1 /// @file 2 /// Test FLOP estimation for mass matrix operator at points 3 /// \test Test FLOP estimation for mass matrix operator at points 4 #include "t595-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 CeedInt num_elem_1d = 3, num_elem = num_elem_1d * num_elem_1d, dim = 2, p = 3, q = 5; 14 CeedInt num_nodes = (num_elem_1d * (p - 1) + 1) * (num_elem_1d * (p - 1) + 1), num_points_per_elem = 4, num_points = num_elem * num_points_per_elem; 15 CeedSize flop_estimate = 0; 16 CeedVector x_points, q_data; 17 CeedElemRestriction elem_restriction_x_points, elem_restriction_q_data, elem_restriction_u; 18 CeedBasis basis_x, basis_u; 19 CeedQFunction qf_mass; 20 CeedOperator op_mass; 21 bool is_at_points; 22 23 CeedInit(argv[1], &ceed); 24 25 // Point reference coordinates 26 CeedVectorCreate(ceed, dim * num_points, &x_points); 27 { 28 CeedScalar x_array[dim * num_points]; 29 30 for (CeedInt e = 0; e < num_elem; e++) { 31 for (CeedInt d = 0; d < dim; d++) { 32 x_array[num_points_per_elem * (e * dim + d) + 0] = 0.25; 33 x_array[num_points_per_elem * (e * dim + d) + 1] = d == 0 ? -0.25 : 0.25; 34 x_array[num_points_per_elem * (e * dim + d) + 2] = d == 0 ? 0.25 : -0.25; 35 x_array[num_points_per_elem * (e * dim + d) + 3] = 0.25; 36 } 37 } 38 CeedVectorSetArray(x_points, CEED_MEM_HOST, CEED_COPY_VALUES, x_array); 39 } 40 { 41 CeedInt ind_x[num_elem + 1 + num_points]; 42 43 for (CeedInt i = 0; i <= num_elem; i++) ind_x[i] = num_elem + 1 + i * num_points_per_elem; 44 for (CeedInt i = 0; i < num_points; i++) ind_x[num_elem + 1 + i] = i; 45 CeedElemRestrictionCreateAtPoints(ceed, num_elem, num_points, dim, num_points * dim, CEED_MEM_HOST, CEED_COPY_VALUES, ind_x, 46 &elem_restriction_x_points); 47 CeedElemRestrictionCreateAtPoints(ceed, num_elem, num_points, 1, num_points, CEED_MEM_HOST, CEED_COPY_VALUES, ind_x, &elem_restriction_q_data); 48 } 49 50 // Q data 51 CeedVectorCreate(ceed, num_points, &q_data); 52 53 CeedBasisCreateTensorH1Lagrange(ceed, dim, dim, 2, q, CEED_GAUSS, &basis_x); 54 55 // Cell solution 56 { 57 CeedInt ind_u[num_elem * p * p]; 58 59 for (CeedInt e = 0; e < num_elem; e++) { 60 CeedInt elem_xy[2] = {1, 1}, n_d[2] = {0, 0}; 61 62 for (CeedInt d = 0; d < dim; d++) n_d[d] = num_elem_1d * (p - 1) + 1; 63 { 64 CeedInt r_e = e; 65 66 for (CeedInt d = 0; d < dim; d++) { 67 elem_xy[d] = r_e % num_elem_1d; 68 r_e /= num_elem_1d; 69 } 70 } 71 CeedInt num_nodes_in_elem = p * p, *elem_nodes = ind_u + e * num_nodes_in_elem; 72 73 for (CeedInt n = 0; n < num_nodes_in_elem; n++) { 74 CeedInt g_node = 0, g_node_stride = 1, r_node = n; 75 76 for (CeedInt d = 0; d < dim; d++) { 77 g_node += (elem_xy[d] * (p - 1) + r_node % p) * g_node_stride; 78 g_node_stride *= n_d[d]; 79 r_node /= p; 80 } 81 elem_nodes[n] = g_node; 82 } 83 } 84 CeedElemRestrictionCreate(ceed, num_elem, p * p, 1, 1, num_nodes, CEED_MEM_HOST, CEED_COPY_VALUES, ind_u, &elem_restriction_u); 85 } 86 CeedBasisCreateTensorH1Lagrange(ceed, dim, 1, p, q, CEED_GAUSS, &basis_u); 87 88 // Mass operator 89 CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass); 90 CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP); 91 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE); 92 CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP); 93 94 CeedOperatorCreateAtPoints(ceed, qf_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, &op_mass); 95 CeedOperatorSetField(op_mass, "u", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 96 CeedOperatorSetField(op_mass, "rho", elem_restriction_q_data, CEED_BASIS_NONE, q_data); 97 CeedOperatorSetField(op_mass, "v", elem_restriction_u, basis_u, CEED_VECTOR_ACTIVE); 98 CeedOperatorAtPointsSetPoints(op_mass, elem_restriction_x_points, x_points); 99 100 CeedOperatorIsAtPoints(op_mass, &is_at_points); 101 if (!is_at_points) printf("Error: Operator should be at points\n"); 102 103 // Estimate FLOPs 104 CeedQFunctionSetUserFlopsEstimate(qf_mass, 1); 105 CeedOperatorGetFlopsEstimate(op_mass, &flop_estimate); 106 107 // Check output 108 if (flop_estimate != 16317) { 109 // LCOV_EXCL_START 110 printf("Incorrect FLOP estimate computed, %ld != 16317\n", flop_estimate); 111 // LCOV_EXCL_STOP 112 } 113 114 CeedVectorDestroy(&x_points); 115 CeedVectorDestroy(&q_data); 116 CeedElemRestrictionDestroy(&elem_restriction_x_points); 117 CeedElemRestrictionDestroy(&elem_restriction_q_data); 118 CeedElemRestrictionDestroy(&elem_restriction_u); 119 CeedBasisDestroy(&basis_x); 120 CeedBasisDestroy(&basis_u); 121 CeedQFunctionDestroy(&qf_mass); 122 CeedOperatorDestroy(&op_mass); 123 CeedDestroy(&ceed); 124 return 0; 125 } 126