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# Copyright 2013-2023 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 Minigmg(Package):
"""miniGMG is a compact benchmark for understanding the performance
challenges associated with geometric multigrid solvers
found in applications built from AMR MG frameworks
like CHOMBO or BoxLib when running
on modern multi- and manycore-based supercomputers.
It includes both productive reference examples as well as
highly-optimized implementations for CPUs and GPUs.
It is sufficiently general that it has been used to evaluate
a broad range of research topics including PGAS programming models
and algorithmic tradeoffs inherit in multigrid. miniGMG was developed
under the CACHE Joint Math-CS Institute.
Note, miniGMG code has been supersceded by HPGMG."""
homepage = (
"http://crd.lbl.gov/departments/computer-science/PAR/research/previous-projects/miniGMG/"
)
url = "https://crd.lbl.gov/assets/Uploads/FTG/Projects/miniGMG/miniGMG.tar.gz"
license("BSD-3-Clause-LBNL")
version("master", sha256="1c2d27496a881f655f5e849d6a7a132625e535739f82575991c511cc2cf899ac")
variant(
"vec",
default="ompif",
description="Which method of vectorisation to use",
values=("ompif", "sse", "avx", "simde"),
multi=False,
)
variant("opt", default=False, description="Enable optimization flags for improved OpenMP")
depends_on("mpi")
# Set up SIMD Everywhere config
depends_on("simde", when="vec=simde")
patch("simde.patch", when="vec=simde")
# Patch to add timer for Aarch64 rather than rdtsc
patch("aarch64_time.patch", when="target=aarch64:")
# Replaces inline with inline static, for correct syntax
patch("inline_static.patch")
def install(self, spec, prefix):
cc = Executable(spec["mpi"].mpicc)
args = []
# Default optimisation level
if spec.satisfies("+opt"):
if self.spec.satisfies("%nvhpc"):
args.append("-fast")
else:
args.append("-Ofast")
else:
args.append("-O3")
# Add OpenMP flag
args += [self.compiler.openmp_flag]
args += ["miniGMG.c", "mg.c", "box.c", "solver.c"]
# Set the correct operators file - using the vec variant
if spec.satisfies("vec=sse"):
args += ["operators.sse.c"]
elif spec.satisfies("vec=avx"):
args += ["operators.avx.c"]
elif spec.satisfies("vec=simde"):
args += ["operators.simde.c"]
else:
args += ["operators.ompif.c"]
# Switch out timer file (depends on patch)
if spec.satisfies("target=aarch64:"):
args += ["timer.aarch64.c"]
else:
args += ["timer.x86.c"]
args += ["-D__MPI"]
if spec.satisfies("+opt"):
args += ["-D__PREFETCH_NEXT_PLANE_FROM_DRAM"]
args += ["-D__FUSION_RESIDUAL_RESTRICTION"]
else:
args += ["-D__COLLABORATIVE_THREADING=6"]
args += ["-D__TEST_MG_CONVERGENCE", "-D__PRINT_NORM", "-D__USE_BICGSTAB"]
args += ["-o", "run.miniGMG", "-lm"]
cc(*args)
mkdir(prefix.bin)
install("run.miniGMG", prefix.bin)
mkdir(prefix.jobs)
install("job*", prefix.jobs)
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