xref: /libCEED/tests/t520-operator.c (revision dc7d240c1c3ecbc40e893ea38e37c8e19d48593c)
1 /// @file
2 /// Test creation creation, action, and destruction for mass matrix operator
3 /// \test Test creation creation, action, and destruction for mass matrix operator
4 #include <ceed.h>
5 #include <stdlib.h>
6 #include <math.h>
7 #include "t320-basis.h"
8 #include "t510-operator.h"
9 
10 /* The mesh comprises of two rows of 3 quadralaterals followed by one row
11      of 6 triangles:
12    _ _ _
13   |_|_|_|
14   |_|_|_|
15   |/|/|/|
16 
17 */
18 
19 int main(int argc, char **argv) {
20   Ceed ceed;
21   CeedElemRestriction ErestrictxTet, ErestrictuTet,
22                       ErestrictxiTet, ErestrictuiTet,
23                       ErestrictxHex, ErestrictuHex,
24                       ErestrictxiHex, ErestrictuiHex;
25   CeedBasis bxTet, buTet,
26             bxHex, buHex;
27   CeedQFunction qf_setupTet, qf_massTet,
28                 qf_setupHex, qf_massHex;
29   CeedOperator op_setupTet, op_massTet,
30                op_setupHex, op_massHex,
31                op_setup, op_mass;
32   CeedVector qdataTet, qdataHex, X, U, V;
33   const CeedScalar *hv;
34   CeedInt nelemTet = 6, PTet = 6, QTet = 4,
35           nelemHex = 6, PHex = 3, QHex = 4, dim = 2;
36   CeedInt nx = 3, ny = 3,
37           nxTet = 3, nyTet = 1, nxHex = 3;
38   CeedInt row, col, offset;
39   CeedInt ndofs = (nx*2+1)*(ny*2+1),
40           nqptsTet = nelemTet*QTet,
41           nqptsHex = nelemHex*QHex*QHex;
42   CeedInt indxTet[nelemTet*PTet],
43           indxHex[nelemHex*PHex*PHex];
44   CeedScalar x[dim*ndofs];
45   CeedScalar qref[dim*QTet], qweight[QTet];
46   CeedScalar interp[PTet*QTet], grad[dim*PTet*QTet];
47 
48   CeedInit(argv[1], &ceed);
49 
50   // DoF Coordinates
51   for (CeedInt i=0; i<ny*2+1; i++)
52     for (CeedInt j=0; j<nx*2+1; j++) {
53       x[i+j*(ny*2+1)+0*ndofs] = (CeedScalar) i / (2*ny);
54       x[i+j*(ny*2+1)+1*ndofs] = (CeedScalar) j / (2*nx);
55     }
56   CeedVectorCreate(ceed, dim*ndofs, &X);
57   CeedVectorSetArray(X, CEED_MEM_HOST, CEED_USE_POINTER, x);
58 
59   // Qdata Vectors
60   CeedVectorCreate(ceed, nqptsTet, &qdataTet);
61   CeedVectorCreate(ceed, nqptsHex, &qdataHex);
62 
63   // Set up Tet Elements
64   for (CeedInt i=0; i<nelemTet/2; i++) {
65     col = i % nxTet;
66     row = i / nxTet;
67     offset = col*2 + row*(nxTet*2+1)*2;
68 
69     indxTet[i*2*PTet +  0] =  2 + offset;
70     indxTet[i*2*PTet +  1] =  9 + offset;
71     indxTet[i*2*PTet +  2] = 16 + offset;
72     indxTet[i*2*PTet +  3] =  1 + offset;
73     indxTet[i*2*PTet +  4] =  8 + offset;
74     indxTet[i*2*PTet +  5] =  0 + offset;
75 
76     indxTet[i*2*PTet +  6] = 14 + offset;
77     indxTet[i*2*PTet +  7] =  7 + offset;
78     indxTet[i*2*PTet +  8] =  0 + offset;
79     indxTet[i*2*PTet +  9] = 15 + offset;
80     indxTet[i*2*PTet + 10] =  8 + offset;
81     indxTet[i*2*PTet + 11] = 16 + offset;
82   }
83 
84   // -- Restrictions
85   CeedElemRestrictionCreate(ceed, nelemTet, PTet, ndofs, dim, CEED_MEM_HOST,
86                             CEED_USE_POINTER, indxTet, &ErestrictxTet);
87   CeedElemRestrictionCreateIdentity(ceed, nelemTet, PTet, nelemTet*PTet, dim,
88                                     &ErestrictxiTet);
89 
90   CeedElemRestrictionCreate(ceed, nelemTet, PTet, ndofs, 1, CEED_MEM_HOST,
91                             CEED_USE_POINTER, indxTet, &ErestrictuTet);
92   CeedElemRestrictionCreateIdentity(ceed, nelemTet, QTet, nqptsTet, 1,
93                                     &ErestrictuiTet);
