[MITgcm-support] Linking problem (with adjoint, gfortran, OS X) - 'duplicate symbol' error

Wed Oct 27 19:00:03 EDT 2010

Hi,

When I try to build an adjoint, at the 'make adall' stage I get the following error.

ld: duplicate symbol _adams_bashforth2_ in ad_taf_output.o and adams_bashforth2.o
collect2: ld returned 1 exit status
make: *** [mitgcmuv_ad] Error 1

I see that both ad_taf_output.o and adams_bashforth2.o contain the subroutine 'adams_bashforth2' - alphabetically the first relevant one included - but am unsure whether this is a gfortran problem or if the adjoint build has gone wrong.

Here is the full compile command from 'make adall' before compilation/linking crashes:

gfortran  -o mitgcmuv_ad -ffixed-form -Wunused -Wuninitialized -fconvert=big-endian  -O3 -funroll-loops active_file.o active_file_ad.o active_file_control.o active_file_control_slice.o active_file_g.o active_file_loc.o active_file_loc_ad.o active_file_loc_control.o active_file_loc_control_slice.o active_file_loc_g.o addummy_in_stepping.o adopen_adclose.o adread_adwrite.o adzero_adj.o autodiff_check.o autodiff_inadmode_set.o autodiff_inadmode_set_ad.o autodiff_inadmode_set_g.o autodiff_inadmode_unset.o autodiff_inadmode_unset_ad.o autodiff_inadmode_unset_g.o autodiff_ini_model_io.o autodiff_restore.o autodiff_store.o dummy_in_stepping.o exch_3d_ad.o exch_ad.o exch_agrid_3d_ad.o exch_uv_ad.o g_dummy_in_stepping.o global_max_ad.o global_sum_ad.o global_sum_tile_ad.o ini_autodiff.o myactivefunction.o myactivefunction_ad.o zero_adj.o cd_code_ini_vars.o cd_code_init_fixed.o cd_code_read_pickup.o cd_code_scheme.o cd_code_write_pickup.o cost_accumulate_mean.o cost_atlantic_heat.o cost_check.o cost_dependent_init.o cost_depth.o cost_final.o cost_final_restore.o cost_final_store.o cost_init_varia.o cost_readparms.o cost_state_final.o cost_test.o cost_tile.o cost_tracer.o cost_vector.o adctrl_bound.o ctrl_bound.o ctrl_check.o ctrl_depth_ini.o ctrl_get_gen.o ctrl_get_gen_rec.o ctrl_getobcse.o ctrl_getobcsn.o ctrl_getobcss.o ctrl_getobcsw.o ctrl_getrec.o ctrl_hfacc_ini.o ctrl_init.o ctrl_init_ctrlvar.o ctrl_init_obcs_variables.o ctrl_init_variables.o ctrl_init_wet.o ctrl_map_forcing.o ctrl_map_ini.o ctrl_map_ini_ecco.o ctrl_map_ini_gen.o ctrl_mask_set_xz.o ctrl_mask_set_yz.o ctrl_obcsbal.o ctrl_obcsvol.o ctrl_pack.o ctrl_readparms.o ctrl_set_fname.o ctrl_set_globfld_xy.o ctrl_set_globfld_xyz.o ctrl_set_globfld_xz.o ctrl_set_globfld_yz.o ctrl_set_pack_xy.o ctrl_set_pack_xyz.o ctrl_set_pack_xz.o ctrl_set_pack_yz.o ctrl_set_unpack_xy.o ctrl_set_unpack_xyz.o ctrl_set_unpack_xz.o ctrl_set_unpack_yz.o ctrl_smooth.o ctrl_summary.o ctrl_unpack.o ctrl_volflux.o optim_readparms.o chksum_tiled.o debug_call.o debug_cs_corner_uv.o debug_enter.o debug_fld_stats_rl.o debug_fld_stats_rs.o debug_leave.o debug_msg.o debug_stats_rl.o debug_stats_rs.o fill_in_corners_rl.o write_fullarray_rl.o gad_advection.o gad_biharm_x.o gad_biharm_y.o gad_c2_adv_r.o gad_c2_adv_x.o gad_c2_adv_y.o gad_c2_impl_r.o gad_c4_adv_r.o gad_c4_adv_x.o gad_c4_adv_y.o gad_calc_rhs.o gad_check.o gad_del2.o