1 /// @file 2 /// Test GetDiv and BasisApply for a 2D Quad non-tensor H(div) basis 3 /// \test Test GetDiv and BasisApply for a 2D Quad non-tensor H(div) basis 4 #include <ceed.h> 5 #include <math.h> 6 #include "t330-basis.h" 7 8 int main(int argc, char **argv) { 9 Ceed ceed; 10 const CeedInt num_nodes = 4, Q = 3, dim = 2, num_qpts = Q*Q; 11 CeedInt num_comp = 1; // one vector componenet 12 CeedInt P = dim*num_nodes; // dof per element! 13 CeedBasis b; 14 CeedScalar q_ref[dim*num_qpts], q_weights[num_qpts]; 15 CeedScalar div[P*num_qpts], interp[P*dim*num_qpts]; 16 CeedVector X, Y; 17 const CeedScalar *y, *x; 18 19 CeedInit(argv[1], &ceed); 20 21 HdivBasisQuad(Q, q_ref, q_weights, interp, div, CEED_GAUSS); 22 CeedBasisCreateHdiv(ceed, CEED_TOPOLOGY_QUAD, num_comp, P, num_qpts, interp, 23 div, q_ref, q_weights, &b); 24 // Test GetDiv 25 const CeedScalar *div2; 26 CeedBasisGetDiv(b, &div2); 27 for (CeedInt i=0; i<P*num_qpts; i++) { 28 if (fabs(div[i] - div2[i]) > 100.*CEED_EPSILON) 29 // LCOV_EXCL_START 30 printf("%f != %f\n", div[i], div2[i]); 31 // LCOV_EXCL_STOP 32 } 33 CeedVectorCreate(ceed, P, &X); 34 CeedVectorSetValue(X, 1); 35 CeedVectorCreate(ceed, num_qpts, &Y); 36 CeedVectorSetValue(Y, 0); 37 // BasisApply for H(div): CEED_EVAL_DIV, NOTRANSPOSE case 38 CeedBasisApply(b, 1, CEED_NOTRANSPOSE, CEED_EVAL_DIV, X, Y); 39 40 CeedVectorGetArrayRead(Y, CEED_MEM_HOST, &y); 41 for (CeedInt i=0; i<num_qpts; i++) { 42 if (fabs(P*0.25 - y[i]) > 100.*CEED_EPSILON) 43 // LCOV_EXCL_START 44 printf("%f != %f\n", 2.0, y[i]); 45 // LCOV_EXCL_STOP 46 } 47 CeedVectorRestoreArrayRead(Y, &y); 48 49 CeedVectorSetValue(Y, 1.0); 50 CeedVectorSetValue(X, 0.0); 51 // BasisApply for H(div): CEED_EVAL_DIV, TRANSPOSE case 52 CeedBasisApply(b, 1, CEED_TRANSPOSE, CEED_EVAL_DIV, Y, X); 53 54 CeedVectorGetArrayRead(X, CEED_MEM_HOST, &x); 55 for (CeedInt i=0; i<P; i++) { 56 if (fabs(num_qpts*0.25 - x[i]) > 100.*CEED_EPSILON) 57 // LCOV_EXCL_START 58 printf("%f != %f\n", 2.0, x[i]); 59 // LCOV_EXCL_STOP 60 } 61 CeedVectorRestoreArrayRead(X, &x); 62 63 CeedBasisDestroy(&b); 64 CeedVectorDestroy(&X); 65 CeedVectorDestroy(&Y); 66 CeedDestroy(&ceed); 67 return 0; 68 } 69