In general, a user can modify the driver/coupler settings by editing either env variables or the buildnml files under Buildconf. Specifically, the driver/coupler namelist can be found in and will be generated by the script, $CASEROOT/Buildconf/cpl.buildnml.csh. There are several namelists associated with the driver/coupler and they will be described below. Not all namelist variables are resolved in the buildnml script, but they all can be used. Below, a description of each namelist group and each namelist variable in each group will be presented including a summary of the type and defaults and whether any env variable is associated with the setting. The types are either char (character string), int (integer), r4 (real*4), r8 (real*8), or log (logical). There are three important driver/coupler namelist input files (cpl_modelio.nml, drv_in, and seq_maps.rc) and each file has at least one namelist input group. The namelist groups are modelio, seq_infodata_inparm, seq_timemgr_inparm, ccsm_pes, prof_inparm, pio_inparm, and seq_maps. The files, namelist groups, and list of variables in each namelist group are cpl_modelio.nml (input_filename) modelio (cpl_modelio.nml namelist) diri - obsolete diro - obsolete - obsolete logfile - logfile name drv_in (input filename) seq_infodata_inparm (drv_in namelist) case_desc - case description case_name - case name start_type - start type model_version - model version username - current username hostname - hostname brnch_retain_casename - retain branch casename info_debug - debug level bfbflag - bit for bit flag drv_threading - turn on variable threading in driver samegrid_ao - atm and ocean samegrid flag samegrid_al - atm and land samegrid flag samegrid_ro - runoff and ocean samegrid flag eps_frac - domain checking fraction tolerance eps_amask - domain checking atm/lnd mask tolerance eps_agrid - domain checking atm/lnd grid tolerance eps_aarea - domain checking atm/lnd area tolerance eps_omask - domain checking ocn/ice mask tolerance eps_ogrid - domain checking ocn/ice grid tolerance eps_oarea - domain checking ocn/ice area tolerance shr_map_dopole - polar correction in shr_map vect_map - vector mapping algorithm for vectors in a2o mapping flux_epbal - fresh water balance flux_albav - albedo averaging mode aoflux_grid - grid for atmocn flux calculation ocean_tight_coupling - tight ocean coupling flag perpetual - perpetual mode, untested perpetual_ymd, perpetual date, untested orb_mode - orbital mode orb_iyear_align - orbital model year alignment orb_iyear - orbital year orb_obliq - orbital obliquity orb_eccen - orbital eccentricity orb_mvelp - orbital vernal equinox atm_adiabatic - atm adiabatic mode atm_ideal_phys - atm ideal physics mode aqua_planet - aqua planet single_column - single column mode scmlon - single column longitude scmlat - single column latitude do_budgets - turn on budgets budget_inst - instantaneous budget flag budget_daily - daily budget flag budget_month - monthly budget flag budget_ann - annual budget flag budget_ltann - long term annual budget flag budget_ltend - long term end of run budget flag cpl_cdf64 - turn on 64bit netcdf files in driver restart_pfile - restart pointer file restart_file - restart filename timing_dir - timing output directory tchkpt_dir - timing checkpoint directory logFilePostFix - untested outPathRoot - untested histaux_a2x - driver aux history files for a2x fields histaux_a2x3hr - driver aux history files for a2x 3 hour fields histaux_a2x3hrp - driver aux history file for a2x 3 hour precip fields histaux_a2x24hr - driver aux history file for a2x daily fields histaux_l2x - driver aux history file for l2x fields histaux_r2x - driver aux history file for r2x fields seq_timemgr_inparm (drv_in namelist) calendar - calendar type start_ymd - start year/month/day start_tod - start time of day ref_ymd - reference year/month/day ref_tod - reference time of day curr_ymd - current year/month/day, obsolete curr_tod - current time of day, obsolete atm_cpl_dt - atm coupling period ocn_cpl_dt - ocn coupling