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 <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 // Vectors 25 CeedVectorCreate(ceed, num_nodes_x, &x); 26 { 27 CeedScalar x_array[num_nodes_x]; 28 29 for (CeedInt i = 0; i < num_nodes_x; i++) x_array[i] = (CeedScalar)i / (num_nodes_x - 1); 30 CeedVectorSetArray(x, CEED_MEM_HOST, CEED_COPY_VALUES, x_array); 31 } 32 CeedVectorCreate(ceed, num_nodes_u, &u); 33 CeedVectorCreate(ceed, num_nodes_u, &v); 34 CeedVectorCreate(ceed, num_elem * q, &q_data); 35 36 // Restrictions 37 for (CeedInt i = 0; i < num_elem; i++) { 38 ind_x[2 * i + 0] = i; 39 ind_x[2 * i + 1] = i + 1; 40 } 41 CeedElemRestrictionCreate(ceed, num_elem, 2, 1, 1, num_nodes_x, CEED_MEM_HOST, CEED_USE_POINTER, ind_x, &elem_restriction_x); 42 43 for (CeedInt i = 0; i < num_elem; i++) { 44 for (CeedInt j = 0; j < p; j++) { 45 ind_u[p * i + j] = i * (p - 1) + j; 46 } 47 } 48 CeedElemRestrictionCreate(ceed, num_elem, p, 1, 1, num_nodes_u, CEED_MEM_HOST, CEED_USE_POINTER, ind_u, &elem_restriction_u); 49 50 CeedInt strides_q_data[3] = {1, q, q}; 51 CeedElemRestrictionCreateStrided(ceed, num_elem, q, 1, q * num_elem, strides_q_data, &elem_restriction_q_data); 52 53 // Bases 54 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, 2, q, CEED_GAUSS, &basis_x); 55 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, p, q, CEED_GAUSS, &basis_u); 56 57 // QFunctions 58 CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup); 59 CeedQFunctionAddInput(qf_setup, "weight", 1, CEED_EVAL_WEIGHT); 60 CeedQFunctionAddInput(qf_setup, "dx", 1, CEED_EVAL_GRAD); 61 CeedQFunctionAddOutput(qf_setup, "rho", 1, CEED_EVAL_NONE); 62 63 CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass); 64 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE); 65 CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP); 66 CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP); 67 68 // Operators 69 CeedOperatorCreate(ceed, qf_setup, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_setup); 70 CeedOperatorSetField(op_setup, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, CEED_VECTOR_NONE); 71 CeedOperatorSetField(op_setup, "dx", elem_restriction_x, basis_x, x); 72 CeedOperatorSetField(op_setup, "rho", elem_restriction_q_data, CEED_BASIS_COLLOCATED, q_data); 73 74 CeedOperatorCreate(ceed, qf_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_mass); 75 CeedOperatorSetField(op_mass, "rho", elem_restriction_q_data, CEED_BASIS_COLLOCATED, q_data); 76 CeedOperatorSetField(op_mass, "u", elem_restriction_u, basis_u, u); 77 CeedOperatorSetField(op_mass, "v", elem_restriction_u, basis_u, v); 78 79 // Note - It is atypical to use only passive fields; this test is intended 80 // as a test for all passive input modes rather than as an example. 81 CeedOperatorApply(op_setup, CEED_VECTOR_NONE, CEED_VECTOR_NONE, CEED_REQUEST_IMMEDIATE); 82 CeedVectorSetValue(u, 1.0); 83 CeedOperatorApply(op_mass, CEED_VECTOR_NONE, CEED_VECTOR_NONE, CEED_REQUEST_IMMEDIATE); 84 85 // Check output 86 { 87 const CeedScalar *v_array; 88 CeedScalar sum = 0.; 89 90 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &v_array); 91 for (CeedInt i = 0; i < num_nodes_u; i++) sum += v_array[i]; 92 CeedVectorRestoreArrayRead(v, &v_array); 93 if (fabs(sum - 1.) > 1000. * CEED_EPSILON) printf("Computed Area: %f != True Area: 1.0\n", sum); 94 } 95 96 CeedVectorDestroy(&x); 97 CeedVectorDestroy(&u); 98 CeedVectorDestroy(&v); 99 CeedVectorDestroy(&q_data); 100 CeedElemRestrictionDestroy(&elem_restriction_u); 101 CeedElemRestrictionDestroy(&elem_restriction_x); 102 CeedElemRestrictionDestroy(&elem_restriction_q_data); 103 CeedBasisDestroy(&basis_u); 104 CeedBasisDestroy(&basis_x); 105 CeedQFunctionDestroy(&qf_setup); 106 CeedQFunctionDestroy(&qf_mass); 107 CeedOperatorDestroy(&op_setup); 108 CeedOperatorDestroy(&op_mass); 109 CeedDestroy(&ceed); 110 return 0; 111 } 112