Exemplo n.º 1
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  def testDestroySegment(self):
    """ Creates a segment, destroys it, and makes sure it got destroyed along
        with all of its synapses.
    """
    connections = Connections(1024)

    connections.createSegment(10)
    segment2 = connections.createSegment(20)
    connections.createSegment(30)
    connections.createSegment(40)

    connections.createSynapse(segment2, 80, 0.85)
    connections.createSynapse(segment2, 81, 0.85)
    connections.createSynapse(segment2, 82, 0.15)

    self.assertEqual(4, connections.numSegments())
    self.assertEqual(3, connections.numSynapses())

    connections.destroySegment(segment2)

    self.assertEqual(3, connections.numSegments())
    self.assertEqual(0, connections.numSynapses())

    (numActiveConnected,
     numActivePotential) = connections.computeActivity([80, 81, 82], 0.5)

    self.assertEqual(0, numActiveConnected[segment2.flatIdx])
    self.assertEqual(0, numActivePotential[segment2.flatIdx])
Exemplo n.º 2
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  def testPathsNotInvalidatedByOtherDestroys(self):
    """ Creates segments and synapses, then destroys segments and synapses on
        either side of them and verifies that existing Segment and Synapse
        instances still point to the same segment / synapse as before.
    """
    connections = Connections(1024)
    segment1 = connections.createSegment(11)
    connections.createSegment(12)
    segment3 = connections.createSegment(13)
    connections.createSegment(14)
    segment5 = connections.createSegment(15)

    synapse1 = connections.createSynapse(segment3, 201, .85)
    synapse2 = connections.createSynapse(segment3, 202, .85)
    synapse3 = connections.createSynapse(segment3, 203, .85)
    synapse4 = connections.createSynapse(segment3, 204, .85)
    synapse5 = connections.createSynapse(segment3, 205, .85)

    self.assertEqual(203, synapse3.presynapticCell)
    connections.destroySynapse(synapse1)
    self.assertEqual(203, synapse3.presynapticCell)
    connections.destroySynapse(synapse5)
    self.assertEqual(203, synapse3.presynapticCell)

    connections.destroySegment(segment1)
    self.assertEqual(set([synapse2, synapse3, synapse4]),
                     connections.synapsesForSegment(segment3))
    connections.destroySegment(segment5)
    self.assertEqual(set([synapse2, synapse3, synapse4]),
                     connections.synapsesForSegment(segment3))
    self.assertEqual(203, synapse3.presynapticCell)
Exemplo n.º 3
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  def testWriteRead(self):
    c1 = Connections(1024)

    # Add data before serializing
    s1 = c1.createSegment(0)
    c1.createSynapse(s1, 254, 0.1173)

    s2 = c1.createSegment(100)
    c1.createSynapse(s2, 20, 0.3)

    c1.createSynapse(s1, 40, 0.3)

    s3 = c1.createSegment(0)
    c1.createSynapse(s3, 0, 0.5)
    c1.createSynapse(s3, 1, 0.5)

    s4 = c1.createSegment(10)
    c1.createSynapse(s4, 0, 0.5)
    c1.createSynapse(s4, 1, 0.5)
    c1.destroySegment(s4)

    proto1 = ConnectionsProto_capnp.ConnectionsProto.new_message()
    c1.write(proto1)

    # Write the proto to a temp file and read it back into a new proto
    with tempfile.TemporaryFile() as f:
      proto1.write(f)
      f.seek(0)
      proto2 = ConnectionsProto_capnp.ConnectionsProto.read(f)

    # Load the deserialized proto
    c2 = Connections.read(proto2)

    # Check that the two connections objects are functionally equal
    self.assertEqual(c1, c2)
Exemplo n.º 4
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    def testDestroySegment(self):
        """ Creates a segment, destroys it, and makes sure it got destroyed along
        with all of its synapses.
    """
        connections = Connections(1024)

        connections.createSegment(10)
        segment2 = connections.createSegment(20)
        connections.createSegment(30)
        connections.createSegment(40)

        connections.createSynapse(segment2, 80, 0.85)
        connections.createSynapse(segment2, 81, 0.85)
        connections.createSynapse(segment2, 82, 0.15)

        self.assertEqual(4, connections.numSegments())
        self.assertEqual(3, connections.numSynapses())

        connections.destroySegment(segment2)

        self.assertEqual(3, connections.numSegments())
        self.assertEqual(0, connections.numSynapses())