gad_diagnostics_init.o gad_diagnostics_state.o gad_diff_r.o gad_diff_x.o gad_diff_y.o gad_dst2u1_adv_r.o gad_dst2u1_adv_x.o gad_dst2u1_adv_y.o gad_dst2u1_impl_r.o gad_dst3_adv_r.o gad_dst3_adv_x.o gad_dst3_adv_y.o gad_dst3fl_adv_r.o gad_dst3fl_adv_x.o gad_dst3fl_adv_y.o gad_dst3fl_impl_r.o gad_exch_som.o gad_fluxlimit_adv_r.o gad_fluxlimit_adv_x.o gad_fluxlimit_adv_y.o gad_fluxlimit_impl_r.o gad_grad_x.o gad_grad_y.o gad_implicit_r.o gad_init_fixed.o gad_init_varia.o gad_os7mp_adv_r.o gad_os7mp_adv_x.o gad_os7mp_adv_y.o gad_read_pickup.o gad_som_adv_r.o gad_som_adv_x.o gad_som_adv_y.o gad_som_advect.o gad_som_exchanges.o gad_som_fill_cs_corner.o gad_som_lim_r.o gad_som_prep_cs_corner.o gad_u3_adv_r.o gad_u3_adv_x.o gad_u3_adv_y.o gad_u3c4_impl_r.o gad_write_pickup.o salt_fill.o gmredi_calc_diff.o gmredi_calc_psi_b.o gmredi_calc_tensor.o gmredi_calc_uvflow.o gmredi_calc_wflow.o gmredi_check.o gmredi_diagnostics_fill.o gmredi_diagnostics_init.o gmredi_init.o gmredi_init_fixed.o gmredi_mnc_init.o gmredi_output.o gmredi_readparms.o gmredi_rtransport.o gmredi_slope_limit.o gmredi_slope_psi.o gmredi_xtransport.o gmredi_ytransport.o grdchk_check.o grdchk_get_obcs_mask.o grdchk_get_position.o grdchk_getadxx.o grdchk_getxx.o grdchk_init.o grdchk_loc.o grdchk_main.o grdchk_print.o grdchk_readparms.o grdchk_setxx.o grdchk_summary.o mdsio_buffertorl.o mdsio_buffertors.o mdsio_facef_read.o mdsio_gl.o mdsio_gl_slice.o mdsio_pass_r4torl.o mdsio_pass_r4tors.o mdsio_pass_r8torl.o mdsio_pass_r8tors.o mdsio_rd_rec_rl.o mdsio_rd_rec_rs.o mdsio_read_field.o mdsio_read_meta.o mdsio_read_section.o mdsio_readvector.o mdsio_rw_field.o mdsio_rw_slice.o mdsio_seg4torl.o mdsio_seg4tors.o mdsio_seg8torl.o mdsio_seg8tors.o mdsio_segxtorx_2d.o mdsio_wr_metafiles.o mdsio_wr_rec_rl.o mdsio_wr_rec_rs.o mdsio_write_field.o mdsio_write_meta.o mdsio_write_section.o mdsio_writelocal.o mdsio_writemeta.o mdsio_writevec_loc.o mdsio_writevector.o mom_calc_rtrans.o mom_fluxform.o mom_u_adv_uu.o mom_u_adv_vu.o mom_u_adv_wu.o mom_u_coriolis.o mom_u_del2u.o mom_u_metric_cylinder.o mom_u_metric_sphere.o mom_u_xviscflux.o mom_u_yviscflux.o mom_uv_boundary.o mom_v_adv_uv.o mom_v_adv_vv.o mom_v_adv_wv.o mom_v_coriolis.o mom_v_del2v.o mom_v_metric_cylinder.o mom_v_metric_sphere.o mom_v_xviscflux.o mom_v_yviscflux.o mom_vecinv.o mom_vi_coriolis.o mom_vi_del2uv.o mom_vi_hdissip.o mom_vi_u_coriolis.o mom_vi_u_coriolis_c4.o mom_vi_u_grad_ke.o mom_vi_u_vertshear.o mom_vi_v_coriolis.o mom_vi_v_coriolis_c4.o mom_vi_v_grad_ke.o mom_vi_v_vertshear.o get_write_global_fld.o read_fld_xy_rl.o read_fld_xy_rs.o read_fld_xyz_rl.o read_fld_xyz_rs.o read_mflds.o read_rec.o set_write_global_fld.o write_fld_3d_rl.o write_fld_3d_rs.o write_fld_xy_rl.o write_fld_xy_rs.o write_fld_xyz_rl.o write_fld_xyz_rs.o write_glvec_rl.o write_glvec_rs.o write_local_rl.o write_local_rs.o write_rec.o sbo_calc.o sbo_check.o sbo_output.o sbo_readparms.o sbo_rho.o sbo_writevector.o timeave_cumul_1k.o timeave_cumul_1k1t.o timeave_cumul_1t.o timeave_cumul_1vfc.o timeave_cumul_2v.o timeave_cumul_2vfc.o