1 /// @file 2 /// Test assembly of mass and Poisson operator QFunction 3 /// \test Test assembly of mass and Poisson operator QFunction 4 #include "t532-operator.h" 5 6 #include <ceed.h> 7 #include <math.h> 8 #include <stdlib.h> 9 10 int main(int argc, char **argv) { 11 Ceed ceed; 12 CeedElemRestriction elem_restriction_x, elem_restriction_u, elem_restriction_q_data_mass, elem_restriction_q_data_diff, elem_restriction_assembled; 13 CeedBasis basis_x, basis_u; 14 CeedQFunction qf_setup_mass, qf_setup_diff, qf_apply, qf_apply_assembled; 15 CeedOperator op_setup_mass, op_setup_diff, op_apply, op_apply_assembled; 16 CeedVector q_data_mass, q_data_diff, x, assembled, u, v; 17 CeedInt num_elem = 6, p = 3, q = 4, dim = 2; 18 CeedInt nx = 3, ny = 2; 19 CeedInt num_dofs = (nx * 2 + 1) * (ny * 2 + 1), num_qpts = num_elem * q * q; 20 CeedInt ind_x[num_elem * p * p]; 21 22 CeedInit(argv[1], &ceed); 23 24 // Vectors 25 CeedVectorCreate(ceed, dim * num_dofs, &x); 26 { 27 CeedScalar x_array[dim * num_dofs]; 28 29 for (CeedInt i = 0; i < nx * 2 + 1; i++) { 30 for (CeedInt j = 0; j < ny * 2 + 1; j++) { 31 x_array[i + j * (nx * 2 + 1) + 0 * num_dofs] = (CeedScalar)i / (2 * nx); 32 x_array[i + j * (nx * 2 + 1) + 1 * num_dofs] = (CeedScalar)j / (2 * ny); 33 } 34 } 35 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_COPY_VALUES, x_array); 36 } 37 CeedVectorCreate(ceed, num_dofs, &u); 38 CeedVectorCreate(ceed, num_dofs, &v); 39 CeedVectorCreate(ceed, num_qpts, &q_data_mass); 40 CeedVectorCreate(ceed, num_qpts * dim * (dim + 1) / 2, &q_data_diff); 41 42 // Restrictions 43 for (CeedInt i = 0; i < num_elem; i++) { 44 CeedInt col, row, offset; 45 col = i % nx; 46 row = i / nx; 47 offset = col * (p - 1) + row * (nx * 2 + 1) * (p - 1); 48 for (CeedInt j = 0; j < p; j++) { 49 for (CeedInt k = 0; k < p; k++) ind_x[p * (p * i + k) + j] = offset + k * (nx * 2 + 1) + j; 50 } 51 } 52 CeedElemRestrictionCreate(ceed, num_elem, p * p, dim, num_dofs, dim * num_dofs, CEED_MEM_HOST, CEED_USE_POINTER, ind_x, &elem_restriction_x); 53 CeedElemRestrictionCreate(ceed, num_elem, p * p, 1, 1, num_dofs, CEED_MEM_HOST, CEED_USE_POINTER, ind_x, &elem_restriction_u); 54 55 CeedInt strides_q_data_mass[3] = {1, q * q, q * q}; 56 CeedElemRestrictionCreateStrided(ceed, num_elem, q * q, 1, num_qpts, strides_q_data_mass, &elem_restriction_q_data_mass); 57 58 CeedInt strides_q_data_diff[3] = {1, q * q, q * q * dim * (dim + 1) / 2}; 59 CeedElemRestrictionCreateStrided(ceed, num_elem, q * q, dim * (dim + 1) / 2, dim * (dim + 1) / 2 * num_qpts, strides_q_data_diff, 60 &elem_restriction_q_data_diff); 61 62 // Bases 63 CeedBasisCreateTensorH1Lagrange(ceed, dim, dim, p, q, CEED_GAUSS, &basis_x); 64 CeedBasisCreateTensorH1Lagrange(ceed, dim, 1, p, q, CEED_GAUSS, &basis_u); 65 66 // QFunction - setup mass 67 CeedQFunctionCreateInterior(ceed, 1, setup_mass, setup_mass_loc, &qf_setup_mass); 68 CeedQFunctionAddInput(qf_setup_mass, "dx", dim * dim, CEED_EVAL_GRAD); 69 CeedQFunctionAddInput(qf_setup_mass, "weight", 1, CEED_EVAL_WEIGHT); 70 CeedQFunctionAddOutput(qf_setup_mass, "q data", 1, CEED_EVAL_NONE); 71 72 // Operator - setup mass 73 