94 
95   // -- Bases
96   buildmats(qref, qweight, interp, grad);
97   CeedBasisCreateH1(ceed, CEED_TRIANGLE, dim, PTet, QTet, interp, grad, qref,
98                     qweight, &bxTet);
99 
100   buildmats(qref, qweight, interp, grad);
101   CeedBasisCreateH1(ceed, CEED_TRIANGLE, 1, PTet, QTet, interp, grad, qref,
102                     qweight, &buTet);
103 
104   // -- QFunctions
105   CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setupTet);
106   CeedQFunctionAddInput(qf_setupTet, "_weight", 1, CEED_EVAL_WEIGHT);
107   CeedQFunctionAddInput(qf_setupTet, "dx", dim*dim, CEED_EVAL_GRAD);
108   CeedQFunctionAddOutput(qf_setupTet, "rho", 1, CEED_EVAL_NONE);
109 
110   CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_massTet);
111   CeedQFunctionAddInput(qf_massTet, "rho", 1, CEED_EVAL_NONE);
112   CeedQFunctionAddInput(qf_massTet, "u", 1, CEED_EVAL_INTERP);
113   CeedQFunctionAddOutput(qf_massTet, "v", 1, CEED_EVAL_INTERP);
114 
115   // -- Operators
116   // ---- Setup Tet
117   CeedOperatorCreate(ceed, qf_setupTet, NULL, NULL, &op_setupTet);
118   CeedOperatorSetField(op_setupTet, "_weight", ErestrictxiTet, CEED_NOTRANSPOSE,
119                        bxTet, CEED_VECTOR_NONE);
120   CeedOperatorSetField(op_setupTet, "dx", ErestrictxTet, CEED_NOTRANSPOSE,
121                        bxTet, CEED_VECTOR_ACTIVE);
122   CeedOperatorSetField(op_setupTet, "rho", ErestrictuiTet, CEED_NOTRANSPOSE,
123                        CEED_BASIS_COLLOCATED, qdataTet);
124   // ---- Mass Tet
125   CeedOperatorCreate(ceed, qf_massTet, NULL, NULL, &op_massTet);
126   CeedOperatorSetField(op_massTet, "rho", ErestrictuiTet, CEED_NOTRANSPOSE,
127                        CEED_BASIS_COLLOCATED, qdataTet);
128   CeedOperatorSetField(op_massTet, "u", ErestrictuTet, CEED_NOTRANSPOSE,
129                        buTet, CEED_VECTOR_ACTIVE);
130   CeedOperatorSetField(op_massTet, "v", ErestrictuTet, CEED_NOTRANSPOSE,
131                        buTet, CEED_VECTOR_ACTIVE);
132 
133   // Set up Hex Elements
134   for (CeedInt i=0; i<nelemHex; i++) {
135     col = i % nxHex;
136     row = i / nxHex;
137     offset = (nxTet*2+1)*(nyTet*2)*(1+row) + col*2;
138     for (CeedInt j=0; j<PHex; j++)
139       for (CeedInt k=0; k<PHex; k++)
140         indxHex[PHex*(PHex*i+k)+j] = offset + k*(nxHex*2+1) + j;
141   }
142 
143   // -- Restrictions
144   CeedElemRestrictionCreate(ceed, nelemHex, PHex*PHex, ndofs, dim,
145                             CEED_MEM_HOST, CEED_USE_POINTER, indxHex,
146                             &ErestrictxHex);
147   CeedElemRestrictionCreateIdentity(ceed, nelemHex, PHex*PHex,
148                                     nelemHex*PHex*PHex, dim, &ErestrictxiHex);
149 
150   CeedElemRestrictionCreate(ceed, nelemHex, PHex*PHex, ndofs, 1,
151                             CEED_MEM_HOST, CEED_USE_POINTER, indxHex,
152                             &ErestrictuHex);
153   CeedElemRestrictionCreateIdentity(ceed, nelemHex, QHex*QHex, nqptsHex, 1,
154                                     &ErestrictuiHex);
155 
156   // -- Bases
157   CeedBasisCreateTensorH1Lagrange(ceed, dim, dim, PHex, QHex, CEED_GAUSS,
158                                   &bxHex);
159   CeedBasisCreateTensorH1Lagrange(ceed, dim, 1, PHex, QHex, CEED_GAUSS, &buHex);
160 
161   // -- QFunctions
162   CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setupHex);
163   CeedQFunctionAddInput(qf_setupHex, "_weight", 1, CEED_EVAL_WEIGHT);
164   CeedQFunctionAddInput(qf_setupHex, "dx", dim*dim, CEED_EVAL_GRAD);
