1 /// @file 2 /// Test assembly of mass matrix operator QFunction 3 /// \test Test assembly of mass matrix operator QFunction 4 #include <ceed.h> 5 #include <stdlib.h> 6 #include <math.h> 7 #include "t510-operator.h" 8 9 int main(int argc, char **argv) { 10 Ceed ceed; 11 CeedElemRestriction elem_restr_x, elem_restr_u, 12 elem_restr_qd_i, elem_restr_lin_i; 13 CeedBasis basis_x, basis_u; 14 CeedQFunction qf_setup, qf_mass; 15 CeedOperator op_setup, op_mass; 16 CeedVector q_data, X, A, u, v; 17 const CeedScalar *a, *q; 18 CeedInt num_elem = 6, P = 3, Q = 4, dim = 2; 19 CeedInt nx = 3, ny = 2; 20 CeedInt num_dofs = (nx*2+1)*(ny*2+1), num_qpts = num_elem*Q*Q; 21 CeedInt ind_x[num_elem*P*P]; 22 CeedScalar x[dim*num_dofs]; 23 24 CeedInit(argv[1], &ceed); 25 26 // DoF Coordinates 27 for (CeedInt i=0; i<nx*2+1; i++) 28 for (CeedInt j=0; j<ny*2+1; j++) { 29 x[i+j*(nx*2+1)+0*num_dofs] = (CeedScalar) i / (2*nx); 30 x[i+j*(nx*2+1)+1*num_dofs] = (CeedScalar) j / (2*ny); 31 } 32 CeedVectorCreate(ceed, dim*num_dofs, &X); 33 CeedVectorSetArray(X, CEED_MEM_HOST, CEED_USE_POINTER, x); 34 35 // Qdata Vector 36 CeedVectorCreate(ceed, num_qpts, &q_data); 37 38 // Element Setup 39 for (CeedInt i=0; i<num_elem; i++) { 40 CeedInt col, row, offset; 41 col = i % nx; 42 row = i / nx; 43 offset = col*(P-1) + row*(nx*2+1)*(P-1); 44 for (CeedInt j=0; j<P; j++) 45 for (CeedInt k=0; k<P; k++) 46 ind_x[P*(P*i+k)+j] = offset + k*(nx*2+1) + j; 47 } 48 49 // Restrictions 50 CeedElemRestrictionCreate(ceed, num_elem, P*P, dim, num_dofs, dim*num_dofs, 51 CEED_MEM_HOST, CEED_USE_POINTER, ind_x, &elem_restr_x); 52 53 CeedElemRestrictionCreate(ceed, num_elem, P*P, 1, 1, num_dofs, CEED_MEM_HOST, 54 CEED_USE_POINTER, ind_x, &elem_restr_u); 55 CeedInt strides_qd[3] = {1, Q*Q, Q*Q}; 56 CeedElemRestrictionCreateStrided(ceed, num_elem, Q*Q, 1, num_qpts, strides_qd, 57 &elem_restr_qd_i); 58 59 // Bases 60 CeedBasisCreateTensorH1Lagrange(ceed, dim, dim, P, Q, CEED_GAUSS, &basis_x); 61 CeedBasisCreateTensorH1Lagrange(ceed, dim, 1, P, Q, CEED_GAUSS, &basis_u); 62 63 // QFunctions 64 CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup); 65 CeedQFunctionAddInput(qf_setup, "weight", 1, CEED_EVAL_WEIGHT); 66 CeedQFunctionAddInput(qf_setup, "dx", dim*dim, CEED_EVAL_GRAD); 67 CeedQFunctionAddOutput(qf_setup, "rho", 1, CEED_EVAL_NONE); 68 69 CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass); 70 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE); 71 CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP); 72 CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP); 73 74 // Operators 75 CeedOperatorCreate(ceed, qf_setup, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, 76 &op_setup); 77 CeedOperatorSetField(op_setup, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, 78 CEED_VECTOR_NONE); 79 CeedOperatorSetField(op_setup, "dx", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 80 CeedOperatorSetField(op_setup, "rho", elem_restr_qd_i, CEED_BASIS_COLLOCATED, 81 CEED_VECTOR_ACTIVE); 82 83 CeedOperatorCreate(ceed, qf_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, 84 &op_mass); 85 CeedOperatorSetField(op_mass, "rho", elem_restr_qd_i, CEED_BASIS_COLLOCATED, 