[petsc-users] Problems running ex12.c
Miguel Angel Salazar de Troya
salazardetroya at gmail.com
Sat Mar 15 15:31:57 CDT 2014
Hello everybody
I keep trying to understand this example. I don't have any problems with
this example when I run it like this:
[salaza11 at maya PETSC]$ ./ex12 -bc_type dirichlet -interpolate
-petscspace_order 1 -variable_coefficient nonlinear -dim 2 -run_type full
-show_solution
Number of SNES iterations = 5
L_2 Error: 0.107289
Solution
Vec Object: 1 MPI processes
type: seq
0.484618
However, when I change the boundary conditions to Neumann, I get this error.
[salaza11 at maya PETSC]$ ./ex12 -bc_type neumann -interpolate 1
-petscspace_order 2 -variable_coefficient nonlinear -dim 2 -run_type full
-show_solution
[0]PETSC ERROR: --------------------- Error Message
--------------------------------------------------------------
[0]PETSC ERROR: Petsc has generated inconsistent data
[0]PETSC ERROR: Number of dual basis vectors 0 not equal to dimension 1
[0]PETSC ERROR: See http://
http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting.
[0]PETSC ERROR: Petsc Development GIT revision: v3.4.3-4776-gb18359b GIT
Date: 2014-03-04 10:53:30 -0600
[0]PETSC ERROR: ./ex12 on a linux-gnu-c-debug named maya by salaza11 Sat
Mar 15 14:28:05 2014
[0]PETSC ERROR: Configure options --download-mpich
--download-scientificpython --download-triangle --download-ctetgen
--download-chaco --with-c2html=0
[0]PETSC ERROR: #1 PetscDualSpaceSetUp_Lagrange() line 1763 in
/home/salaza11/petsc/src/dm/dt/interface/dtfe.c
[0]PETSC ERROR: #2 PetscDualSpaceSetUp() line 1277 in
/home/salaza11/petsc/src/dm/dt/interface/dtfe.c
[0]PETSC ERROR: #3 SetupElementCommon() line 474 in
/home/salaza11/workspace/PETSC/ex12.c
[0]PETSC ERROR: #4 SetupBdElement() line 559 in
/home/salaza11/workspace/PETSC/ex12.c
[0]PETSC ERROR: #5 main() line 755 in /home/salaza11/workspace/PETSC/ex12.c
[0]PETSC ERROR: ----------------End of Error Message -------send entire
error message to petsc-maint at mcs.anl.gov----------
application called MPI_Abort(MPI_COMM_WORLD, 77) - process 0
[unset]: aborting job:
application called MPI_Abort(MPI_COMM_WORLD, 77) - process 0
I honestly do not know much about using dual spaces in a finite element
context. I have been trying to find some material that could help me
without much success. I tried to modify the dual space order with the
option -petscdualspace_order but I kept getting errors. In particular, I
got this when I set it to 1.
[salaza11 at maya PETSC]$ ./ex12 -bc_type neumann -interpolate 1
-petscspace_order 2 -variable_coefficient nonlinear -dim 2 -run_type full
-show_solution -petscdualspace_order 1
[0]PETSC ERROR: PetscTrFreeDefault() called from PetscFESetUp_Basic() line
2492 in /home/salaza11/petsc/src/dm/dt/interface/dtfe.c
[0]PETSC ERROR: Block [id=0(32)] at address 0x1cc32f0 is corrupted
(probably write past end of array)
[0]PETSC ERROR: Block allocated in PetscFESetUp_Basic() line 2483 in
/home/salaza11/petsc/src/dm/dt/interface/dtfe.c
[0]PETSC ERROR: --------------------- Error Message
--------------------------------------------------------------
[0]PETSC ERROR: Memory corruption:
http://www.mcs.anl.gov/petsc/documentation/installation.html#valgrind
[0]PETSC ERROR: Corrupted memory
[0]PETSC ERROR: See http://
http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting.
[0]PETSC ERROR: Petsc Development GIT revision: v3.4.3-4776-gb18359b GIT
Date: 2014-03-04 10:53:30 -0600
[0]PETSC ERROR: ./ex12 on a linux-gnu-c-debug named maya by salaza11 Sat
Mar 15 14:37:34 2014
[0]PETSC ERROR: Configure options --download-mpich
--download-scientificpython --download-triangle --download-ctetgen
--download-chaco --with-c2html=0
[0]PETSC ERROR: #1 PetscTrFreeDefault() line 289 in
/home/salaza11/petsc/src/sys/memory/mtr.c
[0]PETSC ERROR: #2 PetscFESetUp_Basic() line 2492 in
/home/salaza11/petsc/src/dm/dt/interface/dtfe.c
[0]PETSC ERROR: #3 PetscFESetUp() line 2126 in
/home/salaza11/petsc/src/dm/dt/interface/dtfe.c
[0]PETSC ERROR: #4 SetupElementCommon() line 482 in
/home/salaza11/workspace/PETSC/ex12.c
[0]PETSC ERROR: #5 SetupElement() line 506 in
/home/salaza11/workspace/PETSC/ex12.c
[0]PETSC ERROR: #6 main() line 754 in /home/salaza11/workspace/PETSC/ex12.c
[0]PETSC ERROR: ----------------End of Error Message -------send entire
error message to petsc-maint at mcs.anl.gov----------
application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0
[unset]: aborting job:
application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0
[salaza11 at maya PETSC]$
Then again, I do not know much what I am doing given my ignorance with
respect to the dual spaces in FE. I apologize for that. My questions are:
- Where could I find more resources in order to understand the PETSc
implementation of dual spaces for FE?
- Why does it run with Dirichlet but not with Neumann?
Thanks in advance.
Miguel.
On Tue, Mar 4, 2014 at 11:28 PM, Matthew Knepley <knepley at gmail.com> wrote:
> On Tue, Mar 4, 2014 at 12:01 PM, Matthew Knepley <knepley at gmail.com>wrote:
>
>> On Tue, Mar 4, 2014 at 11:51 AM, Miguel Angel Salazar de Troya <
>> salazardetroya at gmail.com> wrote:
>>
>>> I can run it now, thanks. Although if I run it with valgrind 3.5.0
>>> (should I update to the last version?) I get some memory leaks related with
>>> the function DMPlexCreateBoxMesh.
>>>
>>
>> I will check it out.
>>
>
> This is now fixed.
>
> Thanks for finding it
>
> Matt
>
>
>> Thanks,
>>
>> Matt
>>
>>
>>> [salaza11 at maya tutorials]$ valgrind --leak-check=full ./ex12 -run_type
>>> test -refinement_limit 0.0 -bc_type dirichlet -interpolate 0
>>> -petscspace_order 1 -show_initial -dm_plex_print_fem 1
>>> ==9625== Memcheck, a memory error detector
>>> ==9625== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al.