period ice_cpl_dt - ice coupling period lnd_cpl_dt - lnd coupling period glc_cpl_dt - glc coupling period atm_cpl_offset - atm coupling offset lnd_cpl_offset - lnd coupling offset ocn_cpl_offset - ocn coupling offset ice_cpl_offset - ice coupling offset glc_cpl_offset - glc coupling offset stop_option - stop flag stop_n - stop value stop_ymd - stop date stop_tod - stop time of day restart_option - restart flag restart_n - restart value restart_ymd - restart date end_restart - restart at end of run history_option - driver snapshot history flag history_n - driver snapshot history value history_ymd - driver snapshot history date histavg_option - driver average history flag histavg_n - driver average history value histavg_ymd - driver average history date tprof_option - timing flag tprof_n - timing value tprof_ymd - timing date ccsm_pes (drv_in namelist) atm_ntasks - atm mpi tasks atm_rootpe - atm root task in global comm atm_pestride - atm mpi task stride atm_nthreads - atm threads per mpi task lnd_ntasks - lnd mpi tasks lnd_rootpe - lnd root task in global comm lnd_pestride - lnd mpi task stride lnd_nthreads - lnd threads per mpi task ice_ntasks - ice mpi tasks ice_rootpe - ice root task in global comm ice_pestride - ice mpi task stride ice_nthreads - ice threads per mpi task ocn_ntasks - ocn mpi tasks ocn_rootpe - ocn root task in global comm ocn_pestride - ocn mpi task stride ocn_nthreads - ocn threads per mpi task glc_ntasks - glc mpi tasks glc_rootpe - glc root task in global comm glc_pestride - glc mpi task stride glc_nthreads - glc threads per mpi task cpl_ntasks - cpl mpi tasks cpl_rootpe - cpl root task in global comm cpl_pestride - cpl mpi task stride cpl_nthreads - cpl threads per mpi task prof_inparm (drv_in namelist) profile_disable profile_barrier profile_single_file profile_global_stats profile_depth_limit profile_detail_limit profile_outpe_num profile_outpe_stride profile_timer profile_papi_enable pio_inparm (drv_in namelist) pio_async_interface - future asynchronous IO capability (not currently supported) pio_numtasks - number of io tasks in pio used generically, component based value takes precedent pio_root - io task root in pio used generically, component based value takes precedent pio_stride - stride of tasks in pio used generically, component based value takes precedent pio_typename - io type in pio used generically, component based value takes precedent pio_debug_level - debug level for pio cpl_pio_numtasks - number of io tasks in pio for coupler cpl_pio_root - io task root in pio for coupler cpl_pio_stride - stride of tasks in pio for coupler cpl_pio_typename - io type in pio for coupler atm_pio_numtasks - number of io tasks in pio for atmosphere atm_pio_root - io task root in pio for atmosphere atm_pio_stride - stride of tasks in pio for atmosphere atm_pio_typename - io type in pio for atmosphere lnd_pio_numtasks - number of io tasks in pio for land lnd_pio_root - io task root in pio for land lnd_pio_stride - stride of tasks in pio for land lnd_pio_typename - io type in pio for land ice_pio_numtasks - number of io tasks in pio for ice ice_pio_root - io task root in pio for ice ice_pio_stride - stride of tasks in pio for ice ice_pio_typename - io type in pio for ice ocn_pio_numtasks - number of io tasks in pio for ocean ocn_pio_root - io task root in pio for ocean ocn_pio_stride - stride of tasks in pio for ocean ocn_pio_typename - io type in pio for ocean glc_pio_numtasks - number of io tasks in pio for land ice glc_pio_root - io task root in pio for land ice glc_pio_stride - stride of tasks in pio for land ice glc_pio_typename - io type in pio for land ice seq_maps.rc (input filename) seq_maps (not a Fortran namelist) atm2ocnFmapname - atm to ocn flux mapping file atm2ocnFmaptype - atm to ocn flux mapping type atm2ocnSmapname - atm to ocn state mapping file atm2ocnSmaptype - atm to ocn state mapping type ocn2atmFmapname - ocn to atm flux mapping file ocn2atmFmaptype - ocn to atm flux mapping type ocn2atmSmapname - ocn to atm state mapping file