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import imp
vdtnpfun= imp.load_dynamic('vdtnpfun','vdtnpfun_directory/vdtnpfun.so')
import vdtnpfun
print dir(vdtnpfun)
from vdt_ctypes import *
import numpy as np
import timeit
#print vdt_arch()
#print vdt_expf([1,2,3,4])
loadit('vdt_expf')
N=2001
xx = np.linspace(-np.pi, np.pi, N)
xf = np.linspace(-np.pi, np.pi, N)
x = np.linspace(-np.pi, np.pi, N)
def nsc() :
global xx
s = np.sin(xx)
c = np.cos(xx)
return (s,c)
def nscf() :
global xf
s = np.sin(xf)
c = np.cos(xf)
return (s,c)
def vsc() :
global x
return vdt_sincos(x)
def vscf() :
global x
return vdt_sincosf(x)
def nex() :
global xx
return np.exp(xx)
def nexf() :
global xf
return np.exp(xf)
def vex() :
global x
return vdt_exp(x)
def vexf() :
global x
return vdt_expf(x)
# (fscf, ftype) = VDTFunMap['vdt_sincosf']
(fexf, ftype) = VDTFunMap['vdt_expf']
requires = ['CONTIGUOUS', 'ALIGNED']
x = numpy.asanyarray(x)
x = numpy.require(x, ftype, requires)
vo1 = numpy.empty_like(x)
vo2 = numpy.empty_like(x)
xf = numpy.asanyarray(xf)
xf = numpy.require(xf, ftype, requires)
def vscff() :
global x
global fscf
global vo1
global vo2
fscf(x,vo1,vo2,x.size)
def vexff() :
global x
global fexf
global vo1
fexf(x,vo1,x.size)
def vexfm() :
global x
return vdtnpfun.vdt_exp(x)
def vexm() :
global xx
return vdtnpfun.vdt_exp(xx)
print "timing exp"
print timeit.timeit("nex()", setup="from __main__ import nex",number=100000), 'np exp'
print timeit.timeit("nexf()", setup="from __main__ import nexf",number=100000), 'np expf'
#print timeit.timeit("vexf()", setup="from __main__ import vexf",number=100000), 'vdt expf ctypes wrapped'
print timeit.timeit("vexff()", setup="from __main__ import vexff",number=100000), 'vdt expf ctypes'
print timeit.timeit("vexfm()", setup="from __main__ import vexfm",number=100000), 'vdt expf module'
print timeit.timeit("vexm()", setup="from __main__ import vexm",number=100000), 'vdt exp module'
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