>>> ==9625== Using Valgrind-3.5.0 and LibVEX; rerun with -h for copyright
>>> info
>>> ==9625== Command: ./ex12 -run_type test -refinement_limit 0.0 -bc_type
>>> dirichlet -interpolate 0 -petscspace_order 1 -show_initial
>>> -dm_plex_print_fem 1
>>> ==9625==
>>> Local function:
>>> Vec Object: 1 MPI processes
>>> type: seq
>>> 0
>>> 0.25
>>> 1
>>> 0.25
>>> 0.5
>>> 1.25
>>> 1
>>> 1.25
>>> 2
>>> Initial guess
>>> Vec Object: 1 MPI processes
>>> type: seq
>>> 0.5
>>> L_2 Error: 0.111111
>>> Residual:
>>> Vec Object: 1 MPI processes
>>> type: seq
>>> 0
>>> 0
>>> 0
>>> 0
>>> 0
>>> 0
>>> 0
>>> 0
>>> 0
>>> Initial Residual
>>> Vec Object: 1 MPI processes
>>> type: seq
>>> 0
>>> L_2 Residual: 0
>>> Jacobian:
>>> Mat Object: 1 MPI processes
>>> type: seqaij
>>> row 0: (0, 4)
>>> Residual:
>>> Vec Object: 1 MPI processes
>>> type: seq
>>> 0
>>> 0
>>> 0
>>> 0
>>> -2
>>> 0
>>> 0
>>> 0
>>> 0
>>> Au - b = Au + F(0)
>>> Vec Object: 1 MPI processes
>>> type: seq
>>> 0
>>> Linear L_2 Residual: 0
>>> ==9625==
>>> ==9625== HEAP SUMMARY:
>>> ==9625== in use at exit: 288 bytes in 3 blocks
>>> ==9625== total heap usage: 2,484 allocs, 2,481 frees, 1,009,287 bytes
>>> allocated
>>> ==9625==
>>> ==9625== 48 bytes in 1 blocks are definitely lost in loss record 1 of 3
>>> ==9625== at 0x4A05E46: malloc (vg_replace_malloc.c:195)
>>> ==9625== by 0x5D8D4E1: writepoly (triangle.c:12012)
>>> ==9625== by 0x5D8FAAC: triangulate (triangle.c:13167)
>>> ==9625== by 0x56B0884: DMPlexGenerate_Triangle (plex.c:3749)
>>> ==9625== by 0x56B5EE4: DMPlexGenerate (plex.c:4503)
>>> ==9625== by 0x567F414: DMPlexCreateBoxMesh (plexcreate.c:668)
>>> ==9625== by 0x4051FA: CreateMesh (ex12.c:341)
>>> ==9625== by 0x408D3D: main (ex12.c:651)
>>> ==9625==
>>> ==9625== 96 bytes in 1 blocks are definitely lost in loss record 2 of 3
>>> ==9625== at 0x4A05E46: malloc (vg_replace_malloc.c:195)
>>> ==9625== by 0x5D8D485: writepoly (triangle.c:12004)
>>> ==9625== by 0x5D8FAAC: triangulate (triangle.c:13167)
>>> ==9625== by 0x56B0884: DMPlexGenerate_Triangle (plex.c:3749)
>>> ==9625== by 0x56B5EE4: DMPlexGenerate (plex.c:4503)
>>> ==9625== by 0x567F414: DMPlexCreateBoxMesh (plexcreate.c:668)
>>> ==9625== by 0x4051FA: CreateMesh (ex12.c:341)
>>> ==9625== by 0x408D3D: main (ex12.c:651)
>>> ==9625==
>>> ==9625== 144 bytes in 1 blocks are definitely lost in loss record 3 of 3
>>> ==9625== at 0x4A05E46: malloc (vg_replace_malloc.c:195)
>>> ==9625== by 0x5D8CD20: writenodes (triangle.c:11718)
>>> ==9625== by 0x5D8F9DE: triangulate (triangle.c:13132)
>>> ==9625== by 0x56B0884: DMPlexGenerate_Triangle (plex.c:3749)
>>> ==9625== by 0x56B5EE4: DMPlexGenerate (plex.c:4503)
>>> ==9625== by 0x567F414: DMPlexCreateBoxMesh (plexcreate.c:668)
>>> ==9625== by 0x4051FA: CreateMesh (ex12.c:341)
>>> ==9625== by 0x408D3D: main (ex12.c:651)
>>> ==9625==
>>> ==9625== LEAK SUMMARY:
>>> ==9625== definitely lost: 288 bytes in 3 blocks
>>> ==9625== indirectly lost: 0 bytes in 0 blocks
>>> ==9625== possibly lost: 0 bytes in 0 blocks
>>> ==9625== still reachable: 0 bytes in 0 blocks
>>> ==9625== suppressed: 0 bytes in 0 blocks
>>> ==9625==
>>> ==9625== For counts of detected and suppressed errors, rerun with: -v
>>> ==9625== ERROR SUMMARY: 3 errors from 3 contexts (suppressed: 6 from 6)
>>>
>>>
>>>
>>>
>>>
>>> On Mon, Mar 3, 2014 at 7:05 PM, Matthew Knepley <knepley at gmail.com>wrote:
>>>
>>>> On Mon, Mar 3, 2014 at 4:59 PM, Miguel Angel Salazar de Troya <
>>>> salazardetroya at gmail.com> wrote:
>>>>
>>>>> You are welcome, thanks for your help.
>>>>>
>>>>
>>>> Okay, I have rebuilt completely clean, and ex12 runs for me. Can you
>>>> try again after pulling?
>>>>
>>>> Thanks,
>>>>
>>>> Matt
>>>>
>>>>
>>>>> On Mon, Mar 3, 2014 at 4:13 PM, Matthew Knepley <knepley at gmail.com>wrote:
>>>>>
>>>>>> On Mon, Mar 3, 2014 at 1:44 PM, Miguel Angel Salazar de Troya <
>>>>>> salazardetroya at gmail.com> wrote:
>>>>>>
>>>>>>> Thanks. This is what I get.
>>>>>>>
>>>>>>
>>>>>> Okay, this was broken by a new push to master/next in the last few
>>>>>> days. I have pushed a fix,
>>>>>> however next is currently broken due to a failure to check in a file.
>>>>>> This should be fixed shortly,
>>>>>> and then ex12 will work. I will mail you when its ready.
>>>>>>
>>>>>> Thanks for finding this,
>>>>>>
>>>>>> Matt
>>>>>>
>>>>>>
>>>>>>> (gdb) cont
>>>>>>> Continuing.
>>>>>>>
>>>>>>> Program received signal SIGSEGV, Segmentation fault.
>>>>>>> 0x00007fd6811bea7b in DMPlexComputeJacobianFEM (dm=0x159a180,
>>>>>>> X=0x168b5b0,
>>>>>>> Jac=0x7fffae6e8a88, JacP=0x7fffae6e8a88, str=0x7fffae6e7970,
>>>>>>> user=0x7fd6811be509)
>>>>>>> at /home/salaza11/petsc/src/dm/impls/plex/plexfem.c:882
>>>>>>> 882 ierr = PetscFEGetDimension(fe[f], &Nb);CHKERRQ(ierr);
>>>>>>> (gdb) where
>>>>>>> #0 0x00007fd6811bea7b in DMPlexComputeJacobianFEM (dm=0x159a180,
>>>>>>> X=0x168b5b0,
>>>>>>> Jac=0x7fffae6e8a88, JacP=0x7fffae6e8a88, str=0x7fffae6e7970,
>>>>>>> user=0x7fd6811be509)
>>>>>>> at /home/salaza11/petsc/src/dm/impls/plex/plexfem.c:882
>>>>>>> #1 0x00007fd6814a5bf6 in SNESComputeJacobian_DMLocal
>>>>>>> (snes=0x14e9450,
>>>>>>> X=0x1622ad0, A=0x7fffae6e8a88, B=0x7fffae6e8a88, ctx=0x1652300)
>>>>>>> at /home/salaza11/petsc/src/snes/utils/dmlocalsnes.c:102
>>>>>>> #2 0x00007fd6814cc609 in SNESComputeJacobian (snes=0x14e9450,
>>>>>>> X=0x1622ad0,
>>>>>>> A=0x7fffae6e8a88, B=0x7fffae6e8a88)
>>>>>>> at /home/salaza11/petsc/src/snes/interface/snes.c:2245
>>>>>>> #3 0x000000000040af72 in main (argc=15, argv=0x7fffae6e8bc8)
>>>>>>> at /home/salaza11/petsc/src/snes/examples/tutorials/ex12.c:784
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Mon, Mar 3, 2014 at 1:40 PM, Matthew Knepley <knepley at gmail.com>wrote:
>>>>>>>
>>>>>>>> On Mon, Mar 3, 2014 at 1:39 PM, Miguel Angel Salazar de Troya <
>>>>>>>> salazardetroya at gmail.com> wrote:
>>>>>>>>
>>>>>>>>> This is what I get at gdb when I type 'where'.
