1 static void buildmats(CeedScalar *qref, CeedScalar *qweight, CeedScalar *interp, 2 CeedScalar *grad) { 3 CeedInt P = 6, Q = 4; 4 5 qref[0] = 0.2; 6 qref[1] = 0.6; 7 qref[2] = 1./3.; 8 qref[3] = 0.2; 9 qref[4] = 0.2; 10 qref[5] = 0.2; 11 qref[6] = 1./3.; 12 qref[7] = 0.6; 13 qweight[0] = 25./96.; 14 qweight[1] = 25./96.; 15 qweight[2] = -27./96.; 16 qweight[3] = 25./96.; 17 18 // Loop over quadrature points 19 for (int i=0; i<Q; i++) { 20 CeedScalar x1 = qref[0*Q+i], x2 = qref[1*Q+i]; 21 // Interp 22 interp[i*P+0] = 2.*(x1+x2-1.)*(x1+x2-1./2.); 23 interp[i*P+1] = -4.*x1*(x1+x2-1.); 24 interp[i*P+2] = 2.*x1*(x1-1./2.); 25 interp[i*P+3] = -4.*x2*(x1+x2-1.); 26 interp[i*P+4] = 4.*x1*x2; 27 interp[i*P+5] = 2.*x2*(x2-1./2.); 28 // Grad 29 grad[(i+0)*P+0] = 2.*(1.*(x1+x2-1./2.)+(x1+x2-1.)*1.); 30 grad[(i+Q)*P+0] = 2.*(1.*(x1+x2-1./2.)+(x1+x2-1.)*1.); 31 grad[(i+0)*P+1] = -4.*(1.*(x1+x2-1.)+x1*1.); 32 grad[(i+Q)*P+1] = -4.*(x1*1.); 33 grad[(i+0)*P+2] = 2.*(1.*(x1-1./2.)+x1*1.); 34 grad[(i+Q)*P+2] = 2.*0.; 35 grad[(i+0)*P+3] = -4.*(x2*1.); 36 grad[(i+Q)*P+3] = -4.*(1.*(x1+x2-1.)+x2*1.); 37 grad[(i+0)*P+4] = 4.*(1.*x2); 38 grad[(i+Q)*P+4] = 4.*(x1*1.); 39 grad[(i+0)*P+5] = 2.*0.; 40 grad[(i+Q)*P+5] = 2.*(1.*(x2-1./2.)+x2*1.); 41 } 42 } 43