def setup_2_layers_4_units_ff_net():
configure_scheduling()
pynnn.setup()
Tns.p1 = pynnn.Population(4, pynnn.IF_curr_alpha,
structure=pynnn.space.Grid2D())
Tns.p2 = pynnn.Population(4, pynnn.IF_curr_alpha,
structure=pynnn.space.Grid2D())
Tns.prj1_2 = pynnn.Projection(
Tns.p1, Tns.p2, pynnn.AllToAllConnector(allow_self_connections=False),
target='excitatory')
Tns.prj1_2.set("weight", 1)
Tns.max_weight = 34
Tns.rore1_update_p = 10
Tns.rore1_win_width = 200
Tns.rore2_update_p = 10
Tns.rore2_win_width = 200
Tns.rore1 = RectilinearOutputRateEncoder(Tns.p1, 2, 2,
Tns.rore1_update_p,
Tns.rore1_win_width)
Tns.rore2 = RectilinearOutputRateEncoder(Tns.p2, 2, 2,
Tns.rore2_update_p,
Tns.rore2_win_width)
common.pynn_utils.POP_ADAPT_DICT[(Tns.p1,
common.pynn_utils.RectilinearOutputRateEncoder)] = Tns.rore1
common.pynn_utils.POP_ADAPT_DICT[(Tns.p2,
common.pynn_utils.RectilinearOutputRateEncoder)] = Tns.rore2
enable_recording(Tns.p1, Tns.p2)
schedule_output_rate_calculation(Tns.p1)
schedule_output_rate_calculation(Tns.p2)
def setup_2_layers_4_units_ff_net():
configure_scheduling()
pynnn.setup()
Tns.p1 = pynnn.Population(4,
pynnn.IF_curr_alpha,
structure=pynnn.space.Grid2D())
Tns.p2 = pynnn.Population(4,
pynnn.IF_curr_alpha,
structure=pynnn.space.Grid2D())
Tns.prj1_2 = pynnn.Projection(
Tns.p1,
Tns.p2,
pynnn.AllToAllConnector(allow_self_connections=False),
target='excitatory')
Tns.prj1_2.set("weight", 1)
Tns.max_weight = 34
Tns.rore1_update_p = 10
Tns.rore1_win_width = 200
Tns.rore2_update_p = 10
Tns.rore2_win_width = 200
Tns.rore1 = RectilinearOutputRateEncoder(Tns.p1, 2, 2, Tns.rore1_update_p,
Tns.rore1_win_width)
Tns.rore2 = RectilinearOutputRateEncoder(Tns.p2, 2, 2, Tns.rore2_update_p,
Tns.rore2_win_width)
common.pynn_utils.POP_ADAPT_DICT[(
Tns.p1, common.pynn_utils.RectilinearOutputRateEncoder)] = Tns.rore1
common.pynn_utils.POP_ADAPT_DICT[(
Tns.p2, common.pynn_utils.RectilinearOutputRateEncoder)] = Tns.rore2
enable_recording(Tns.p1, Tns.p2)
schedule_output_rate_calculation(Tns.p1)
schedule_output_rate_calculation(Tns.p2)
def run_sim(ncell):
print "Cells: ", ncell
setup0 = time.time()
sim.setup(timestep=0.1)
hh_cell_type = sim.HH_cond_exp()
hh = sim.Population(ncell, hh_cell_type)
pulse = sim.DCSource(amplitude=0.5, start=20.0, stop=80.0)
pulse.inject_into(hh)
hh.record('v')
setup1 = time.time()
t0 = time.time()
sim.run(100.0)
v = hh.get_data()
sim.end()
t1 = time.time()
setup_total = setup1 - setup0
run_total = t1 - t0
print "Setup: ", setup_total
print "Run: ", run_total
print "Total sim time: ", setup_total + run_total
return run_total
def configure_scheduling():
global SIMULATION_END_T
sim.initialize()
pynnn.setup()
SIMULATION_END_T = 0
RATE_ENC_RESPAWN_DICT.clear()
POP_ADAPT_DICT.clear()
def configure_scheduling():
global SIMULATION_END_T
sim.initialize()
pynnn.setup()
SIMULATION_END_T = 0
RATE_ENC_RESPAWN_DICT.clear()
POP_ADAPT_DICT.clear()
def setup_pynn_populations_with_full_connectivity():
pynnn.setup()
Tns.p1 = pynnn.Population(4, pynnn.IF_curr_alpha, structure=pynnn.space.Grid2D())
Tns.p2 = pynnn.Population(4, pynnn.IF_curr_alpha, structure=pynnn.space.Grid2D())
Tns.prj1_2 = pynnn.Projection(
Tns.p1, Tns.p2, pynnn.AllToAllConnector(allow_self_connections=False), target="excitatory"
)
def make_network(self, param_dict=default_params):
"""
Construct the network according to the parameters specified.
