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ducc
Commit 3439205f authored by Martin Reinecke's avatar Martin Reinecke
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pypocketfft/demos/bench.py
View file @ 3439205f
import numpy as np
import ducc_0_1.pypocketfft as pypocketfft
import ducc_0_1.fft as duccfft
from time import time
import matplotlib.pyplot as plt
......@@ -41,13 +41,12 @@ def measure_fftw_np_interface(a, nrepeat, nthr):
return tmin, b
def measure_pypocketfft(a, nrepeat, nthr):
import ducc_0_1.pypocketfft as ppf
def measure_duccfft(a, nrepeat, nthr):
tmin = 1e38
b = a.copy()
for i in range(nrepeat):
t0 = time()
b = ppf.c2c(a, out=b, forward=True, nthreads=nthr)
b = duccfft.c2c(a, out=b, forward=True, nthreads=nthr)
t1 = time()
tmin = min(tmin, t1-t0)
return tmin, b
......@@ -110,7 +109,7 @@ def bench_nd(ndim, nmax, nthr, ntry, tp, funcs, nrepeat, ttl="", filename="",
for n in range(ntry):
shp = np.random.randint(nmax//3, nmax+1, ndim)
if nice_sizes:
shp = np.array([pypocketfft.good_size(sz) for sz in shp])
shp = np.array([duccfft.good_size(sz) for sz in shp])
print(" {0:4d}/{1}: shape={2} ...".format(n, ntry, shp), end=" ", flush=True)
a = (np.random.rand(*shp)-0.5 + 1j*(np.random.rand(*shp)-0.5)).astype(tp)
output=[]
......@@ -130,8 +129,8 @@ def bench_nd(ndim, nmax, nthr, ntry, tp, funcs, nrepeat, ttl="", filename="",
plt.show()
funcs = (measure_pypocketfft, measure_fftw)
ttl = "pypocketfft/FFTW()"
funcs = (measure_duccfft, measure_fftw)
ttl = "duccfft/FFTW()"
ntry=100
nthr = 1
nice_sizes = True
......
pypocketfft/demos/stress.py
View file @ 3439205f
import numpy as np
import ducc_0_1.pypocketfft as pypocketfft
import ducc_0_1.fft as fft
def _l2error(a, b, axes):
......@@ -7,23 +7,23 @@ def _l2error(a, b, axes):
def fftn(a, axes=None, inorm=0, out=None, nthreads=1):
return pypocketfft.c2c(a, axes=axes, forward=True, inorm=inorm,
out=out, nthreads=nthreads)
return fft.c2c(a, axes=axes, forward=True, inorm=inorm,
out=out, nthreads=nthreads)
def ifftn(a, axes=None, inorm=0, out=None, nthreads=1):
return pypocketfft.c2c(a, axes=axes, forward=False, inorm=inorm,
out=out, nthreads=nthreads)
return fft.c2c(a, axes=axes, forward=False, inorm=inorm,
out=out, nthreads=nthreads)
def rfftn(a, axes=None, inorm=0, nthreads=1):
return pypocketfft.r2c(a, axes=axes, forward=True, inorm=inorm,
nthreads=nthreads)
return fft.r2c(a, axes=axes, forward=True, inorm=inorm,
nthreads=nthreads)
def irfftn(a, axes=None, lastsize=0, inorm=0, nthreads=1):
return pypocketfft.c2r(a, axes=axes, lastsize=lastsize, forward=False,
inorm=inorm, nthreads=nthreads)
return fft.c2r(a, axes=axes, lastsize=lastsize, forward=False,
inorm=inorm, nthreads=nthreads)
nthreads = 0
......@@ -69,71 +69,71 @@ def test(err):
b = irfftn(rfftn(a.real.astype(np.float32), axes=axes, nthreads=nthreads),
axes=axes, inorm=2, lastsize=lastsize, nthreads=nthreads)
