1 /// @file 2 /// Test assembly of mass and Poisson operator diagonal 3 /// \test Test assembly of mass and Poisson operator diagonal 4 #include <ceed.h> 5 #include <stdlib.h> 6 #include <math.h> 7 #include "t535-operator.h" 8 9 int main(int argc, char **argv) { 10 Ceed ceed; 11 CeedInterlaceMode imode = CEED_NONINTERLACED; 12 CeedElemRestriction Erestrictx, Erestrictu, 13 Erestrictxi, Erestrictui, 14 Erestrictqi; 15 CeedBasis bx, bu; 16 CeedQFunction qf_setup_mass, qf_setup_diff, qf_apply; 17 CeedOperator op_setup_mass, op_setup_diff, op_apply; 18 CeedVector qdata_mass, qdata_diff, X, A, U, V; 19 CeedInt nelem = 6, P = 3, Q = 4, dim = 2; 20 CeedInt nx = 3, ny = 2; 21 CeedInt ndofs = (nx*2+1)*(ny*2+1), nqpts = nelem*Q*Q; 22 CeedInt indx[nelem*P*P]; 23 CeedScalar x[dim*ndofs], assembledTrue[ndofs]; 24 CeedScalar *u; 25 const CeedScalar *a, *v; 26 27 CeedInit(argv[1], &ceed); 28 29 // DoF Coordinates 30 for (CeedInt i=0; i<nx*2+1; i++) 31 for (CeedInt j=0; j<ny*2+1; j++) { 32 x[i+j*(nx*2+1)+0*ndofs] = (CeedScalar) i / (2*nx); 33 x[i+j*(nx*2+1)+1*ndofs] = (CeedScalar) j / (2*ny); 34 } 35 CeedVectorCreate(ceed, dim*ndofs, &X); 36 CeedVectorSetArray(X, CEED_MEM_HOST, CEED_USE_POINTER, x); 37 38 // Qdata Vectors 39 CeedVectorCreate(ceed, nqpts, &qdata_mass); 40 CeedVectorCreate(ceed, nqpts*dim*(dim+1)/2, &qdata_diff); 41 42 // Element Setup 43 for (CeedInt i=0; i<nelem; i++) { 44 CeedInt col, row, offset; 45 col = i % nx; 46 row = i / nx; 47 offset = col*(P-1) + row*(nx*2+1)*(P-1); 48 for (CeedInt j=0; j<P; j++) 49 for (CeedInt k=0; k<P; k++) 50 indx[P*(P*i+k)+j] = offset + k*(nx*2+1) + j; 51 } 52 53 // Restrictions 54 CeedElemRestrictionCreate(ceed, imode, nelem, P*P, ndofs, dim, CEED_MEM_HOST, 55 CEED_USE_POINTER, indx, &Erestrictx); 56 CeedInt stridesx[3] = {1, P*P, P *P*dim}; 57 CeedElemRestrictionCreateStrided(ceed, nelem, P*P, nelem*P*P, dim, stridesx, 58 &Erestrictxi); 59 60 CeedElemRestrictionCreate(ceed, imode, nelem, P*P, ndofs, 1, CEED_MEM_HOST, 61 CEED_USE_POINTER, indx, &Erestrictu); 62 CeedInt stridesu[3] = {1, Q*Q, Q*Q}; 63 CeedElemRestrictionCreateStrided(ceed, nelem, Q*Q, nqpts, 1, stridesu, 64 &Erestrictui); 65 66 CeedInt stridesqd[3] = {1, Q*Q, Q *Q *dim *(dim+1)/2}; 67 CeedElemRestrictionCreateStrided(ceed, nelem, Q*Q, nqpts, dim*(dim+1)/2, 68 stridesqd, &Erestrictqi); 69 70 // Bases 71 CeedBasisCreateTensorH1Lagrange(ceed, dim, dim, P, Q, CEED_GAUSS, &bx); 72 CeedBasisCreateTensorH1Lagrange(ceed, dim, 1, P, Q, CEED_GAUSS, &bu); 73 74 // QFunction - setup mass 75 CeedQFunctionCreateInterior(ceed, 1, setup_mass, setup_mass_loc, 76 &qf_setup_mass); 77 CeedQFunctionAddInput(qf_setup_mass, "dx", dim*dim, CEED_EVAL_GRAD); 78 CeedQFunctionAddInput(qf_setup_mass, "_weight", 1, CEED_EVAL_WEIGHT); 79 CeedQFunctionAddOutput(qf_setup_mass, "qdata", 1, CEED_EVAL_NONE); 80 81 // Operator - setup mass 82 CeedOperatorCreate(ceed, qf_setup_mass, CEED_QFUNCTION_NONE, 83 CEED_QFUNCTION_NONE, &op_setup_mass); 84 CeedOperatorSetField(op_setup_mass, "dx", Erestrictx, bx, CEED_VECTOR_ACTIVE); 85 CeedOperatorSetField(op_setup_mass, "_weight", Erestrictxi, bx, 86 CEED_VECTOR_NONE); 87 CeedOperatorSetField(op_setup_mass, "qdata", Erestrictui, 88 CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE); 89 90 // QFunction - setup diff 91 CeedQFunctionCreateInterior(ceed, 1, setup_diff, setup_diff_loc, 92 &qf_setup_diff); 93 CeedQFunctionAddInput(qf_setup_diff, "dx", dim*dim, CEED_EVAL_GRAD); 94 CeedQFunctionAddInput(qf_setup_diff, "_weight", 1, CEED_EVAL_WEIGHT); 95 