOperatorDestroy(&op_mass_hex);
145   CeedOperatorDestroy(&op_mass);
146   CeedDestroy(&ceed);
147   return 0;
148 }
149