err = update_err(err, "rmaxf", _l2error(a.real.astype(np.float32), b, axes), shape)
b = pypocketfft.separable_hartley(
pypocketfft.separable_hartley(a.real, axes=axes, nthreads=nthreads),
b = fft.separable_hartley(
fft.separable_hartley(a.real, axes=axes, nthreads=nthreads),
axes=axes, inorm=2, nthreads=nthreads)
err = update_err(err, "hmax", _l2error(a.real, b, axes), shape)
b = pypocketfft.genuine_hartley(
pypocketfft.genuine_hartley(a.real, axes=axes, nthreads=nthreads),
b = fft.genuine_hartley(
fft.genuine_hartley(a.real, axes=axes, nthreads=nthreads),
axes=axes, inorm=2, nthreads=nthreads)
err = update_err(err, "hmax", _l2error(a.real, b, axes), shape)
b = pypocketfft.separable_hartley(
pypocketfft.separable_hartley(
b = fft.separable_hartley(
fft.separable_hartley(
a.real.astype(np.float32), axes=axes, nthreads=nthreads),
axes=axes, inorm=2, nthreads=nthreads)
err = update_err(err, "hmaxf", _l2error(a.real.astype(np.float32), b, axes), shape)
b = pypocketfft.genuine_hartley(
pypocketfft.genuine_hartley(a.real.astype(np.float32), axes=axes,
b = fft.genuine_hartley(
fft.genuine_hartley(a.real.astype(np.float32), axes=axes,
nthreads=nthreads),
axes=axes, inorm=2, nthreads=nthreads)
err = update_err(err, "hmaxf", _l2error(a.real.astype(np.float32), b, axes), shape)
if all(a.shape[i] > 1 for i in axes):
b = pypocketfft.dct(
pypocketfft.dct(a.real, axes=axes, nthreads=nthreads, type=1),
b = fft.dct(
fft.dct(a.real, axes=axes, nthreads=nthreads, type=1),
axes=axes, type=1, nthreads=nthreads, inorm=2)
err = update_err(err, "c1max", _l2error(a.real, b, axes), shape)
b = pypocketfft.dct(
pypocketfft.dct(a_32.real, axes=axes, nthreads=nthreads, type=1),
b = fft.dct(
fft.dct(a_32.real, axes=axes, nthreads=nthreads, type=1),
axes=axes, type=1, nthreads=nthreads, inorm=2)
err = update_err(err, "c1maxf", _l2error(a_32.real, b, axes), shape)
b = pypocketfft.dct(
pypocketfft.dct(a.real, axes=axes, nthreads=nthreads, type=2),
b = fft.dct(
fft.dct(a.real, axes=axes, nthreads=nthreads, type=2),
axes=axes, type=3, nthreads=nthreads, inorm=2)
err = update_err(err, "c23max", _l2error(a.real, b, axes), shape)
b = pypocketfft.dct(
pypocketfft.dct(a_32.real, axes=axes, nthreads=nthreads, type=2),
b = fft.dct(
fft.dct(a_32.real, axes=axes, nthreads=nthreads, type=2),
axes=axes, type=3, nthreads=nthreads, inorm=2)
err = update_err(err, "c23maxf", _l2error(a_32.real, b, axes), shape)
b = pypocketfft.dct(
pypocketfft.dct(a.real, axes=axes, nthreads=nthreads, type=4),
b = fft.dct(
fft.dct(a.real, axes=axes, nthreads=nthreads, type=4),
axes=axes, type=4, nthreads=nthreads, inorm=2)
err = update_err(err, "c4max", _l2error(a.real, b, axes), shape)
b = pypocketfft.dct(
pypocketfft.dct(a_32.real, axes=axes, nthreads=nthreads, type=4),
b = fft.dct(
fft.dct(a_32.real, axes=axes, nthreads=nthreads, type=4),
axes=axes, type=4, nthreads=nthreads, inorm=2)
err = update_err(err, "c4maxf", _l2error(a_32.real, b, axes), shape)
