eigenexa: fix build error and add test method (#21692)

var/spack/repos/builtin/packages/eigenexa/gcc_compiler.patch

@@ -0,0 +1,29 @@
+--- a/configure.ac
++++ c/configure.ac
+@@ -440,7 +440,7 @@ else
+     FFLAGS=${I_BASE}" -Ofast "${I_ARCH}
+     
+   elif test x"${FC_ACT}" = x"gfortran"; then
+-    FFLAGS=${G_BASE}" -O3 "${G_ARCH}
++    FFLAGS=${G_BASE}" -O3 -fopenmp "${G_ARCH}
+     
+   elif test x"${FC_ACT}" = x"mpifrtpx"; then
+     FFLAGS=${F_BASE}" -Kfast,ocl,simd,swp "${F_ARCH}
+@@ -465,7 +465,7 @@ else
+     FCFLAGS=${I_BASE}" -Ofast "${I_ARCH}
+     
+   elif test x"${FC_ACT}" = x"gfortran"; then
+-    FCFLAGS=${G_BASE}" -O3 "${G_ARCH}
++    FCFLAGS=${G_BASE}" -O3 -fopenmp "${G_ARCH}
+     
+   elif test x"${FC_ACT}" = x"mpifrtpx"; then
+     FCFLAGS=${F_BASE}" -Kfast,ocl,simd,swp "${F_ARCH}
+@@ -486,7 +486,7 @@ if   test x"${FC_ACT}" = x"ifort"; then
+   FFLAGS0=${I_BASE}" -O0 "
+   
+ elif test x"${FC_ACT}" = x"gfortran"; then
+-  FFLAGS0=${G_BASE}" -O0"
++  FFLAGS0=${G_BASE}" -O0 -fopenmp "
+   
+ elif test x"${FC_ACT}" = x"mpifrtpx"; then
+   FFLAGS0="-Kopenmp,openmp_ordered_reduction -Cpp"

var/spack/repos/builtin/packages/eigenexa/package.py

@@ -1,4 +1,4 @@
-# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
+# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
 # Spack Project Developers. See the top-level COPYRIGHT file for details.
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
@@ -25,8 +25,10 @@ class Eigenexa(AutotoolsPackage):
     depends_on("scalapack")
 
     patch("fj_compiler.patch", when="%fj")
+    patch("gcc_compiler.patch", when="%gcc")
 
     parallel = False
+    force_autoreconf = True
 
     def setup_build_environment(self, env):
         env.set("FC", self.spec["mpi"].mpifc, force=True)
@@ -47,3 +49,21 @@ def setup_build_environment(self, env):
                 )
             ),
         )
+
+    @run_after('install')
+    def cache_test_sources(self):
+        self.cache_extra_test_sources("benchmark")
+
+    def test(self):
+        test_dir = self.test_suite.current_test_data_dir
+        exe_name = join_path(test_dir, "run-test.sh")
+        mpi_name = self.spec["mpi"].prefix.bin.mpirun
+        test_file = join_path(
+            self.install_test_root, "benchmark", "eigenexa_benchmark"
+        )
+        input_file = join_path(self.install_test_root, "benchmark", "IN")
+        opts = [exe_name, mpi_name, '-n', '1', test_file, '-f', input_file]
+        env["OMP_NUM_THREADS"] = "1"
+        self.run_test(
+            "sh", options=opts, expected="EigenExa Test Passed !", work_dir=test_dir
+        )

var/spack/repos/builtin/packages/eigenexa/test/result-check.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+grep -q "Benchmark completed" $@
+if [ $? -eq 1 ]; then
+  echo "EigenExa Test Failed !"
+  exit 1
+fi
+
+while read line;do
+  case $line in
+    *'Eigenvalue Relative Error'* )
+      tmp=$line
+      read line
+      if [[ "$line" != '|w| is too small, so it is not severe.' ]]; then
+        echo "${tmp}" >> output.txt
+      fi
+      ;;
+    *'Eigenvalue Absolute Error'* )
+      tmp=$line
+      read line
+      if [ "$line" != 'Do not mind it. Condition number is too large.' ] && \
+         [ "$line" != 'Do not mind it. Relative error is small enough' ]; then
+         echo "${tmp}" >> output.txt
+      fi
+      ;;
+    *'Residual Error Test'* | *'Orthogonality  Test'* ) 
+      echo "${line}" >> output.txt ;;
+  esac
+done < $@
+
+grep -q "FAILED" output.txt
+if [ $? -eq 1 ]; then
+  echo "EigenExa Test Passed !"
+elif [ $? -eq 0 ]; then
+  echo "EigenExa Test Failed !"
+fi

var/spack/repos/builtin/packages/eigenexa/test/run-test.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+$@ 2>&1 | tee  run_test_results.txt
+result-check.sh run_test_results.txt