1 /// @file 2 /// Test assembly of Poisson operator QFunction 3 /// \test Test assembly of Poisson operator QFunction 4 #include <ceed.h> 5 #include <stdlib.h> 6 #include <math.h> 7 #include "t531-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, Erestrictlini; 15 CeedBasis bx, bu; 16 CeedQFunction qf_setup, qf_diff, qf_diff_lin; 17 CeedOperator op_setup, op_diff, op_diff_lin; 18 CeedVector qdata, 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]; 24 25 CeedInit(argv[1], &ceed); 26 27 // DoF Coordinates 28 for (CeedInt i=0; i<nx*2+1; i++) 29 for (CeedInt j=0; j<ny*2+1; j++) { 30 x[i+j*(nx*2+1)+0*ndofs] = (CeedScalar) i / (2*nx); 31 x[i+j*(nx*2+1)+1*ndofs] = (CeedScalar) j / (2*ny); 32 } 33 CeedVectorCreate(ceed, dim*ndofs, &X); 34 CeedVectorSetArray(X, CEED_MEM_HOST, CEED_USE_POINTER, x); 35 36 // Qdata Vector 37 CeedVectorCreate(ceed, nqpts*dim*(dim+1)/2, &qdata); 38 39 // Element Setup 40 for (CeedInt i=0; i<nelem; i++) { 41 CeedInt col, row, offset; 42 col = i % nx; 43 row = i / nx; 44 offset = col*(P-1) + row*(nx*2+1)*(P-1); 45 for (CeedInt j=0; j<P; j++) 46 for (CeedInt k=0; k<P; k++) 47 indx[P*(P*i+k)+j] = offset + k*(nx*2+1) + j; 48 } 49 50 // Restrictions 51 CeedElemRestrictionCreate(ceed, imode, nelem, P*P, ndofs, dim, CEED_MEM_HOST, 52 CEED_USE_POINTER, indx, &Erestrictx); 53 CeedInt stridesx[3] = {1, P*P, P *P*dim}; 54 CeedElemRestrictionCreateStrided(ceed, nelem, P*P, nelem*P*P, dim, stridesx, 55 &Erestrictxi); 56 57 CeedElemRestrictionCreate(ceed, imode, nelem, P*P, ndofs, 1, CEED_MEM_HOST, 58 CEED_USE_POINTER, indx, &Erestrictu); 59 CeedInt stridesu[3] = {1, Q*Q, Q *Q*dim}; 60 CeedElemRestrictionCreateStrided(ceed, nelem, Q*Q, nqpts, 1, stridesu, 61 &Erestrictui); 62 63 CeedInt stridesqd[3] = {1, Q*Q, Q *Q *dim *(dim+1)/2}; 64 CeedElemRestrictionCreateStrided(ceed, nelem, Q*Q, nqpts, dim*(dim+1)/2, 65 stridesqd, &Erestrictqi); 66 67 // Bases 68 CeedBasisCreateTensorH1Lagrange(ceed, dim, dim, P, Q, CEED_GAUSS, &bx); 69 CeedBasisCreateTensorH1Lagrange(ceed, dim, 1, P, Q, CEED_GAUSS, &bu); 70 71 // QFunction - setup 72 CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup); 73 CeedQFunctionAddInput(qf_setup, "dx", dim*dim, CEED_EVAL_GRAD); 74 CeedQFunctionAddInput(qf_setup, "_weight", 1, CEED_EVAL_WEIGHT); 75 CeedQFunctionAddOutput(qf_setup, "qdata", dim*(dim+1)/2, CEED_EVAL_NONE); 76 77 // Operator - setup 78 CeedOperatorCreate(ceed, qf_setup, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, 79 &op_setup); 80 CeedOperatorSetField(op_setup, "dx", Erestrictx, bx, CEED_VECTOR_ACTIVE); 81 CeedOperatorSetField(op_setup, "_weight", Erestrictxi, bx, CEED_VECTOR_NONE); 82 CeedOperatorSetField(op_setup, "qdata", Erestrictqi, CEED_BASIS_COLLOCATED, 83 CEED_VECTOR_ACTIVE); 84 85 // Apply Setup Operator 86 CeedOperatorApply(op_setup, X, qdata, CEED_REQUEST_IMMEDIATE); 87 88 // QFunction - apply 89 CeedQFunctionCreateInterior(ceed, 1, diff, diff_loc, &qf_diff); 90 CeedQFunctionAddInput(qf_diff, "du", dim, CEED_EVAL_GRAD); 91 CeedQFunctionAddInput(qf_diff, "qdata", dim*(dim+1)/2, CEED_EVAL_NONE); 