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 #include <math.h> 7 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 13 static int setup(void *ctx, CeedInt Q, const CeedScalar *const *in, 14 CeedScalar *const *out) { 15 const CeedScalar *weight = in[0], *dxdX = in[1]; 16 CeedScalar *rho = out[0]; 17 for (CeedInt i=0; i<Q; i++) { 18 rho[i] = weight[i] * dxdX[i]; 19 } 20 return 0; 21 } 22 23 static int mass(void *ctx, CeedInt Q, const CeedScalar *const *in, 24 CeedScalar *const *out) { 25 const CeedScalar *rho = in[0], *u = in[1]; 26 CeedScalar *v = out[0]; 27 for (CeedInt i=0; i<Q; i++) { 28 v[i] = rho[i] * u[i]; 29 v[Q+i] = rho[i] * u[Q+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; 39 CeedOperator op_setup, op_mass; 40 CeedVector qdata, X, U, V; 41 CeedScalar *hu; 42 const CeedScalar *hv; 43 CeedInt nelem = 15, P = 5, Q = 8; 44 CeedInt Nx = nelem+1, Nu = nelem*(P-1)+1; 45 CeedInt indx[nelem*2], indu[nelem*P]; 46 CeedScalar x[Nx]; 47 CeedScalar sum1, sum2; 48 49 CeedInit(argv[1], &ceed); 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 // Restrictions 56 CeedElemRestrictionCreate(ceed, nelem, 2, Nx, 1, CEED_MEM_HOST, 57 CEED_USE_POINTER, indx, &Erestrictx); 58 CeedElemRestrictionCreateIdentity(ceed, nelem, 2, nelem*2, 1, &Erestrictxi); 59 60 for (CeedInt i=0; i<nelem; i++) { 61 for (CeedInt j=0; j<P; j++) { 62 indu[P*i+j] = i*(P-1) + j; 63 } 64 } 65 CeedElemRestrictionCreate(ceed, nelem, P, Nu, 2, CEED_MEM_HOST, 66 CEED_USE_POINTER, indu, &Erestrictu); 67 CeedElemRestrictionCreateIdentity(ceed, nelem, Q, Q*nelem, 1, &Erestrictui); 68 69 // Bases 70 CeedBasisCreateTensorH1Lagrange(ceed, 1, 1, 2, Q, CEED_GAUSS, &bx); 71 CeedBasisCreateTensorH1Lagrange(ceed, 1, 2, P, Q, CEED_GAUSS, &bu); 72 73 // QFunctions 74 CeedQFunctionCreateInterior(ceed, 1, setup, __FILE__ ":setup", &qf_setup); 75 CeedQFunctionAddInput(qf_setup, "_weight", 1, CEED_EVAL_WEIGHT); 76 CeedQFunctionAddInput(qf_setup, "x", 1, CEED_EVAL_GRAD); 77 CeedQFunctionAddOutput(qf_setup, "rho", 1, CEED_EVAL_NONE); 78 79 CeedQFunctionCreateInterior(ceed, 1, mass, __FILE__ ":mass", &qf_mass); 80 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE); 81 CeedQFunctionAddInput(qf_mass, "u", 2, CEED_EVAL_INTERP); 82 CeedQFunctionAddOutput(qf_mass, "v", 2, CEED_EVAL_INTERP); 83 84 // Operators 85 CeedOperatorCreate(ceed, qf_setup, NULL, NULL, &op_setup); 86 87 CeedOperatorCreate(ceed, qf_mass, NULL, NULL, &op_mass); 88 89 CeedVectorCreate(ceed, Nx, &X); 90 CeedVectorSetArray(X, CEED_MEM_HOST, CEED_USE_POINTER, x); 91 CeedVectorCreate(ceed, nelem*Q, &qdata); 92 93 CeedOperatorSetField(op_setup, "_weight", Erestrictxi, CEED_NOTRANSPOSE, 94 bx, CEED_VECTOR_NONE); 95 CeedOperatorSetField(op_setup, "x", Erestrictx, CEED_NOTRANSPOSE, 96 bx, CEED_VECTOR_ACTIVE); 97 CeedOperatorSetField(op_setup, "rho", Erestrictui, CEED_NOTRANSPOSE, 98 CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE); 99 100 CeedOperatorSetField(op_mass, "rho", Erestrictui, CEED_NOTRANSPOSE, 101 CEED_BASIS_COLLOCATED, qdata); 102 CeedOperatorSetField(op_mass, "u", Erestrictu, CEED_TRANSPOSE, 103 bu, CEED_VECTOR_ACTIVE); 104 CeedOperatorSetField(op_mass, "v", Erestrictu, CEED_TRANSPOSE, 105 bu, CEED_VECTOR_ACTIVE); 106 107 CeedOperatorApply(op_setup, X, qdata, CEED_REQUEST_IMMEDIATE); 108 109 CeedVectorCreate(ceed, 2*Nu, &U); 110 CeedVectorGetArray(U, CEED_MEM_HOST, &hu); 111 for (int i = 0; i < Nu; i++) { 112 hu[2*i] = 1.0; 113 hu[2*i+1] = 2.0; 114 } 115 CeedVectorRestoreArray(U, &hu); 116 CeedVectorCreate(ceed, 2*Nu, &V); 117 CeedOperatorApply(op_mass, U, V, CEED_REQUEST_IMMEDIATE); 118 119 // Check output 120 CeedVectorGetArrayRead(V, CEED_MEM_HOST, &hv); 121 sum1 = 0.; sum2 = 0.; 122 for (CeedInt i=0; i<Nu; i++) { 123 sum1 += hv[2*i]; 124 sum2 += hv[2*i+1]; 125 } 126 if (fabs(sum1-1.)>1e-10) printf("Computed Area: %f != True Area: 1.0\n", sum1); 127 if (fabs(sum2-2.)>1e-10) printf("Computed Area: %f != True Area: 2.0\n", sum2); 128 CeedVectorRestoreArrayRead(V, &hv); 129 130 CeedQFunctionDestroy(&qf_setup); 131 CeedQFunctionDestroy(&qf_mass); 132 CeedOperatorDestroy(&op_setup); 133 CeedOperatorDestroy(&op_mass); 134 CeedElemRestrictionDestroy(&Erestrictu); 135 CeedElemRestrictionDestroy(&Erestrictx); 136 CeedElemRestrictionDestroy(&Erestrictui); 137 CeedElemRestrictionDestroy(&Erestrictxi); 138 CeedBasisDestroy(&bu); 139 CeedBasisDestroy(&bx); 140 CeedVectorDestroy(&X); 141 CeedVectorDestroy(&U); 142 CeedVectorDestroy(&V); 143 CeedVectorDestroy(&qdata); 144 CeedDestroy(&ceed); 145 return 0; 146 } 147