ocn2atmSmaptype - ocn to atm state mapping type atm2iceFmapname - atm to ice flux mapping file atm2iceFmaptype - atm to ice flux mapping type atm2iceSmapname - atm to ice state mapping file atm2iceSmaptype - atm to ice state mapping type ice2atmFmapname - ice to atm flux mapping file ice2atmFmaptype - ice to atm flux mapping type ice2atmSmapname - ice to atm state mapping file ice2atmSmaptype - ice to atm state mapping type atm2lndFmapname - atm to lnd flux mapping file atm2lndFmaptype - atm to lnd flux mapping type atm2lndSmapname - atm to lnd state mapping file atm2lndSmaptype - atm to lnd state mapping type lnd2atmFmapname - lnd to atm flux mapping file lnd2atmFmaptype - lnd to atm flux mapping type lnd2atmSmapname - lnd to atm state mapping file lnd2atmSmaptype - lnd to atm state mapping type rof2ocnFmapname - rof to ocn flux mapping file rof2ocnFmaptype - rof to ocn flux mapping type The cpl_modelio.nml file sets the filename for the primary standard output file. Existance is largely historical. The cpl.buildnml.csh script actually generates the _modelio.nml files for all components. diri (char) unused diro (char) unused logfile (char) the name of the logfile for the component. default="", required but set automatically by ccsm scripts The drv_in input file contains several different namelist groups associated with general options, time manager options, pe layout, timing output, and parallel IO settings. The different groups are seq_infodata_inparm, seq_timemgr_inparm, ccsm_pes, prof_inparm, and pio_inparm. These namelist are associated with some general driver/coupler options. aoflux_grid (char) untested aqua_planet (log) turns on aqua planet mode. this mode is only available in limited configurations. default=false. atm_adiabatic (log) turns on atm model adiabatic mode. this mode is only available in limited configurations. default=false. atm_ideal_phys (log) turns on atm ideal physics mode. this mode is only available in limited configurations. default=false. bfbflag (log) turns on bfb option in coupler which produce bfb results in the coupler on different processor counts. set by BFBFLAG in env_run.xml, default=false. brnch_retain_casename (log) information about whether the base casename can be reused for the branch casename. budget_ann (int) sets the diagnotics level of the annual budgets. [0,1,2,3], 0=none, 1=+net summary budgets, 2=+detailed lnd/ocn/ice component budgets, 3=+detailed atm budgets, set by BUDGET_ANNUAL in env_run.xml. default=1 budget_daily (int) sets the diagnotics level of the daily budgets. [0,1,2,3], 0=none, 1=+net summary budgets, 2=+detailed lnd/ocn/ice component budgets, 3=+detailed atm budgets, set by BUDGET_DAILY in env_run.xml. default=0 budget_inst (int) sets the diagnotics level of the instantaneous budgets. [0,1,2,3], 0=none, 1=+net summary budgets, 2=+detailed lnd/ocn/ice component budgets, 3=+detailed atm budgets, set by BUDGET_INST in env_run.xml. default=0 budget_ltann (int) sets the diagnotics level of the longterm budgets written at the end of the year. [0,1,2,3], 0=none, 1=+net summary budgets, 2=+detailed lnd/ocn/ice component budgets, 3=+detailed atm budgets, set by BUDGET_LONGTERM_EOY in env_run.xml. default=1 budget_ltend (int) sets the diagnotics level of the longterm budgets written at the end of each run. [0,1,2,3], 0=none, 1=+net summary budgets, 2=+detailed lnd/ocn/ice component budgets, 3=+detailed atm budgets, set by BUDGET_LONGTERM_STOP in env_run.xml. default=0 budget_month (int) sets the diagnotics level of the monthy budgets. [0,1,2,3], 0=none, 1=+net summary budgets, 2=+detailed lnd/ocn/ice component budgets, 3=+detailed atm budgets, set by BUDGET_MONTHLY in env_run.xml. default=1 case_desc (char) case description. set by CASESTR in env_run.xml. case_name (char) case name. set by CASE in env_case.xml. cpl_cdf64 (log) flag for 64 bit netcdf files for the cpl component, may or may not be used by the cpl component depending on cpl implementation. default=false do_budgets (log) turns on budget calculation and