Add cmake file for ScaLAPACK

Author: pghysels

cmake/Modules/FindScaLAPACK.cmake

@@ -0,0 +1,17 @@
+if (NOT (TPL_SCALAPACK_LIBRARIES))
+  find_library(SCALAPACK_LIBRARY
+    NAMES scalapack scalapack-pvm scalapack-mpi scalapack-mpich scalapack-mpich2 scalapack-openmpi scalapack-lam
+    PATHS /usr/lib64 /usr/lib /usr/local/lib64 /usr/local/lib /sw/lib /usr/lib64/openmpi/lib /usr/lib64/mpich/lib
+    ENV LD_LIBRARY_PATH ENV SCALAPACKDIR ENV BLACSDIR)
+  find_library(BLACS_LIBRARY
+    NAMES blacs blacs-pvm blacs-mpi blacs-mpich blacs-mpich2 blacs-openmpi blacs-lam mpiblacs scalapack ${SCALAPACK_LIBRARY}
+    PATHS /usr/lib64 /usr/lib /usr/local/lib64 /usr/local/lib /sw/lib /usr/lib64/openmpi/lib /usr/lib64/mpich/lib
+    ENV LD_LIBRARY_PATH ENV SCALAPACKDIR ENV BLACSDIR)
+  set(SCALAPACK_LIBRARIES ${SCALAPACK_LIBRARY} ${BLACS_LIBRARY})
+else()
+  set(SCALAPACK_LIBRARIES ${TPL_SCALAPACK_LIBRARIES})
+endif()
+
+# Report the found libraries, quit with fatal error if any required library has not been found.
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(SCALAPACK DEFAULT_MSG SCALAPACK_LIBRARIES)