[CIG-SHORT] pylith install error

[Charles Williams]

Hi Birendra,

I’m having difficulty figuring out what you are trying to represent here.  It appears that you are using:

1.  Gravitational stresses.
2.  Initial stresses (presumably equal to the gravitational stresses).
3.  Normal tractions on the top and right boundaries.

Is this correct?

Actually, looking a bit more, these stresses don’t seem to balance.  You have nonzero normal stresses on your top boundary (they should be zero), as well as at the top of your right side.  Also, you have nonzero initial stresses at the top of your mesh, which won’t balance with gravitational stresses.  It appears you have an inconsistent stress state.

Cheers,
Charles


On 22/05/2014, at 3:24 pm, Birendra jha <bjha7333 at yahoo.com> wrote:

> Hello Pylith developers and users,
> 
> Can you please help me with this issue of non-convergence of the nonlinear solver? I attached the simulations files in my earlier email. Why is pylith not able to converge to zero displacement solution at t=0 when initial stresses, boundary tractions, and the body forces are supposed to balance out? I am using pylith-1.9.0 installed from the binary.
> 
> Thanks and best regards
> Birendra
> --------------------------------------------
> On Wed, 5/21/14, Birendra jha <bjha7333 at yahoo.com> wrote:
> 
> Subject: Re: [CIG-SHORT] pylith install error
> To: cig-short at geodynamics.org
> Date: Wednesday, May 21, 2014, 8:07 PM
> 
> Hi Charles, Matt,
> 
> I tried running the attached problem in pylith-1.9.0 and the
> nonlinear solver does not converge at t=0. This problem has
> a dynamic fault but there should be no slip at t=0 because
> the initial stresses, boundary tractions, and gravity should
> result in zero displacement at t=0. I don't understand why I
> don't get it. Can you please take a look? This runs in few
> seconds.
> 
> Thanks and regards
> Birendra
>   
> 
> --------------------------------------------
> On Wed, 5/21/14, Charles Williams <willic3 at gmail.com>
> wrote:
> 
>  Subject: Re: [CIG-SHORT] pylith install error
>  To: cig-short at geodynamics.org
>  Date: Wednesday, May 21, 2014, 1:56 PM
> 
>  Something is strange. 
>  Do you not have these symbols in libdl?
> 
>  Also, why are you using pylith-1.8.0?
> 
>  Charles
> 
> 
>  On 21/05/2014, at 8:00 pm, Birendra jha <bjha7333 at yahoo.com>
>  wrote:
> 
>> Hi
>> 
>> I am trying to
>  install pylith-1.8.0 and I am getting the following error
>  during make:
>> 
>> 
>  /bin/bash ../../libtool --tag=CXX   --mode=link
>  g++  -g -O2 -DMPICH_IGNORE_CXX_SEEK -ldl
>  -L/home/bjha/pylith-1.8.0/lib  -o DllPlugInTester
>  DllPlugInTester.o CommandLineParser.o
>  ../../src/cppunit/libcppunit.la -lm
>> 
>  mkdir .libs
>> g++ -g -O2
>  -DMPICH_IGNORE_CXX_SEEK -o .libs/DllPlugInTester
>  DllPlugInTester.o CommandLineParser.o  -ldl
>  -L/home/bjha/pylith-1.8.0/lib
>  ../../src/cppunit/.libs/libcppunit.so -lm  -Wl,--rpath
>  -Wl,/home/bjha/pylith-1.8.0/lib
>> 
>  ../../src/cppunit/.libs/libcppunit.so: undefined reference
>  to `dlsym'
>> 
>  ../../src/cppunit/.libs/libcppunit.so: undefined reference
>  to `dlopen'
>> 
>  ../../src/cppunit/.libs/libcppunit.so: undefined reference
>  to `dlclose'
>> collect2: ld returned
>  1 exit status
>> make[5]: ***
>  [DllPlugInTester] Error 1
>> make[5]:
>  Leaving directory
>  `/home/bjha/build/pylith-1.8.0/cppunit-build/src/DllPlugInTester'
>> make[4]: *** [all-recursive] Error 1
>> make[4]: Leaving directory
>  `/home/bjha/build/pylith-1.8.0/cppunit-build/src'
>> make[3]: *** [all-recursive] Error 1
>> make[3]: Leaving directory
>  `/home/bjha/build/pylith-1.8.0/cppunit-build'
>> make[2]: *** [cppunit] Error 2
>> make[2]: Leaving directory
>  `/home/bjha/build/pylith-1.8.0'
>> 
>  make[1]: *** [installed_cppunit] Error 2
>> make[1]: Leaving directory
>  `/home/bjha/build/pylith-1.8.0'
>> 
>  make: *** [installed_pylith] Error 2
>> 
> 
>> 
>> I have attached
>  the log file.
>> 
>> 
>  Thanks
>> 
>  Birendra<config.log>_______________________________________________
>> CIG-SHORT mailing list
>> CIG-SHORT at geodynamics.org
>> http://lists.geodynamics.org/cgi-bin/mailman/listinfo/cig-short
> 
>  Charles A. Williams
>  Scientist
>  GNS Science
>  1 Fairway Drive, Avalon
>  PO Box
>  30368
>  Lower Hutt  5040
>  New
>  Zealand
>  ph (office): 0064-4570-4566
>  fax (office): 0064-4570-4600
>  C.Williams at gns.cri.nz
> 
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Charles A. Williams
Scientist
GNS Science
1 Fairway Drive, Avalon
PO Box 30368
Lower Hutt  5040
New Zealand
ph (office): 0064-4570-4566
fax (office): 0064-4570-4600
C.Williams at gns.cri.nz