budget output, set by BUDGETS in env_run.xml. default=false drv_threading (log) turn on run time control of threading per pe per component by the driver. set by DRV_THREADING in env_run.xml. default=false eps_aarea (r8) variable associated with error checking the atm/lnd areas, absolute differences, set by EPS_AAREA in env_run.xml. default=9.0e-07 eps_agrid (r8) variable associated with error checking the atm/lnd longitudes and latitudes, absolute differences, set by EPS_AGRID in env_run.xml. default=1.0e-12 eps_amask (r8) variable associated with error checking the atm/lnd mask, absolute differences, set by EPS_AMASK in env_run.xml. default=1.0e-13 eps_frac (r8) variable associated with error checking the domain fractions, absolute differences. set by EPS_FRAC in env_run.xml. default=1.0e-02 eps_oarea (r8) variable associated with error checking the ocn/ice areas, absolute differences, set by EPS_OAREA in env_run.xml. default=1.0e-01 eps_ogrid (r8) variable associated with error checking the ocn/ice longitudes and latitudes, absolute differences, set by EPS_OGRID in env_run.xml. default=1.0e-02 eps_omask (r8) variable associated with error checking the ocn/ice mask, absolute differences, set by EPS_OMASK in env_run.xml. default=1.0e-06 flux_albav (log) turns on albedo averaging. set by CPL_ALBAV in env_run.xml, default=false flux_epbal (char) turns on fresh water balance in coupler, set by CPL_EPBAL in env_run.xml, default=false histaux_a2x (log) turns on coupler history stream for instantaneous atm to coupler fields. default=false histaux_a2x24hr (log) turns on coupler history stream for daily average atm to coupler fields. default=false histaux_a2x3hr (log) turns on coupler history stream for 3-hour average atm to coupler fields. default=false histaux_a2x3hrp (log) turns on coupler history stream for 3-hour average atm to coupler precip fields. default=false histaux_l2x (log) turns on coupler history stream for instantaneous land to coupler fields. default=false histaux_r2x (log) turns on coupler history stream for instantaneous runoff to coupler fields. default=false hostname (char) hostname information, set by MACH in env_case.xml info_debug (int) debug level in driver/coupler, set by INFO_DBUG in env_run.xml, default=1. logFilePostFix (char) untested model_version (char) model version documentation, set by CCSM_REPOTAG in env_run.xml vect_map(char) turns on the vector mapping option for u and v vector mapping between atm and ocean grids in the coupler. the options are none, npfix, cart3d, cart3d_diag, cart3d_uvw, and cart3d_uvw_diag. the none option results in scalar mapping independently for the u and v field which tends to generate large errors near the poles. npfix is the traditional option where the vectors are corrected on the ocean grid north of the last latitude line of the atmosphere grid. the cart3d options convert the east (u) and north (v) vectors to 3d (x,y,z) triplets, and maps those fields before converting back to the east (u) and north (v) directions. the cart3d ignores the resuling "w" velocity. the cart3d_uvw calculates the resulting u and v vectors by preserving the total "u,v,w" speed and the angle of the (u,v) vector. the _diag options just add diagnotics to the log file about the vector mapping. set by VECT_MAP in env_run.xml default=npfix ocean_tight_coupling (log) turns on ocean tight coupling flag which forces the ocean to coupling at the same time as the other surface models. by default, there is a lag of one coupler timestep in addition to any difference in coupling frequency to accomodate the ability to run the ocean concurrently with the rest of the system for performance reasons. set by OCN_TIGHT_COUPLING in env_run.xml. default=false orb_mode (char) orbital model setting. this sets how the orbital mode will be configured. "fixed_year" uses the orb_iyear and other orb inputs are ignored. In this mode, the orbital parameters are constant and based on the year. "variable_year" uses the orb_iyear and orb_iyear_align. In this mode, the