timeave_cumul_dif_1t.o timeave_cumul_fc.o timeave_cumulate.o timeave_init_fixed.o timeave_norma_1k.o timeave_norma_2v.o timeave_normaliz.o timeave_reset.o timeave_reset_1k.o timeave_statv_write.o timeave_statvars.o timeave_surf_flux.o mom_calc_absvort3.o mom_calc_hdiv.o mom_calc_hfacz.o mom_calc_ke.o mom_calc_relvort3.o mom_calc_strain.o mom_calc_tension.o mom_calc_visc.o mom_diagnostics_init.o mom_hdissip.o mom_init_fixed.o mom_quasihydrostatic.o mom_u_bottomdrag.o mom_u_coriolis_nh.o mom_u_implicit_r.o mom_u_metric_nh.o mom_u_rviscflux.o mom_u_sidedrag.o mom_v_bottomdrag.o mom_v_coriolis_nh.o mom_v_implicit_r.o mom_v_metric_nh.o mom_v_rviscflux.o mom_v_sidedrag.o mom_w_coriolis_nh.o mom_w_metric_nh.o mom_w_sidedrag.o all_proc_die.o bar2.o bar_check.o barrier.o check_threads.o comm_stats.o dfile.o diff_phase_multiple.o different_multiple.o eeboot.o eeboot_minimal.o eedata_example.o eedie.o eeintro_msg.o eeset_parms.o eewrite_eeenv.o exch_3d_r4.o exch_3d_r8.o exch_3d_rl.o exch_3d_rs.o exch_bg_r4_cube.o exch_bg_r8_cube.o exch_bg_rl_cube.o exch_bg_rs_cube.o exch_cycle_ebl.o exch_init.o exch_jam.o exch_r4.o exch_r4_cube.o exch_r4_recv_get_x.o exch_r4_recv_get_y.o exch_r4_send_put_x.o exch_r4_send_put_y.o exch_r8.o exch_r8_cube.o exch_r8_recv_get_x.o exch_r8_recv_get_y.o exch_r8_send_put_x.o exch_r8_send_put_y.o exch_rl.o exch_rl_cube.o exch_rl_recv_get_x.o exch_rl_recv_get_y.o exch_rl_send_put_x.o exch_rl_send_put_y.o exch_rs.o exch_rs_cube.o exch_rs_recv_get_x.o exch_rs_recv_get_y.o exch_rs_send_put_x.o exch_rs_send_put_y.o exch_s3d_r4.o exch_s3d_r8.o exch_s3d_rl.o exch_s3d_rs.o exch_sm_3d_r4.o exch_sm_3d_r8.o exch_sm_3d_rl.o exch_sm_3d_rs.o exch_uv_3d_r4.o exch_uv_3d_r8.o exch_uv_3d_rl.o exch_uv_3d_rs.o exch_uv_agrid_3d_r4.o exch_uv_agrid_3d_r8.o exch_uv_agrid_3d_rl.o exch_uv_agrid_3d_rs.o exch_uv_bgrid_3d_r4.o exch_uv_bgrid_3d_r8.o exch_uv_bgrid_3d_rl.o exch_uv_bgrid_3d_rs.o exch_uv_dgrid_3d_r4.o exch_uv_dgrid_3d_r8.o exch_uv_dgrid_3d_rl.o exch_uv_dgrid_3d_rs.o exch_uv_r4_cube.o exch_uv_r8_cube.o exch_uv_rl_cube.o exch_uv_rs_cube.o exch_uv_xy_r4.o exch_uv_xy_r8.o exch_uv_xy_rl.o exch_uv_xy_rs.o exch_uv_xyz_r4.o exch_uv_xyz_r8.o exch_uv_xyz_rl.o exch_uv_xyz_rs.o exch_xy_r4.o exch_xy_r8.o exch_xy_rl.o exch_xy_rs.o exch_xyz_r4.o exch_xyz_r8.o exch_xyz_rl.o exch_xyz_rs.o exch_z_3d_r4.o exch_z_3d_r8.o exch_z_3d_rl.o exch_z_3d_rs.o exch_z_r4_cube.o exch_z_r8_cube.o exch_z_rl_cube.o exch_z_rs_cube.o fill_cs_corner_ag_rl.o fill_cs_corner_tr_rl.o fill_cs_corner_uv_rs.o fool_the_compiler.o gather_2d_r4.o gather_2d_r8.o gather_vector.o gather_xz.o gather_yz.o global_max.o global_sum.o global_sum_singlecpu.o global_sum_tile.o global_vec_sum.o gsum.o gsum_jam.o ini_communication_patterns.o ini_jam.o ini_procs.o ini_threading_environment.o lef_zero.o main.o master_cpu_io.o master_cpu_thread.o mds_byteswapi4.o mds_byteswapr4.o mds_byteswapr8.o mds_check4file.o mds_reclen.o mdsfindunit.o memsync.o nml_filter.o nml_set_terminator.o open_copy_data_file.o print.o scatter_2d_r4.o scatter_2d_r8.o scatter_vector.o scatter_xz.o scatter_yz.o stop_if_error.o