>>>>>>>>>
>>>>>>>>
>>>>>>>> You have to type 'cont', and then when it fails you type 'where'.
>>>>>>>>
>>>>>>>> Matt
>>>>>>>>
>>>>>>>>
>>>>>>>>> #0 0x000000310e0aa860 in __nanosleep_nocancel () from
>>>>>>>>> /lib64/libc.so.6
>>>>>>>>> #1 0x000000310e0aa70f in sleep () from /lib64/libc.so.6
>>>>>>>>> #2 0x00007fd83a00a8be in PetscSleep (s=10)
>>>>>>>>> at /home/salaza11/petsc/src/sys/utils/psleep.c:52
>>>>>>>>> #3 0x00007fd83a06f331 in PetscAttachDebugger ()
>>>>>>>>> at /home/salaza11/petsc/src/sys/error/adebug.c:397
>>>>>>>>> #4 0x00007fd83a0af1d2 in PetscOptionsCheckInitial_Private ()
>>>>>>>>> at /home/salaza11/petsc/src/sys/objects/init.c:444
>>>>>>>>> #5 0x00007fd83a0b6448 in PetscInitialize (argc=0x7fff5cd8df2c,
>>>>>>>>> args=0x7fff5cd8df20, file=0x0,
>>>>>>>>> help=0x60ce40 "Poisson Problem in 2d and 3d with simplicial
>>>>>>>>> finite elements.\nWe solve the Poisson problem in a rectangular\ndomain,
>>>>>>>>> using a parallel unstructured mesh (DMPLEX) to discretize it.\n\n\n")
>>>>>>>>> at /home/salaza11/petsc/src/sys/objects/pinit.c:876
>>>>>>>>> #6 0x0000000000408f2c in main (argc=15, argv=0x7fff5cd8f1f8)
>>>>>>>>> at /home/salaza11/petsc/src/snes/examples/tutorials/ex12.c:663
>>>>>>>>>
>>>>>>>>> The rest of the gdb output is attached. I am a bit ignorant with
>>>>>>>>> gdb, I apologize for that.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Mon, Mar 3, 2014 at 12:48 PM, Matthew Knepley <
>>>>>>>>> knepley at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> On Mon, Mar 3, 2014 at 12:39 PM, Miguel Angel Salazar de Troya <
>>>>>>>>>> salazardetroya at gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> Thanks for your response. Sorry I did not have the "next"
>>>>>>>>>>> version, but the "master" version. I still have an error though. I followed
>>>>>>>>>>> the steps given here (
>>>>>>>>>>> https://bitbucket.org/petsc/petsc/wiki/Home) to obtain the next
>>>>>>>>>>> version, I configured petsc as above and ran ex12 as above as well, getting
>>>>>>>>>>> this error:
>>>>>>>>>>>
>>>>>>>>>>> [salaza11 at maya tutorials]$ ./ex12 -run_type test
>>>>>>>>>>> -refinement_limit 0.0 -bc_type dirichlet -interpolate 0
>>>>>>>>>>> -petscspace_order 1 -show_initial -dm_plex_print_fem 1
>>>>>>>>>>> Local function:
>>>>>>>>>>> Vec Object: 1 MPI processes
>>>>>>>>>>> type: seq
>>>>>>>>>>> 0
>>>>>>>>>>> 0.25
>>>>>>>>>>> 1
>>>>>>>>>>> 0.25
>>>>>>>>>>> 0.5
>>>>>>>>>>> 1.25
>>>>>>>>>>> 1
>>>>>>>>>>> 1.25
>>>>>>>>>>> 2
>>>>>>>>>>> Initial guess
>>>>>>>>>>> Vec Object: 1 MPI processes
>>>>>>>>>>> type: seq
>>>>>>>>>>> 0.5
>>>>>>>>>>> L_2 Error: 0.111111
>>>>>>>>>>> Residual:
>>>>>>>>>>> Vec Object: 1 MPI processes
>>>>>>>>>>> type: seq
>>>>>>>>>>> 0
>>>>>>>>>>> 0
>>>>>>>>>>> 0
>>>>>>>>>>> 0
>>>>>>>>>>> 0
>>>>>>>>>>> 0
>>>>>>>>>>> 0
>>>>>>>>>>> 0
>>>>>>>>>>> 0
>>>>>>>>>>> Initial Residual
>>>>>>>>>>> Vec Object: 1 MPI processes
>>>>>>>>>>> type: seq
>>>>>>>>>>> 0
>>>>>>>>>>> L_2 Residual: 0
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Okay, now run with -start_in_debugger, and give me a stack trace
>>>>>>>>>> using 'where'.
>>>>>>>>>>
>>>>>>>>>> Thanks,
>>>>>>>>>>
>>>>>>>>>> Matt
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> [0]PETSC ERROR:
>>>>>>>>>>> ------------------------------------------------------------------------
>>>>>>>>>>> [0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation
>>>>>>>>>>> Violation, probably memory access out of range
>>>>>>>>>>> [0]PETSC ERROR: Try option -start_in_debugger or
>>>>>>>>>>> -on_error_attach_debugger
>>>>>>>>>>> [0]PETSC ERROR: or see
>>>>>>>>>>> http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind[0]PETSCERROR: or try
>>>>>>>>>>> http://valgrind.org on GNU/linux and Apple Mac OS X to find
>>>>>>>>>>> memory corruption errors
>>>>>>>>>>> [0]PETSC ERROR: likely location of problem given in stack below
>>>>>>>>>>> [0]PETSC ERROR: --------------------- Stack Frames
>>>>>>>>>>> ------------------------------------
>>>>>>>>>>> [0]PETSC ERROR: Note: The EXACT line numbers in the stack are
>>>>>>>>>>> not available,
>>>>>>>>>>> [0]PETSC ERROR: INSTEAD the line number of the start of
>>>>>>>>>>> the function
>>>>>>>>>>> [0]PETSC ERROR: is given.
>>>>>>>>>>> [0]PETSC ERROR: [0] DMPlexComputeJacobianFEM line 871
>>>>>>>>>>> /home/salaza11/petsc/src/dm/impls/plex/plexfem.c
>>>>>>>>>>> [0]PETSC ERROR: [0] SNESComputeJacobian_DMLocal line 94
>>>>>>>>>>> /home/salaza11/petsc/src/snes/utils/dmlocalsnes.c
>>>>>>>>>>> [0]PETSC ERROR: [0] SNES user Jacobian function line 2244
>>>>>>>>>>> /home/salaza11/petsc/src/snes/interface/snes.c
>>>>>>>>>>> [0]PETSC ERROR: [0] SNESComputeJacobian line 2203
>>>>>>>>>>> /home/salaza11/petsc/src/snes/interface/snes.c
>>>>>>>>>>> [0]PETSC ERROR: --------------------- Error Message
>>>>>>>>>>> --------------------------------------------------------------
>>>>>>>>>>> [0]PETSC ERROR: Signal received
>>>>>>>>>>> [0]PETSC ERROR: See http://
>>>>>>>>>>> http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble
>>>>>>>>>>> shooting.