orbital parameters vary as the model year advances and the model year orb_iyear_align has the equivalent orbital year of orb_iyear. "fixed_parameters" uses the orb_eccen, orb_mvelp, and orb_obliq to set the orbital parameters which then remain constant through the model integration. set by ORBITAL_MODE in env_run.xml. [fixed_year, variable_year, fixed_parameters] default='fixed_year'. orb_iyear (int) year of orbit, used when orb_mode is fixed_year or variable_year. set by ORBITAL_YEAR in env_run.xml. default=unset orb_iyear_align (int) model year associated with orb_iyear when orb_mode is variable_year. set by ORBITAL_YEAR_ALIGN in env_run.xml. default=unset orb_eccen (r8) eccentricity of orbit, used when orb_mode is fixed_parameters. default=unset orb_mvelp (r8) location of vernal equinox in longitude degrees, used when orb_mode is fixed_parameters. default=unset orb_obliq (r8) obliquity of orbit in degrees, used when orb_mode is fixed_parameters. default=unset outPathRoot (char) untested perpetual (log) flag to turn on perpetual mode, default=false (untested?) perpetual_ymd (int) ymd date of perpetual mode, default=unset (untested?) restart_file (char) driver restart file. if set, this overwrites anything in the restart_pfile file. default=unset and uses filename in restart_pfile. restart_pfile (char) restart pointer filename. default="rpointer.drv" samegrid_al (log) tells the coupler to treat the atm and land grids as "the same". automatically set by comparison of ATM_GRID and LND_GRID set in env_case.xml. default=true samegrid_ao (log) tells the coupler to treat the atm and ocean grids as "the same". automatically set by comparison of ATM_GRID and OCN_GRID set in env_case.xml. default=true samegrid_ro (log) tells the coupler to treat the runoff and ocean grids as "the same". automatically set by comparison of LND_GRID and OCN_GRID set in env_case.xml. default=false shr_map_dopole (log) turns on special polar mapping feature in shr_map_mod. set by SHR_MAP_DOPOLE in env_run.xml. default=true scmlon (r8) grid point longitude associated with single column mode. set by PTS_LON in env_run.xml. scmlat (r8) grid point latitude associated with single column mode. set by PTS_LAT in env_run.xml. single_column (log) turns on single column mode. set by PTS_MODE in env_case.xml, default=false start_type (char) mode to start the run up, [startup,branch,continue], set by RUN_TYPE in env_conf.xml timing_dir (char) location of timing output. tchkpt_dir (char) location of timing checkpoint output. username (char) username documentation, set by CCSMUSER in env_run.xml This namelist is associated with time manager options. atm_cpl_dt (int) atm coupling timestep in seconds. set via ATM_NCPL in env_run.xml. ATM_NCPL is the number of times the atm is coupled per day. atm_cpl_offset (int) controls phasing of the coupling. offset in seconds. default=0. calendar (char) calendar in use. [NO_LEAP, GREOGORIAN]. default="NO_LEAP". set by CALENDAR in env_run.xml curr_tod (int) untested curr_ymd (int) untested end_restart (log) forces a restart write at the end of the run in addition to any setting associated with rest_option. default=true. this setting will be set to false if restart_option is none or never. glc_cpl_dt (int) glc coupling timestep in seconds. set via GLC_NCPL in env_run.xml. GLC_NCPL is the number of times the glc is coupled per day. glc_cpl_offset (int) controls phasing of the coupling. offset in seconds. default=0. history_n (int) number associated with history_option. default=-1. set by HIST_N in env_run.xml. history_option (char) coupler history snapshot option. see stop_option above. default="never". set by HIST_OPTION in env_run.xml. history_ymd (int) date associated with history_option date. yyyymmdd format. default=-1. set by HIST_DATE in env_run.xml. histavg_n (int) number associated with histavg_option. default=-1. set by AVGHIST_N in env_run.xml. histavg_option (char) coupler time average history option. see stop_option above. defaults="never". set by AVGHIST_OPTION in