1 /// @file 2 /// Test VLA macro for operator 3 /// \test VLA macro for operator 4 #include "t507-operator.h" 5 6 #include <ceed.h> 7 #include <math.h> 8 #include <stdio.h> 9 #include <stdlib.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 28 for (CeedInt i = 0; i < num_nodes_x; i++) x_array[i] = (CeedScalar)i / (num_nodes_x - 1); 29 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_COPY_VALUES, x_array); 30 } 31 CeedVectorCreate(ceed, 2 * num_nodes_u, &u); 32 CeedVectorCreate(ceed, 2 * num_nodes_u, &v); 33 CeedVectorCreate(ceed, num_elem * q, &q_data); 34 35 // Restrictions 36 for (CeedInt i = 0; i < num_elem; i++) { 37 ind_x[2 * i + 0] = i; 38 ind_x[2 * i + 1] = i + 1; 39 } 40 CeedElemRestrictionCreate(ceed, num_elem, 2, 1, 1, num_nodes_x, CEED_MEM_HOST, CEED_USE_POINTER, ind_x, &elem_restriction_x); 41 42 for (CeedInt i = 0; i < num_elem; i++) { 43 for (CeedInt j = 0; j < p; j++) { 44 ind_u[p * i + j] = 2 * (i * (p - 1) + j); 45 } 46 } 47 CeedElemRestrictionCreate(ceed, num_elem, p, 2, 1, 2 * num_nodes_u, CEED_MEM_HOST, CEED_USE_POINTER, ind_u, &elem_restriction_u); 48 49 CeedInt strides_q_data[3] = {1, q, q}; 50 CeedElemRestrictionCreateStrided(ceed, num_elem, q, 1, q * num_elem, strides_q_data, &elem_restriction_q_data); 51 52 // Bases 53 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, 2, q, CEED_GAUSS, &basis_x); 54 CeedBasisCreateTensorH1Lagrange(ceed, 1, 2, p, q, CEED_GAUSS, &basis_u); 55 56 // QFunctions 57 CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup); 58 CeedQFunctionAddInput(qf_setup, "weight", 1, CEED_EVAL_WEIGHT); 59 CeedQFunctionAddInput(qf_setup, "dx", 1 * 1, CEED_EVAL_GRAD); 60 CeedQFunctionAddOutput(qf_setup, "rho", 1, CEED_EVAL_NONE); 61 62 CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass); 63 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE); 64 CeedQFunctionAddInput(qf_mass, "u", 2, CEED_EVAL_INTERP); 65 CeedQFunctionAddOutput(qf_mass, "v", 2, CEED_EVAL_INTERP); 66 67 // Operators 68 CeedOperatorCreate(ceed, qf_setup, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_setup); 69 CeedOperatorSetField(op_setup, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, CEED_VECTOR_NONE); 70 CeedOperatorSetField(op_setup, "dx", elem_restriction_x, basis_x, CEED_VECTOR_ACTIVE); 71 CeedOperatorSetField(op_setup, "rho", elem_restriction_q_data, CEED_BASIS_NONE, CEED_VECTOR_ACTIVE); 72 73 CeedOperatorCreate(ceed, qf_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_mass); 74 CeedOperatorSetField(op_mass, "rho", elem_restriction_q_data, CEED_BASIS_NONE, q_data); 75 CeedOperatorSetField(op_mass, "u", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 76 CeedOperatorSetField(op_mass, "v", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 77 78 CeedOperatorApply(op_setup, x, q_data, CEED_REQUEST_IMMEDIATE); 79 80 { 81 CeedScalar *u_array; 82 83 CeedVectorGetArrayWrite(u, CEED_MEM_HOST, &u_array); 84 for (int i = 0; i < num_nodes_u; i++) { 85 u_array[2 * i] = 1.0; 86 u_array[2 * i + 1] = 2.0; 87 } 88 CeedVectorRestoreArray(u, &u_array); 89 } 90 91 CeedOperatorApply(op_mass, u, v, CEED_REQUEST_IMMEDIATE); 92 93 // Check output 94 { 95 const CeedScalar *v_array; 96 CeedScalar sum_1 = 0., sum_2 = 0.; 97 98 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array); 99 for (CeedInt i = 0; i < num_nodes_u; i++) { 100 sum_1 += v_array[2 * i]; 101 sum_2 += v_array[2 * i + 1]; 102 } 103 CeedVectorRestoreArrayRead(v, &v_array); 104 if (fabs(sum_1 - 1.) > 1000. * CEED_EPSILON) printf("Computed Area: %f != True Area: 1.0\n", sum_1); 105 if (fabs(sum_2 - 2.) > 1000. * CEED_EPSILON) printf("Computed Area: %f != True Area: 2.0\n", sum_2); 106 } 107 108 CeedVectorDestroy(&x); 109 CeedVectorDestroy(&u); 110 CeedVectorDestroy(&v); 111 CeedVectorDestroy(&q_data); 112 CeedElemRestrictionDestroy(&elem_restriction_u); 113 CeedElemRestrictionDestroy(&elem_restriction_x); 114 CeedElemRestrictionDestroy(&elem_restriction_q_data); 115 CeedBasisDestroy(&basis_u); 116 CeedBasisDestroy(&basis_x); 117 CeedQFunctionDestroy(&qf_setup); 118 CeedQFunctionDestroy(&qf_mass); 119 CeedOperatorDestroy(&op_setup); 120 CeedOperatorDestroy(&op_mass); 121 CeedDestroy(&ceed); 122 return 0; 123 } 124