>>>>>>>>>>> [0]PETSC ERROR: Petsc Development GIT revision:
>>>>>>>>>>> v3.4.3-4705-gfb6b3bc GIT Date: 2014-03-03 08:23:43 -0600
>>>>>>>>>>> [0]PETSC ERROR: ./ex12 on a linux-gnu-c-debug named maya by
>>>>>>>>>>> salaza11 Mon Mar 3 11:49:15 2014
>>>>>>>>>>> [0]PETSC ERROR: Configure options --download-mpich
>>>>>>>>>>> --download-scientificpython --download-triangle --download-ctetgen
>>>>>>>>>>> --download-chaco --with-c2html=0
>>>>>>>>>>> [0]PETSC ERROR: #1 User provided function() line 0 in unknown
>>>>>>>>>>> file
>>>>>>>>>>> application called MPI_Abort(MPI_COMM_WORLD, 59) - process 0
>>>>>>>>>>> [unset]: aborting job:
>>>>>>>>>>> application called MPI_Abort(MPI_COMM_WORLD, 59) - process 0
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On Sun, Mar 2, 2014 at 7:11 PM, Matthew Knepley <
>>>>>>>>>>> knepley at gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> On Sun, Mar 2, 2014 at 6:54 PM, Miguel Angel Salazar de Troya <
>>>>>>>>>>>> salazardetroya at gmail.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> Hi everybody
>>>>>>>>>>>>>
>>>>>>>>>>>>> I am trying to run example ex12.c without much success. I
>>>>>>>>>>>>> specifically run it with the command options:
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> We need to start narrowing down differences, because it runs
>>>>>>>>>>>> for me and our nightly tests. So, first can
>>>>>>>>>>>> you confirm that you are using the latest 'next' branch?
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>
>>>>>>>>>>>> Matt
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>> ./ex12 -run_type test -refinement_limit 0.0 -bc_type
>>>>>>>>>>>>> dirichlet -interpolate 0 -petscspace_order 1 -show_initial
>>>>>>>>>>>>> -dm_plex_print_fem 1
>>>>>>>>>>>>>
>>>>>>>>>>>>> And I get this output
>>>>>>>>>>>>>
>>>>>>>>>>>>> Local function:
>>>>>>>>>>>>> Vec Object: 1 MPI processes
>>>>>>>>>>>>> type: seq
>>>>>>>>>>>>> 0
>>>>>>>>>>>>> 1
>>>>>>>>>>>>> 1
>>>>>>>>>>>>> 2
>>>>>>>>>>>>> 1
>>>>>>>>>>>>> 2
>>>>>>>>>>>>> 2
>>>>>>>>>>>>> 3
>>>>>>>>>>>>> Initial guess
>>>>>>>>>>>>> Vec Object: 1 MPI processes
>>>>>>>>>>>>> type: seq
>>>>>>>>>>>>> L_2 Error: 0.625
>>>>>>>>>>>>> Residual:
>>>>>>>>>>>>> Vec Object: 1 MPI processes
>>>>>>>>>>>>> type: seq
>>>>>>>>>>>>> 0
>>>>>>>>>>>>> 0
>>>>>>>>>>>>> 0
>>>>>>>>>>>>> 0
>>>>>>>>>>>>> 0
>>>>>>>>>>>>> 0
>>>>>>>>>>>>> 0
>>>>>>>>>>>>> 0
>>>>>>>>>>>>> Initial Residual
>>>>>>>>>>>>> Vec Object: 1 MPI processes
>>>>>>>>>>>>> type: seq
>>>>>>>>>>>>> L_2 Residual: 0
>>>>>>>>>>>>> [0]PETSC ERROR:
>>>>>>>>>>>>> ------------------------------------------------------------------------
>>>>>>>>>>>>> [0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation
>>>>>>>>>>>>> Violation, probably memory access out of range
>>>>>>>>>>>>> [0]PETSC ERROR: Try option -start_in_debugger or
>>>>>>>>>>>>> -on_error_attach_debugger
>>>>>>>>>>>>> [0]PETSC ERROR: or see
>>>>>>>>>>>>> http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind[0]PETSCERROR: or try
>>>>>>>>>>>>> http://valgrind.org on GNU/linux and Apple Mac OS X to find
>>>>>>>>>>>>> memory corruption errors
>>>>>>>>>>>>> [0]PETSC ERROR: likely location of problem given in stack below
>>>>>>>>>>>>> [0]PETSC ERROR: --------------------- Stack Frames
>>>>>>>>>>>>> ------------------------------------
>>>>>>>>>>>>> [0]PETSC ERROR: Note: The EXACT line numbers in the stack are
>>>>>>>>>>>>> not available,
>>>>>>>>>>>>> [0]PETSC ERROR: INSTEAD the line number of the start of
>>>>>>>>>>>>> the function
>>>>>>>>>>>>> [0]PETSC ERROR: is given.
>>>>>>>>>>>>> [0]PETSC ERROR: [0] DMPlexComputeJacobianFEM line 867
>>>>>>>>>>>>> /home/salaza11/petsc/src/dm/impls/plex/plexfem.c
>>>>>>>>>>>>> [0]PETSC ERROR: [0] SNESComputeJacobian_DMLocal line 94
>>>>>>>>>>>>> /home/salaza11/petsc/src/snes/utils/dmlocalsnes.c
>>>>>>>>>>>>> [0]PETSC ERROR: [0] SNES user Jacobian function line 2244
>>>>>>>>>>>>> /home/salaza11/petsc/src/snes/interface/snes.c
>>>>>>>>>>>>> [0]PETSC ERROR: [0] SNESComputeJacobian line 2203
>>>>>>>>>>>>> /home/salaza11/petsc/src/snes/interface/snes.c
>>>>>>>>>>>>> [0]PETSC ERROR: --------------------- Error Message
>>>>>>>>>>>>> ------------------------------------
>>>>>>>>>>>>> [0]PETSC ERROR: Signal received!
>>>>>>>>>>>>> [0]PETSC ERROR:
>>>>>>>>>>>>> ------------------------------------------------------------------------
>>>>>>>>>>>>> [0]PETSC ERROR: Petsc Development GIT revision:
>>>>>>>>>>>>> v3.4.3-3453-g0a94005 GIT Date: 2014-03-02 13:12:04 -0600
>>>>>>>>>>>>> [0]PETSC ERROR: See docs/changes/index.html for recent updates.
>>>>>>>>>>>>> [0]PETSC ERROR: See docs/faq.html for hints about trouble
>>>>>>>>>>>>> shooting.
>>>>>>>>>>>>> [0]PETSC ERROR: See docs/index.html for manual pages.