env_run.xml. histavg_ymd (int) date associated with histavg_option date. yyyymmdd format. default=-1. set by AVGHIST_DATE in env_run.xml. ice_cpl_dt (int) ice coupling timestep in seconds. set via ICE_NCPL in env_run.xml. ICE_NCPL is the number of times the ice is coupled per day. ice_cpl_offset (int) controls phasing of the coupling. offset in seconds. default=0. lnd_cpl_dt (int) lnd coupling timestep in seconds. set via LND_NCPL in env_run.xml. LND_NCPL is the number of times the lnd is coupled per day. lnd_cpl_offset (int) controls phasing of the coupling. offset in seconds. default=0. ocn_cpl_dt (int) ocn coupling timestep in seconds. set via OCN_NCPL in env_run.xml. OCN_NCPL is the number of times the ocn is coupled per day. ocn_cpl_offset (int) controls phasing of the coupling. offset in seconds. default=0. ref_tod (int) reference start time of day in seconds. overwritten if restart file is read. if unset, will use start_tod. default=0 ref_ymd (int) reference start date. overwritten if restart file is read. format yyyymmdd. if unset, will use start_ymd. default=0 restart_n (int) number associated with restart_option. default=-1. set by REST_N in env_run.xml restart_option (char) model restart option. all components write restarts using this setting. see stop_option above. default="yearly". set by REST_OPTION in env_run.xml restart_ymd (int) date associated with stop_option date. yyyymmdd format. default=-1. set by REST_DATE in env_run.xml start_tod (int) initial start time of day in seconds. overwritten if restart file is read. default=0 start_ymd (int) initial start date. overwritten if restart file is read. format yyyymmdd. default=0, must be set by user on initial runs. stop_n (int) number associated with stop_option. default=-1. set by STOP_N in env_run.xml stop_option (char) model stop option used in conjuction with stop_n, stop_ymd, and stop_tod. [none,never,nsteps,nstep,nseconds,nsecond,nminutes,nminute,nhours,nhour,ndays,nday,nmonths,nmonth,nyears,nyear,date,ifdays0,end] default="". set by STOP_OPTION in env_run.xml stop_tod (int) time of day in seconds associated with stop_option and stop_ymd. default=0. stop_ymd (int) date associated with stop_option. model will stop when stop_option and stop_n OR when stop_ymd and stop_tod is reached. yyyymmdd format. default=-1. set by STOP_DATE in env_run.xml tprof_n (int) number associated with tprof_option. default=-1. set by TPROF_N in env_run.xml. tprof_option (char) timer profiling option. see stop_option above. default="never". set by TPROF_OPTION in env_run.xml. tprof_ymd (int) date associated with tprof_option date. yyyymmdd format. default=-1. set by TPROF_DATE in env_run.xml. This namelist is associated with the pe layout. atm_ntasks (int) the number of mpi tasks assigned to the atm components. set by NTASKS_ATM in env_mach_pes.xml. default=all_pes atm_nthreads (int) the number of threads per mpi task for the atm component. set by NTHRDS_ATM in env_mach_pes.xml. default=1 atm_pestride (int) the mpi global processors stride associated with the mpi tasks for the atm component. set by PSTRID_ATM in env_mach_pes.xml. default=1 atm_rootpe (int) the global mpi task rank of the root processor assigned to the atm component. set by ROOTPE_ATM in env_mach_pes.xml. default=0 cpl_ntasks (int) the number of mpi tasks assigned to the cpl components. set by NTASKS_CPL in env_mach_pes.xml. default=all_pes cpl_nthreads (int) the number of threads per mpi task for the cpl component. set by NTHRDS_CPL in env_mach_pes.xml. default=1 cpl_pestride (int) the mpi global processors stride associated with the mpi tasks for the cpl component. set by PSTRID_CPL in env_mach_pes.xml. default=1 cpl_rootpe (int) the global mpi task rank of the root processor assigned to the cpl component. set by ROOTPE_CPL in env_mach_pes.xml. default=0 glc_ntasks (int) the number of mpi tasks assigned to the glc components. set by NTASKS_GLC in env_mach_pes.xml. default=all_pes glc_nthreads (int) the number of threads per mpi task for the glc component. set