CeedOperatorCreate(ceed, qf_setup_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_setup_mass); 74 CeedOperatorSetField(op_setup_mass, "dx", elem_restriction_x, basis_x, CEED_VECTOR_ACTIVE); 75 CeedOperatorSetField(op_setup_mass, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, CEED_VECTOR_NONE); 76 CeedOperatorSetField(op_setup_mass, "q data", elem_restriction_q_data_mass, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE); 77 78 // QFunction - setup diff 79 CeedQFunctionCreateInterior(ceed, 1, setup_diff, setup_diff_loc, &qf_setup_diff); 80 CeedQFunctionAddInput(qf_setup_diff, "dx", dim * dim, CEED_EVAL_GRAD); 81 CeedQFunctionAddInput(qf_setup_diff, "weight", 1, CEED_EVAL_WEIGHT); 82 CeedQFunctionAddOutput(qf_setup_diff, "q data", dim * (dim + 1) / 2, CEED_EVAL_NONE); 83 84 // Operator - setup diff 85 CeedOperatorCreate(ceed, qf_setup_diff, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_setup_diff); 86 CeedOperatorSetField(op_setup_diff, "dx", elem_restriction_x, basis_x, CEED_VECTOR_ACTIVE); 87 CeedOperatorSetField(op_setup_diff, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, CEED_VECTOR_NONE); 88 CeedOperatorSetField(op_setup_diff, "q data", elem_restriction_q_data_diff, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE); 89 90 // Apply Setup Operators 91 CeedOperatorApply(op_setup_mass, x, q_data_mass, CEED_REQUEST_IMMEDIATE); 92 CeedOperatorApply(op_setup_diff, x, q_data_diff, CEED_REQUEST_IMMEDIATE); 93 94 // QFunction - apply 95 CeedQFunctionCreateInterior(ceed, 1, apply, apply_loc, &qf_apply); 96 CeedQFunctionAddInput(qf_apply, "du", dim, CEED_EVAL_GRAD); 97 CeedQFunctionAddInput(qf_apply, "mass q data", 1, CEED_EVAL_NONE); 98 CeedQFunctionAddInput(qf_apply, "diff q data", dim * (dim + 1) / 2, CEED_EVAL_NONE); 99 CeedQFunctionAddInput(qf_apply, "u", 1, CEED_EVAL_INTERP); 100 CeedQFunctionAddOutput(qf_apply, "v", 1, CEED_EVAL_INTERP); 101 CeedQFunctionAddOutput(qf_apply, "dv", dim, CEED_EVAL_GRAD); 102 103 // Operator - apply 104 CeedOperatorCreate(ceed, qf_apply, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_apply); 105 CeedOperatorSetField(op_apply, "du", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 106 CeedOperatorSetField(op_apply, "mass q data", elem_restriction_q_data_mass, CEED_BASIS_COLLOCATED, q_data_mass); 107 CeedOperatorSetField(op_apply, "diff q data", elem_restriction_q_data_diff, CEED_BASIS_COLLOCATED, q_data_diff); 108 CeedOperatorSetField(op_apply, "u", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 109 CeedOperatorSetField(op_apply, "v", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 110 CeedOperatorSetField(op_apply, "dv", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 111 112 // Apply original operator 113 CeedVectorSetValue(u, 1.0); 114 CeedOperatorApply(op_apply, u, v, CEED_REQUEST_IMMEDIATE); 115 116 // Check output 117 { 118 const CeedScalar *v_array; 119 CeedScalar area = 0.0; 120 121 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array); 122 for (CeedInt i = 0; i < num_dofs; i++) area += v_array[i]; 123 CeedVectorRestoreArrayRead(v, &v_array); 124 if (fabs(area - 1.0) > 100. * CEED_EPSILON) printf("Error: True operator computed area = %f != 1.0\n", area); 