"""
pynn.setup()
self.exc = pynn.Population(param_dict['num_e'],
pynn.SpikeSourcePoisson,
cellparams={'rate':param_dict['re']})
self.inh = pynn.Population(param_dict['num_i'],
pynn.SpikeSourcePoisson,
cellparams={'rate':param_dict['ri']})
self.target = pynn.Population(param_dict['num_t'],
pynn.IF_cond_exp)
self.target.record(to_file=False)
connector_et = pynn.FixedProbabilityConnector(
p_connect=param_dict["p_conn_et"],
weights=param_dict["we"])
connector_ei = pynn.FixedProbabilityConnector(
p_connect=param_dict["p_conn_it"],
weights=param_dict["wi"])
self.prj_et = pynn.Projection(self.exc, self.target,
method=connector_et)
self.prj_it = pynn.Projection(self.inh, self.target,
method=connector_ei, target='inhibitory')
def setup_pynn_populations():
pynnn.setup()
Tns.p1 = pynnn.Population(64, pynnn.IF_curr_alpha, structure=pynnn.space.Grid2D())
Tns.p2 = pynnn.Population(64, pynnn.IF_curr_alpha, structure=pynnn.space.Grid2D())
Tns.prj1_2 = pynnn.Projection(
Tns.p1, Tns.p2, pynnn.AllToAllConnector(allow_self_connections=False), target="excitatory"
)
# Weights in nA as IF_curr_alpha uses current-based synapses
Tns.prj1_2.set("weight", 1)
Tns.max_weight = 33
def setup_pynn_populations_with_1_to_1_connectivity():
pynnn.setup()
Tns.p1 = pynnn.Population(64,
pynnn.IF_curr_alpha,
structure=pynnn.space.Grid2D())
Tns.p2 = pynnn.Population(64,
pynnn.IF_curr_alpha,
structure=pynnn.space.Grid2D())
Tns.prj1_2 = pynnn.Projection(Tns.p1,
Tns.p2,
pynnn.OneToOneConnector(),
target='excitatory')
def setUp(self):
sim.setup()
sim.Population.nPop = 0
sim.Projection.nProj = 0
self.target33 = sim.Population((3, 3), sim.IF_curr_alpha)
self.target6 = sim.Population((6, ), sim.IF_curr_alpha)
self.target1 = sim.Population((1, ), sim.IF_cond_exp)
self.source5 = sim.Population((5, ), sim.SpikeSourcePoisson)
self.source22 = sim.Population((2, 2), sim.SpikeSourcePoisson)
self.source33 = sim.Population((3, 3), sim.SpikeSourcePoisson)
self.expoisson33 = sim.Population((3, 3), sim.SpikeSourcePoisson,
{'rate': 100})
def setup_pynn_populations_with_full_connectivity():
pynnn.setup()
Tns.p1 = pynnn.Population(4,
pynnn.IF_curr_alpha,
structure=pynnn.space.Grid2D())
Tns.p2 = pynnn.Population(4,
pynnn.IF_curr_alpha,
structure=pynnn.space.Grid2D())
Tns.prj1_2 = pynnn.Projection(
Tns.p1,
Tns.p2,
pynnn.AllToAllConnector(allow_self_connections=False),
target='excitatory')
def setup_pynn_populations():
pynnn.setup()
Tns.p1 = pynnn.Population(64,
pynnn.IF_curr_alpha,
structure=pynnn.space.Grid2D())
Tns.p2 = pynnn.Population(64,
pynnn.IF_curr_alpha,
structure=pynnn.space.Grid2D())
Tns.prj1_2 = pynnn.Projection(
Tns.p1,
Tns.p2,
pynnn.AllToAllConnector(allow_self_connections=False),
target='excitatory')
# Weights in nA as IF_curr_alpha uses current-based synapses
Tns.prj1_2.set("weight", 1)
Tns.max_weight = 33
def generate_data(label):
spikesTrain = []
organisedData = {}
for i in range(input_class):
for j in range(input_len):
neuid = (i, j)
organisedData[neuid] = []
for i in range(input_len):
neuid = (label, i)
organisedData[neuid].append(i * v_co)
# if neuid not in organisedData:
# organisedData[neuid]=[i*v_co]
# else:
# organisedData[neuid].append(i*v_co)
for i in range(input_class):
for j in range(input_len):
neuid = (i, j)
organisedData[neuid].sort()