by NTHRDS_GLC in env_mach_pes.xml. default=1 glc_pestride (int) the mpi global processors stride associated with the mpi tasks for the glc component. set by PSTRID_GLC in env_mach_pes.xml. default=1 glc_rootpe (int) the global mpi task rank of the root processor assigned to the glc component. set by ROOTPE_GLC in env_mach_pes.xml. default=0 ice_ntasks (int) the number of mpi tasks assigned to the ice components. set by NTASKS_ICE in env_mach_pes.xml. default=all_pes ice_nthreads (int) the number of threads per mpi task for the ice component. set by NTHRDS_ICE in env_mach_pes.xml. default=1 ice_pestride (int) the mpi global processors stride associated with the mpi tasks for the ice component. set by PSTRID_ICE in env_mach_pes.xml. default=1 ice_rootpe (int) the global mpi task rank of the root processor assigned to the ice component. set by ROOTPE_ICE in env_mach_pes.xml. default=0 lnd_ntasks (int) the number of mpi tasks assigned to the lnd components. set by NTASKS_LND in env_mach_pes.xml. default=all_pes lnd_nthreads (int) the number of threads per mpi task for the lnd component. set by NTHRDS_LND in env_mach_pes.xml. default=1 lnd_pestride (int) the mpi global processors stride associated with the mpi tasks for the lnd component. set by PSTRID_LND in env_mach_pes.xml. default=1 lnd_rootpe (int) the global mpi task rank of the root processor assigned to the lnd component. set by ROOTPE_LND in env_mach_pes.xml. default=0 ocn_ntasks (int) the number of mpi tasks assigned to the ocn components. set by NTASKS_OCN in env_mach_pes.xml. default=all_pes ocn_nthreads (int) the number of threads per mpi task for the ocn component. set by NTHRDS_OCN in env_mach_pes.xml. default=1 ocn_pestride (int) the mpi global processors stride associated with the mpi tasks for the ocn component. set by PSTRID_OCN in env_mach_pes.xml. default=1 ocn_rootpe (int) the global mpi task rank of the root processor assigned to the ocn component. set by ROOTPE_OCN in env_mach_pes.xml. default=0 This namelist is associated with timing profile and is namelist for the perf_mod timing utility. profile_barrier (log) profile_depth_limit (int) profile_detail_limit (int) profile_disable (log) profile_global_stats (log) profile_outpe_num (int) profile_outpe_stride (int) profile_papi_enable (log) profile_single_file (log) profile_timer (int) This namelist is associated with pio setting for the system as a whole. Generic and component specific settings are available. If component specific values are not set, then the generic ones will be used for that component. PIO depends on the local availability of external libraries including netcdf (version 3 or version 4) or pnetcdf. The pio setup values are passed to components via the coupling interfaces. pio_async_interface (log) future asynchronous IO capability (not currently supported). default=.false. pio_numtasks (int) number of io tasks in pio used generically, component based value takes precedent. default=unset pio_root (int) io task root in pio used generically, component based value takes precedent. default=unset pio_stride (int) stride of tasks in pio used generically, component based value takes precedent. default=unset pio_typename (char) io type in pio used generically, component based value takes precedent. [netcdf, pnetcdf, netcdf4p, netcdf4c] default=unset pio_debug_level (int) debug level for pio. default=0 cpl_pio_numtasks (int) number of io tasks in pio for coupler. default=unset cpl_pio_root (int) io task root in pio for coupler. default=unset cpl_pio_stride (int) stride of tasks in pio for coupler. default=unset cpl_pio_typename (char) io type in pio for coupler. [nothing, netcdf, pnetcdf, netcdf4p, netcdf4c] default='nothing' atm_pio_numtasks (int) number of io tasks in pio for atmosphere. default=unset atm_pio_root (int) io task root in pio for atmosphere. default=unset atm_pio_stride (int) stride of tasks in pio for atmosphere. default=unset atm_pio_typename (char) io type in pio for atmosphere. [nothing, netcdf, pnetcdf, netcdf4p, netcdf4c] default='nothing' lnd_pio_numtasks (int) number of io tasks in pio for land. default=unset lnd_pio_root (int) io task root in pio for land. default=unset lnd_pio_stride (int) stride of tasks in pio for land. default=unset lnd_pio_typename (char) io type in pio for land. [nothing, netcdf, pnetcdf, netcdf4p, netcdf4c] default='nothing' ice_pio_numtasks (int) number of io tasks in pio for ice. default=unset ice_pio_root (int) io task root in pio for ice. default=unset ice_pio_stride (int) stride of tasks in pio for ice. default=unset ice_pio_typename (char) io type in pio for ice. [nothing, netcdf, pnetcdf, netcdf4p, netcdf4c] default='nothing' ocn_pio_numtasks (int) number of io tasks in pio for ocean. default=unset ocn_pio_root (int) io task root in pio for ocean. default=unset ocn_pio_stride (int) stride of tasks in pio for ocean. default=unset ocn_pio_typename (char) io type in pio for ocean. [nothing, netcdf, pnetcdf, netcdf4p, netcdf4c] default='nothing' glc_pio_numtasks (int) number of io tasks in pio for land ice. default=unset glc_pio_root (int) io task root in pio for land ice. default=unset glc_pio_stride (int) stride of tasks in pio for land ice. default=unset glc_pio_typename (char) io type in pio for land ice. [nothing, netcdf, pnetcdf, netcdf4p, netcdf4c] default='nothing' The seq_maps.rc file specifies the mapping files for the configuration and is generated by the cpl.buildnml.csh file. It is NOT a Fortran namelist file but the format should be relatively clear from the default settings. atm2ocnFmapname (char) The atm to ocn mapping file for flux fields. Set by MAP_A2OF_FILE in env_conf.xml idmap is a special string used here to specify that just a copy is required. atm2ocnFmaptype (char) The type of mapping desired, either "source" or "destination" mapping. X is associated with rearrangement of the source grid to the destination grid and then local mapping. Y is associated with mapping on the source grid and then rearrangement and sum to the destination grid. atm2ocnSmapname (char) see atm2ocnFmapname above but for atm to ocn scalar fields using env variable MAP_A2OS_FILE atm2ocnSmaptype (char) see atm2ocnFmaptype above ocn2atmFmapname (char) see atm2ocnFmapname above but for ocn to atm flux fields using env variable MAP_O2AF_FILE ocn2atmFmaptype (char) see atm2ocnFmaptype above ocn2atmSmapname (char) see atm2ocnFmapname above but for ocn to atm scalar fields using env variable MAP_O2AS_FILE ocn2atmSmaptype (char) see atm2ocnFmaptype above atm2iceFmapname (char) see atm2ocnFmapname above but for atm to ice flux fields using env variable MAP_A2IF_FILE atm2iceFmaptype (char) see atm2ocnFmaptype above atm2iceSmapname (char) see atm2ocnFmapname above but for atm to ice scalar fields using env variable MAP_A2IS_FILE atm2iceSmaptype (char) see atm2ocnFmaptype above ice2atmFmapname (char) see atm2ocnFmapname above but for ice to atm flux fields using env variable MAP_I2AF_FILE ice2atmFmaptype (char) see atm2ocnFmaptype above ice2atmSmapname (char) see atm2ocnFmapname above but for ice to atm scalar fields using env variable MAP_I2AS_FILE ice2atmSmaptype (char) see atm2ocnFmaptype above atm2lndFmapname (char) see atm2ocnFmapname above but for atm to lnd flux fields using env variable MAP_A2LF_FILE atm2lndFmaptype (char) see atm2ocnFmaptype above atm2lndSmapname (char) see atm2ocnFmapname above but for atm to lnd scalar fields using env variable MAP_A2LS_FILE atm2lndSmaptype (char) see atm2ocnFmaptype above lnd2atmFmapname (char) see atm2ocnFmapname above but for lnd to atm flux fields using env variable MAP_L2AF_FILE lnd2atmFmaptype (char) see atm2ocnFmaptype above lnd2atmSmapname (char) see atm2ocnFmapname above but for lnd to atm scalar fields using env variable MAP_L2AS_FILE lnd2atmSmaptype (char) see atm2ocnFmaptype above rof2ocnFmapname (char) see atm2ocnFmapname above but for runoff to ocean fields using env variable MAP_R2O_FILE_R05, MAP_R2O_FILE_R019, or MAP_R2O_FILE_RX1 depending on the configuration. rof2ocnFmaptype (char) see atm2ocnFmaptype above