|
|
"""test View objects"""
|
|
|
#-------------------------------------------------------------------------------
|
|
|
# Copyright (C) 2011 The IPython Development Team
|
|
|
#
|
|
|
# Distributed under the terms of the BSD License. The full license is in
|
|
|
# the file COPYING, distributed as part of this software.
|
|
|
#-------------------------------------------------------------------------------
|
|
|
|
|
|
#-------------------------------------------------------------------------------
|
|
|
# Imports
|
|
|
#-------------------------------------------------------------------------------
|
|
|
|
|
|
import time
|
|
|
from tempfile import mktemp
|
|
|
|
|
|
import zmq
|
|
|
|
|
|
from IPython import parallel as pmod
|
|
|
from IPython.parallel import error
|
|
|
from IPython.parallel import AsyncResult, AsyncHubResult, AsyncMapResult
|
|
|
from IPython.parallel import LoadBalancedView, DirectView
|
|
|
from IPython.parallel.util import interactive
|
|
|
|
|
|
from IPython.parallel.tests import add_engines
|
|
|
|
|
|
from .clienttest import ClusterTestCase, segfault, wait, skip_without
|
|
|
|
|
|
def setup():
|
|
|
add_engines(3)
|
|
|
|
|
|
class TestView(ClusterTestCase):
|
|
|
|
|
|
def test_segfault_task(self):
|
|
|
"""test graceful handling of engine death (balanced)"""
|
|
|
# self.add_engines(1)
|
|
|
ar = self.client[-1].apply_async(segfault)
|
|
|
self.assertRaisesRemote(error.EngineError, ar.get)
|
|
|
eid = ar.engine_id
|
|
|
while eid in self.client.ids:
|
|
|
time.sleep(.01)
|
|
|
self.client.spin()
|
|
|
|
|
|
def test_segfault_mux(self):
|
|
|
"""test graceful handling of engine death (direct)"""
|
|
|
# self.add_engines(1)
|
|
|
eid = self.client.ids[-1]
|
|
|
ar = self.client[eid].apply_async(segfault)
|
|
|
self.assertRaisesRemote(error.EngineError, ar.get)
|
|
|
eid = ar.engine_id
|
|
|
while eid in self.client.ids:
|
|
|
time.sleep(.01)
|
|
|
self.client.spin()
|
|
|
|
|
|
def test_push_pull(self):
|
|
|
"""test pushing and pulling"""
|
|
|
data = dict(a=10, b=1.05, c=range(10), d={'e':(1,2),'f':'hi'})
|
|
|
t = self.client.ids[-1]
|
|
|
v = self.client[t]
|
|
|
push = v.push
|
|
|
pull = v.pull
|
|
|
v.block=True
|
|
|
nengines = len(self.client)
|
|
|
push({'data':data})
|
|
|
d = pull('data')
|
|
|
self.assertEquals(d, data)
|
|
|
self.client[:].push({'data':data})
|
|
|
d = self.client[:].pull('data', block=True)
|
|
|
self.assertEquals(d, nengines*[data])
|
|
|
ar = push({'data':data}, block=False)
|
|
|
self.assertTrue(isinstance(ar, AsyncResult))
|
|
|
r = ar.get()
|
|
|
ar = self.client[:].pull('data', block=False)
|
|
|
self.assertTrue(isinstance(ar, AsyncResult))
|
|
|
r = ar.get()
|
|
|
self.assertEquals(r, nengines*[data])
|
|
|
self.client[:].push(dict(a=10,b=20))
|
|
|
r = self.client[:].pull(('a','b'), block=True)
|
|
|
self.assertEquals(r, nengines*[[10,20]])
|
|
|
|
|
|
def test_push_pull_function(self):
|
|
|
"test pushing and pulling functions"
|
|
|
def testf(x):
|
|
|
return 2.0*x
|
|
|
|
|
|
t = self.client.ids[-1]
|
|
|
v = self.client[t]
|
|
|
v.block=True
|
|
|
push = v.push
|
|
|
pull = v.pull
|
|
|
execute = v.execute
|
|
|
push({'testf':testf})
|
|
|
r = pull('testf')
|
|
|
self.assertEqual(r(1.0), testf(1.0))
|
|
|
execute('r = testf(10)')
|
|
|
r = pull('r')
|
|
|
self.assertEquals(r, testf(10))
|
|
|
ar = self.client[:].push({'testf':testf}, block=False)
|
|
|
ar.get()
|
|
|
ar = self.client[:].pull('testf', block=False)
|
|
|
rlist = ar.get()
|
|
|
for r in rlist:
|
|
|
self.assertEqual(r(1.0), testf(1.0))
|
|
|
execute("def g(x): return x*x")
|
|
|
r = pull(('testf','g'))
|
|
|
self.assertEquals((r[0](10),r[1](10)), (testf(10), 100))
|
|
|
|
|
|
def test_push_function_globals(self):
|
|
|
"""test that pushed functions have access to globals"""
|
|
|
@interactive
|
|
|
def geta():
|
|
|
return a
|
|
|
# self.add_engines(1)
|
|
|
v = self.client[-1]
|
|
|
v.block=True
|
|
|
v['f'] = geta
|
|
|
self.assertRaisesRemote(NameError, v.execute, 'b=f()')
|
|
|
v.execute('a=5')
|
|
|
v.execute('b=f()')
|
|
|
self.assertEquals(v['b'], 5)
|
|
|
|
|
|
def test_push_function_defaults(self):
|
|
|
"""test that pushed functions preserve default args"""
|
|
|
def echo(a=10):
|
|
|
return a
|
|
|
v = self.client[-1]
|
|
|
v.block=True
|
|
|
v['f'] = echo
|
|
|
v.execute('b=f()')
|
|
|
self.assertEquals(v['b'], 10)
|
|
|
|
|
|
def test_get_result(self):
|
|
|
"""test getting results from the Hub."""