spikesTrain.append(organisedData[neuid])
runTime = int(max(max(spikesTrain)))
sim.setup(timestep=1)
noise = sim.Population(input_size, sim.SpikeSourcePoisson(), label='noise')
noise.record(['spikes']) #noise
sim.run(runTime)
neonoise = noise.get_data(["spikes"])
spikesnoise = neonoise.segments[0].spiketrains #noise
sim.end()
for i in range(input_size):
for noisespike in spikesnoise[i]:
spikesTrain[i].append(noisespike)
spikesTrain[i].sort()
return spikesTrain
def setup_pynn_populations_with_1_to_1_connectivity():
pynnn.setup()
Tns.p1 = pynnn.Population(64, pynnn.IF_curr_alpha, structure=pynnn.space.Grid2D())
Tns.p2 = pynnn.Population(64, pynnn.IF_curr_alpha, structure=pynnn.space.Grid2D())
Tns.prj1_2 = pynnn.Projection(Tns.p1, Tns.p2, pynnn.OneToOneConnector(), target="excitatory")
def train(label, untrained_weights=None):
organisedStim = {}
labelSpikes = []
spikeTimes = generate_data(label)
for i in range(output_size):
labelSpikes.append([])
labelSpikes[label] = [int(max(max(spikeTimes))) + 1]
if untrained_weights == None:
untrained_weights = RandomDistribution('uniform',
low=wMin,
high=wMaxInit).next(input_size *
output_size)
#untrained_weights = RandomDistribution('normal_clipped', mu=0.1, sigma=0.05, low=wMin, high=wMaxInit).next(input_size*output_size)
untrained_weights = np.around(untrained_weights, 3)
#saveWeights(untrained_weights, 'untrained_weightssupmodel1traj')
print("init!")
print "length untrained_weights :", len(untrained_weights)
if len(untrained_weights) > input_size:
training_weights = [[0 for j in range(output_size)]
for i in range(input_size)
] #np array? size 1024x25
k = 0
#for i in untrained_weights:
# training_weights[i[0]][i[1]]=i[2]
for i in range(input_size):
for j in range(output_size):
training_weights[i][j] = untrained_weights[k]
k += 1
else:
training_weights = untrained_weights
connections = []
for n_pre in range(input_size): # len(untrained_weights) = input_size
for n_post in range(
output_size
): # len(untrained_weight[0]) = output_size; 0 or any n_pre
connections.append((n_pre, n_post, training_weights[n_pre][n_post],
__delay__)) #index
runTime = int(max(max(spikeTimes))) + 100
#####################
sim.setup(timestep=1)
#def populations
layer1 = sim.Population(input_size,
sim.SpikeSourceArray, {'spike_times': spikeTimes},
label='inputspikes')
layer2 = sim.Population(output_size,
sim.IF_curr_exp,
cellparams=cell_params_lif,
label='outputspikes')
supsignal = sim.Population(output_size,
sim.SpikeSourceArray,
{'spike_times': labelSpikes},
label='supersignal')
#def learning rule
stdp = sim.STDPMechanism(
#weight=untrained_weights,
#weight=0.02, # this is the initial value of the weight
#delay="0.2 + 0.01*d",
timing_dependence=sim.SpikePairRule(tau_plus=tauPlus,
tau_minus=tauMinus,
A_plus=aPlus,
A_minus=aMinus),
#weight_dependence=sim.MultiplicativeWeightDependence(w_min=wMin, w_max=wMax),
weight_dependence=sim.AdditiveWeightDependence(w_min=wMin, w_max=wMax),
dendritic_delay_fraction=0)
#def projections
stdp_proj = sim.Projection(layer1,
layer2,
sim.FromListConnector(connections),
synapse_type=stdp)
inhibitory_connections = sim.Projection(
layer2,
layer2,
sim.AllToAllConnector(allow_self_connections=False),
synapse_type=sim.StaticSynapse(weight=inhibWeight, delay=__delay__),
