1 /// @file 2 /// Test CeedOperatorApplyAdd 3 /// \test Test CeedOperatorApplyAdd 4 #include <ceed.h> 5 #include <stdlib.h> 6 #include <math.h> 7 8 #include "t500-operator.h" 9 10 int main(int argc, char **argv) { 11 Ceed ceed; 12 CeedElemRestriction Erestrictx, Erestrictu, Erestrictui; 13 CeedBasis bx, bu; 14 CeedQFunction qf_setup, qf_mass; 15 CeedOperator op_setup, op_mass; 16 CeedVector qdata, X, U, V; 17 const CeedScalar *hv; 18 CeedInt nelem = 15, P = 5, Q = 8; 19 CeedInt Nx = nelem+1, Nu = nelem*(P-1)+1; 20 CeedInt indx[nelem*2], indu[nelem*P]; 21 CeedScalar x[Nx]; 22 CeedScalar sum; 23 24 CeedInit(argv[1], &ceed); 25 26 for (CeedInt i=0; i<Nx; i++) 27 x[i] = (CeedScalar) i / (Nx - 1); 28 for (CeedInt i=0; i<nelem; i++) { 29 indx[2*i+0] = i; 30 indx[2*i+1] = i+1; 31 } 32 // Restrictions 33 CeedElemRestrictionCreate(ceed, nelem, 2, 1, 1, Nx, CEED_MEM_HOST, 34 CEED_USE_POINTER, indx, &Erestrictx); 35 36 for (CeedInt i=0; i<nelem; i++) { 37 for (CeedInt j=0; j<P; j++) { 38 indu[P*i+j] = i*(P-1) + j; 39 } 40 } 41 CeedElemRestrictionCreate(ceed, nelem, P, 1, 1, Nu, CEED_MEM_HOST, 42 CEED_USE_POINTER, indu, &Erestrictu); 43 CeedInt stridesu[3] = {1, Q, Q}; 44 CeedElemRestrictionCreateStrided(ceed, nelem, Q, 1, Q*nelem, stridesu, 45 &Erestrictui); 46 47 // Bases 48 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, 2, Q, CEED_GAUSS, &bx); 49 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, P, Q, CEED_GAUSS, &bu); 50 51 // QFunctions 52 CeedQFunctionCreateInterior(ceed, 1, setup, setup_loc, &qf_setup); 53 CeedQFunctionAddInput(qf_setup, "_weight", 1, CEED_EVAL_WEIGHT); 54 CeedQFunctionAddInput(qf_setup, "dx", 1, CEED_EVAL_GRAD); 55 CeedQFunctionAddOutput(qf_setup, "rho", 1, CEED_EVAL_NONE); 56 57 CeedQFunctionCreateInterior(ceed, 1, mass, mass_loc, &qf_mass); 58 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE); 59 CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP); 60 CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP); 61 62 // Operators 63 CeedOperatorCreate(ceed, qf_setup, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, 64 &op_setup); 65 66 CeedOperatorCreate(ceed, qf_mass, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, 67 &op_mass); 68 69 CeedVectorCreate(ceed, Nx, &X); 70 CeedVectorSetArray(X, CEED_MEM_HOST, CEED_USE_POINTER, x); 71 CeedVectorCreate(ceed, nelem*Q, &qdata); 72 73 CeedOperatorSetField(op_setup, "_weight", CEED_ELEMRESTRICTION_NONE, bx, 74 CEED_VECTOR_NONE); 75 CeedOperatorSetField(op_setup, "dx", Erestrictx, bx, CEED_VECTOR_ACTIVE); 76 CeedOperatorSetField(op_setup, "rho", Erestrictui, CEED_BASIS_COLLOCATED, 77 CEED_VECTOR_ACTIVE); 78 79 CeedOperatorSetField(op_mass, "rho", Erestrictui, CEED_BASIS_COLLOCATED, 80 qdata); 81 CeedOperatorSetField(op_mass, "u", Erestrictu, bu, CEED_VECTOR_ACTIVE); 82 CeedOperatorSetField(op_mass, "v", Erestrictu, bu, CEED_VECTOR_ACTIVE); 83 84 CeedOperatorApply(op_setup, X, qdata, CEED_REQUEST_IMMEDIATE); 85 86 CeedVectorCreate(ceed, Nu, &U); 87 CeedVectorSetValue(U, 1.0); 88 CeedVectorCreate(ceed, Nu, &V); 89 CeedVectorSetValue(V, 0.0); 90 91 // Apply with V = 0 92 CeedOperatorApplyAdd(op_mass, U, V, CEED_REQUEST_IMMEDIATE); 93 94 // Check output 95 CeedVectorGetArrayRead(V, CEED_MEM_HOST, &hv); 96 sum = 0.; 97 for (CeedInt i=0; i<Nu; i++) 98 sum += hv[i]; 99 if (fabs(sum-1.)>1e-10) printf("Computed Area: %f != True Area: 1.0\n", sum); 100 CeedVectorRestoreArrayRead(V, &hv); 101 102 // Apply with V = 1 103 CeedVectorSetValue(V, 1.0); 104 CeedOperatorApplyAdd(op_mass, U, V, CEED_REQUEST_IMMEDIATE); 105 106 // Check output 107 CeedVectorGetArrayRead(V, CEED_MEM_HOST, &hv); 108 sum = -Nu; 109 for (CeedInt i=0; i<Nu; i++) 110 sum += hv[i]; 111 if (fabs(sum-(1.))>1e-10) printf("Computed Area: %f != True Area: 1.0\n", sum); 112 CeedVectorRestoreArrayRead(V, &hv); 113 114 CeedQFunctionDestroy(&qf_setup); 115 CeedQFunctionDestroy(&qf_mass); 116 CeedOperatorDestroy(&op_setup); 117 CeedOperatorDestroy(&op_mass); 118 CeedElemRestrictionDestroy(&Erestrictu); 119 CeedElemRestrictionDestroy(&Erestrictx); 120 CeedElemRestrictionDestroy(&Erestrictui); 121 CeedBasisDestroy(&bu); 122 CeedBasisDestroy(&bx); 123 CeedVectorDestroy(&X); 124 CeedVectorDestroy(&U); 125 CeedVectorDestroy(&V); 126 CeedVectorDestroy(&qdata); 127 CeedDestroy(&ceed); 128 return 0; 129 } 130