b = pypocketfft.dst(
pypocketfft.dst(a.real, axes=axes, nthreads=nthreads, type=1),
b = fft.dst(
fft.dst(a.real, axes=axes, nthreads=nthreads, type=1),
axes=axes, type=1, nthreads=nthreads, inorm=2)
err = update_err(err, "s1max", _l2error(a.real, b, axes), shape)
b = pypocketfft.dst(
pypocketfft.dst(a_32.real, axes=axes, nthreads=nthreads, type=1),
b = fft.dst(
fft.dst(a_32.real, axes=axes, nthreads=nthreads, type=1),
axes=axes, type=1, nthreads=nthreads, inorm=2)
err = update_err(err, "s1maxf", _l2error(a_32.real, b, axes), shape)
b = pypocketfft.dst(
pypocketfft.dst(a.real, axes=axes, nthreads=nthreads, type=2),
b = fft.dst(
fft.dst(a.real, axes=axes, nthreads=nthreads, type=2),
axes=axes, type=3, nthreads=nthreads, inorm=2)
err = update_err(err, "s23max", _l2error(a.real, b, axes), shape)
b = pypocketfft.dst(
pypocketfft.dst(a_32.real, axes=axes, nthreads=nthreads, type=2),
b = fft.dst(
fft.dst(a_32.real, axes=axes, nthreads=nthreads, type=2),
axes=axes, type=3, nthreads=nthreads, inorm=2)
err = update_err(err, "s23maxf", _l2error(a_32.real, b, axes), shape)
b = pypocketfft.dst(
pypocketfft.dst(a.real, axes=axes, nthreads=nthreads, type=4),
b = fft.dst(
fft.dst(a.real, axes=axes, nthreads=nthreads, type=4),
axes=axes, type=4, nthreads=nthreads, inorm=2)
err = update_err(err, "s4max", _l2error(a.real, b, axes), shape)
b = pypocketfft.dst(
pypocketfft.dst(a_32.real, axes=axes, nthreads=nthreads, type=4),
b = fft.dst(
fft.dst(a_32.real, axes=axes, nthreads=nthreads, type=4),
axes=axes, type=4, nthreads=nthreads, inorm=2)
err = update_err(err, "s4maxf", _l2error(a_32.real, b, axes), shape)
......
pypocketfft/pypocketfft.cc
View file @ 3439205f
......@@ -652,7 +652,7 @@ out : int
void add_pypocketfft(py::module &msup)
{
using namespace pybind11::literals;
auto m = msup.def_submodule("pypocketfft");
auto m = msup.def_submodule("fft");
m.doc() = pypocketfft_DS;
m.def("c2c", c2c, c2c_DS, "a"_a, "axes"_a=None, "forward"_a=true,
"inorm"_a=0, "out"_a=None, "nthreads"_a=1);
......
pypocketfft/test/test_pypocketfft.py
View file @ 3439205f
import ducc_0_1.pypocketfft as pypocketfft
import ducc_0_1.fft as fft
# import pyfftw
import numpy as np
import pytest
......@@ -25,33 +25,33 @@ def _assert_close(a, b, epsilon):
def fftn(a, axes=None, inorm=0, out=None, nthreads=1):
return pypocketfft.c2c(a, axes=axes, forward=True, inorm=inorm,
return fft.c2c(a, axes=axes, forward=True, inorm=inorm,
out=out, nthreads=nthreads)
def ifftn(a, axes=None, inorm=0, out=None, nthreads=1):
return pypocketfft.c2c(a, axes=axes, forward=False, inorm=inorm,
return fft.c2c(a, axes=axes, forward=False, inorm=inorm,
out=out, nthreads=nthreads)
def rfftn(a, axes=None, inorm=0, nthreads=1):
return pypocketfft.r2c(a, axes=axes, forward=True, inorm=inorm,
return fft.r2c(a, axes=axes, forward=True, inorm=inorm,
nthreads=nthreads)
def irfftn(a, axes=None, lastsize=0, inorm=0, nthreads=1):