CeedQFunctionAddOutput(qf_setup_diff, "qdata", dim*(dim+1)/2, CEED_EVAL_NONE); 96 97 // Operator - setup diff 98 CeedOperatorCreate(ceed, qf_setup_diff, CEED_QFUNCTION_NONE, 99 CEED_QFUNCTION_NONE, &op_setup_diff); 100 CeedOperatorSetField(op_setup_diff, "dx", Erestrictx, bx, CEED_VECTOR_ACTIVE); 101 CeedOperatorSetField(op_setup_diff, "_weight", Erestrictxi, bx, 102 CEED_VECTOR_NONE); 103 CeedOperatorSetField(op_setup_diff, "qdata", Erestrictqi, 104 CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE); 105 106 // Apply Setup Operators 107 CeedOperatorApply(op_setup_mass, X, qdata_mass, CEED_REQUEST_IMMEDIATE); 108 CeedOperatorApply(op_setup_diff, X, qdata_diff, CEED_REQUEST_IMMEDIATE); 109 110 // QFunction - apply 111 CeedQFunctionCreateInterior(ceed, 1, apply, apply_loc, &qf_apply); 112 CeedQFunctionAddInput(qf_apply, "du", dim, CEED_EVAL_GRAD); 113 CeedQFunctionAddInput(qf_apply, "qdata_mass", 1, CEED_EVAL_NONE); 114 CeedQFunctionAddInput(qf_apply, "qdata_diff", dim*(dim+1)/2, CEED_EVAL_NONE); 115 CeedQFunctionAddInput(qf_apply, "u", 1, CEED_EVAL_INTERP); 116 CeedQFunctionAddOutput(qf_apply, "v", 1, CEED_EVAL_INTERP); 117 CeedQFunctionAddOutput(qf_apply, "dv", dim, CEED_EVAL_GRAD); 118 119 // Operator - apply 120 CeedOperatorCreate(ceed, qf_apply, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, 121 &op_apply); 122 CeedOperatorSetField(op_apply, "du", Erestrictu, bu, CEED_VECTOR_ACTIVE); 123 CeedOperatorSetField(op_apply, "qdata_mass", Erestrictui, 124 CEED_BASIS_COLLOCATED, qdata_mass); 125 CeedOperatorSetField(op_apply, "qdata_diff", Erestrictqi, 126 CEED_BASIS_COLLOCATED, qdata_diff); 127 CeedOperatorSetField(op_apply, "u", Erestrictu, bu, CEED_VECTOR_ACTIVE); 128 CeedOperatorSetField(op_apply, "v", Erestrictu, bu, CEED_VECTOR_ACTIVE); 129 CeedOperatorSetField(op_apply, "dv", Erestrictu, bu, CEED_VECTOR_ACTIVE); 130 131 // Assemble diagonal 132 CeedOperatorAssembleLinearDiagonal(op_apply, &A, CEED_REQUEST_IMMEDIATE); 133 134 // Manually assemble diagonal 135 CeedVectorCreate(ceed, ndofs, &U); 136 CeedVectorSetValue(U, 0.0); 137 CeedVectorCreate(ceed, ndofs, &V); 138 for (int i=0; i<ndofs; i++) { 139 // Set input 140 CeedVectorGetArray(U, CEED_MEM_HOST, &u); 141 u[i] = 1.0; 142 if (i) 143 u[i-1] = 0.0; 144 CeedVectorRestoreArray(U, &u); 145 146 // Compute diag entry for DoF i 147 CeedOperatorApply(op_apply, U, V, CEED_REQUEST_IMMEDIATE); 148 149 // Retrieve entry 150 CeedVectorGetArrayRead(V, CEED_MEM_HOST, &v); 151 assembledTrue[i] = v[i]; 152 CeedVectorRestoreArrayRead(V, &v); 153 } 154 155 // Check output 156 CeedVectorGetArrayRead(A, CEED_MEM_HOST, &a); 157 for (int i=0; i<ndofs; i++) 158 if (fabs(a[i] - assembledTrue[i]) > 1e-14) 159 // LCOV_EXCL_START 160 printf("[%d] Error in assembly: %f != %f\n", i, a[i], assembledTrue[i]); 161 // LCOV_EXCL_STOP 162 163 // Cleanup 164 CeedQFunctionDestroy(&qf_setup_mass); 165 CeedQFunctionDestroy(&qf_setup_diff); 166 CeedQFunctionDestroy(&qf_apply); 167 CeedOperatorDestroy(&op_setup_mass); 168 CeedOperatorDestroy(&op_setup_diff); 169 CeedOperatorDestroy(&op_apply); 170 CeedElemRestrictionDestroy(&Erestrictu); 171 CeedElemRestrictionDestroy(&Erestrictx); 172 CeedElemRestrictionDestroy(&Erestrictui); 173 CeedElemRestrictionDestroy(&Erestrictxi); 174 CeedElemRestrictionDestroy(&Erestrictqi); 175 CeedBasisDestroy(&bu); 176 CeedBasisDestroy(&bx); 177 CeedVectorDestroy(&X); 178 CeedVectorDestroy(&A); 179 CeedVectorDestroy(&qdata_mass); 180 CeedVectorDestroy(&qdata_diff); 181 CeedVectorDestroy(&U); 182 CeedVectorDestroy(&V); 183 CeedDestroy(&ceed); 184 return 0; 185 } 186