1 /// @file 2 /// Test creation creation, action, and destruction for mass matrix operator 3 /// \test Test creation creation, action, and destruction for mass matrix operator 4 #include <ceed.h> 5 #include <stdlib.h> 6 7 //! [QFunction User Code] 8 static int setup(void *ctx, CeedInt Q, const CeedScalar *const *in, 9 CeedScalar *const *out); 10 static int mass(void *ctx, CeedInt Q, const CeedScalar *const *in, 11 CeedScalar *const *out); 12 //! [QFunction User Code] 13 14 static int setup(void *ctx, CeedInt Q, const CeedScalar *const *in, 15 CeedScalar *const *out) { 16 const CeedScalar *weight = in[0], *dxdX = in[1]; 17 CeedScalar *rho = out[0]; 18 for (CeedInt i=0; i<Q; i++) { 19 rho[i] = weight[i] * dxdX[i]; 20 } 21 return 0; 22 } 23 24 static int mass(void *ctx, CeedInt Q, const CeedScalar *const *in, 25 CeedScalar *const *out) { 26 const CeedScalar *rho = in[0], *u = in[1]; 27 CeedScalar *v = out[0]; 28 for (CeedInt i=0; i<Q; i++) { 29 v[i] = rho[i] * u[i]; 30 } 31 return 0; 32 } 33 34 int main(int argc, char **argv) { 35 Ceed ceed; 36 CeedElemRestriction Erestrictx, Erestrictu, Erestrictxi, Erestrictui; 37 CeedBasis bx, bu; 38 CeedQFunction qf_setup, qf_mass; CeedOperator op_setup, op_mass; 39 CeedVector qdata, X, U, V; 40 CeedScalar *hu; 41 const CeedScalar *hv; 42 CeedInt nelem = 15, P = 5, Q = 8; 43 CeedInt Nx = nelem+1, Nu = nelem*(P-1)+1; 44 CeedInt indx[nelem*2], indu[nelem*P]; 45 CeedScalar x[Nx]; 46 47 //! [Ceed Init] 48 CeedInit(argv[1], &ceed); 49 //! [Ceed Init] 50 for (CeedInt i=0; i<Nx; i++) x[i] = (CeedScalar) i / (Nx - 1); 51 for (CeedInt i=0; i<nelem; i++) { 52 indx[2*i+0] = i; 53 indx[2*i+1] = i+1; 54 } 55 //! [ElemRestr Create] 56 CeedElemRestrictionCreate(ceed, nelem, 2, Nx, 1, CEED_MEM_HOST, 57 CEED_USE_POINTER, 58 indx, &Erestrictx); 59 CeedElemRestrictionCreateIdentity(ceed, nelem, 2, nelem*2, 1, &Erestrictxi); 60 //! [ElemRestr Create] 61 62 for (CeedInt i=0; i<nelem; i++) { 63 for (CeedInt j=0; j<P; j++) { 64 indu[P*i+j] = i*(P-1) + j; 65 } 66 } 67 //! [ElemRestrU Create] 68 CeedElemRestrictionCreate(ceed, nelem, P, Nu, 1, CEED_MEM_HOST, 69 CEED_USE_POINTER, 70 indu, &Erestrictu); 71 CeedElemRestrictionCreateIdentity(ceed, nelem, Q, Q*nelem, 1, &Erestrictui); 72 //! [ElemRestrU Create] 73 74 //! [Basis Create] 75 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, 2, Q, CEED_GAUSS, &bx); 76 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, P, Q, CEED_GAUSS, &bu); 77 //! [Basis Create] 78 79 //! [QFunction Create] 80 CeedQFunctionCreateInterior(ceed, 1, setup, __FILE__ ":setup", &qf_setup); 81 CeedQFunctionAddInput(qf_setup, "_weight", 1, CEED_EVAL_WEIGHT); 82 CeedQFunctionAddInput(qf_setup, "x", 1, CEED_EVAL_GRAD); 83 CeedQFunctionAddOutput(qf_setup, "rho", 1, CEED_EVAL_NONE); 84 85 CeedQFunctionCreateInterior(ceed, 1, mass, __FILE__ ":mass", &qf_mass); 86 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE); 87 CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP); 88 CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP); 89 //! [QFunction Create] 90 91 //! [Setup Create] 92 CeedOperatorCreate(ceed, qf_setup, NULL, NULL, &op_setup); 93 //! [Setup Create] 94 95 //! [Operator Create] 96 CeedOperatorCreate(ceed, qf_mass, NULL, NULL, &op_mass); 97 //! [Operator Create] 98 99 CeedVectorCreate(ceed, Nx, &X); 100 CeedVectorSetArray(X, CEED_MEM_HOST, CEED_USE_POINTER, x); 101 CeedVectorCreate(ceed, nelem*Q, &qdata); 102 103 //! [Setup Set] 104 CeedOperatorSetField(op_setup, "_weight", Erestrictxi, bx, 105 CEED_VECTOR_NONE); 106 CeedOperatorSetField(op_setup, "x", Erestrictx, bx, CEED_VECTOR_ACTIVE); 107 CeedOperatorSetField(op_setup, "rho", Erestrictui, 108 CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE); 109 //! [Setup Set] 110 111 //! [Operator Set] 112 CeedOperatorSetField(op_mass, "rho", Erestrictui, 113 CEED_BASIS_COLLOCATED, qdata); 114 CeedOperatorSetField(op_mass, "u", Erestrictu, bu, CEED_VECTOR_ACTIVE); 115 CeedOperatorSetField(op_mass, "v", Erestrictu, bu, CEED_VECTOR_ACTIVE); 116 //! [Operator Set] 117 118 //! [Setup Apply] 119 CeedOperatorApply(op_setup, X, qdata, CEED_REQUEST_IMMEDIATE); 120 //! [Setup Apply] 121 122 CeedVectorCreate(ceed, Nu, &U); 123 CeedVectorGetArray(U, CEED_MEM_HOST, &hu); 124 for (CeedInt i=0; i<Nu; i++) 125 hu[i] = 0.0; 126 CeedVectorRestoreArray(U, &hu); 127 CeedVectorCreate(ceed, Nu, &V); 128 //! [Operator Apply] 129 CeedOperatorApply(op_mass, U, V, CEED_REQUEST_IMMEDIATE); 130 //! [Operator Apply] 131 132 CeedVectorGetArrayRead(V, CEED_MEM_HOST, &hv); 133 for (CeedInt i=0; i<Nu; i++) 134 if (hv[i] != 0.0) printf("[%d] v %g != 0.0\n",i, hv[i]); 135 CeedVectorRestoreArrayRead(V, &hv); 136 137 CeedQFunctionDestroy(&qf_setup); 138 CeedQFunctionDestroy(&qf_mass); 139 CeedOperatorDestroy(&op_setup); 140 CeedOperatorDestroy(&op_mass); 141 CeedElemRestrictionDestroy(&Erestrictu); 142 CeedElemRestrictionDestroy(&Erestrictx); 143 CeedElemRestrictionDestroy(&Erestrictui); 144 CeedElemRestrictionDestroy(&Erestrictxi); 145 CeedBasisDestroy(&bu); 146 CeedBasisDestroy(&bx); 147 CeedVectorDestroy(&X); 148 CeedVectorDestroy(&U); 149 CeedVectorDestroy(&V); 150 CeedVectorDestroy(&qdata); 151 CeedDestroy(&ceed); 152 return 0; 153 } 154