On 10/11/07, mega octaviani <gorgeous_egha@yahoo.com> wrote:

Dear all,

I have tried to run a 60-km domain simulation (for
South East Asia region) using MIT-Emanuel scheme with
the following set in regcm.in:

$restartparam
ifrest  = .false. ,
idate0  = 1997010100,
idate1  = 1997010100,
idate2  = 1997011100,
nslice  =        120,
$
$timeparam
radfrq  =    30.,
abemh   =    18.,
abatm   =   600.,
dt      =   200.,
ibdyfrq =          6,
$
$outparam
ifsave  = .true. ,
  savfrq  =    24.,
iftape  = .true. ,
  tapfrq  =     1.,
ifrad   = .true. ,
  radisp  =     1.,
ifbat   = .true. ,
ifsub   = .true. ,
  batfrq  =     1.,
ifprt   = .false.,
  prtfrq  =    12.,
  kxout   =          6,
  jxsex   =         40,
iotyp   =          1,
ibintyp =          1,
ifchem  = .false.,
  chemfrq =     6.,
$
$physicsparam
iboudy  =          5,
ibltyp  =          1,
icup    = 2,
  igcc    = 1,
ipptls  =          1,
iocnflx = 2,
ipgf    =          0,
lakemod =          0,
ichem   =          0,
$
$subexparam
$
$grellparam
$
$emanparam
$
$chemparam
idirect   =    1,
chtrname  = '^@^@^@^@^@',
chtrsol   =   0.00,
chtrdpv   = 0.00000,0.00000,
dustbsiz  =  0.00, 0.00,
$

I got the program crashed at the 6th day of my
simulation with following error output:

forrtl: severe (174): SIGSEGV, segmentation fault
occurred
Image     PC     Routine    Line     Source
regcm  0805C8B4  Unknown    Unknown  Unknown
regcm  0805BEF2  Unknown    Unknown  Unknown
regcm  080ACEF4  Unknown    Unknown  Unknown
regcm  080A644B  Unknown    Unknown  Unknown
regcm  0804959A  Unknown    Unknown  Unknown
libc.so.6  00714E23  Unknown   Unknown  Unknown
regcm  080494D1  Unknown    Unknown  Unknown

Then, i rerun again by increasing timestep 20% from
the  original and still face this problem. So, please
give me any suggestion to solve my problem, how long
the minimum timestep should be for using this scheme?

I appreaciate all attention and help and thank you in
advance.

Kindly regards,

Mega Octaviani
MPhil Graduate Student
Joint Graduate School of Energy and Environment
(JGSEE)
King Mongkut University of Technology Thonburi (KMUTT)
126 Prachauthit Rd., Bangmod, Tungkru, Bangkok, 10140,
Thailand
Tel: +662470-7332 (Comp Lab); +6683292-1547 (Mobile)
Email: mega_st@jgsee.kmutt.ac.th; gorgeous_egha@yahoo.com

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