|
|
|
c = pmod.Client(profile='iptest')
|
|
|
# self.add_engines(1)
|
|
|
t = c.ids[-1]
|
|
|
v = c[t]
|
|
|
v2 = self.client[t]
|
|
|
ar = v.apply_async(wait, 1)
|
|
|
# give the monitor time to notice the message
|
|
|
time.sleep(.25)
|
|
|
ahr = v2.get_result(ar.msg_ids)
|
|
|
self.assertTrue(isinstance(ahr, AsyncHubResult))
|
|
|
self.assertEquals(ahr.get(), ar.get())
|
|
|
ar2 = v2.get_result(ar.msg_ids)
|
|
|
self.assertFalse(isinstance(ar2, AsyncHubResult))
|
|
|
c.spin()
|
|
|
c.close()
|
|
|
|
|
|
def test_run_newline(self):
|
|
|
"""test that run appends newline to files"""
|
|
|
tmpfile = mktemp()
|
|
|
with open(tmpfile, 'w') as f:
|
|
|
f.write("""def g():
|
|
|
return 5
|
|
|
""")
|
|
|
v = self.client[-1]
|
|
|
v.run(tmpfile, block=True)
|
|
|
self.assertEquals(v.apply_sync(lambda f: f(), pmod.Reference('g')), 5)
|
|
|
|
|
|
def test_apply_tracked(self):
|
|
|
"""test tracking for apply"""
|
|
|
# self.add_engines(1)
|
|
|
t = self.client.ids[-1]
|
|
|
v = self.client[t]
|
|
|
v.block=False
|
|
|
def echo(n=1024*1024, **kwargs):
|
|
|
with v.temp_flags(**kwargs):
|
|
|
return v.apply(lambda x: x, 'x'*n)
|
|
|
ar = echo(1, track=False)
|
|
|
self.assertTrue(isinstance(ar._tracker, zmq.MessageTracker))
|
|
|
self.assertTrue(ar.sent)
|
|
|
ar = echo(track=True)
|
|
|
self.assertTrue(isinstance(ar._tracker, zmq.MessageTracker))
|
|
|
self.assertEquals(ar.sent, ar._tracker.done)
|
|
|
ar._tracker.wait()
|
|
|
self.assertTrue(ar.sent)
|
|
|
|
|
|
def test_push_tracked(self):
|
|
|
t = self.client.ids[-1]
|
|
|
ns = dict(x='x'*1024*1024)
|
|
|
v = self.client[t]
|
|
|
ar = v.push(ns, block=False, track=False)
|
|
|
self.assertTrue(isinstance(ar._tracker, zmq.MessageTracker))
|
|
|
self.assertTrue(ar.sent)
|
|
|
|
|
|
ar = v.push(ns, block=False, track=True)
|
|
|
self.assertTrue(isinstance(ar._tracker, zmq.MessageTracker))
|
|
|
self.assertEquals(ar.sent, ar._tracker.done)
|
|
|
ar._tracker.wait()
|
|
|
self.assertTrue(ar.sent)
|
|
|
ar.get()
|
|
|
|
|
|
def test_scatter_tracked(self):
|
|
|
t = self.client.ids
|
|
|
x='x'*1024*1024
|
|
|
ar = self.client[t].scatter('x', x, block=False, track=False)
|
|
|
self.assertTrue(isinstance(ar._tracker, zmq.MessageTracker))
|
|
|
self.assertTrue(ar.sent)
|
|
|
|
|
|
ar = self.client[t].scatter('x', x, block=False, track=True)
|
|
|
self.assertTrue(isinstance(ar._tracker, zmq.MessageTracker))
|
|
|
self.assertEquals(ar.sent, ar._tracker.done)
|
|
|
ar._tracker.wait()
|
|
|
self.assertTrue(ar.sent)
|
|
|
ar.get()
|
|
|
|
|
|
def test_remote_reference(self):
|
|
|
v = self.client[-1]
|
|
|
v['a'] = 123
|
|
|
ra = pmod.Reference('a')
|
|
|
b = v.apply_sync(lambda x: x, ra)
|
|
|
self.assertEquals(b, 123)
|
|
|
|
|
|
|
|
|
def test_scatter_gather(self):
|
|
|
view = self.client[:]
|
|
|
seq1 = range(16)
|
|
|
view.scatter('a', seq1)
