1 /// @file 2 /// Test creation, action, and destruction for mass matrix operator with passive inputs and outputs 3 /// \test Test creation, action, and destruction for mass matrix operator with passive inputs and outputs 4 #include <ceed.h> 5 #include <math.h> 6 #include <stdlib.h> 7 8 #include "t500-operator.h" 9 10 int main(int argc, char **argv) { 11 Ceed ceed; 12 CeedElemRestriction elem_restr_x, elem_restr_u, elem_restr_qd_i; 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 const CeedScalar *hv; 18 CeedInt num_elem = 15, P = 5, Q = 8; 19 CeedInt Nx = num_elem + 1, Nu = num_elem * (P - 1) + 1; 20 CeedInt ind_x[num_elem * 2], ind_u[num_elem * P]; 21 CeedScalar x[Nx]; 22 CeedScalar sum; 23 24 CeedInit(argv[1], &ceed); 25 26 // Vectors 27 CeedVectorCreate(ceed, Nu, &U); 28 CeedVectorSetValue(U, 1.0); 29 30 CeedVectorCreate(ceed, Nu, &V); 31 32 for (CeedInt i = 0; i < Nx; i++) x[i] = (CeedScalar)i / (Nx - 1); 33 CeedVectorCreate(ceed, Nx, &X); 34 CeedVectorSetArray(X, CEED_MEM_HOST, CEED_USE_POINTER, x); 35 36 CeedVectorCreate(ceed, num_elem * Q, &q_data); 37 38 // Restrictions 39 for (CeedInt i = 0; i < num_elem; i++) { 40 ind_x[2 * i + 0] = i; 41 ind_x[2 * i + 1] = i + 1; 42 } 43 CeedElemRestrictionCreate(ceed, num_elem, 2, 1, 1, Nx, CEED_MEM_HOST, CEED_USE_POINTER, ind_x, &elem_restr_x); 44 45 for (CeedInt i = 0; i < num_elem; i++) { 46 for (CeedInt j = 0; j < P; j++) { 47 ind_u[P * i + j] = i * (P - 1) + j; 48 } 49 } 50 CeedElemRestrictionCreate(ceed, num_elem, P, 1, 1, Nu, CEED_MEM_HOST, CEED_USE_POINTER, ind_u, &elem_restr_u); 51 CeedInt strides_qd[3] = {1, Q, Q}; 52 CeedElemRestrictionCreateStrided(ceed, num_elem, Q, 1, Q * num_elem, strides_qd, &elem_restr_qd_i); 53 54 // Bases 55 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, 2, Q, CEED_GAUSS, &basis_x); 56 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, P, Q, CEED_GAUSS, &basis_u); 57 58 // QFunctions 59 CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup); 60 CeedQFunctionAddInput(qf_setup, "weight", 1, CEED_EVAL_WEIGHT); 61 CeedQFunctionAddInput(qf_setup, "dx", 1, CEED_EVAL_GRAD); 62 CeedQFunctionAddOutput(qf_setup, "rho", 1, CEED_EVAL_NONE); 63 64 CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass); 65 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE); 66 CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP); 67 CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP); 68 69 // Operators 70 CeedOperatorCreate(ceed, qf_setup, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_setup); 71 72 CeedOperatorCreate(ceed, qf_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_mass); 73 74 CeedOperatorSetField(op_setup, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, CEED_VECTOR_NONE); 75 CeedOperatorSetField(op_setup, "dx", elem_restr_x, basis_x, X); 76 CeedOperatorSetField(op_setup, "rho", elem_restr_qd_i, CEED_BASIS_COLLOCATED, q_data); 77 78 CeedOperatorSetField(op_mass, "rho", elem_restr_qd_i, CEED_BASIS_COLLOCATED, q_data); 79 CeedOperatorSetField(op_mass, "u", elem_restr_u, basis_u, U); 80 CeedOperatorSetField(op_mass, "v", elem_restr_u, basis_u, V); 81 82 // Note - It is atypical to use only passive fields; this test is intended 83 // as a test for all passive input modes rather than as an example. 84 CeedOperatorApply(op_setup, CEED_VECTOR_NONE, CEED_VECTOR_NONE, CEED_REQUEST_IMMEDIATE); 85 CeedOperatorApply(op_mass, CEED_VECTOR_NONE, CEED_VECTOR_NONE, CEED_REQUEST_IMMEDIATE); 86 87 // Check output 88 CeedVectorGetArrayRead(V, CEED_MEM_HOST, &hv); 89 sum = 0.; 90 for (CeedInt i = 0; i < Nu; i++) sum += hv[i]; 91 if (fabs(sum - 1.) > 1000. * CEED_EPSILON) printf("Computed Area: %f != True Area: 1.0\n", sum); 92 CeedVectorRestoreArrayRead(V, &hv); 93 94 CeedQFunctionDestroy(&qf_setup); 95 CeedQFunctionDestroy(&qf_mass); 96 CeedOperatorDestroy(&op_setup); 97 CeedOperatorDestroy(&op_mass); 98 CeedElemRestrictionDestroy(&elem_restr_u); 99 CeedElemRestrictionDestroy(&elem_restr_x); 100 CeedElemRestrictionDestroy(&elem_restr_qd_i); 101 CeedBasisDestroy(&basis_u); 102 CeedBasisDestroy(&basis_x); 103 CeedVectorDestroy(&X); 104 CeedVectorDestroy(&U); 105 CeedVectorDestroy(&V); 106 CeedVectorDestroy(&q_data); 107 CeedDestroy(&ceed); 108 return 0; 109 } 110