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[求助]
求助UDF函数问题
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我用动网格根据零件位置计算力矩，确定他的运动状态，UDF内容是 int damp_f( real theta, real alpha, real* vol, real* r_m ){ real x0=-300, y0=137.5, x1=-80, y1=-600; real x0r, y0r, dx, dy, d01, ddf; x0r = x0 * cos( theta ) - y0 * sin( theta ); y0r = x0 * sin( theta ) + y0 * cos( theta ); dx = x0r - x1; dy = y0r - y1; d01 = sqrt( pow(dx, 2) + pow(dy, 2) ); *vol = d01 * alpha; *r_m = fabs( (y1 * x0r - x1 * y0r) / d01 ); return 0; } DEFINE_CG_MOTION( piston_damp_sp0, dt, vel, omega, time, dtime ) { face_t f; cell_t c; real f_glob[3], m_glob[3], domega_z, x_cg[ND_ND], m_damp, v_damp; int i, status; NV_S(omega, =, 0.0); for(i=0;i<=3;i++) { f_glob=0; m_glob=0; } x_cg[0] = 0; x_cg[1] = 0; Domain *domain= Get_Domain (1); Thread *tf1 = Lookup_Thread (domain, 3); Compute_Force_And_Moment (domain, tf1, x_cg, f_glob, m_glob, TRUE); real* vol; real* r_m; status = damp_f( theta_z0, alpha_z0, vol, r_m ); v_damp = 4 * (*vol) * (*r_m) ; m_damp = 0; alpha_z0 = (m_glob[2] - m_damp - v_damp )/INERTIA; domega_z = dtime * alpha_z0; omega_z0 += domega_z; theta_z0 = DT_THETA(dt)[2]; Message ("ntime=%f, tz=%.10lf, oz1=%.10lf, oz2=%.10lf, force_x=%.1f ,force_y=%.1f, moment_z=%f, vol=%.1f, rm=%.1f ", \ time, DT_THETA(dt)[2], DT_OMEGA_CG(dt)[2], theta_z0, f_glob[0], f_glob[1], m_glob[2], *vol, *r_m ); omega[2]=omega_z0; } 用多核计算，开始后直接报错， Node 0: Process 5204: Received signal SIGSEGV. ============================================================================== ============================================================================== Node 1: Process 9392: Received signal SIGSEGV. ============================================================================== MPI Application rank 0 exited before MPI_Finalize() with status 2 把函数 damp_f 取消，内容加到 DEFINE_CG_MOTION 里面就没问题，请教UDF里面加函数应该怎么写，还是说UDF里面不能加函数 |
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