>>>>>>>>>>>>> [0]PETSC ERROR:
>>>>>>>>>>>>> ------------------------------------------------------------------------
>>>>>>>>>>>>> [0]PETSC ERROR: ./ex12 on a linux-gnu-c-debug named maya by
>>>>>>>>>>>>> salaza11 Sun Mar 2 17:00:09 2014
>>>>>>>>>>>>> [0]PETSC ERROR: Libraries linked from
>>>>>>>>>>>>> /home/salaza11/petsc/linux-gnu-c-debug/lib
>>>>>>>>>>>>> [0]PETSC ERROR: Configure run at Sun Mar 2 16:46:51 2014
>>>>>>>>>>>>> [0]PETSC ERROR: Configure options --download-mpich
>>>>>>>>>>>>> --download-scientificpython --download-triangle --download-ctetgen
>>>>>>>>>>>>> --download-chaco --with-c2html=0
>>>>>>>>>>>>> [0]PETSC ERROR:
>>>>>>>>>>>>> ------------------------------------------------------------------------
>>>>>>>>>>>>> [0]PETSC ERROR: User provided function() line 0 in unknown
>>>>>>>>>>>>> file
>>>>>>>>>>>>> application called MPI_Abort(MPI_COMM_WORLD, 59) - process 0
>>>>>>>>>>>>> [unset]: aborting job:
>>>>>>>>>>>>> application called MPI_Abort(MPI_COMM_WORLD, 59) - process 0
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> Probably my problems could be on my configuration. I attach
>>>>>>>>>>>>> the configure.log. I ran ./configure like this
>>>>>>>>>>>>>
>>>>>>>>>>>>> ./configure --download-mpich --download-scientificpython
>>>>>>>>>>>>> --download-triangle --download-ctetgen --download-chaco --with-c2html=0
>>>>>>>>>>>>>
>>>>>>>>>>>>> Thanks a lot in advance.
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Tue, Jan 28, 2014 at 10:37 AM, Matthew Knepley <
>>>>>>>>>>>>> knepley at gmail.com> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Tue, Jan 28, 2014 at 10:31 AM, Yaakoub El Khamra <
>>>>>>>>>>>>>> yelkhamra at gmail.com> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> If
>>>>>>>>>>>>>>> ./ex12 -run_type test -dim 3 -refinement_limit 0.0125
>>>>>>>>>>>>>>> -variable_coefficient field -interpolate 1 -petscspace_order 2
>>>>>>>>>>>>>>> -show_initial -dm_plex_print_fem
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> is for serial, any chance we can get the options to run in
>>>>>>>>>>>>>>> parallel?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Just use mpiexec -n <procs>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Matt
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Regards
>>>>>>>>>>>>>>> Yaakoub El Khamra
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On Fri, Jan 17, 2014 at 11:29 AM, Matthew Knepley <
>>>>>>>>>>>>>>> knepley at gmail.com> wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On Fri, Jan 17, 2014 at 11:06 AM, Jones,Martin Alexander <
>>>>>>>>>>>>>>>> MAJones2 at mdanderson.org> wrote:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> ------------------------------
>>>>>>>>>>>>>>>>> *From:* Matthew Knepley [knepley at gmail.com]
>>>>>>>>>>>>>>>>> *Sent:* Friday, January 17, 2014 11:04 AM
>>>>>>>>>>>>>>>>> *To:* Jones,Martin Alexander
>>>>>>>>>>>>>>>>> *Cc:* petsc-users at mcs.anl.gov
>>>>>>>>>>>>>>>>> *Subject:* Re: [petsc-users] Problems running ex12.c
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> On Fri, Jan 17, 2014 at 11:00 AM, Jones,Martin
>>>>>>>>>>>>>>>>> Alexander <MAJones2 at mdanderson.org> wrote:
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> These examples all seem to run excepting the following
>>>>>>>>>>>>>>>>>> command,
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ex12 -run_type test -dim 3 -refinement_limit 0.0125
>>>>>>>>>>>>>>>>>> -variable_coefficient field -interpolate 1 -petscspace_order 2
>>>>>>>>>>>>>>>>>> -show_initial -dm_plex_print_fem
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> I get the following ouput:
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ./ex12 -run_type test -dim 3 -refinement_limit 0.0125
>>>>>>>>>>>>>>>>>> -variable_coefficient field -interpolate 1 -petscspace_order 2
>>>>>>>>>>>>>>>>>> -show_initial -dm_plex_print_fem
>>>>>>>>>>>>>>>>>> Local function:
>>>>>>>>>>>>>>>>>> ./ex12: symbol lookup error:
>>>>>>>>>>>>>>>>>> /opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libmkl_intel_thread.so: undefined
>>>>>>>>>>>>>>>>>> symbol: omp_get_num_procs
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> This is a build problem, but it should affect all the
>>>>>>>>>>>>>>>>> runs. Is this reproducible? Can you send configure.log? MKL is the worst.
>>>>>>>>>>>>>>>>> If this
>>>>>>>>>>>>>>>>> persists, I would just switch to --download-f-blas-lapack.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Thanks. I have some advice on options
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> --with-precision=single # I would not use this unless you
>>>>>>>>>>>>>>>> are doing something special, like CUDA
>>>>>>>>>>>>>>>> --with-clanguage=C++ # I would recommend switching to C,
>>>>>>>>>>>>>>>> the build is much faster
>>>>>>>>>>>>>>>> --with-mpi-dir=/usr --with-mpi4py=0
>>>>>>>>>>>>>>>> --with-shared-libraries --CFLAGS=-O0 --CXXFLAGS=-O0
>>>>>>>>>>>>>>>> --with-fc=0
>>>>>>>>>>>>>>>> --with-etags=1 # This is unnecessary
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> --with-blas-lapack-lib="[/opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libmkl_rt.so,/opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libmkl_intel_thread.so,/opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libmkl_core.so,/opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libiomp5.so]"
>>>>>>>>>>>>>>>> # Here is the problem, see below
>>>>>>>>>>>>>>>> --download-metis
>>>>>>>>>>>>>>>> --download-fiat=yes --download-generator
>>>>>>>>>>>>>>>> --download-scientificpython # Get rid of these, they are obsolete
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Your MKL needs another library for the OpenMP symbols. I
>>>>>>>>>>>>>>>> would recommend switching to --download-f2cblaslapack,
>>>>>>>>>>>>>>>> or you can try and find that library.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Matt
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Matt
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ------------------------------
>>>>>>>>>>>>>>>>>> *From:* Matthew Knepley [knepley at gmail.com]
>>>>>>>>>>>>>>>>>> *Sent:* Thursday, January 16, 2014 6:35 PM
>>>>>>>>>>>>>>>>>> *To:* Jones,Martin Alexander
>>>>>>>>>>>>>>>>>> *Cc:* petsc-users at mcs.anl.gov
>>>>>>>>>>>>>>>>>> *Subject:* Re: [petsc-users] Problems running ex12.c
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> On Thu, Jan 16, 2014 at 5:43 PM, Jones,Martin
>>>>>>>>>>>>>>>>>> Alexander <MAJones2 at mdanderson.org> wrote:
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> Hi, This is the next error message after configuring
>>>>>>>>>>>>>>>>>>> and building with the triangle package when trying to run ex12
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> This is my fault for bad defaults. I will fix. Try
>>>>>>>>>>>>>>>>>> running
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ./ex12 -run_type test -refinement_limit 0.0
>>>>>>>>>>>>>>>>>> -bc_type dirichlet -interpolate 0 -petscspace_order 1 -show_initial
>>>>>>>>>>>>>>>>>> -dm_plex_print_fem 1
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> for a representative run. Then you could try 3D
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ex12 -run_type test -dim 3 -refinement_limit 0.0125
>>>>>>>>>>>>>>>>>> -variable_coefficient field -interpolate 1 -petscspace_order 2
>>>>>>>>>>>>>>>>>> -show_initial -dm_plex_print_fem
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> or a full run
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ex12 -refinement_limit 0.01 -bc_type dirichlet
>>>>>>>>>>>>>>>>>> -interpolate -petscspace_order 1
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> ex12 -refinement_limit 0.01 -bc_type dirichlet
>>>>>>>>>>>>>>>>>> -interpolate -petscspace_order 2
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Let me know if those work.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Matt
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> ./ex12
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR:
>>>>>>>>>>>>>>>>>>> ------------------------------------------------------------------------
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Caught signal number 8 FPE: Floating
>>>>>>>>>>>>>>>>>>> Point Exception,probably divide by zero
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Try option -start_in_debugger or
>>>>>>>>>>>>>>>>>>> -on_error_attach_debugger
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: or see
>>>>>>>>>>>>>>>>>>> http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind[0]PETSCERROR: or try
>>>>>>>>>>>>>>>>>>> http://valgrind.org on GNU/linux and Apple Mac OS X to
>>>>>>>>>>>>>>>>>>> find memory corruption errors
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: likely location of problem given in
>>>>>>>>>>>>>>>>>>> stack below
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: --------------------- Stack Frames
>>>>>>>>>>>>>>>>>>> ------------------------------------
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Note: The EXACT line numbers in the
>>>>>>>>>>>>>>>>>>> stack are not available,
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: INSTEAD the line number of the
>>>>>>>>>>>>>>>>>>> start of the function
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: is given.