receptor_type='inhibitory')
stim_proj = sim.Projection(supsignal,
layer2,
sim.OneToOneConnector(),
synapse_type=sim.StaticSynapse(
weight=stimWeight, delay=__delay__))
layer1.record(['spikes'])
layer2.record(['v', 'spikes'])
supsignal.record(['spikes'])
sim.run(runTime)
print("Weights:{}".format(stdp_proj.get('weight', 'list')))
weight_list = [
stdp_proj.get('weight', 'list'),
stdp_proj.get('weight', format='list', with_address=False)
]
neo = layer2.get_data(["spikes", "v"])
spikes = neo.segments[0].spiketrains
v = neo.segments[0].filter(name='v')[0]
neostim = supsignal.get_data(["spikes"])
print(label)
spikestim = neostim.segments[0].spiketrains
neoinput = layer1.get_data(["spikes"])
spikesinput = neoinput.segments[0].spiketrains
plt.close('all')
pplt.Figure(pplt.Panel(v,
ylabel="Membrane potential (mV)",
xticks=True,
yticks=True,
xlim=(0, runTime)),
pplt.Panel(spikesinput,
xticks=True,
yticks=True,
markersize=2,
xlim=(0, runTime)),
pplt.Panel(spikestim,
xticks=True,
yticks=True,
markersize=2,
xlim=(0, runTime)),
pplt.Panel(spikes,
xticks=True,
xlabel="Time (ms)",
yticks=True,
markersize=2,
xlim=(0, runTime)),
title="Training" + str(label),
annotations="Training" +
str(label)).save('plot/' + str(trylabel) + str(label) +
'_training.png')
#plt.hist(weight_list[1], bins=100)
#plt.show()
plt.close('all')
print(wMax)
'''
plt.hist([weight_list[1][0:input_size], weight_list[1][input_size:input_size*2], weight_list[1][input_size*2:]], bins=20, label=['neuron 0', 'neuron 1', 'neuron 2'], range=(0, wMax))
plt.title('weight distribution')
plt.xlabel('Weight value')
plt.ylabel('Weight count')
'''
#plt.show()
#plt.show()
sim.end()
for i in weight_list[0]:
#training_weights[int(i[0])][int(i[1])]=float(i[2])
weight_list[1][int(i[0]) * output_size + int(i[1])] = i[2]
return weight_list[1]
def test(spikeTimes, trained_weights, label):
#spikeTimes = extractSpikes(sample)
runTime = int(max(max(spikeTimes))) + 100
##########################################
sim.setup(timestep=1)
pre_pop = sim.Population(input_size,
sim.SpikeSourceArray, {'spike_times': spikeTimes},
label="pre_pop")
post_pop = sim.Population(output_size,
sim.IF_curr_exp,
cell_params_lif,
label="post_pop")
'''
if len(untrained_weights)>input_size:
training_weights = [[0 for j in range(output_size)] for i in range(input_size)] #np array? size 1024x25
k=0
for i in untrained_weights:
training_weights[i[0]][i[1]]=i[2]
'''
if len(trained_weights) > input_size:
weigths = [[0 for j in range(output_size)]
for i in range(input_size)] #np array? size 1024x25
k = 0
for i in range(input_size):
for j in range(output_size):
weigths[i][j] = trained_weights[k]
k += 1
else:
weigths = trained_weights
connections = []
#k = 0
for n_pre in range(input_size): # len(untrained_weights) = input_size
for n_post in range(
output_size
): # len(untrained_weight[0]) = output_size; 0 or any n_pre
#connections.append((n_pre, n_post, weigths[n_pre][n_post]*(wMax), __delay__))
connections.append((n_pre, n_post, weigths[n_pre][n_post] *
(wMax) / max(trained_weights), __delay__)) #
#k += 1
prepost_proj = sim.Projection(
pre_pop,
post_pop,
sim.FromListConnector(connections),
synapse_type=sim.StaticSynapse(),
receptor_type='excitatory') # no more learning !!