return pypocketfft.c2r(a, axes=axes, lastsize=lastsize, forward=False,
return fft.c2r(a, axes=axes, lastsize=lastsize, forward=False,
inorm=inorm, nthreads=nthreads)
def rfft_scipy(a, axis, inorm=0, out=None, nthreads=1):
return pypocketfft.r2r_fftpack(a, axes=(axis,), real2hermitian=True,
return fft.r2r_fftpack(a, axes=(axis,), real2hermitian=True,
forward=True, inorm=inorm, out=out,
nthreads=nthreads)
def irfft_scipy(a, axis, inorm=0, out=None, nthreads=1):
return pypocketfft.r2r_fftpack(a, axes=(axis,), real2hermitian=False,
return fft.r2r_fftpack(a, axes=(axis,), real2hermitian=False,
forward=False, inorm=inorm, out=out,
nthreads=nthreads)
......@@ -194,7 +194,7 @@ def test_identity_r2(shp):
def test_genuine_hartley(shp):
rng = np.random.default_rng(np.random.SeedSequence(42))
a = rng.random(shp)-0.5
v1 = pypocketfft.genuine_hartley(a)
v1 = fft.genuine_hartley(a)
v2 = fftn(a.astype(np.complex128))
v2 = v2.real+v2.imag
assert_(_l2error(v1, v2) < 1e-15)
......@@ -204,7 +204,7 @@ def test_genuine_hartley(shp):
def test_hartley_identity(shp):
rng = np.random.default_rng(np.random.SeedSequence(42))
a = rng.random(shp)-0.5
v1 = pypocketfft.separable_hartley(pypocketfft.separable_hartley(a))/a.size
v1 = fft.separable_hartley(fft.separable_hartley(a))/a.size
assert_(_l2error(a, v1) < 1e-15)
......@@ -212,11 +212,11 @@ def test_hartley_identity(shp):
def test_genuine_hartley_identity(shp):
rng = np.random.default_rng(np.random.SeedSequence(42))
a = rng.random(shp)-0.5
v1 = pypocketfft.genuine_hartley(pypocketfft.genuine_hartley(a))/a.size
v1 = fft.genuine_hartley(fft.genuine_hartley(a))/a.size
assert_(_l2error(a, v1) < 1e-15)
v1 = a.copy()
assert_(pypocketfft.genuine_hartley(
pypocketfft.genuine_hartley(v1, out=v1), inorm=2, out=v1) is v1)
assert_(fft.genuine_hartley(
fft.genuine_hartley(v1, out=v1), inorm=2, out=v1) is v1)
assert_(_l2error(a, v1) < 1e-15)
......@@ -225,7 +225,7 @@ def test_genuine_hartley_identity(shp):
def test_genuine_hartley_2D(shp, axes):
rng = np.random.default_rng(np.random.SeedSequence(42))
a = rng.random(shp)-0.5
assert_(_l2error(pypocketfft.genuine_hartley(pypocketfft.genuine_hartley(
assert_(_l2error(fft.genuine_hartley(fft.genuine_hartley(
a, axes=axes), axes=axes, inorm=2), a) < 1e-15)
......@@ -240,5 +240,5 @@ def testdcst1D(len, inorm, type, dtype):
itp = (0, 1, 3, 2, 4)
itype = itp[type]
if type != 1 or len > 1: # there are no length-1 type 1 DCTs
_assert_close(a, pypocketfft.dct(pypocketfft.dct(a, inorm=inorm, type=type), inorm=2-inorm, type=itype), eps)
_assert_close(a, pypocketfft.dst(pypocketfft.dst(a, inorm=inorm, type=type), inorm=2-inorm, type=itype), eps)
_assert_close(a, fft.dct(fft.dct(a, inorm=inorm, type=type), inorm=2-inorm, type=itype), eps)
_assert_close(a, fft.dst(fft.dst(a, inorm=inorm, type=type), inorm=2-inorm, type=itype), eps)
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