From 89f32d51f35da7158d01cab5fb6ef9b98b03009b Mon Sep 17 00:00:00 2001
From: Mosè Giordano <giordano@users.noreply.github.com>
Date: Thu, 16 Jun 2022 08:00:09 +0100
Subject: grid: add new package (#31133)

---
 var/spack/repos/builtin/packages/grid/package.py | 120 +++++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 var/spack/repos/builtin/packages/grid/package.py

diff --git a/var/spack/repos/builtin/packages/grid/package.py b/var/spack/repos/builtin/packages/grid/package.py
new file mode 100644
index 0000000000..f868743efc
--- /dev/null
+++ b/var/spack/repos/builtin/packages/grid/package.py
@@ -0,0 +1,120 @@
+# 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)
+
+from spack.package import *
+
+
+class Grid(AutotoolsPackage):
+    """Data parallel C++ mathematical object library."""
+
+    homepage = "https://github.com/paboyle/Grid"
+    url      = "https://github.com/paboyle/Grid/archive/refs/tags/0.8.2.tar.gz"
+    git      = "https://github.com/paboyle/Grid.git"
+
+    maintainers = ['giordano']
+
+    version('develop', branch='develop')
+
+    variant('comms', default='mpi',
+            values=('none', 'mpi', 'mpi3', conditional('shmem', when='^cray-mpich')),
+            description='Choose communication interface')
+    variant('fftw', default=True, description='Activate FFTW support')
+    variant('lapack', default=False, description='Activate LAPACK support')
+    variant('hdf5', default=False, description='Activate HDF5 support')
+    variant('lime', default=False, description='Activate LIME support')
+    variant('doxygen-doc', default=False,
+            description='Build the documentation with doxygen')
+    variant('gen-simd-width', default='64',
+            description='Size (in bytes) of the generic SIMD vector type')
+    variant('rng', default='sitmo', values=('sitmo', 'ranlux48', 'mt19937'),
+            multi=False, description='RNG setting')
+    variant('timers', default=True,
+            description='System dependent high-resolution timers')
+    variant('chroma', default=False,
+            description='Chroma regression tests')
+
+    depends_on('autoconf', type='build')
+    depends_on('automake', type='build')
+    depends_on('libtool',  type='build')
+    depends_on('m4',       type='build')
+    depends_on('gmp')
+    depends_on('mpfr')
+    depends_on('openssl')
+
+    depends_on('mpi', when='comms=mpi')
+    depends_on('cray-mpich', when='comms=shmem')
+    depends_on('mpi@3:', when='comms=mpi3')
+
+    depends_on('fftw-api@3', when='+fftw')
+
+    depends_on('lapack', when='+lapack')
+
+    depends_on('hdf5', when='+hdf5')
+
+    depends_on('c-lime', when='+lime')
+
+    depends_on("doxygen", type="build", when="+doxygen-doc")
+
+    def autoreconf(self, spec, prefix):
+        Executable('./bootstrap.sh')()
+
+    def configure_args(self):
+        spec = self.spec
+        args = ['--with-gmp', '--with-mpfr']
+
+        if spec.satisfies('^intel-mkl'):
+            if '+fftw' in spec or '+lapack' in spec:
+                args.append('--enable-mkl')
+        else:
+            if '+fftw' in spec:
+                args.append('--with-fftw={0}'.format(self.spec['fftw'].prefix))
+            if '+lapack' in spec:
+                args.append('--enable-lapack={0}'.format(self.spec['lapack'].prefix))
+                # lapack is searched only as `-llapack`, so anything else
+                # wouldn't be found, causing an error.
+                args.append('LIBS={0}'.format(self.spec['lapack'].libs.ld_flags))
+
+        if 'comms=none' not in spec:
+            # The build system can easily get very confused about MPI support
+            # and what linker to use.  In many case it'd end up building the
+            # code with support for MPI but without using `mpicxx` or linking to
+            # `-lmpi`, wreaking havoc.  Forcing `CXX` to be mpicxx should help.
+            args.extend([
+                "CC={0}".format(spec['mpi'].mpicc),
+                "CXX={0}".format(spec['mpi'].mpicxx),
+            ])
+
+        args += self.enable_or_disable('timers')
+        args += self.enable_or_disable('chroma')
+        args += self.enable_or_disable('doxygen-doc')
+
+        if 'avx512' in spec.target:
+            args.append('--enable-simd=AVX512')
+        elif 'avx2' in spec.target:
+            args.append('--enable-simd=AVX2')
+        elif 'avx' in spec.target:
+            if 'fma4' in spec.target:
+                args.append('--enable-simd=AVXFMA4')
+            elif 'fma' in spec.target:
+                args.append('--enable-simd=AVXFMA')
+            else:
+                args.append('--enable-simd=AVX')
+        elif 'sse4_2' in spec.target:
+            args.append('--enable-simd=SSE4')
+        elif spec.target == 'a64fx':
+            args.append('--enable-simd=A64FX')
+        elif 'neon' in spec.target:
+            args.append('--enable-simd=NEONv8')
+        else:
+            args.extend([
+                '--enable-simd=GEN',
+                '--enable-gen-simd-width={0}'.format(
+                    spec.variants['gen-simd-width'].value)
+            ])
+
+        args.append('--enable-comms={0}'.format(spec.variants['comms'].value))
+        args.append('--enable-rng={0}'.format(spec.variants['rng'].value))
+
+        return args
-- 
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