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