        (numActiveConnected,
         numActivePotential) = connections.computeActivity([80, 81, 82], 0.5)

        self.assertEqual(0, numActiveConnected[segment2.flatIdx])
        self.assertEqual(0, numActivePotential[segment2.flatIdx])
Exemplo n.º 5
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    def testPathsNotInvalidatedByOtherDestroys(self):
        """ Creates segments and synapses, then destroys segments and synapses on
        either side of them and verifies that existing Segment and Synapse
        instances still point to the same segment / synapse as before.
    """
        connections = Connections(1024)
        segment1 = connections.createSegment(11)
        connections.createSegment(12)
        segment3 = connections.createSegment(13)
        connections.createSegment(14)
        segment5 = connections.createSegment(15)

        synapse1 = connections.createSynapse(segment3, 201, .85)
        synapse2 = connections.createSynapse(segment3, 202, .85)
        synapse3 = connections.createSynapse(segment3, 203, .85)
        synapse4 = connections.createSynapse(segment3, 204, .85)
        synapse5 = connections.createSynapse(segment3, 205, .85)

        self.assertEqual(203, synapse3.presynapticCell)
        connections.destroySynapse(synapse1)
        self.assertEqual(203, synapse3.presynapticCell)
        connections.destroySynapse(synapse5)
        self.assertEqual(203, synapse3.presynapticCell)

        connections.destroySegment(segment1)
        self.assertEqual(set([synapse2, synapse3, synapse4]),
                         connections.synapsesForSegment(segment3))
        connections.destroySegment(segment5)
        self.assertEqual(set([synapse2, synapse3, synapse4]),
                         connections.synapsesForSegment(segment3))
        self.assertEqual(203, synapse3.presynapticCell)
Exemplo n.º 6
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    def testWriteRead(self):
        c1 = Connections(1024)

        # Add data before serializing
        s1 = c1.createSegment(0)
        c1.createSynapse(s1, 254, 0.1173)

        s2 = c1.createSegment(100)
        c1.createSynapse(s2, 20, 0.3)

        c1.createSynapse(s1, 40, 0.3)

        s3 = c1.createSegment(0)
        c1.createSynapse(s3, 0, 0.5)
        c1.createSynapse(s3, 1, 0.5)

        s4 = c1.createSegment(10)
        c1.createSynapse(s4, 0, 0.5)
        c1.createSynapse(s4, 1, 0.5)
        c1.destroySegment(s4)

        proto1 = ConnectionsProto_capnp.ConnectionsProto.new_message()
        c1.write(proto1)

        # Write the proto to a temp file and read it back into a new proto
        with tempfile.TemporaryFile() as f:
            proto1.write(f)
            f.seek(0)
            proto2 = ConnectionsProto_capnp.ConnectionsProto.read(f)

        # Load the deserialized proto
        c2 = Connections.read(proto2)

        # Check that the two connections objects are functionally equal
        self.assertEqual(c1, c2)
Exemplo n.º 7
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  def testDestroySegmentsThenReachLimit(self):
    """ Destroy some segments then verify that the maxSegmentsPerCell is still
        correctly applied.
    """
    connections = Connections(1024, 2, 2)

    segment1 = connections.createSegment(11)
    segment2 = connections.createSegment(11)

    self.assertEqual(2, connections.numSegments())
    connections.destroySegment(segment1)
    connections.destroySegment(segment2)
    self.assertEqual(0, connections.numSegments())

    connections.createSegment(11)
    self.assertEqual(1, connections.numSegments())
    connections.createSegment(11)
    self.assertEqual(2, connections.numSegments())
    segment3 = connections.createSegment(11)
    self.assertEqual(2, connections.numSegments(11))
    self.assertEqual(2, connections.numSegments())
Exemplo n.º 8
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    def testDestroySegmentsThenReachLimit(self):
        """ Destroy some segments then verify that the maxSegmentsPerCell is still
        correctly applied.
    """
        connections = Connections(1024, 2, 2)

