[CIG-SEISMO] some basic questions

[Dimitri Komatitsch]

Dear 胡元鑫,

I suggest you switch to SPECFEM3D_2.0, which is available on our SVN 
server (see the download instructions '"svn checkout ..." on the CIG web 
site). In SPECFEM3D_2.0 it is much easier to study other regions, not 
only Southern California.

If needed feel free to contact our main developer, Pieyre Le Loher 
<pieyre.le_loher at inria.fr>.

The segmentation fault error that you got is likely due to the fact that
the mesh you use is too big for your single PC and therefore some arrays 
cannot be allocated because the memory is full.

Best regards,

Dimitri Komatitsch.

On 06/15/2010 05:14 PM, 胡元鑫 wrote:
> Dear all,
> I am a beginner for SPECFEM3D-1.4.3 and have some basic questions.
> (1) I have only a PC to run SPECFEM3D-1.4.3.  If the code were to be
> compiled with " FC=ifort --without-mpi", which parameters in constants.h
> and Par_file would be changed? Is changing of the "NEX_XI" ,"NEX_ETA",
> "NPROC_XI", "NPROC_ETA" from 24, 24, 3, 3 to 8, 8, 1, 1 right?
> (2) Can I apply SPECFEM3D-1.4.3 to other region such as Wenchuan, China?
> Except for the DEM data "topo_bathy_final.dat", which parameters in
> constants.h and Par_file or data in other file would be modified?
> (3) I studied SPECFEM3D-1.4.3 according to user manual, but the error
> were got after running ./xspecfem3D. These error information is as follows:
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
> Image              PC        Routine            Line        Source
> xspecfem3D         080AA92D  gather_all_i_              76  serial.f90
> xspecfem3D         080A12B1  locate_source_            376
> locate_source.f90
> xspecfem3D         08054750  Unknown               Unknown  Unknown
> xspecfem3D         08049E32  MAIN__                     31
> program_specfem3D.f90
> xspecfem3D         08049DB1  Unknown               Unknown  Unknown
> libc.so.6          001EBBD6  Unknown               Unknown  Unknown
> xspecfem3D         08049CC1  Unknown               Unknown  Unknown
>
> Best regards
> Yuan-xin Hu
> 2010-6-15
>
>
>
>
>
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-- 
Dimitri Komatitsch - dimitri.komatitsch aT univ-pau.fr
Professor, University of Pau, Institut universitaire de France,
CNRS and INRIA Magique3D, France   http://www.univ-pau.fr/~dkomati1