92 CeedQFunctionAddOutput(qf_diff, "dv", dim, CEED_EVAL_GRAD); 93 94 // Operator - apply 95 CeedOperatorCreate(ceed, qf_diff, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, 96 &op_diff); 97 CeedOperatorSetField(op_diff, "du", Erestrictu, bu, CEED_VECTOR_ACTIVE); 98 CeedOperatorSetField(op_diff, "qdata", Erestrictqi, CEED_BASIS_COLLOCATED, 99 qdata); 100 CeedOperatorSetField(op_diff, "dv", Erestrictu, bu, CEED_VECTOR_ACTIVE); 101 102 // Apply original Poisson Operator 103 CeedVectorCreate(ceed, ndofs, &u); 104 CeedVectorSetValue(u, 1.0); 105 CeedVectorCreate(ceed, ndofs, &v); 106 CeedVectorSetValue(v, 0.0); 107 CeedOperatorApply(op_diff, u, v, CEED_REQUEST_IMMEDIATE); 108 109 // Check output 110 const CeedScalar *vv; 111 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &vv); 112 for (CeedInt i=0; i<ndofs; i++) 113 if (fabs(vv[i]) > 1e-14) 114 // LCOV_EXCL_START 115 printf("Error: Operator computed v[i] = %f != 0.0\n", vv[i]); 116 // LCOV_EXCL_STOP 117 CeedVectorRestoreArrayRead(v, &vv); 118 119 // Assemble QFunction 120 CeedOperatorAssembleLinearQFunction(op_diff, &A, &Erestrictlini, 121 CEED_REQUEST_IMMEDIATE); 122 123 // QFunction - apply assembled 124 CeedQFunctionCreateInterior(ceed, 1, diff_lin, diff_lin_loc, &qf_diff_lin); 125 CeedQFunctionAddInput(qf_diff_lin, "du", dim, CEED_EVAL_GRAD); 126 CeedQFunctionAddInput(qf_diff_lin, "qdata", dim*dim, CEED_EVAL_NONE); 127 CeedQFunctionAddOutput(qf_diff_lin, "dv", dim, CEED_EVAL_GRAD); 128 129 // Operator - apply assembled 130 CeedOperatorCreate(ceed, qf_diff_lin, CEED_QFUNCTION_NONE, 131 CEED_QFUNCTION_NONE, &op_diff_lin); 132 CeedOperatorSetField(op_diff_lin, "du", Erestrictu, bu, CEED_VECTOR_ACTIVE); 133 CeedOperatorSetField(op_diff_lin, "qdata", Erestrictlini, 134 CEED_BASIS_COLLOCATED, A); 135 CeedOperatorSetField(op_diff_lin, "dv", Erestrictu, bu, CEED_VECTOR_ACTIVE); 136 137 // Apply new Poisson Operator 138 CeedVectorSetValue(v, 0.0); 139 CeedOperatorApply(op_diff_lin, u, v, CEED_REQUEST_IMMEDIATE); 140 141 // Check output 142 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &vv); 143 for (CeedInt i=0; i<ndofs; i++) 144 if (fabs(vv[i]) > 1e-14) 145 // LCOV_EXCL_START 146 printf("Error: Linerized operator computed v[i] = %f != 0.0\n", vv[i]); 147 // LCOV_EXCL_STOP 148 CeedVectorRestoreArrayRead(v, &vv); 149 150 // Cleanup 151 CeedQFunctionDestroy(&qf_setup); 152 CeedQFunctionDestroy(&qf_diff); 153 CeedQFunctionDestroy(&qf_diff_lin); 154 CeedOperatorDestroy(&op_setup); 155 CeedOperatorDestroy(&op_diff); 156 CeedOperatorDestroy(&op_diff_lin); 157 CeedElemRestrictionDestroy(&Erestrictu); 158 CeedElemRestrictionDestroy(&Erestrictx); 159 CeedElemRestrictionDestroy(&Erestrictui); 160 CeedElemRestrictionDestroy(&Erestrictxi); 161 CeedElemRestrictionDestroy(&Erestrictqi); 162 CeedElemRestrictionDestroy(&Erestrictlini); 163 CeedBasisDestroy(&bu); 164 CeedBasisDestroy(&bx); 165 CeedVectorDestroy(&X); 166 CeedVectorDestroy(&A); 167 CeedVectorDestroy(&qdata); 168 CeedVectorDestroy(&u); 169 CeedVectorDestroy(&v); 170 CeedDestroy(&ceed); 171 return 0; 172 } 173