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pypocketfft
Commit b87f51f5 authored by Martin Reinecke's avatar Martin Reinecke
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use system sin/cos

parent 189bffbf
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Showing with 80 additions and 304 deletions
bench.py
View file @ b87f51f5
import numpy as np
import pypocketfft
import pyfftw
from time import time
import matplotlib.pyplot as plt
import math
......@@ -108,7 +107,7 @@ def bench_nd(ndim, nmax, ntry, tp, funcs, nrepeat, ttl="", filename=""):
plt.show()
funcs = (measure_pypocketfft, measure_fftw)
funcs = (measure_pypocketfft, measure_fftw_np_interface)
ttl = "pypocketfft/FFTW()"
bench_nd(1, 8192, 100, "c16", funcs, 10, ttl, "1d.png")
bench_nd(2, 2048, 100, "c16", funcs, 2, ttl, "2d.png")
......
pocketfft_hdronly.h
View file @ b87f51f5
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stress.py
View file @ b87f51f5
......@@ -2,8 +2,10 @@ import numpy as np
import pypocketfft
def _l2error(a, b):
return np.sqrt(np.sum(np.abs(a-b)**2)/np.sum(np.abs(a)**2))
np.random.seed(42)
def _l2error(a, b, axes):
return np.sqrt(np.sum(np.abs(a-b)**2)/np.sum(np.abs(a)**2))/np.log2(np.max([2,np.prod(np.take(a.shape,axes))]))
def fftn(a, axes=None, inorm=0, out=None, nthreads=1):
......@@ -26,7 +28,7 @@ def irfftn(a, axes=None, lastsize=0, inorm=0, nthreads=1):
inorm=inorm, nthreads=nthreads)
nthreads = 0
nthreads = 1
def update_err(err, name, value):
......@@ -40,9 +42,9 @@ def update_err(err, name, value):
def test(err):
ndim = np.random.randint(1, 5)
ndim = 3# np.random.randint(1, 5)
axlen = int((2**20)**(1./ndim))
shape = np.random.randint(1, axlen, ndim)
shape = (np.random.randint(1, axlen, ndim)//2)*2+1
axes = np.arange(ndim)
np.random.shuffle(axes)
nax = np.random.randint(1, ndim+1)
......@@ -52,85 +54,85 @@ def test(err):
a_32 = a.astype(np.complex64)
b = ifftn(fftn(a, axes=axes, nthreads=nthreads), axes=axes, inorm=2,
nthreads=nthreads)
err = update_err(err, "cmax", _l2error(a, b))
err = update_err(err, "cmax", _l2error(a, b, axes))
b = ifftn(fftn(a.real, axes=axes, nthreads=nthreads), axes=axes, inorm=2,
nthreads=nthreads)
err = update_err(err, "cmax", _l2error(a.real, b))
err = update_err(err, "cmax", _l2error(a.real, b, axes))
b = fftn(ifftn(a.real, axes=axes, nthreads=nthreads), axes=axes, inorm=2,
nthreads=nthreads)
err = update_err(err, "cmax", _l2error(a.real, b))
err = update_err(err, "cmax", _l2error(a.real, b, axes))
b = irfftn(rfftn(a.real, axes=axes, nthreads=nthreads), axes=axes, inorm=2,
lastsize=lastsize, nthreads=nthreads)
err = update_err(err, "rmax", _l2error(a.real, b))
err = update_err(err, "rmax", _l2error(a.real, b, axes))
b = ifftn(fftn(a.astype(np.complex64), axes=axes, nthreads=nthreads),
axes=axes, inorm=2, nthreads=nthreads)
err = update_err(err, "cmaxf", _l2error(a.astype(np.complex64), b))
err = update_err(err, "cmaxf", _l2error(a.astype(np.complex64), b, axes))
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))
err = update_err(err, "rmaxf", _l2error(a.real.astype(np.float32), b, axes))
b = pypocketfft.separable_hartley(
pypocketfft.separable_hartley(a.real, axes=axes, nthreads=nthreads),
axes=axes, inorm=2, nthreads=nthreads)
err = update_err(err, "hmax", _l2error(a.real, b))
err = update_err(err, "hmax", _l2error(a.real, b, axes))
b = pypocketfft.genuine_hartley(
pypocketfft.genuine_hartley(a.real, axes=axes, nthreads=nthreads),
axes=axes, inorm=2, nthreads=nthreads)
err = update_err(err, "hmax", _l2error(a.real, b))
err = update_err(err, "hmax", _l2error(a.real, b, axes))
b = pypocketfft.separable_hartley(
pypocketfft.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))
err = update_err(err, "hmaxf", _l2error(a.real.astype(np.float32), b, axes))
b = pypocketfft.genuine_hartley(
pypocketfft.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))
err = update_err(err, "hmaxf", _l2error(a.real.astype(np.float32), b, axes))
if all(a.shape[i] > 1 for i in axes):
b = pypocketfft.dct(
pypocketfft.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))
err = update_err(err, "c1max", _l2error(a.real, b, axes))
b = pypocketfft.dct(
pypocketfft.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))
err = update_err(err, "c1maxf", _l2error(a_32.real, b, axes))
b = pypocketfft.dct(
pypocketfft.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))
err = update_err(err, "c23max", _l2error(a.real, b, axes))
b = pypocketfft.dct(
pypocketfft.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))
err = update_err(err, "c23maxf", _l2error(a_32.real, b, axes))
b = pypocketfft.dct(
pypocketfft.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))
err = update_err(err, "c4max", _l2error(a.real, b, axes))
b = pypocketfft.dct(
pypocketfft.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))
err = update_err(err, "c4maxf", _l2error(a_32.real, b, axes))
b = pypocketfft.dst(
pypocketfft.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))
err = update_err(err, "s1maxf", _l2error(a_32.real, b, axes))
b = pypocketfft.dst(
pypocketfft.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))
err = update_err(err, "s23max", _l2error(a.real, b, axes))
b = pypocketfft.dst(
pypocketfft.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))
err = update_err(err, "s23maxf", _l2error(a_32.real, b, axes))
b = pypocketfft.dst(
pypocketfft.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))
err = update_err(err, "s4max", _l2error(a.real, b, axes))
b = pypocketfft.dst(
pypocketfft.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))
err = update_err(err, "s4maxf", _l2error(a_32.real, b, axes))
err = dict()
......
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