#inhib_proj = sim.Projection(post_pop, post_pop, sim.AllToAllConnector(), synapse_type=sim.StaticSynapse(weight=inhibWeight, delay=__delay__), receptor_type='inhibitory')
# no more lateral inhib
post_pop.record(['v', 'spikes'])
sim.run(runTime)
neo = post_pop.get_data(['v', 'spikes'])
spikes = neo.segments[0].spiketrains
v = neo.segments[0].filter(name='v')[0]
f1 = pplt.Figure(
# plot voltage
pplt.Panel(v,
ylabel="Membrane potential (mV)",
xticks=True,
yticks=True,
xlim=(0, runTime + 100)),
# raster plot
pplt.Panel(spikes,
xlabel="Time (ms)",
xticks=True,
yticks=True,
markersize=2,
xlim=(0, runTime + 100)),
title='Test with label ' + str(label),
annotations='Test with label ' + str(label))
f1.save('plot/' + str(trylabel) + str(label) + '_test.png')
f1.fig.texts = []
print("Weights:{}".format(prepost_proj.get('weight', 'list')))
weight_list = [
prepost_proj.get('weight', 'list'),
prepost_proj.get('weight', format='list', with_address=False)
]
#predict_label=
sim.end()
return spikes
import pyNN.brian as sim
import matplotlib.pyplot as plt
from pyNN.utility.plotting import Figure, Panel
sim.setup(timestep=0.1, min_delay=2.0)
ifcell = sim.create(sim.IF_cond_exp, {
'i_offset': 0.11,
'tau_refrac': 3.0,
'v_thresh': -51.0
},
n=10)
'''
pulse = sim.DCSource(amplitude=0.5, start=20.0, stop=80.0)
pulse.inject_into(ifcell[3:7])
ifcell.record('v')
sim.run(100.0)
data = ifcell.get_data()
sim.end()
'''
'''
vm = data.filter(name="v")[0]
Figure(
Panel(vm, ylabel="Membrane potential (mV)")
).show
'''
'''
sine = sim.ACSource(start=50.0, stop=450.0, amplitude=1.0, offset=1.0,
frequency=10.0, phase=180.0)
import pyNN.brian as sim # can of course replace `neuron` with `nest`, `brian`, etc.
import matplotlib.pyplot as plt
import numpy as np
sim.setup(timestep=0.01)
p_in = sim.Population(10, sim.SpikeSourcePoisson(rate=10.0), label="input")
p_out = sim.Population(10, sim.EIF_cond_exp_isfa_ista(), label="AdExp neurons")
syn = sim.StaticSynapse(weight=0.05)
random = sim.FixedProbabilityConnector(p_connect=0.5)
connections = sim.Projection(p_in,
p_out,
random,
syn,
receptor_type='excitatory')
p_in.record('spikes')
p_out.record('spikes') # record spikes from all neurons
p_out[0:2].record(['v', 'w', 'gsyn_exc'
]) # record other variables from first two neurons
for i in range(2):
sim.run(500.0)
spikes_in = p_in.get_data()
data_out = p_out.get_data()
sim.reset()
connections.set(weight=0.05)
sim.end()
print 'finish simulation'
Exc_in = 32 # number of excitatory inputs
Inh_in = 32 # number of inhibitatory inputs
# No_inp = {'exc': 32, 'inh': 32}
run_time = 500 # define the simulation time
# ==========generate OR read in the input spikes data=====================
noSpikes = 20 # number of spikes per chanel per simulation run
stimSpikes = RandomDistribution(
'uniform', low=0, high=run_time, rng=NumpyRNG(seed=72386)
).next(
[Exc_in + Inh_in, noSpikes]
) # generate a time uniform distributed signal with Exc_in + Inh_in chanels and noSpikes for each chanel
# todo: 64 chanel represents different data
sim.setup() # start buiding up the network topology
# ==========create the input signal neuron population==================
# form the Exc_in chanels excitatory inputs as a assembly Inhinp
for i in range(Exc_in):
if i == 0:
Excinp = sim.Population(
1, sim.SpikeSourceArray(spike_times=stimSpikes[i, :]))
else:
spike_source = sim.Population(
1, sim.SpikeSourceArray(spike_times=stimSpikes[i, :]))
Excinp = Excinp + spike_source
# form the Inh_in chanels excitatory inputs as a assembly Inhinp
for i in range(Inh_in):
if i == 0:
def setUp(self):
sim.setup()
self.syn = sim.StaticSynapse(weight=0.123, delay=0.5)
