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_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 // Vectors 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, num_nodes_u, &u); 32 CeedVectorCreate(ceed, 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] = i * (p - 1) + j; 45 } 46 } 47 CeedElemRestrictionCreate(ceed, num_elem, p, 1, 1, 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, 1, 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, 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", 1, CEED_EVAL_INTERP); 65 CeedQFunctionAddOutput(qf_mass, "v", 1, 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, x); 71 CeedOperatorSetField(op_setup, "rho", elem_restriction_q_data, CEED_BASIS_COLLOCATED, q_data); 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_COLLOCATED, q_data); 75 CeedOperatorSetField(op_mass, "u", elem_restriction_u, basis_u, u); 76 CeedOperatorSetField(op_mass, "v", elem_restriction_u, basis_u, v); 77 78 // Note - It is atypical to use only passive fields; this test is intended 79 // as a test for all passive input modes rather than as an example. 80 CeedOperatorApply(op_setup, CEED_VECTOR_NONE, CEED_VECTOR_NONE, CEED_REQUEST_IMMEDIATE); 81 CeedVectorSetValue(u, 1.0); 82 CeedOperatorApply(op_mass, CEED_VECTOR_NONE, CEED_VECTOR_NONE, 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 CeedVectorDestroy(&x); 96 CeedVectorDestroy(&u); 97 CeedVectorDestroy(&v); 98 CeedVectorDestroy(&q_data); 99 CeedElemRestrictionDestroy(&elem_restriction_u); 100 CeedElemRestrictionDestroy(&elem_restriction_x); 101 CeedElemRestrictionDestroy(&elem_restriction_q_data); 102 CeedBasisDestroy(&basis_u); 103 CeedBasisDestroy(&basis_x); 104 CeedQFunctionDestroy(&qf_setup); 105 CeedQFunctionDestroy(&qf_mass); 106 CeedOperatorDestroy(&op_setup); 107 CeedOperatorDestroy(&op_mass); 108 CeedDestroy(&ceed); 109 return 0; 110 } 111