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: [0] DMPlexComputeResidualFEM line 531
>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc/src/dm/impls/plex/plexfem.c
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: [0] SNESComputeFunction_DMLocal line 63
>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc/src/snes/utils/dmlocalsnes.c
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: [0] SNES user function line 2088
>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc/src/snes/interface/snes.c
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: [0] SNESComputeFunction line 2076
>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc/src/snes/interface/snes.c
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: [0] SNESSolve_NEWTONLS line 144
>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc/src/snes/impls/ls/ls.c
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: [0] SNESSolve line 3765
>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc/src/snes/interface/snes.c
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: --------------------- Error Message
>>>>>>>>>>>>>>>>>>> ------------------------------------
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Signal received!
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR:
>>>>>>>>>>>>>>>>>>> ------------------------------------------------------------------------
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Petsc Development GIT revision:
>>>>>>>>>>>>>>>>>>> v3.4.3-2317-gcd0e7f7 GIT Date: 2014-01-15 20:33:42 -0600
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: See docs/changes/index.html for recent
>>>>>>>>>>>>>>>>>>> updates.
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: See docs/faq.html for hints about
>>>>>>>>>>>>>>>>>>> trouble shooting.
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: See docs/index.html for manual pages.
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR:
>>>>>>>>>>>>>>>>>>> ------------------------------------------------------------------------
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: ./ex12 on a arch-linux2-cxx-debug named
>>>>>>>>>>>>>>>>>>> maeda by mjonesa Thu Jan 16 17:41:23 2014
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Libraries linked from
>>>>>>>>>>>>>>>>>>> /home/mjonesa/local/lib
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Configure run at Thu Jan 16 17:38:33 2014
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Configure options
>>>>>>>>>>>>>>>>>>> --prefix=/home/mjonesa/local
>>>>>>>>>>>>>>>>>>> --with-blas-lapack-lib="[/opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libmkl_rt.so,/opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libmkl_intel_thread.so,/opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libmkl_core.so,/opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libiomp5.so]"
>>>>>>>>>>>>>>>>>>> --with-c2html=0 --with-clanguage=c++ PETSC_ARCH=arch-linux2-cxx-debug
>>>>>>>>>>>>>>>>>>> --download-triangle
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR:
>>>>>>>>>>>>>>>>>>> ------------------------------------------------------------------------
>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: User provided function() line 0 in
>>>>>>>>>>>>>>>>>>> unknown file
>>>>>>>>>>>>>>>>>>> application called MPI_Abort(MPI_COMM_WORLD, 59) -
>>>>>>>>>>>>>>>>>>> process 0
>>>>>>>>>>>>>>>>>>> ------------------------------
>>>>>>>>>>>>>>>>>>> *From:* Matthew Knepley [knepley at gmail.com]
>>>>>>>>>>>>>>>>>>> *Sent:* Thursday, January 16, 2014 4:37 PM
>>>>>>>>>>>>>>>>>>> *To:* Jones,Martin Alexander
>>>>>>>>>>>>>>>>>>> *Cc:* petsc-users at mcs.anl.gov
>>>>>>>>>>>>>>>>>>> *Subject:* Re: [petsc-users] Problems running ex12.c
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> On Thu, Jan 16, 2014 at 4:33 PM, Jones,Martin
>>>>>>>>>>>>>>>>>>> Alexander <MAJones2 at mdanderson.org> wrote:
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> Hi, I have downloaded and built the dev version you
>>>>>>>>>>>>>>>>>>>> suggested. I think I need the triangle package to run this particular case.
>>>>>>>>>>>>>>>>>>>> Is there any thing else that appears wrong in what I have done from the
>>>>>>>>>>>>>>>>>>>> error messages below:
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> Great! Its running. You can reconfigure like this:
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> $PETSC_DIR/$PETSC_ARCH/conf/reconfigure-$PETSC_ARCH.py --download-triangle
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> and then rebuild
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> make
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> and then rerun. You can load meshes, but its much
>>>>>>>>>>>>>>>>>>> easier to have triangle create them.
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> Thanks for being patient,
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> Matt
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: --------------------- Error Message
>>>>>>>>>>>>>>>>>>>> ------------------------------------
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: No support for this operation for this
>>>>>>>>>>>>>>>>>>>> object type!
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Mesh generation needs external package
>>>>>>>>>>>>>>>>>>>> support.
>>>>>>>>>>>>>>>>>>>> Please reconfigure with --download-triangle.!
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR:
>>>>>>>>>>>>>>>>>>>> ------------------------------------------------------------------------
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Petsc Development GIT revision:
>>>>>>>>>>>>>>>>>>>> v3.4.3-2317-gcd0e7f7 GIT Date: 2014-01-15 20:33:42 -0600
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: See docs/changes/index.html for recent
>>>>>>>>>>>>>>>>>>>> updates.
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: See docs/faq.html for hints about
>>>>>>>>>>>>>>>>>>>> trouble shooting.
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: See docs/index.html for manual pages.