# You should have received a copy of the GNU General Public License
# along with PyCogMo. If not, see <http://www.gnu.org/licenses/>.
""" Utilities and algorithms to integrate PyNN and SimPy
"""
import pyNN.brian as pynnn
import SimPy.Simulation as sim
from common.pynn_utils import get_input_layer, get_rate_encoder, \
InputSample, RectilinearInputLayer, InvalidMatrixShapeError, \
POP_ADAPT_DICT
from common.utils import LOGGER, optimal_rounding
SIMULATION_END_T = 0
pynnn.setup()
PYNN_TIME_STEP = pynnn.get_time_step()
PYNN_TIME_ROUNDING = optimal_rounding(PYNN_TIME_STEP)
RATE_ENC_RESPAWN_DICT = dict()
class DummyProcess(sim.Process):
def ACTIONS(self):
yield sim.hold, self, 0
def get_current_time():
return sim.now()
def setUp(self):
sim.setup()
self.syn = sim.StaticSynapse(weight=0.123, delay=0.5)
def main():
## Uninteresting setup, start up the visu process,...
logfile = make_logfile_name()
ensure_dir(logfile)
f_h = logging.FileHandler(logfile)
f_h.setLevel(SUBDEBUG)
d_h = logging.StreamHandler()
d_h.setLevel(INFO)
utils.configure_loggers(debug_handler=d_h, file_handler=f_h)
parent_conn, child_conn = multiprocessing.Pipe()
p = multiprocessing.Process(
target=visualisation.visualisation_process_f,
name="display_process", args=(child_conn, LOGGER))
p.start()
pynnn.setup(timestep=SIMU_TIMESTEP)
init_logging("logfile", debug=True)
LOGGER.info("Simulation started with command: %s", sys.argv)
## Network setup
# First population
p1 = pynnn.Population(100, pynnn.IF_curr_alpha,
structure=pynnn.space.Grid2D())
p1.set({'tau_m':20, 'v_rest':-65})
# Second population
p2 = pynnn.Population(20, pynnn.IF_curr_alpha,
cellparams={'tau_m': 15.0, 'cm': 0.9})
# Projection 1 -> 2
prj1_2 = pynnn.Projection(
p1, p2, pynnn.AllToAllConnector(allow_self_connections=False),
target='excitatory')
# I may need to make own PyNN Connector class. Otherwise, this is
# neat: exponentially decaying probability of connections depends
# on distance. Distance is only calculated using x and y, which
# are on a toroidal topo with boundaries at 0 and 500.
connector = pynnn.DistanceDependentProbabilityConnector(
"exp(-abs(d))",
space=pynnn.Space(
axes='xy', periodic_boundaries=((0,500), (0,500), None)))
# Alternately, the powerful connection set algebra (python CSA
# module) can be used.
weight_distr = pynnn.RandomDistribution(distribution='gamma',
parameters=[1,0.1])
prj1_2.randomizeWeights(weight_distr)
# This one is in NEST but not in Brian:
# source = pynnn.NoisyCurrentSource(
# mean=100, stdev=50, dt=SIMU_TIMESTEP,
# start=10.0, stop=SIMU_DURATION, rng=pynnn.NativeRNG(seed=100))
source = pynnn.DCSource(
start=10.0, stop=SIMU_DURATION, amplitude=100)
source.inject_into(list(p1.sample(50).all()))
p1.record(to_file=False)
p2.record(to_file=False)
## Build and send the visualizable network structure
adapter = pynn_to_visu.PynnToVisuAdapter(LOGGER)
adapter.add_pynn_population(p1)
adapter.add_pynn_population(p2)
adapter.add_pynn_projection(p1, p2, prj1_2.connection_manager)
adapter.commit_structure()
parent_conn.send(adapter.output_struct)
# Number of chunks to run the simulation:
n_chunks = SIMU_DURATION // SIMU_TO_VISU_MESSAGE_PERIOD
last_chunk_duration = SIMU_DURATION % SIMU_TO_VISU_MESSAGE_PERIOD
# Run the simulator
for visu_i in xrange(n_chunks):
pynnn.run(SIMU_TO_VISU_MESSAGE_PERIOD)
parent_conn.send(adapter.make_activity_update_message())
LOGGER.debug("real current p1 spike counts: %s",
p1.get_spike_counts().values())
if last_chunk_duration > 0:
pynnn.run(last_chunk_duration)
parent_conn.send(adapter.make_activity_update_message())
# Cleanup
pynnn.end()
# Wait for the visualisation process to terminate
p.join(VISU_PROCESS_JOIN_TIMEOUT)
