Hello Dr. Giulian and Regcnet,

I have problem with running dust when I set ichem=1,

regcmMPI doesnt running and  error happend.

      I'm running a dust simulation with the RegCM4.1 and I put the
 following selection in the name-list:

 ,
 &dimparam
 iy     = 50,
 jx     = 50,
 kz     = 18,
 nsg    = 1,
 /
 &geoparam
 iproj = 'LAMCON',
 ds = 60.0,
 ptop = 5.0,
 clat = 32.00,
 clon = 45.50,
 plat = 45.39,
 plon = 13.48,
 truelatl = 32.0,
 truelath = 60.0,
 i_band = 0,
 /
 &terrainparam
 domname = 'REGCM4',
 ntypec = 30,
 ntypec_s = 2,
 smthbdy = .false.,
 lakedpth = .false.,
 fudge_lnd   = .false.,
 fudge_lnd_s = .false.,
 fudge_tex   = .false.,
 fudge_tex_s = .false.,
 h2opct = 75.,
 dirter = '/home/karami/RegCM42/dust/input',
 inpter = '/home/karami/home/student/regcm/regdata',
 /
 &ioparam
 ibyte = 4,
 /
 &debugparam
 debug_level =0 ,
 dbgfrq = 3,
 /
 &boundaryparam
 nspgx  = 12,
 nspgd  = 12,
 /
 &modesparam
 nsplit = 2,
 /
 &globdatparam
 ibdyfrq = 6,
 ssttyp = 'OI_WK',
 dattyp = 'NNRP1',
 gdate1 = 2005080800,
 gdate2 = 2005091500,
 dirglob = '/home/karami/RegCM42/dust/input',
 inpglob = '/home/karami/home/student/regcm/regdata',
 /
 &globwindow
 lat0 = 12.0
 lat1 = 42.0
 lon0 = 10.0
 lon1 = 60.0
 /
 &aerosolparam
 aertyp = 'AER00D1'
 ntr = 4,
 nbin = 4,
 /
 &restartparam
 ifrest  = .false. ,
 mdate0  = 2005080800,
 mdate1  = 2005080800,
 mdate2  = 2005091200,
 /
 &timeparam
 dtrad   =    30.,
 dtabem  =    18.,
 dtsrf   =    600,
 dt      =   150.,
 /
 &outparam
 ifsave  = .true. ,
   savfrq  =    48.,
 ifatm  = .true. ,
   atmfrq  =     6.,
 ifrad   = .true. ,
   radfrq  =    6.,
 ifsrf   = .true. ,
 ifsub   = .true. ,
   srffrq  =     3.,
 ifchem  = .true.,
   chemfrq =     6.,
 dirout='/home/karami/RegCM42/dust/output'
 /
 &physicsparam
 iboudy  =          5,
 ibltyp  =          1,
 icup    =          4,
   igcc    =          1,
 ipptls  =          1,
 iocnflx =          2,
 ipgf    =         0,
 iemiss  =         0,
 lakemod =          0,
 ichem   =          1,
 scenario = 'RCP4.5',
 idcsst = 0,
 iseaice = 0,
 idesseas = 1,
 iconvlwp = 1,
 /
 &subexparam
 qck1land =   .250E-03,
 qck1oce  =   .250E-03,
 cevap    =   .100E-02,
 caccr    =      3.000,
 cftotmax =      0.75,
 /
 &grellparam
 /
 &emanparam
 elcrit  = 0.0011D0,
 coeffr  = 1.0D0,
 /
  &chemparam
 idirect   =    1,
 inpchtrname  =   'DUST','DUST','DUST','DUST',
 inpchtrsol   =   0.20, 0.80 ,0.2,0.1,
 inpchtrdpv   =  0.0, 0.0,0.0,0.0,0.00,0.00,0.0,0.0,
 inpdustbsiz  =   0.1 ,0.5,0.2, 1.0,0.1,0.3,0.1,0.4,
/

 &clmparam
 dirclm = '/home/karami/RegCM42/dust/input',
 imask  = 1,
 clmfrq = 12.,
 /