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR:
>>>>>>>>>>>>>>>>>>>> ------------------------------------------------------------------------
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: ./ex12 on a arch-linux2-cxx-debug named
>>>>>>>>>>>>>>>>>>>> maeda by mjonesa Thu Jan 16 16:28:20 2014
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Libraries linked from
>>>>>>>>>>>>>>>>>>>> /home/mjonesa/local/lib
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Configure run at Thu Jan 16 16:25:53
>>>>>>>>>>>>>>>>>>>> 2014
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: Configure options
>>>>>>>>>>>>>>>>>>>> --prefix=/home/mjonesa/local --with-clanguage=c++ --with-c2html=0
>>>>>>>>>>>>>>>>>>>> --with-blas-lapack-lib="[/opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libmkl_rt.so,/opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libmkl_intel_thread.so,/opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libmkl_core.so,/opt/apps/EPD/epd-7.3-1-rh5-x86_64/lib/libiomp5.so]"
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR:
>>>>>>>>>>>>>>>>>>>> ------------------------------------------------------------------------
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: DMPlexGenerate() line 4332 in
>>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc/src/dm/impls/plex/plex.c
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: DMPlexCreateBoxMesh() line 600 in
>>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc/src/dm/impls/plex/plexcreate.c
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: CreateMesh() line 295 in
>>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc/src/snes/examples/tutorials/ex12.c
>>>>>>>>>>>>>>>>>>>> [0]PETSC ERROR: main() line 659 in
>>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc/src/snes/examples/tutorials/ex12.c
>>>>>>>>>>>>>>>>>>>> application called MPI_Abort(MPI_COMM_WORLD, 56) -
>>>>>>>>>>>>>>>>>>>> process 0
>>>>>>>>>>>>>>>>>>>> ------------------------------
>>>>>>>>>>>>>>>>>>>> *From:* Matthew Knepley [knepley at gmail.com]
>>>>>>>>>>>>>>>>>>>> *Sent:* Thursday, January 16, 2014 4:06 PM
>>>>>>>>>>>>>>>>>>>> *To:* Jones,Martin Alexander
>>>>>>>>>>>>>>>>>>>> *Cc:* petsc-users at mcs.anl.gov
>>>>>>>>>>>>>>>>>>>> *Subject:* Re: [petsc-users] Problems running ex12.c
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> On Thu, Jan 16, 2014 at 4:05 PM, Jones,Martin
>>>>>>>>>>>>>>>>>>>> Alexander <MAJones2 at mdanderson.org> wrote:
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> Hi. I changed the ENV variable to the correct entry.
>>>>>>>>>>>>>>>>>>>>> when I type make ex12 I get this:
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> mjonesa at maeda:~/PETSc/petsc-3.4.3/src/snes/examples/tutorials$
>>>>>>>>>>>>>>>>>>>>> make ex12
>>>>>>>>>>>>>>>>>>>>> g++ -o ex12.o -c -Wall -Wwrite-strings
>>>>>>>>>>>>>>>>>>>>> -Wno-strict-aliasing -Wno-unknown-pragmas -g -fPIC
>>>>>>>>>>>>>>>>>>>>> -I/home/mjonesa/PETSc/petsc-3.4.3/include
>>>>>>>>>>>>>>>>>>>>> -I/home/mjonesa/PETSc/petsc-3.4.3/arch-linux2-cxx-debug/include
>>>>>>>>>>>>>>>>>>>>> -I/home/mjonesa/PETSc/petsc-3.4.3/include/mpiuni
>>>>>>>>>>>>>>>>>>>>> -D__INSDIR__=src/snes/examples/tutorials/ ex12.c
>>>>>>>>>>>>>>>>>>>>> ex12.c:14:18: fatal error: ex12.h: No such file or
>>>>>>>>>>>>>>>>>>>>> directory
>>>>>>>>>>>>>>>>>>>>> compilation terminated.
>>>>>>>>>>>>>>>>>>>>> make: *** [ex12.o] Error 1
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> Any help of yours is very much appreciated.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> Yes, this relates to my 3). This is not going to work
>>>>>>>>>>>>>>>>>>>> for you with the release. Please see the link I sent.
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> Matt
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> ------------------------------
>>>>>>>>>>>>>>>>>>>>> *From:* Matthew Knepley [knepley at gmail.com]
>>>>>>>>>>>>>>>>>>>>> *Sent:* Thursday, January 16, 2014 3:58 PM
>>>>>>>>>>>>>>>>>>>>> *To:* Jones,Martin Alexander
>>>>>>>>>>>>>>>>>>>>> *Cc:* petsc-users at mcs.anl.gov
>>>>>>>>>>>>>>>>>>>>> *Subject:* Re: [petsc-users] Problems running ex12.c
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> On Thu, Jan 16, 2014 at 3:55 PM, Jones,Martin
>>>>>>>>>>>>>>>>>>>>> Alexander <MAJones2 at mdanderson.org> wrote:
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> Thanks!
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> You built with PETSC_ARCH=arch-linux2-cxx-debug
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> Matt
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> ------------------------------
>>>>>>>>>>>>>>>>>>>>>> *From:* Matthew Knepley [knepley at gmail.com]
>>>>>>>>>>>>>>>>>>>>>> *Sent:* Thursday, January 16, 2014 3:31 PM
>>>>>>>>>>>>>>>>>>>>>> *To:* Jones,Martin Alexander
>>>>>>>>>>>>>>>>>>>>>> *Cc:* petsc-users at mcs.anl.gov
>>>>>>>>>>>>>>>>>>>>>> *Subject:* Re: [petsc-users] Problems running ex12.c
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> On Thu, Jan 16, 2014 at 3:11 PM, Jones,Martin
>>>>>>>>>>>>>>>>>>>>>> Alexander <MAJones2 at mdanderson.org> wrote:
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> Now I went to the directory where ex12.c sits and
>>>>>>>>>>>>>>>>>>>>>>> just did a 'make ex12.c' with the following error if this helps? :
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> mjonesa at maeda:~/PETSc/petsc-3.4.3/src/snes/examples/tutorials$
>>>>>>>>>>>>>>>>>>>>>>> make ex12.c
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc-3.4.3/conf/variables:108:
>>>>>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc-3.4.3/linux-gnu-cxx-debug/conf/petscvariables: No
>>>>>>>>>>>>>>>>>>>>>>> such file or directory
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc-3.4.3/conf/rules:962:
>>>>>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc-3.4.3/linux-gnu-cxx-debug/conf/petscrules: No
>>>>>>>>>>>>>>>>>>>>>>> such file or directory
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> make: *** No rule to make target
>>>>>>>>>>>>>>>>>>>>>>> `/home/mjonesa/PETSc/petsc-3.4.3/linux-gnu-cxx-debug/conf/petscrules'.
>>>>>>>>>>>>>>>>>>>>>>> Stop.
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> 1) You would type 'make ex12'
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> 2) Either you PETSC_DIR (
>>>>>>>>>>>>>>>>>>>>>> /home/mjonesa/PETSc/petsc-3.4.3) or PETSC_ARCH (
>>>>>>>>>>>>>>>>>>>>>> linux-gnu-cxx-debug) environment variables
>>>>>>>>>>>>>>>>>>>>>> do not match what you built. Please send
>>>>>>>>>>>>>>>>>>>>>> configure.log and make.log
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> 3) Since it was only recently added, if you want to
>>>>>>>>>>>>>>>>>>>>>> use the FEM functionality, you must use the development version:
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> http://www.mcs.anl.gov/petsc/developers/index.html
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> Matt
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> *From:* Matthew Knepley [mailto:knepley at gmail.com]
>>>>>>>>>>>>>>>>>>>>>>> *Sent:* Thursday, January 16, 2014 2:48 PM
>>>>>>>>>>>>>>>>>>>>>>> *To:* Jones,Martin Alexander
>>>>>>>>>>>>>>>>>>>>>>> *Cc:* petsc-users at mcs.anl.gov
>>>>>>>>>>>>>>>>>>>>>>> *Subject:* Re: [petsc-users] Problems running ex12.c
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> On Thu, Jan 16, 2014 at 2:35 PM, Jones,Martin
>>>>>>>>>>>>>>>>>>>>>>> Alexander <MAJones2 at mdanderson.org> wrote:
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> Hello To Whom it Concerns,
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> I am trying to run the tutorial ex12.c by running 'bin/pythonscripts/PetscGenerateFEMQuadrature.py
>>>>>>>>>>>>>>>>>>>>>>> dim order dim 1 laplacian dim order dim 1 boundary
>>>>>>>>>>>>>>>>>>>>>>> src/snes/examples/tutorials/ex12.h'
>>>>>>>>>>>>>>>>>>>>>>> but getting the following error:
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> $ bin/pythonscripts/PetscGenerateFEMQuadrature.py
>>>>>>>>>>>>>>>>>>>>>>> dim order dim 1 laplacian dim order dim 1 boundary
>>>>>>>>>>>>>>>>>>>>>>> src/snes/examples/tutorials/ex12.h
>>>>>>>>>>>>>>>>>>>>>>> Traceback (most recent call last):
>>>>>>>>>>>>>>>>>>>>>>> File
>>>>>>>>>>>>>>>>>>>>>>> "bin/pythonscripts/PetscGenerateFEMQuadrature.py", line 15, in <module>
>>>>>>>>>>>>>>>>>>>>>>> from FIAT.reference_element import
>>>>>>>>>>>>>>>>>>>>>>> default_simplex
>>>>>>>>>>>>>>>>>>>>>>> ImportError: No module named FIAT.reference_element
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> I have removed the requirement of generating the
>>>>>>>>>>>>>>>>>>>>>>> header file (its now all handled in C). I thought
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> I changed the documentation everywhere (including
>>>>>>>>>>>>>>>>>>>>>>> the latest tutorial slides). Can you try running
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> with 'master' (or 'next'), and point me toward the
>>>>>>>>>>>>>>>>>>>>>>> old docs?
