Set externals and providers to match axom

scripts/spack/configs/blueos_3_ppc64le_ib/packages.yaml

@@ -7,6 +7,7 @@ packages:
       lapack: [netlib-lapack]
       pkgconfig: [pkg-config]
       pil: [py-pillow]
+      mpi: [spectrum-mpi]
       zlib-api: [zlib]
   cmake:
     version: [3.20.2]
@@ -83,6 +84,14 @@ packages:
     - spec: [email protected]
       prefix: /collab/usr/gapps/python/build/spack-coralea.3/opt/spack/linux-rhel7-ppc64le/gcc-4.9.3/readline-7.0-owal6z2zh5zotgvdmwow6sgdn6cqfn43
     buildable: false
+  netlib-lapack:
+    buildable: false
+    externals:
+      # These have trailing underscores in their symbols
+    - spec: [email protected]%[email protected]
+      prefix: /usr/tcetmp/packages/lapack/lapack-3.9.0-P9-gcc-7.3.1/
+    - spec: [email protected]%[email protected]
+      prefix: /usr/tcetmp/packages/lapack/lapack-3.9.0-P9-gcc-7.3.1/
   autoconf:
     externals:
     - spec: [email protected]

scripts/spack/configs/toss_4_x86_64_ib/packages.yaml

@@ -5,8 +5,9 @@ packages:
     target: [ivybridge]
     compiler: [gcc, clang]
     providers:
-      blas: [netlib-lapack]
+      blas: [openblas]
       lapack: [netlib-lapack]
+      mpi: [mvapich2]
       pil: [py-pillow]
       pkgconfig: [pkg-config]
       zlib-api: [zlib]
@@ -40,6 +41,9 @@ packages:
     - spec: [email protected]%[email protected]~cuda~debug~regcache~wrapperrpath ch3_rank_bits=32
         file_systems=lustre,nfs,ufs process_managers=slurm
       prefix: /usr/tce/packages/mvapich2/mvapich2-2.3.6-gcc-10.3.1
+    - spec: [email protected]%[email protected]~alloca~cuda~debug+regcache+wrapperrpath ch3_rank_bits=32
+        fabrics=mrail file_systems=auto process_managers=slurm
+      prefix: /usr/tce/packages/mvapich2/mvapich2-2.3.6-clang-14.0.6
     buildable: false
 
 # ------ SYSTEM LIBS -------
@@ -152,3 +156,8 @@ packages:
     externals:
     - spec: [email protected]
       prefix: /usr
+  openblas:
+    buildable: false
+    externals:
+    - prefix: /usr
+      spec: [email protected]