1 /// @file 2 /// Test assembly of mass matrix operator QFunction 3 /// \test Test assembly of mass matrix operator QFunction 4 #include <ceed.h> 5 #include <stdlib.h> 6 #include <math.h> 7 #include "t510-operator.h" 8 9 int main(int argc, char **argv) { 10 Ceed ceed; 11 CeedElemRestriction Erestrictx, Erestrictu, 12 Erestrictui, Erestrictlini; 13 CeedBasis bx, bu; 14 CeedQFunction qf_setup, qf_mass; 15 CeedOperator op_setup, op_mass; 16 CeedVector qdata, X, A, u, v; 17 const CeedScalar *a, *q; 18 CeedInt nelem = 6, P = 3, Q = 4, dim = 2; 19 CeedInt nx = 3, ny = 2; 20 CeedInt ndofs = (nx*2+1)*(ny*2+1), nqpts = nelem*Q*Q; 21 CeedInt indx[nelem*P*P]; 22 CeedScalar x[dim*ndofs]; 23 24 CeedInit(argv[1], &ceed); 25 26 // DoF Coordinates 27 for (CeedInt i=0; i<nx*2+1; i++) 28 for (CeedInt j=0; j<ny*2+1; j++) { 29 x[i+j*(nx*2+1)+0*ndofs] = (CeedScalar) i / (2*nx); 30 x[i+j*(nx*2+1)+1*ndofs] = (CeedScalar) j / (2*ny); 31 } 32 CeedVectorCreate(ceed, dim*ndofs, &X); 33 CeedVectorSetArray(X, CEED_MEM_HOST, CEED_USE_POINTER, x); 34 35 // Qdata Vector 36 CeedVectorCreate(ceed, nqpts, &qdata); 37 38 // Element Setup 39 for (CeedInt i=0; i<nelem; i++) { 40 CeedInt col, row, offset; 41 col = i % nx; 42 row = i / nx; 43 offset = col*(P-1) + row*(nx*2+1)*(P-1); 44 for (CeedInt j=0; j<P; j++) 45 for (CeedInt k=0; k<P; k++) 46 indx[P*(P*i+k)+j] = offset + k*(nx*2+1) + j; 47 } 48 49 // Restrictions 50 CeedElemRestrictionCreate(ceed, nelem, P*P, dim, ndofs, dim*ndofs, 51 CEED_MEM_HOST, CEED_USE_POINTER, indx, &Erestrictx); 52 53 CeedElemRestrictionCreate(ceed, nelem, P*P, 1, 1, ndofs, CEED_MEM_HOST, 54 CEED_USE_POINTER, indx, &Erestrictu); 55 CeedInt stridesu[3] = {1, Q*Q, Q*Q}; 56 CeedElemRestrictionCreateStrided(ceed, nelem, Q*Q, 1, nqpts, stridesu, 57 &Erestrictui); 58 59 // Bases 60 CeedBasisCreateTensorH1Lagrange(ceed, dim, dim, P, Q, CEED_GAUSS, &bx); 61 CeedBasisCreateTensorH1Lagrange(ceed, dim, 1, P, Q, CEED_GAUSS, &bu); 62 63 // QFunctions 64 CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup); 65 CeedQFunctionAddInput(qf_setup, "_weight", 1, CEED_EVAL_WEIGHT); 66 CeedQFunctionAddInput(qf_setup, "dx", dim*dim, CEED_EVAL_GRAD); 67 CeedQFunctionAddOutput(qf_setup, "rho", 1, CEED_EVAL_NONE); 68 69 CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass); 70 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE); 71 CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP); 72 CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP); 73 74 // Operators 75 CeedOperatorCreate(ceed, qf_setup, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, 76 &op_setup); 77 CeedOperatorSetField(op_setup, "_weight", CEED_ELEMRESTRICTION_NONE, bx, 78 CEED_VECTOR_NONE); 79 CeedOperatorSetField(op_setup, "dx", Erestrictx, bx, CEED_VECTOR_ACTIVE); 80 CeedOperatorSetField(op_setup, "rho", Erestrictui, CEED_BASIS_COLLOCATED, 