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diff --git a/var/spack/repos/builtin/packages/pastix/package.py b/var/spack/repos/builtin/packages/pastix/package.py
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+++ b/var/spack/repos/builtin/packages/pastix/package.py
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+# Copyright 2013-2022 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)
+
+
+class Pastix(CMakePackage, CudaPackage):
+    """a high performance parallel solver for very large sparse linear systems
+       based on direct methods"""
+    homepage = "https://gitlab.inria.fr/solverstack/pastix/blob/master/README.md"
+    url      = "https://gitlab.inria.fr/solverstack/pastix/uploads/baa57033d98378e0f3affbf45900fb6e/pastix-6.2.1.tar.gz"
+    git      = "https://gitlab.inria.fr/solverstack/pastix.git"
+    maintainers = ['fpruvost', 'mfaverge', 'ramet']
+
+    version('master', branch='master', submodules=True)
+    version('6.2.1', '50742cc0e6e03728f7529fc607d5c65b9e14205f192947678d6103a872a6210c')
+
+    # cmake's specific
+    variant('shared', default=True, description='Build Pastix as a shared library')
+
+    # pastix's specific
+    variant('doc', default=False, description='Enable documentation')
+    variant('int64', default=False, description='To use 64 bits integers')
+    variant('metis', default=False, description='Enable Metis')
+    variant('scotch', default=True, description='Enable Scotch')
+    variant(
+        'runtime', default='none', description='Runtime support',
+        values=('none', 'starpu'), multi=False
+    )
+    variant('cuda', default=False, when='runtime=starpu', description='Enable CUDA')
+    variant('mpi', default=False, description='Enable MPI')
+
+    # Dependencies
+    depends_on("pkgconfig", type='build')
+    depends_on("hwloc")
+    depends_on("lapack")
+    # ensure openblas use threads=openmp to be thread-safe
+    depends_on('openblas threads=openmp', when='^openblas')
+    with when("+metis"):
+        depends_on("metis@5.1:")
+        depends_on("metis@5.1:+int64", when='+int64')
+    with when("+scotch"):
+        depends_on("scotch~metis")
+        depends_on("scotch~metis+int64", when='+int64')
+        depends_on("scotch~metis~mpi", when='~mpi')
+    with when("runtime=starpu"):
+        depends_on("starpu")
+        depends_on("starpu~mpi", when='~mpi')
+        depends_on("starpu+mpi", when='+mpi')
+        depends_on("starpu~cuda", when='~cuda')
+        depends_on("starpu+cuda", when='+cuda')
+        depends_on("cuda", when='+cuda')
+    depends_on("mpi", when='+mpi')
+
+    def cmake_args(self):
+        spec = self.spec
+
+        args = [
+            "-Wno-dev",
+            self.define("CMAKE_COLOR_MAKEFILE", "ON"),
+            self.define("CMAKE_VERBOSE_MAKEFILE", "ON"),
+            self.define_from_variant("BUILD_SHARED_LIBS", "shared"),
+            self.define_from_variant("PASTIX_INT64", "int64"),
+            self.define_from_variant("PASTIX_ORDERING_METIS", "metis"),
+            self.define_from_variant("PASTIX_ORDERING_SCOTCH", "scotch"),
+            self.define("PASTIX_WITH_PARSEC", "OFF"),
+            self.define_from_variant("PASTIX_WITH_MPI", "mpi")
+        ]
+
+        if spec.satisfies('runtime=starpu'):
+            args.extend([self.define("PASTIX_WITH_STARPU", "ON")])
+            args.extend([self.define_from_variant("PASTIX_WITH_CUDA", "cuda")])
+
+        if ('^intel-mkl' in spec or '^intel-parallel-studio+mkl' in spec):
+            args.extend([self.define("BLA_VENDOR", "Intel10_64lp_seq")])
+        elif ('^netlib-lapack' in spec):
+            args.extend([self.define("BLA_VENDOR", "Generic")])
+        elif ('^openblas' in spec):
+            args.extend([self.define("BLA_VENDOR", "OpenBLAS")])
+
+        if spec.satisfies('+mpi'):
+            args.extend([
+                self.define("MPI_C_COMPILER", self.spec['mpi'].mpicc),
+                self.define("MPI_CXX_COMPILER", self.spec['mpi'].mpicxx),
+                self.define("MPI_Fortran_COMPILER", self.spec['mpi'].mpifc)
+            ])
+
+        return args