125 } 126 127 // Assemble QFunction 128 CeedOperatorSetQFunctionAssemblyReuse(op_apply, true); 129 CeedOperatorLinearAssembleQFunction(op_apply, &assembled, &elem_restriction_assembled, CEED_REQUEST_IMMEDIATE); 130 // Second call will be no-op since SetQFunctionUpdated was not called 131 CeedOperatorSetQFunctionAssemblyDataUpdateNeeded(op_apply, false); 132 CeedOperatorLinearAssembleQFunction(op_apply, &assembled, &elem_restriction_assembled, CEED_REQUEST_IMMEDIATE); 133 134 // QFunction - apply assembled 135 CeedQFunctionCreateInterior(ceed, 1, apply_lin, apply_lin_loc, &qf_apply_assembled); 136 CeedQFunctionAddInput(qf_apply_assembled, "du", dim, CEED_EVAL_GRAD); 137 CeedQFunctionAddInput(qf_apply_assembled, "q data", (dim + 1) * (dim + 1), CEED_EVAL_NONE); 138 CeedQFunctionAddInput(qf_apply_assembled, "u", 1, CEED_EVAL_INTERP); 139 CeedQFunctionAddOutput(qf_apply_assembled, "v", 1, CEED_EVAL_INTERP); 140 CeedQFunctionAddOutput(qf_apply_assembled, "dv", dim, CEED_EVAL_GRAD); 141 142 // Operator - apply assembled 143 CeedOperatorCreate(ceed, qf_apply_assembled, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_apply_assembled); 144 CeedOperatorSetField(op_apply_assembled, "du", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 145 CeedOperatorSetField(op_apply_assembled, "q data", elem_restriction_assembled, CEED_BASIS_COLLOCATED, assembled); 146 CeedOperatorSetField(op_apply_assembled, "u", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 147 CeedOperatorSetField(op_apply_assembled, "v", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 148 CeedOperatorSetField(op_apply_assembled, "dv", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 149 150 // Apply assembled QFunction operator 151 CeedVectorSetValue(v, 0.0); 152 CeedOperatorApply(op_apply_assembled, u, v, CEED_REQUEST_IMMEDIATE); 153 154 // Check output 155 { 156 const CeedScalar *v_array; 157 CeedScalar area = 0.0; 158 159 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array); 160 for (CeedInt i = 0; i < num_dofs; i++) area += v_array[i]; 161 CeedVectorRestoreArrayRead(v, &v_array); 162 if (fabs(area - 1.0) > 100. * CEED_EPSILON) printf("Error: Assembled operator computed area = %f != 1.0\n", area); 163 } 164 165 // Cleanup 166 CeedVectorDestroy(&x); 167 CeedVectorDestroy(&assembled); 168 CeedVectorDestroy(&q_data_mass); 169 CeedVectorDestroy(&q_data_diff); 170 CeedVectorDestroy(&u); 171 CeedVectorDestroy(&v); 172 CeedElemRestrictionDestroy(&elem_restriction_u); 173 CeedElemRestrictionDestroy(&elem_restriction_x); 174 CeedElemRestrictionDestroy(&elem_restriction_q_data_mass); 175 CeedElemRestrictionDestroy(&elem_restriction_q_data_diff); 176 CeedElemRestrictionDestroy(&elem_restriction_assembled); 177 CeedBasisDestroy(&basis_u); 178 CeedBasisDestroy(&basis_x); 179 CeedQFunctionDestroy(&qf_setup_mass); 180 CeedQFunctionDestroy(&qf_setup_diff); 181 CeedQFunctionDestroy(&qf_apply); 182 CeedQFunctionDestroy(&qf_apply_assembled); 183 CeedOperatorDestroy(&op_setup_mass); 184 CeedOperatorDestroy(&op_setup_diff); 185 CeedOperatorDestroy(&op_apply); 186 CeedOperatorDestroy(&op_apply_assembled); 187 CeedDestroy(&ceed); 188 return 0; 189 } 190