[bug#32818] [PATCH] gnu: Add petsc-mumps-openmpi.

[Paul Garlick <pgarlick@tourbillion-technology.com>]

* gnu/packages/maths.scm (petsc-mumps-openmpi): New variable.
---
 gnu/packages/maths.scm | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 736bac1..b2fff54 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -1724,6 +1724,48 @@ scientific applications modeled by partial differential equations.")
            ,@(delete "--with-mpi=0" ,cf)))))
     (synopsis "Library to solve PDEs (with complex scalars and MPI support)")))
 
+(define-public petsc-mumps-openmpi
+  (package (inherit petsc-openmpi)
+    (name "petsc-mumps-openmpi")
+    (inputs
+     `(("metis" ,metis)
+       ("mumps" ,mumps-openmpi)
+       ("scalapack" ,scalapack)
+       ("scotch" ,pt-scotch)
+       ,@(package-inputs petsc-openmpi)))
+    (arguments
+     (substitute-keyword-arguments (package-arguments petsc-openmpi)
+       ((#:configure-flags cf)
+        ``(,(string-append "--with-metis-include="
+                           (assoc-ref %build-inputs "metis") "/include")
+           ,(string-append "--with-metis-lib="
+                           (assoc-ref %build-inputs "metis") "/lib/"
+                           "libmetis.so")
+           ,(string-append "--with-mumps-include="
+                           (assoc-ref %build-inputs "mumps") "/include")
+           ,(string-append "--with-mumps-lib=["
+                           (assoc-ref %build-inputs "mumps") "/lib/"
+                           "libdmumps.a,"
+                           "libzmumps.a,"
+                           "libsmumps.a,"
+                           "libcmumps.a,"
+                           "libmumps_common.a,"
+                           "libpord.a]")
+           ,(string-append "--with-scalapack-lib="
+                           (assoc-ref %build-inputs "scalapack") "/lib/"
+                           "libscalapack.so")
+           ,(string-append "--with-ptscotch-include="
+                           (assoc-ref %build-inputs "scotch") "/include")
+           ,(string-append "--with-ptscotch-lib=["
+                           (assoc-ref %build-inputs "scotch") "/lib/"
+                           "libesmumps.a,"
+                           "libscotch.a,"
+                           "libscotcherr.a,"
+                           "libptesmumps.a,"
+                           "libptscotch.a,"
+                           "libptscotcherr.a]")
+           ,@,cf))))
+    (synopsis "Library to solve PDEs (with MUMPS and MPI support)")))
 
 (define-public python-kiwisolver
   (package
-- 
1.8.3.1