[Trilinos-Users] Basic question concerning Anasazi and Epetra

[Doug Reeder]

Axel,

What is ANASAZI_CXX defined as. It looks like it may not be defined  
properly.

Doug Reeder
On Jul 17, 2008, at 5:27 AM, Axel CABLE wrote:

> Hi Chris and Heidi,
>
> Thank you for your fast answers!
>
> The sample file you gave me was exactly what I needed.
>
> Though, when trying to build my fission.cpp file, i get the  
> following errors:
>
> make: c: Command not found
> make: [fission.o] Error 127 (ignored)
> [linking to libraries..]
> make: o: Command not found
> make: [fission.exe] Error 127 (ignored)
>
> I built and installed trilinos in the following directory:
> home/axel/Desktop/ANASAZI/trilinos-8.0.7/LINUX/
> (I ran "make everything" and "install everything" after configuring  
> with
> the appropriate options)
>
> Hence Anasazi is located in:
> home/axel/Desktop/ANASAZI/trilinos-8.0.7/LINUX/packages/anasazi/
> I dont have an /include directory though in /anasazi, but I pointed  
> to the
> Makefile.export.anasazi file located directly in /anasazi.
>
> Any idea how I could solve the make errors?
>
> Is it normal that I don't have an /include directory in /anasazi?
> (installation not made correctly? I didn't get any error though)
>
> I attached the modified Makefile and the obtained error in case it  
> would
> help.
>
> Thanks for your time and help,
> (Merci!)
>
> Axel
>
>
>
>> Hi Axel,
>>
>> In addition to Chris Baker's suggestions, I would suggest that you  
>> play
>> with the example found in:
>>
>> example/BlockKrylovSchur/BlockKrylovSchurEx.cpp
>>
>> This example shows how to build a matrix in Epetra (discretized 2D
>> convection-diffusion operator) and compute the eigenvalues of
>> it using block Krylov-Schur, which is our non-Hermitian eigensolver.
>>
>> Please let us know if we can be of further assistance.
>>
>> Thanks,
>> Heidi
>>
>> ________________________________
>> From: trilinos-users-bounces at software.sandia.gov
>> [mailto:trilinos-users-bounces at software.sandia.gov] On Behalf Of  
>> Chris
>> Baker
>> Sent: Wednesday, July 16, 2008 8:18 AM
>> To: Axel CABLE; trilinos-users at software.sandia.gov
>> Subject: Re: [Trilinos-Users] Basic question concerning Anasazi  
>> and Epetra
>>
>> Axel,
>>
>> You should configure Trilinos, build it, and install it into a  
>> separate
>> directory. This directory will contain the C++ headers and libraries
>> necessary for you to build the modified example. There are  
>> instructions
>> for doing this here:
>> http://trilinos.sandia.gov/getting_started.html
>>
>> I have attached a simple Makefile that I use when building an  
>> external
>> executable against an installed version of Epetra/Anasazi. You  
>> should be
>> able to modify this to your needs.
>>
>> Bienvenue et bonne chance,
>> Chris Baker
>>
>>
>> On Wed, Jul 16, 2008 at 08:05, Axel CABLE
>> <axel.cable at etu.univ-nantes.fr<mailto:axel.cable at etu.univ-nantes.fr>>
>> wrote:
>> Hi Users List,
>>
>> I want to compute the largest eigenvalue and corresponding  
>> eigenvector of
>> a possibly very large non-symmetric real sparse matrix.
>>
>> Anasazi seems to be a good way to achieve that, using Epetra to  
>> build the
>> matrix.
>>
>> Being new to programing in general, I intend to simply modify the
>> available examples without studying Epetra and Anasazi in detail.
>>
>> I have hence a basic question:
>>
>> What should I do to compile the modified example .cpp file?
>> I guess I should create a Makefile, but I couldn't find an  
>> explanation for
>> this anywhere. Is there some kind of Makefile example somewhere?
>>
>> I would be very grateful if you could help me with this.
>>
>> Thanks!
>>
>> Axel CABLE
>>
>>
>>
>> _______________________________________________
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>> Users at software.sandia.gov>
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>>
>>
>>
>> <Makefile><make error>
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