[Pkg-scicomp-devel] freefem++ in Debian

[Christophe Prud'homme]

Hi Drew,

| Thanks for your efforts in preparing it.  There's a small packaging
| matter, it just needs a Build-Depends: automake-1.9.
|
| While learning how to use it, I've met an error which doesn't make sense
| to me.  Using only 23 grid points per box edge (for testing), I can get
| a solution running.  But the moment I try to use a finer grid (even just
| 24 points per edge), I get the message
|
| UMFPACK V5.1.0 (May 31, 2007): WARNING: matrix is singular
|
| umfpack_di_numeric failed
|   current line = 150
| Exec error : umfpack_di_numeric failed
|    -- number :1
|  catch an erreur in  solve  =>  set  sol = 0 !!!!!!!
| Exec error : umfpack_di_numeric failed
|    -- number :1
|  err code 7
Could you show the .edp file ? 

|
| It doesn't make sense that the matrix would suddenly go singular just by
| switching from 23 to 24 grid points per side.  I thought it could be a
| bug  in v2.20 that's since been fixed in 2.23, so I'm preparing a deb
| from the latest upstream source.  I tested your initial packaging for
| 2.20 first, and found it specifies aclocal-1.9.  So you'll want to add a
| Build-Depends: automake1.9 to cover that.  Does it really need
| aclocal-1.9 or could you remove those version definitions from
| debian/rules?
We could I will look into that.

Would you like to join pkg-scicomp and help with freefem++ ?

cu
C.
-- 
Christophe Prud'homme
Université Joseph Fourier      christophe.prudhomme at ujf-grenoble.fr
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