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 #include "t310-basis.h" 8 9 static int setup(void *ctx, CeedInt Q, const CeedScalar *const *in, 10 CeedScalar *const *out); 11 static int mass(void *ctx, CeedInt Q, const CeedScalar *const *in, 12 CeedScalar *const *out); 13 14 static int setup(void *ctx, CeedInt Q, const CeedScalar *const *in, 15 CeedScalar *const *out) { 16 const CeedScalar *weight = in[0], *J = in[1]; 17 CeedScalar *rho = out[0]; 18 for (CeedInt i=0; i<Q; i++) { 19 rho[i] = weight[i] * (J[i+Q*0]*J[i+Q*3] - J[i+Q*1]*J[i+Q*2]); 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; 39 CeedOperator op_setup, op_mass; 40 CeedVector qdata, X, U, V; 41 const CeedScalar *hv; 42 CeedInt nelem = 12, dim = 2, P = 6, Q = 4; 43 CeedInt nx = 3, ny = 2; 44 CeedInt row, col, offset; 45 CeedInt Ndofs = (nx*2+1)*(ny*2+1), Nqpts = nelem*Q; 46 CeedInt indx[nelem*P]; 47 CeedScalar x[dim*Ndofs]; 48 CeedScalar qref[dim*Q], qweight[Q]; 49 CeedScalar interp[P*Q], grad[dim*P*Q]; 50 CeedScalar sum; 51 52 CeedInit(argv[1], &ceed); 53 54 for (CeedInt i=0; i<Ndofs; i++) { 55 x[i] = (1. / (nx*2)) * (CeedScalar) (i % (nx*2+1)); 56 x[i+Ndofs] = (1. / (ny*2)) * (CeedScalar) (i / (nx*2+1)); 57 } 58 for (CeedInt i=0; i<nelem/2; i++) { 59 col = i % nx; 60 row = i / nx; 61 offset = col*2 + row*(nx*2+1)*2; 62 63 indx[i*2*P + 0] = 2 + offset; 64 indx[i*2*P + 1] = 9 + offset; 65 indx[i*2*P + 2] = 16 + offset; 66 indx[i*2*P + 3] = 1 + offset; 67 indx[i*2*P + 4] = 8 + offset; 68 indx[i*2*P + 5] = 0 + offset; 69 70 indx[i*2*P + 6] = 14 + offset; 71 indx[i*2*P + 7] = 7 + offset; 72 indx[i*2*P + 8] = 0 + offset; 73 indx[i*2*P + 9] = 15 + offset; 74 indx[i*2*P + 10] = 8 + offset; 75 indx[i*2*P + 11] = 16 + offset; 76 } 77 78 // Restrictions 79 CeedElemRestrictionCreate(ceed, nelem, P, Ndofs, dim, CEED_MEM_HOST, 80 CEED_USE_POINTER, indx, &Erestrictx); 81 CeedElemRestrictionCreateIdentity(ceed, nelem, P, nelem*P, dim, &Erestrictxi); 82 83 CeedElemRestrictionCreate(ceed, nelem, P, Ndofs, 1, CEED_MEM_HOST, 84 CEED_USE_POINTER, indx, &Erestrictu); 85 CeedElemRestrictionCreateIdentity(ceed, nelem, Q, Nqpts, 1, &Erestrictui); 86 87 88 // Bases 89 buildmats(qref, qweight, interp, grad); 90 CeedBasisCreateH1(ceed, CEED_TRIANGLE, dim, P, Q, interp, grad, qref, 91 qweight, &bx); 92 93 buildmats(qref, qweight, interp, grad); 94 CeedBasisCreateH1(ceed, CEED_TRIANGLE, 1, P, Q, interp, grad, qref, 95 qweight, &bu); 96 97 // QFunctions 98 CeedQFunctionCreateInterior(ceed, 1, setup, __FILE__ ":setup", &qf_setup); 99 CeedQFunctionAddInput(qf_setup, "_weight", 1, CEED_EVAL_WEIGHT); 100 CeedQFunctionAddInput(qf_setup, "x", dim, CEED_EVAL_GRAD); 101 CeedQFunctionAddOutput(qf_setup, "rho", 1, CEED_EVAL_NONE); 102 103 CeedQFunctionCreateInterior(ceed, 1, mass, __FILE__ ":mass", &qf_mass); 104 CeedQFunctionAddInput(qf_mass, "rho", 1, CEED_EVAL_NONE); 105 CeedQFunctionAddInput(qf_mass, "u", 1, CEED_EVAL_INTERP); 106 CeedQFunctionAddOutput(qf_mass, "v", 1, CEED_EVAL_INTERP); 107 108 // Operators 109 CeedOperatorCreate(ceed, qf_setup, NULL, NULL, &op_setup); 110 111 CeedOperatorCreate(ceed, qf_mass, NULL, NULL, &op_mass); 112 113 CeedVectorCreate(ceed, dim*Ndofs, &X); 114 CeedVectorSetArray(X, CEED_MEM_HOST, CEED_USE_POINTER, x); 115 CeedVectorCreate(ceed, Nqpts, &qdata); 116 117 CeedOperatorSetField(op_setup, "_weight", Erestrictxi, bx, 118 CEED_VECTOR_NONE); 119 CeedOperatorSetField(op_setup, "x", Erestrictx, bx, CEED_VECTOR_ACTIVE); 120 CeedOperatorSetField(op_setup, "rho", Erestrictui, 121 CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE); 122 123 CeedOperatorSetField(op_mass, "rho", Erestrictui, 124 CEED_BASIS_COLLOCATED, qdata); 125 CeedOperatorSetField(op_mass, "u", Erestrictu, bu, CEED_VECTOR_ACTIVE); 126 CeedOperatorSetField(op_mass, "v", Erestrictu, bu, CEED_VECTOR_ACTIVE); 127 128 CeedOperatorApply(op_setup, X, qdata, CEED_REQUEST_IMMEDIATE); 129 130 CeedVectorCreate(ceed, Ndofs, &U); 131 CeedVectorSetValue(U, 1.0); 132 CeedVectorCreate(ceed, Ndofs, &V); 133 134 CeedOperatorApply(op_mass, U, V, CEED_REQUEST_IMMEDIATE); 135 136 // Check output 137 CeedVectorGetArrayRead(V, CEED_MEM_HOST, &hv); 138 sum = 0.; 139 for (CeedInt i=0; i<Ndofs; i++) 140 sum += hv[i]; 141 if (fabs(sum-1.)>1e-10) printf("Computed Area: %f != True Area: 1.0\n", sum); 142 CeedVectorRestoreArrayRead(V, &hv); 143 144 CeedQFunctionDestroy(&qf_setup); 145 CeedQFunctionDestroy(&qf_mass); 146 CeedOperatorDestroy(&op_setup); 147 CeedOperatorDestroy(&op_mass); 148 CeedElemRestrictionDestroy(&Erestrictu); 149 CeedElemRestrictionDestroy(&Erestrictx); 150 CeedElemRestrictionDestroy(&Erestrictui); 151 CeedElemRestrictionDestroy(&Erestrictxi); 152 CeedBasisDestroy(&bu); 153 CeedBasisDestroy(&bx); 154 CeedVectorDestroy(&X); 155 CeedVectorDestroy(&U); 156 CeedVectorDestroy(&V); 157 CeedVectorDestroy(&qdata); 158 CeedDestroy(&ceed); 159 return 0; 160 } 161