1 /// @file 2 /// Test CeedOperatorApplyAdd 3 /// \test Test CeedOperatorApplyAdd 4 #include <ceed.h> 5 #include <math.h> 6 #include <stdio.h> 7 #include <stdlib.h> 8 9 #include "t500-operator.h" 10 11 int main(int argc, char **argv) { 12 Ceed ceed; 13 CeedElemRestriction elem_restriction_x, elem_restriction_u, elem_restriction_q_data; 14 CeedBasis basis_x, basis_u; 15 CeedQFunction qf_setup, qf_mass; 16 CeedOperator op_setup, op_mass; 17 CeedVector q_data, x, u, v; 18 CeedInt num_elem = 15, p = 5, q = 8; 19 CeedInt num_nodes_x = num_elem + 1, num_nodes_u = num_elem * (p - 1) + 1; 20 CeedInt ind_x[num_elem * 2], ind_u[num_elem * p]; 21 22 CeedInit(argv[1], &ceed); 23 24 CeedVectorCreate(ceed, num_nodes_x, &x); 25 { 26 CeedScalar x_array[num_nodes_x]; 27 for (CeedInt i = 0; i < num_nodes_x; i++) x_array[i] = (CeedScalar)i / (num_nodes_x - 1); 28 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_COPY_VALUES, x_array); 29 } 30 CeedVectorCreate(ceed, num_nodes_u, &u); 31 CeedVectorCreate(ceed, num_nodes_u, &v); 32 CeedVectorCreate(ceed, num_elem * q, &q_data); 33 34 // Restrictions 35 for (CeedInt i = 0; i < num_elem; i++) { 36 ind_x[2 * i + 0] = i; 37 ind_x[2 * i + 1] = i + 1; 38 } 39 CeedElemRestrictionCreate(ceed, num_elem, 2, 1, 1, num_nodes_x, CEED_MEM_HOST, CEED_USE_POINTER, ind_x, &elem_restriction_x); 40 41 for (CeedInt i = 0; i < num_elem; i++) { 42 for (CeedInt j = 0; j < p; j++) { 43 ind_u[p * i + j] = i * (p - 1) + j; 44 } 45 } 46 CeedElemRestrictionCreate(ceed, num_elem, p, 1, 1, num_nodes_u, CEED_MEM_HOST, CEED_USE_POINTER, ind_u, &elem_restriction_u); 47 48 CeedInt strides_q_data[3] = {1, q, q}; 49 CeedElemRestrictionCreateStrided(ceed, num_elem, q, 1, q * num_elem, strides_q_data, &elem_restriction_q_data); 50 51 // Bases 52 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, 2, q, CEED_GAUSS, &basis_x); 53 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, p, q, CEED_GAUSS, &basis_u); 54 55 // QFunctions 56 CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup); 57 CeedQFunctionAddInput(qf_setup, "weight", 1, CEED_EVAL_WEIGHT); 58 CeedQFunctionAddInput(qf_setup, "dx", 1, CEED_EVAL_GRAD); 59 CeedQFunctionAddOutput(qf_setup, "rho", 1, CEED_EVAL_NONE); 60 61 CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass); 62 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE); 63 CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP); 64 CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP); 65 66 // Operators 67 CeedOperatorCreate(ceed, qf_setup, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_setup); 68 CeedOperatorSetField(op_setup, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, CEED_VECTOR_NONE); 69 CeedOperatorSetField(op_setup, "dx", elem_restriction_x, basis_x, CEED_VECTOR_ACTIVE); 70 CeedOperatorSetField(op_setup, "rho", elem_restriction_q_data, CEED_BASIS_NONE, CEED_VECTOR_ACTIVE); 71 72 CeedOperatorCreate(ceed, qf_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_mass); 73 CeedOperatorSetField(op_mass, "rho", elem_restriction_q_data, CEED_BASIS_NONE, q_data); 74 CeedOperatorSetField(op_mass, "u", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 75 CeedOperatorSetField(op_mass, "v", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 76 77 CeedOperatorApply(op_setup, x, q_data, CEED_REQUEST_IMMEDIATE); 78 79 // Apply with V = 0 80 CeedVectorSetValue(u, 1.0); 81 CeedVectorSetValue(v, 0.0); 82 CeedOperatorApplyAdd(op_mass, u, v, CEED_REQUEST_IMMEDIATE); 83 84 // Check output 85 { 86 const CeedScalar *v_array; 87 CeedScalar sum = 0.; 88 89 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array); 90 for (CeedInt i = 0; i < num_nodes_u; i++) sum += v_array[i]; 91 CeedVectorRestoreArrayRead(v, &v_array); 92 if (fabs(sum - 1.) > 1000. * CEED_EPSILON) printf("Computed Area: %f != True Area: 1.0\n", sum); 93 } 94 95 // Apply with V = 1 96 CeedVectorSetValue(v, 1.0); 97 CeedOperatorApplyAdd(op_mass, u, v, CEED_REQUEST_IMMEDIATE); 98 99 // Check output 100 { 101 const CeedScalar *v_array; 102 CeedScalar sum = -num_nodes_u; 103 104 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array); 105 for (CeedInt i = 0; i < num_nodes_u; i++) sum += v_array[i]; 106 CeedVectorRestoreArrayRead(v, &v_array); 107 if (fabs(sum - 1.) > 1000. * CEED_EPSILON) printf("Computed Area: %f != True Area: 1.0\n", sum); 108 } 109 110 CeedVectorDestroy(&x); 111 CeedVectorDestroy(&u); 112 CeedVectorDestroy(&v); 113 CeedVectorDestroy(&q_data); 114 CeedElemRestrictionDestroy(&elem_restriction_u); 115 CeedElemRestrictionDestroy(&elem_restriction_x); 116 CeedElemRestrictionDestroy(&elem_restriction_q_data); 117 CeedBasisDestroy(&basis_u); 118 CeedBasisDestroy(&basis_x); 119 CeedQFunctionDestroy(&qf_setup); 120 CeedQFunctionDestroy(&qf_mass); 121 CeedOperatorDestroy(&op_setup); 122 CeedOperatorDestroy(&op_mass); 123 CeedDestroy(&ceed); 124 return 0; 125 } 126