        segment1 = connections.createSegment(11)
        segment2 = connections.createSegment(11)

        self.assertEqual(2, connections.numSegments())
        connections.destroySegment(segment1)
        connections.destroySegment(segment2)
        self.assertEqual(0, connections.numSegments())

        connections.createSegment(11)
        self.assertEqual(1, connections.numSegments())
        connections.createSegment(11)
        self.assertEqual(2, connections.numSegments())
        segment3 = connections.createSegment(11)
        self.assertEqual(2, connections.numSegments(11))
        self.assertEqual(2, connections.numSegments())
Exemplo n.º 9
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  def testReuseSegmentWithDestroyedSynapses(self):
    """ Destroy a segment that has a destroyed synapse and a non-destroyed
        synapse. Create a new segment in the same place. Make sure its synapse
        count is correct.
    """
    connections = Connections(1024)

    segment = connections.createSegment(11)

    synapse1 = connections.createSynapse(segment, 201, .85)
    connections.createSynapse(segment, 202, .85)

    connections.destroySynapse(synapse1)

    self.assertEqual(1, connections.numSynapses(segment))

    connections.destroySegment(segment)

    reincarnated = connections.createSegment(11)

    self.assertEqual(0, connections.numSynapses(reincarnated))
    self.assertEqual(0, len(connections.synapsesForSegment(reincarnated)))
Exemplo n.º 10
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    def testReuseSegmentWithDestroyedSynapses(self):
        """ Destroy a segment that has a destroyed synapse and a non-destroyed
        synapse. Create a new segment in the same place. Make sure its synapse
        count is correct.
    """
        connections = Connections(1024)

        segment = connections.createSegment(11)

        synapse1 = connections.createSynapse(segment, 201, .85)
        connections.createSynapse(segment, 202, .85)

        connections.destroySynapse(synapse1)

        self.assertEqual(1, connections.numSynapses(segment))

        connections.destroySegment(segment)

        reincarnated = connections.createSegment(11)

        self.assertEqual(0, connections.numSynapses(reincarnated))
        self.assertEqual(0, len(connections.synapsesForSegment(reincarnated)))
Exemplo n.º 11
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  def testDestroySegmentWithDestroyedSynapses(self):
    """ Destroy a segment that has a destroyed synapse and a non-destroyed
        synapse. Make sure nothing gets double-destroyed.
    """
    connections = Connections(1024)

    segment1 = connections.createSegment(11)
    segment2 = connections.createSegment(12)

    connections.createSynapse(segment1, 101, .85)
    synapse2a = connections.createSynapse(segment2, 201, .85)
    connections.createSynapse(segment2, 202, .85)

    self.assertEqual(3, connections.numSynapses())

    connections.destroySynapse(synapse2a)

    self.assertEqual(2, connections.numSegments())
    self.assertEqual(2, connections.numSynapses())

    connections.destroySegment(segment2)

    self.assertEqual(1, connections.numSegments())
    self.assertEqual(1, connections.numSynapses())
Exemplo n.º 12
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    def testDestroySegmentWithDestroyedSynapses(self):
        """ Destroy a segment that has a destroyed synapse and a non-destroyed
        synapse. Make sure nothing gets double-destroyed.
    """
        connections = Connections(1024)

        segment1 = connections.createSegment(11)
        segment2 = connections.createSegment(12)

        connections.createSynapse(segment1, 101, .85)
        synapse2a = connections.createSynapse(segment2, 201, .85)
        connections.createSynapse(segment2, 202, .85)

        self.assertEqual(3, connections.numSynapses())

        connections.destroySynapse(synapse2a)

        self.assertEqual(2, connections.numSegments())
        self.assertEqual(2, connections.numSynapses())

        connections.destroySegment(segment2)

        self.assertEqual(1, connections.numSegments())
        self.assertEqual(1, connections.numSynapses())