|
|
|
seq2 = view.gather('a', block=True)
|
|
|
self.assertEquals(seq2, seq1)
|
|
|
self.assertRaisesRemote(NameError, view.gather, 'asdf', block=True)
|
|
|
|
|
|
@skip_without('numpy')
|
|
|
def test_scatter_gather_numpy(self):
|
|
|
import numpy
|
|
|
from numpy.testing.utils import assert_array_equal, assert_array_almost_equal
|
|
|
view = self.client[:]
|
|
|
a = numpy.arange(64)
|
|
|
view.scatter('a', a)
|
|
|
b = view.gather('a', block=True)
|
|
|
assert_array_equal(b, a)
|
|
|
|
|
|
def test_map(self):
|
|
|
view = self.client[:]
|
|
|
def f(x):
|
|
|
return x**2
|
|
|
data = range(16)
|
|
|
r = view.map_sync(f, data)
|
|
|
self.assertEquals(r, map(f, data))
|
|
|
|
|
|
def test_scatterGatherNonblocking(self):
|
|
|
data = range(16)
|
|
|
view = self.client[:]
|
|
|
view.scatter('a', data, block=False)
|
|
|
ar = view.gather('a', block=False)
|
|
|
self.assertEquals(ar.get(), data)
|
|
|
|
|
|
@skip_without('numpy')
|
|
|
def test_scatter_gather_numpy_nonblocking(self):
|
|
|
import numpy
|
|
|
from numpy.testing.utils import assert_array_equal, assert_array_almost_equal
|
|
|
a = numpy.arange(64)
|
|
|
view = self.client[:]
|
|
|
ar = view.scatter('a', a, block=False)
|
|
|
self.assertTrue(isinstance(ar, AsyncResult))
|
|
|
amr = view.gather('a', block=False)
|
|
|
self.assertTrue(isinstance(amr, AsyncMapResult))
|
|
|
assert_array_equal(amr.get(), a)
|
|
|
|
|
|
def test_execute(self):
|
|
|
view = self.client[:]
|
|
|
# self.client.debug=True
|
|
|
execute = view.execute
|
|
|
ar = execute('c=30', block=False)
|
|
|
self.assertTrue(isinstance(ar, AsyncResult))
|
|
|
ar = execute('d=[0,1,2]', block=False)
|
|
|
self.client.wait(ar, 1)
|
|
|
self.assertEquals(len(ar.get()), len(self.client))
|
|
|
for c in view['c']:
|
|
|
self.assertEquals(c, 30)
|
|
|
|
|
|
def test_abort(self):
|
|
|
view = self.client[-1]
|
|
|
ar = view.execute('import time; time.sleep(0.25)', block=False)
|
|
|
ar2 = view.apply_async(lambda : 2)
|
|
|
ar3 = view.apply_async(lambda : 3)
|
|
|
view.abort(ar2)
|
|
|
view.abort(ar3.msg_ids)
|
|
|
self.assertRaises(error.TaskAborted, ar2.get)
|
|
|
self.assertRaises(error.TaskAborted, ar3.get)
|
|
|
|
|
|
def test_temp_flags(self):
|
|
|
view = self.client[-1]
|
|
|
view.block=True
|
|
|
with view.temp_flags(block=False):
|
|
|
self.assertFalse(view.block)
|
|
|
self.assertTrue(view.block)
|
|
|
|
|
|
def test_importer(self):
|
|
|
view = self.client[-1]
|
|
|
view.clear(block=True)
|
|
|
with view.importer:
|
|
|
import re
|
|
|
|
|
|
@interactive
|
|
|
def findall(pat, s):
|
|
|
# this globals() step isn't necessary in real code
|
|
|
# only to prevent a closure in the test
|
|
|
return globals()['re'].findall(pat, s)
|
|
|
|
|
|
self.assertEquals(view.apply_sync(findall, '\w+', 'hello world'), 'hello world'.split())
|
|
|
|
|
|
|