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> Matt
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>>>>>>> What most experimenters take for granted before they
>>>>>>>>>>>>>>>>>>>>>>> begin their experiments is infinitely more interesting than any results to
>>>>>>>>>>>>>>>>>>>>>>> which their experiments lead.
>>>>>>>>>>>>>>>>>>>>>>> -- Norbert Wiener
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>>>>>> What most experimenters take for granted before they
>>>>>>>>>>>>>>>>>>>>>> begin their experiments is infinitely more interesting than any results to
>>>>>>>>>>>>>>>>>>>>>> which their experiments lead.
>>>>>>>>>>>>>>>>>>>>>> -- Norbert Wiener
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>>>>> What most experimenters take for granted before they
>>>>>>>>>>>>>>>>>>>>> begin their experiments is infinitely more interesting than any results to
>>>>>>>>>>>>>>>>>>>>> which their experiments lead.
>>>>>>>>>>>>>>>>>>>>> -- Norbert Wiener
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>>>> What most experimenters take for granted before they
>>>>>>>>>>>>>>>>>>>> begin their experiments is infinitely more interesting than any results to
>>>>>>>>>>>>>>>>>>>> which their experiments lead.
>>>>>>>>>>>>>>>>>>>> -- Norbert Wiener
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>>> What most experimenters take for granted before they
>>>>>>>>>>>>>>>>>>> begin their experiments is infinitely more interesting than any results to
>>>>>>>>>>>>>>>>>>> which their experiments lead.
>>>>>>>>>>>>>>>>>>> -- Norbert Wiener
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>> What most experimenters take for granted before they
>>>>>>>>>>>>>>>>>> begin their experiments is infinitely more interesting than any results to
>>>>>>>>>>>>>>>>>> which their experiments lead.
>>>>>>>>>>>>>>>>>> -- Norbert Wiener
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>> What most experimenters take for granted before they begin
>>>>>>>>>>>>>>>>> their experiments is infinitely more interesting than any results to which
>>>>>>>>>>>>>>>>> their experiments lead.
>>>>>>>>>>>>>>>>> -- Norbert Wiener
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>> What most experimenters take for granted before they begin
>>>>>>>>>>>>>>>> their experiments is infinitely more interesting than any results to which
>>>>>>>>>>>>>>>> their experiments lead.
>>>>>>>>>>>>>>>> -- Norbert Wiener
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> What most experimenters take for granted before they begin
>>>>>>>>>>>>>> their experiments is infinitely more interesting than any results to which
>>>>>>>>>>>>>> their experiments lead.
>>>>>>>>>>>>>> -- Norbert Wiener
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
>>>>>>>>>>>>> *Miguel Angel Salazar de Troya*
>>>>>>>>>>>>> Graduate Research Assistant
>>>>>>>>>>>>> Department of Mechanical Science and Engineering
>>>>>>>>>>>>> University of Illinois at Urbana-Champaign
>>>>>>>>>>>>> (217) 550-2360
>>>>>>>>>>>>> salaza11 at illinois.edu
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> --
>>>>>>>>>>>> What most experimenters take for granted before they begin
>>>>>>>>>>>> their experiments is infinitely more interesting than any results to which
>>>>>>>>>>>> their experiments lead.
>>>>>>>>>>>> -- Norbert Wiener
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> --
>>>>>>>>>>> *Miguel Angel Salazar de Troya*
>>>>>>>>>>> Graduate Research Assistant
>>>>>>>>>>> Department of Mechanical Science and Engineering
>>>>>>>>>>> University of Illinois at Urbana-Champaign
>>>>>>>>>>> (217) 550-2360
>>>>>>>>>>> salaza11 at illinois.edu
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> What most experimenters take for granted before they begin their
>>>>>>>>>> experiments is infinitely more interesting than any results to which their
>>>>>>>>>> experiments lead.
>>>>>>>>>> -- Norbert Wiener
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> *Miguel Angel Salazar de Troya*
>>>>>>>>> Graduate Research Assistant
>>>>>>>>> Department of Mechanical Science and Engineering
>>>>>>>>> University of Illinois at Urbana-Champaign
>>>>>>>>> (217) 550-2360
>>>>>>>>> salaza11 at illinois.edu
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> What most experimenters take for granted before they begin their
>>>>>>>> experiments is infinitely more interesting than any results to which their
>>>>>>>> experiments lead.
>>>>>>>> -- Norbert Wiener
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> *Miguel Angel Salazar de Troya*
>>>>>>> Graduate Research Assistant
>>>>>>> Department of Mechanical Science and Engineering
>>>>>>> University of Illinois at Urbana-Champaign
>>>>>>> (217) 550-2360
>>>>>>> salaza11 at illinois.edu
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> What most experimenters take for granted before they begin their
>>>>>> experiments is infinitely more interesting than any results to which their
>>>>>> experiments lead.
>>>>>> -- Norbert Wiener
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> *Miguel Angel Salazar de Troya*
>>>>> Graduate Research Assistant
>>>>> Department of Mechanical Science and Engineering
>>>>> University of Illinois at Urbana-Champaign
>>>>> (217) 550-2360
>>>>> salaza11 at illinois.edu
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> What most experimenters take for granted before they begin their
>>>> experiments is infinitely more interesting than any results to which their
>>>> experiments lead.
>>>> -- Norbert Wiener
>>>>
>>>
>>>
>>>
>>> --
>>> *Miguel Angel Salazar de Troya*
>>> Graduate Research Assistant
>>> Department of Mechanical Science and Engineering
>>> University of Illinois at Urbana-Champaign
>>> (217) 550-2360
>>> salaza11 at illinois.edu
>>>
>>>
>>
>>
>> --
>> What most experimenters take for granted before they begin their
>> experiments is infinitely more interesting than any results to which their
>> experiments lead.
>> -- Norbert Wiener
>>
>
>
>
> --
> What most experimenters take for granted before they begin their
> experiments is infinitely more interesting than any results to which their
> experiments lead.
> -- Norbert Wiener
>
--
*Miguel Angel Salazar de Troya*
Graduate Research Assistant
Department of Mechanical Science and Engineering
University of Illinois at Urbana-Champaign
(217) 550-2360
salaza11 at illinois.edu
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