[petsc-users] FFT with PETSC

[Jed Brown]

On Fri, Apr 1, 2011 at 08:53, khalid ashraf <khalid_eee at yahoo.com> wrote:

> ex142.c(8): catastrophic error: could not open source file "petscmat.h"
>   #include <petscmat.h>
>                        ^
>

What commands are printed when you typed "make ex142"? Are you trying to
invoke the compiler yourself (thus missing some include paths)?


> The same error with <fftw3.h>
>
> Do I need to configure petsc with something else ?
>

Did you use --download-fftw or --with-fftw-dir=/path/to/your/fftw3 ?
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