165   CeedQFunctionAddOutput(qf_setupHex, "rho", 1, CEED_EVAL_NONE);
166 
167   CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_massHex);
168   CeedQFunctionAddInput(qf_massHex, "rho", 1, CEED_EVAL_NONE);
169   CeedQFunctionAddInput(qf_massHex, "u", 1, CEED_EVAL_INTERP);
170   CeedQFunctionAddOutput(qf_massHex, "v", 1, CEED_EVAL_INTERP);
171 
172   // -- Operators
173   CeedOperatorCreate(ceed, qf_setupHex, NULL, NULL, &op_setupHex);
174   CeedOperatorSetField(op_setupHex, "_weight", ErestrictxiHex, CEED_NOTRANSPOSE,
175                        bxHex, CEED_VECTOR_NONE);
176   CeedOperatorSetField(op_setupHex, "dx", ErestrictxHex, CEED_NOTRANSPOSE,
177                        bxHex, CEED_VECTOR_ACTIVE);
178   CeedOperatorSetField(op_setupHex, "rho", ErestrictuiHex, CEED_NOTRANSPOSE,
179                        CEED_BASIS_COLLOCATED, qdataHex);
180 
181   CeedOperatorCreate(ceed, qf_massHex, NULL, NULL, &op_massHex);
182   CeedOperatorSetField(op_massHex, "rho", ErestrictuiHex, CEED_NOTRANSPOSE,
183                        CEED_BASIS_COLLOCATED, qdataHex);
184   CeedOperatorSetField(op_massHex, "u", ErestrictuHex, CEED_NOTRANSPOSE,
185                        buHex, CEED_VECTOR_ACTIVE);
186   CeedOperatorSetField(op_massHex, "v", ErestrictuHex, CEED_NOTRANSPOSE,
187                        buHex, CEED_VECTOR_ACTIVE);
188 
189   // Set up Composite Operators
190   // -- Create
191   CeedCompositeOperatorCreate(ceed, &op_setup);
192   // -- Add SubOperators
193   CeedCompositeOperatorAddSub(op_setup, op_setupTet);
194   CeedCompositeOperatorAddSub(op_setup, op_setupHex);
195 
196   // -- Create
197   CeedCompositeOperatorCreate(ceed, &op_mass);
198   // -- Add SubOperators
199   CeedCompositeOperatorAddSub(op_mass, op_massTet);
200   CeedCompositeOperatorAddSub(op_mass, op_massHex);
201 
202   // Apply Setup Operator
203   CeedOperatorApply(op_setup, X, NULL, CEED_REQUEST_IMMEDIATE);
204 
205   // Apply Mass Operator
206   CeedVectorCreate(ceed, ndofs, &U);
207   CeedVectorSetValue(U, 0.0);
208   CeedVectorCreate(ceed, ndofs, &V);
209 
210   CeedOperatorApply(op_mass, U, V, CEED_REQUEST_IMMEDIATE);
211 
212   // Check output
213   CeedVectorGetArrayRead(V, CEED_MEM_HOST, &hv);
214   for (CeedInt i=0; i<ndofs; i++)
215     if (fabs(hv[i]) > 1e-14) printf("[%d] v %g != 0.0\n",i, hv[i]);
216   CeedVectorRestoreArrayRead(V, &hv);
217 
218   // Cleanup
219   CeedQFunctionDestroy(&qf_setupTet);
220   CeedQFunctionDestroy(&qf_massTet);
221   CeedOperatorDestroy(&op_setupTet);
222   CeedOperatorDestroy(&op_massTet);
223   CeedQFunctionDestroy(&qf_setupHex);
224   CeedQFunctionDestroy(&qf_massHex);
225   CeedOperatorDestroy(&op_setupHex);
226   CeedOperatorDestroy(&op_massHex);
227   CeedOperatorDestroy(&op_setup);
228   CeedOperatorDestroy(&op_mass);
229   CeedElemRestrictionDestroy(&ErestrictuTet);
230   CeedElemRestrictionDestroy(&ErestrictxTet);
231   CeedElemRestrictionDestroy(&ErestrictuiTet);
232   CeedElemRestrictionDestroy(&ErestrictxiTet);
233   CeedElemRestrictionDestroy(&ErestrictuHex);
234   CeedElemRestrictionDestroy(&ErestrictxHex);
235   CeedElemRestrictionDestroy(&ErestrictuiHex);
236   CeedElemRestrictionDestroy(&ErestrictxiHex);
237   CeedBasisDestroy(&buTet);
238   CeedBasisDestroy(&bxTet);
239   CeedBasisDestroy(&buHex);
240   CeedBasisDestroy(&bxHex);
241   CeedVectorDestroy(&X);
242   CeedVectorDestroy(&U);
243   CeedVectorDestroy(&V);
244   CeedVectorDestroy(&qdataTet);
245   CeedVectorDestroy(&qdataHex);
246   CeedDestroy(&ceed);
247   return 0;
248 }
249