1 /// @file 2 /// Test VLA macro for operator 3 /// \test VLA marco for operator 4 #include "t507-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; 13 CeedBasis basis_x, basis_u; 14 CeedQFunction qf_setup, qf_mass; 15 CeedOperator op_setup, op_mass; 16 CeedVector q_data, x, u, v; 17 CeedInt num_elem = 15, p = 5, q = 8; 18 CeedInt num_nodes_x = num_elem + 1, num_nodes_u = num_elem * (p - 1) + 1; 19 CeedInt ind_x[num_elem * 2], ind_u[num_elem * p]; 20 21 CeedInit(argv[1], &ceed); 22 23 CeedVectorCreate(ceed, num_nodes_x, &x); 24 { 25 CeedScalar x_array[num_nodes_x]; 26 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, 2 * num_nodes_u, &u); 31 CeedVectorCreate(ceed, 2 * 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] = 2 * (i * (p - 1) + j); 44 } 45 } 46 CeedElemRestrictionCreate(ceed, num_elem, p, 2, 1, 2 * 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, 2, 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 * 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", 2, CEED_EVAL_INTERP); 64 CeedQFunctionAddOutput(qf_mass, "v", 2, 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_COLLOCATED, 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_COLLOCATED, 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 { 80 CeedScalar *u_array; 81 82 CeedVectorGetArrayWrite(u, CEED_MEM_HOST, &u_array); 83 for (int i = 0; i < num_nodes_u; i++) { 84 u_array[2 * i] = 1.0; 85 u_array[2 * i + 1] = 2.0; 86 } 87 CeedVectorRestoreArray(u, &u_array); 88 } 89 90 CeedOperatorApply(op_mass, u, v, CEED_REQUEST_IMMEDIATE); 91 92 // Check output 93 { 94 const CeedScalar *v_array; 95 CeedScalar sum_1 = 0., sum_2 = 0.; 96 97 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array); 98 for (CeedInt i = 0; i < num_nodes_u; i++) { 99 sum_1 += v_array[2 * i]; 100 sum_2 += v_array[2 * i + 1]; 101 } 102 CeedVectorRestoreArrayRead(v, &v_array); 103 if (fabs(sum_1 - 1.) > 1000. * CEED_EPSILON) printf("Computed Area: %f != True Area: 1.0\n", sum_1); 104 if (fabs(sum_2 - 2.) > 1000. * CEED_EPSILON) printf("Computed Area: %f != True Area: 2.0\n", sum_2); 105 } 106 107 CeedVectorDestroy(&x); 108 CeedVectorDestroy(&u); 109 CeedVectorDestroy(&v); 110 CeedVectorDestroy(&q_data); 111 CeedElemRestrictionDestroy(&elem_restriction_u); 112 CeedElemRestrictionDestroy(&elem_restriction_x); 113 CeedElemRestrictionDestroy(&elem_restriction_q_data); 114 CeedBasisDestroy(&basis_u); 115 CeedBasisDestroy(&basis_x); 116 CeedQFunctionDestroy(&qf_setup); 117 CeedQFunctionDestroy(&qf_mass); 118 CeedOperatorDestroy(&op_setup); 119 CeedOperatorDestroy(&op_mass); 120 CeedDestroy(&ceed); 121 return 0; 122 } 123