timers.o utils.o write_utils.o adams_bashforth2.o adams_bashforth3.o askparam.o calc_3d_diffusivity.o calc_buoyancy.o calc_common_factors.o calc_diffusivity.o calc_div_ghat.o calc_grad_phi_hyd.o calc_grad_phi_surf.o calc_gs.o calc_gt.o calc_gw.o calc_ivdc.o calc_oce_mxlayer.o calc_phi_hyd.o calc_r_star.o calc_surf_dr.o calc_viscosity.o calc_wsurf_tr.o cg2d.o cg2d_nsa.o cg3d.o check_pickup.o config_check.o config_summary.o convective_adjustment.o convective_adjustment_ini.o convective_weights.o convectively_mixtracer.o correction_step.o cycle_tracer.o diags_oceanic_surf_flux.o diags_phi_hyd.o diags_phi_rlow.o diags_rho.o do_atmospheric_phys.o do_fields_blocking_exchanges.o do_gterm_blocking_exchanges.o do_oceanic_phys.o do_stagger_fields_exchanges.o do_statevars_diags.o do_statevars_tave.o do_the_model_io.o do_write_pickup.o dynamics.o external_fields_load.o external_forcing.o external_forcing_surf.o find_alpha.o find_rho.o forward_step.o freesurf_rescale_g.o freeze.o freeze_surface.o grad_sigma.o impldiff.o ini_cartesian_grid.o ini_cg2d.o ini_cg3d.o ini_cori.o ini_curvilinear_grid.o ini_cylinder_grid.o ini_depths.o ini_dynvars.o ini_eos.o ini_fields.o ini_forcing.o ini_grid.o ini_hfac.o ini_linear_phisurf.o ini_masks_etc.o ini_mixing.o ini_mnc_vars.o ini_model_io.o ini_nh_vars.o ini_p_ground.o ini_parms.o ini_pnh.o ini_pressure.o ini_psurf.o ini_r_star.o ini_salt.o ini_spherical_polar_grid.o ini_surf_dr.o ini_theta.o ini_vel.o ini_vertical_grid.o initialise_fixed.o initialise_varia.o integr_continuity.o integrate_for_w.o load_fields_driver.o load_grid_spacing.o load_ref_files.o modeldata_example.o momentum_correction_step.o packages_boot.o packages_check.o packages_error_msg.o packages_init_fixed.o packages_init_variables.o packages_readparms.o packages_write_pickup.o plot_field.o port_rand.o pressure_for_eos.o read_pickup.o remove_mean.o rotate_spherical_polar_grid.o seawater.o set_defaults.o set_grid_factors.o set_parms.o set_ref_state.o set_write_global_pickup.o solve_for_pressure.o solve_pentadiagonal.o solve_tridiagonal.o state_summary.o swfrac.o taueddy_external_forcing.o taueddy_init_varia.o the_main_loop.o the_model_main.o thermodynamics.o timestep.o timestep_tracer.o timestep_wvel.o tracers_correction_step.o tracers_iigw_correction.o update_cg2d.o update_etah.o update_masks_etc.o update_r_star.o update_surf_dr.o write_grid.o write_pickup.o write_state.o gsl_ieee_env.o ptwrapper.o setrlstk.o sigreg.o tim.o timer_stats.o  ad_taf_output.o -L/usr/local/netCDF/gfortran/netCDF3.6.3/lib/ -lnetcdf 

ld: duplicate symbol _adams_bashforth2_ in ad_taf_output.o and adams_bashforth2.o
collect2: ld returned 1 exit status
make: *** [mitgcmuv_ad] Error 1

-------
More info:  

gfortran -v
Using built-in specs.
Target: x86_64-apple-darwin10
Configured with: ../gcc-4.5-20090910/configure --enable-languages=fortran --host=x86_64-apple-darwin10 --build=x86_64-apple-darwin10
Thread model: posix

uname -mrsv
Darwin 10.4.0 Darwin Kernel Version 10.4.0: Fri Apr 23 18:28:53 PDT 2010; root:xnu-1504.7.4~1/RELEASE_I386 i386

Thanks!

Chris