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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)
import glob
from spack.package import *
class Ffte(Package):
"""Fastest Fourier Transform in the East. Provides FFT for powers of 2, 3,
and 5 lengths in one, two, and three dimensions. Support for vector
hardware, MPI, and CUDA Fortran is also included."""
homepage = "http://www.ffte.jp/"
url = "http://www.ffte.jp/ffte-7.0.tgz"
maintainers("luszczek")
version("7.0", sha256="078d5f84a5f2479ca5c4a3bd777ad761fe98addf1642a045bac6602a0cae3da0")
version("6.0", sha256="fc82595a8f8323b2796cc5eeb1cc9f7e50ca9e511a14365cc3984da6b7a9b8b4")
version("5.0", sha256="1f46ca16badc3aca0ad13ca91a6a67829a57b403501cdc821b80cfa62b2a89c2")
version("4.0", sha256="61680f73c48659ac45aec60ef5a725547f763bb9017edbd3f44a6a9ad0fda62f")
version("3.0", sha256="dbaab8204a16072c8d572efa3733e9946a9be0d1a051fc19e2d9253be23247ff")
version("2.0", sha256="f5cf1d1f880288e359f4d517191980ffca4420f817ecaa2d754ca5c5421271e3")
version("1.0", sha256="35171e3324019018c25575b2807a6513fa85badad040f30f238fff03d4b4d1ab")
variant("mpi", default=False, description="Build MPI library")
variant("cuda", default=False, description="Use CUDA Fortran")
variant("vector", default=False, description="Use vectorized FFT")
depends_on("mpi", when="+mpi")
requires("%nvhpc", when="+cuda", msg="ffte+cuda must use NVHPC compiler")
def edit(self, spec, prefix):
"No make-file, must create one from scratch."
open("mpi/param.h", "w").write(open("param.h").read())
for fpfx in (".", "mpi"):
vrs = "%sfftever" % ["", "", "", "p"][len(fpfx)]
s6 = 6 * " "
fd = open("%s/%s.f" % (fpfx, vrs), "w")
fd.write("%ssubroutine %s(i,j,k)\n" % (s6, vrs))
fd.write("%sinteger i,j,k\n" % s6)
fd.write("%si=%s\n" % (s6, spec.version[0]))
fd.write("%sj=%s\n" % (s6, spec.version[1]))
fd.write("%sk=0\n%sreturn\n%send\n" % (3 * (s6,)))
fd.close()
ff, cuf, vf = [], [], []
for f in glob.glob("%s/*.f" % fpfx):
nf = f.replace(".f", ".o").replace("%s/" % fpfx, "")
if "/cu" in f or "/pcu" in f:
cuf.append(nf)
elif "/v" in f or "/pv" in f:
vf.append(nf)
else:
ff.append(nf)
if "." == fpfx:
lbnm = "libffte.a"
else:
lbnm = "libfftempi.a"
for spc, vrf, rs, ip in (("+vector", vf, "v", 2), ("+cuda", cuf, "cu", 3)):
if spc in spec:
for f in vrf: # replace with variant versions
orgf = f[:ip].replace(rs, "") + f[ip:]
if orgf in ff: # already reference implementation?
del ff[ff.index(orgf)]
ff.extend(vrf)
aff = " ".join(ff)
fd = open("%s/Makefile" % fpfx, "w")
fd.write("all: %s\n" % lbnm)
if "+mpi" in spec and "." == fpfx:
fd.write("\tcd mpi ; $(MAKE)\n")
fd.write("\n%s: %s\n" % (lbnm, aff))
fd.write("\tar rc %s %s\n" % (lbnm, aff))
fd.write("\tranlib %s\n" % lbnm)
fd.close()
def install(self, spec, prefix):
self.edit(spec, prefix)
if "+mpi" in spec:
env["CC"] = spec["mpi"].mpicc
env["F77"] = spec["mpi"].mpif77
env["FC"] = spec["mpi"].mpifc
# allow real/complex aliasing in GNU Fortran 10 and up
if spec.satisfies("%gcc@10:"):
env["FFLAGS"] = "-fallow-argument-mismatch"
# enable CUDA Fortran in NVHPC
if spec.satisfies("%nvhpc"):
env["FFLAGS"] = "-Mcuda"
make()
mkdirp(prefix.lib)
install("libffte.a", prefix.lib)
if "+mpi" in spec:
install("mpi/libfftempi.a", prefix.lib)
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