[bug#33635] [PATCH] gnu: petsc-openmpi: Ensure compatibility of SCOTCH dependency.

[bug#33635] [PATCH] gnu: petsc-openmpi: Ensure compatibility of SCOTCH dependency.

[Paul Garlick]

* gnu/packages/maths.scm (petsc-openmpi)[inputs]: Replace pt-scotch
with pt-scotch32 in order to prevent 'incompatible pointer' warnings
being generated in the 'build' phase.
---
 gnu/packages/maths.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index f88cede..c35bf9e 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -1772,7 +1772,7 @@ scientific applications modeled by partial differential equations.")
        ("mumps" ,mumps-openmpi)
        ("openmpi" ,openmpi)
        ("scalapack" ,scalapack)
-       ("scotch" ,pt-scotch)
+       ("scotch" ,pt-scotch32)
        ,@(package-inputs petsc)))
     (arguments
      (substitute-keyword-arguments (package-arguments petsc)
-- 
1.8.3.1

bug#33635: [PATCH] gnu: petsc-openmpi: Ensure compatibility of SCOTCH dependency.

[Ludovic Courtès]

Hi Paul,

Paul Garlick <pgarlick@tourbillion-technology.com> skribis:

> * gnu/packages/maths.scm (petsc-openmpi)[inputs]: Replace pt-scotch
> with pt-scotch32 in order to prevent 'incompatible pointer' warnings
> being generated in the 'build' phase.

Applied!

Did it lead to crashes at run time?

Thanks,
Ludo’.

[bug#33635] [PATCH] gnu: petsc-openmpi: Ensure compatibility of SCOTCH dependency.

[Paul Garlick]

Hi Ludo,

> Did it lead to crashes at run time?

I have not seen any crashes at runtime.  The issue is to do with the
integer values used for matrix indexing.  PETSc can be built using 64-
bit indexing but defaults to 32-bit.  So this patch enforces
consistency between PETSc and SCOTCH.

Best regards,

Paul.