81 CEED_VECTOR_ACTIVE); 82 83 CeedOperatorCreate(ceed, qf_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, 84 &op_mass); 85 CeedOperatorSetField(op_mass, "rho", Erestrictui, CEED_BASIS_COLLOCATED, 86 qdata); 87 CeedOperatorSetField(op_mass, "u", Erestrictu, bu, CEED_VECTOR_ACTIVE); 88 CeedOperatorSetField(op_mass, "v", Erestrictu, bu, CEED_VECTOR_ACTIVE); 89 90 // Apply Setup Operator 91 CeedOperatorApply(op_setup, X, qdata, CEED_REQUEST_IMMEDIATE); 92 93 // Assemble QFunction 94 CeedOperatorLinearAssembleQFunction(op_mass, &A, &Erestrictlini, 95 CEED_REQUEST_IMMEDIATE); 96 97 // Check output 98 CeedVectorGetArrayRead(A, CEED_MEM_HOST, &a); 99 CeedVectorGetArrayRead(qdata, CEED_MEM_HOST, &q); 100 for (CeedInt i=0; i<nqpts; i++) 101 if (fabs(q[i] - a[i]) > 1e-9) 102 // LCOV_EXCL_START 103 printf("Error: A[%d] = %f != %f\n", i, a[i], q[i]); 104 // LCOV_EXCL_STOP 105 CeedVectorRestoreArrayRead(A, &a); 106 CeedVectorRestoreArrayRead(qdata, &q); 107 108 // Apply original Mass Operator 109 CeedVectorCreate(ceed, ndofs, &u); 110 CeedVectorSetValue(u, 1.0); 111 CeedVectorCreate(ceed, ndofs, &v); 112 CeedVectorSetValue(v, 0.0); 113 CeedOperatorApply(op_mass, u, v, CEED_REQUEST_IMMEDIATE); 114 115 // Check output 116 CeedScalar area = 0.0; 117 const CeedScalar *vv; 118 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &vv); 119 for (CeedInt i=0; i<ndofs; i++) 120 area += vv[i]; 121 CeedVectorRestoreArrayRead(v, &vv); 122 if (fabs(area - 1.0) > 1e-14) 123 // LCOV_EXCL_START 124 printf("Error: True operator computed area = %f != 1.0\n", area); 125 // LCOV_EXCL_STOP 126 127 // Switch to new qdata 128 CeedVectorGetArrayRead(A, CEED_MEM_HOST, &a); 129 CeedVectorSetArray(qdata, CEED_MEM_HOST, CEED_COPY_VALUES, (CeedScalar *)a); 130 CeedVectorRestoreArrayRead(A, &a); 131 132 // Apply new Mass Operator 133 CeedOperatorApply(op_mass, u, v, CEED_REQUEST_IMMEDIATE); 134 135 // Check output 136 area = 0.0; 137 CeedVectorGetArrayRead(v, CEED_MEM_HOST, &vv); 138 for (CeedInt i=0; i<ndofs; i++) 139 area += vv[i]; 140 CeedVectorRestoreArrayRead(v, &vv); 141 if (fabs(area - 1.0) > 1e-10) 142 // LCOV_EXCL_START 143 printf("Error: Linearized operator computed area = %f != 1.0\n", area); 144 // LCOV_EXCL_STOP 145 146 // Cleanup 147 CeedQFunctionDestroy(&qf_setup); 148 CeedQFunctionDestroy(&qf_mass); 149 CeedOperatorDestroy(&op_setup); 150 CeedOperatorDestroy(&op_mass); 151 CeedElemRestrictionDestroy(&Erestrictu); 152 CeedElemRestrictionDestroy(&Erestrictx); 153 CeedElemRestrictionDestroy(&Erestrictui); 154 CeedElemRestrictionDestroy(&Erestrictlini); 155 CeedBasisDestroy(&bu); 156 CeedBasisDestroy(&bx); 157 CeedVectorDestroy(&X); 158 CeedVectorDestroy(&A); 159 CeedVectorDestroy(&qdata); 160 CeedVectorDestroy(&u); 161 CeedVectorDestroy(&v); 162 CeedDestroy(&ceed); 163 return 0; 164 } 165