86 q_data); 87 CeedOperatorSetField(op_mass, "u", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 88 CeedOperatorSetField(op_mass, "v", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 89 90 // Apply Setup Operator 91 CeedOperatorApply(op_setup, X, q_data, CEED_REQUEST_IMMEDIATE); 92 93 // Assemble QFunction 94 CeedOperatorSetQFunctionAssemblyReuse(op_mass, true); 95 CeedOperatorSetQFunctionAssemblyDataUpdateNeeded(op_mass, true); 96 CeedOperatorLinearAssembleQFunction(op_mass, &A, &elem_restr_lin_i, 97 CEED_REQUEST_IMMEDIATE); 98 // Second call will be no-op since SetQFunctionUpdated was not called 99 CeedOperatorSetQFunctionAssemblyDataUpdateNeeded(op_mass, false); 100 CeedOperatorLinearAssembleQFunction(op_mass, &A, &elem_restr_lin_i, 101 CEED_REQUEST_IMMEDIATE); 102 103 // Check output 104 CeedVectorGetArrayRead(A, CEED_MEM_HOST, &a); 105 CeedVectorGetArrayRead(q_data, CEED_MEM_HOST, &q); 106 for (CeedInt i=0; i<num_qpts; i++) 107 if (fabs(q[i] - a[i]) > 1e-9) 108 // LCOV_EXCL_START 109 printf("Error: A[%" CeedInt_FMT "] = %f != %f\n", i, a[i], q[i]); 110 // LCOV_EXCL_STOP 111 CeedVectorRestoreArrayRead(A, &a); 112 CeedVectorRestoreArrayRead(q_data, &q); 113 114 // Apply original Mass Operator 115 CeedVectorCreate(ceed, num_dofs, &u); 116 CeedVectorSetValue(u, 1.0); 117 CeedVectorCreate(ceed, num_dofs, &v); 118 CeedVectorSetValue(v, 0.0); 119 CeedOperatorApply(op_mass, u, v, CEED_REQUEST_IMMEDIATE); 120 121 // Check output 122 CeedScalar area = 0.0; 123 const CeedScalar *vv; 124 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &vv); 125 for (CeedInt i=0; i<num_dofs; i++) 126 area += vv[i]; 127 CeedVectorRestoreArrayRead(v, &vv); 128 if (fabs(area - 1.0) > 100.*CEED_EPSILON) 129 // LCOV_EXCL_START 130 printf("Error: True operator computed area = %f != 1.0\n", area); 131 // LCOV_EXCL_STOP 132 133 // Switch to new q_data 134 CeedVectorGetArrayRead(A, CEED_MEM_HOST, &a); 135 CeedVectorSetArray(q_data, CEED_MEM_HOST, CEED_COPY_VALUES, (CeedScalar *)a); 136 CeedVectorRestoreArrayRead(A, &a); 137 138 // Apply new Mass Operator 139 CeedOperatorApply(op_mass, u, v, CEED_REQUEST_IMMEDIATE); 140 141 // Check output 142 area = 0.0; 143 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &vv); 144 for (CeedInt i=0; i<num_dofs; i++) 145 area += vv[i]; 146 CeedVectorRestoreArrayRead(v, &vv); 147 if (fabs(area - 1.0) > 1000.*CEED_EPSILON) 148 // LCOV_EXCL_START 149 printf("Error: Linearized operator computed area = %f != 1.0\n", area); 150 // LCOV_EXCL_STOP 151 152 // Cleanup 153 CeedQFunctionDestroy(&qf_setup); 154 CeedQFunctionDestroy(&qf_mass); 155 CeedOperatorDestroy(&op_setup); 156 CeedOperatorDestroy(&op_mass); 157 CeedElemRestrictionDestroy(&elem_restr_u); 158 CeedElemRestrictionDestroy(&elem_restr_x); 159 CeedElemRestrictionDestroy(&elem_restr_qd_i); 160 CeedElemRestrictionDestroy(&elem_restr_lin_i); 161 CeedBasisDestroy(&basis_u); 162 CeedBasisDestroy(&basis_x); 163 CeedVectorDestroy(&X); 164 CeedVectorDestroy(&A); 165 CeedVectorDestroy(&q_data); 166 CeedVectorDestroy(&u); 167 CeedVectorDestroy(&v); 168 CeedDestroy(&ceed); 169 return 0; 170 } 171