# You should have received a copy of the GNU General Public License
# along with PyCogMo. If not, see <http://www.gnu.org/licenses/>.
import itertools
import logging
from logging import NullHandler
from mock import Mock, patch
from nose import with_setup
from nose.tools import eq_, raises, timed
from ui.graphical.pynn_to_visu import *
import pyNN.brian as pynnn
DUMMY_LOGGER = logging.getLogger("testLogger")
DUMMY_LOGGER.addHandler(NullHandler())
A = None
pynnn.setup()
def setup_adapter():
global A
A = PynnToVisuAdapter(DUMMY_LOGGER)
# holder class ("namespace") for the test variables
class Tns(object):
pass
def setup_and_fill_adapter():
setup_adapter()
Tns.pop_size = 27
import pyNN.brian as sim
sim.setup()
cell = sim.Population(1, sim.HH_cond_exp())
cell.record('v')
sim.run(100)
data = cell.get_data()
sim.end()
def main():
## Uninteresting setup, start up the visu process,...
logfile = make_logfile_name()
ensure_dir(logfile)
f_h = logging.FileHandler(logfile)
f_h.setLevel(SUBDEBUG)
d_h = logging.StreamHandler()
d_h.setLevel(INFO)
utils.configure_loggers(debug_handler=d_h, file_handler=f_h)
parent_conn, child_conn = multiprocessing.Pipe()
p = multiprocessing.Process(target=visualisation.visualisation_process_f,
name="display_process",
args=(child_conn, LOGGER))
p.start()
pynnn.setup(timestep=SIMU_TIMESTEP)
init_logging("logfile", debug=True)
LOGGER.info("Simulation started with command: %s", sys.argv)
## Network setup
# First population
p1 = pynnn.Population(100,
pynnn.IF_curr_alpha,
structure=pynnn.space.Grid2D())
p1.set({'tau_m': 20, 'v_rest': -65})
# Second population
p2 = pynnn.Population(20,
pynnn.IF_curr_alpha,
cellparams={
'tau_m': 15.0,
'cm': 0.9
})
# Projection 1 -> 2
prj1_2 = pynnn.Projection(
p1,
p2,
pynnn.AllToAllConnector(allow_self_connections=False),
target='excitatory')
# I may need to make own PyNN Connector class. Otherwise, this is
# neat: exponentially decaying probability of connections depends
# on distance. Distance is only calculated using x and y, which
# are on a toroidal topo with boundaries at 0 and 500.
connector = pynnn.DistanceDependentProbabilityConnector(
"exp(-abs(d))",
space=pynnn.Space(axes='xy',
periodic_boundaries=((0, 500), (0, 500), None)))
# Alternately, the powerful connection set algebra (python CSA
# module) can be used.
weight_distr = pynnn.RandomDistribution(distribution='gamma',
parameters=[1, 0.1])
prj1_2.randomizeWeights(weight_distr)
# This one is in NEST but not in Brian:
# source = pynnn.NoisyCurrentSource(
# mean=100, stdev=50, dt=SIMU_TIMESTEP,
# start=10.0, stop=SIMU_DURATION, rng=pynnn.NativeRNG(seed=100))
source = pynnn.DCSource(start=10.0, stop=SIMU_DURATION, amplitude=100)
source.inject_into(list(p1.sample(50).all()))
p1.record(to_file=False)
p2.record(to_file=False)
## Build and send the visualizable network structure
adapter = pynn_to_visu.PynnToVisuAdapter(LOGGER)
adapter.add_pynn_population(p1)
adapter.add_pynn_population(p2)
adapter.add_pynn_projection(p1, p2, prj1_2.connection_manager)
adapter.commit_structure()
parent_conn.send(adapter.output_struct)
# Number of chunks to run the simulation:
n_chunks = SIMU_DURATION // SIMU_TO_VISU_MESSAGE_PERIOD
last_chunk_duration = SIMU_DURATION % SIMU_TO_VISU_MESSAGE_PERIOD
# Run the simulator
for visu_i in xrange(n_chunks):
pynnn.run(SIMU_TO_VISU_MESSAGE_PERIOD)
parent_conn.send(adapter.make_activity_update_message())
LOGGER.debug("real current p1 spike counts: %s",
p1.get_spike_counts().values())
if last_chunk_duration > 0:
pynnn.run(last_chunk_duration)
parent_conn.send(adapter.make_activity_update_message())
# Cleanup
pynnn.end()
# Wait for the visualisation process to terminate
p.join(VISU_PROCESS_JOIN_TIMEOUT)