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Last modified by galluzziandrea on 2022/06/20 12:33
From version 7.1
edited by galluzziandrea
on 2021/12/09 14:49
Change comment: There is no comment for this version
To version 8.1
edited by galluzziandrea
on 2021/12/09 14:58
Change comment: There is no comment for this version

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... ... @@ -235,9 +235,94 @@
235 235  # [.....],[],...]
236 236  {{/code}}
237 237  
238 +=== Defining general and nest.kernel parameters ===
238 238  
240 +{{code language="python"}}
241 +#############################------------------------------------------------------------------------
242 +#Clean the Network
243 +#############################------------------------------------------------------------------------
244 +nest.ResetKernel()
239 239  
246 +#############################------------------------------------------------------------------------
247 +#insert the introductory parameters of the simulation
248 +#############################------------------------------------------------------------------------
240 240  
250 +
251 +dt = 0.1 # the resolution in ms
252 +StartMisure=0. # start time of measurements
253 +simtime = int(float(InfoPerseo[3])) # Simulation time in ms (200 s)
254 +if simtime<=StartMisure: # If the simulation time is less than StartMisure, it is increased by StartMisure
255 + simtime=simtime+StartMisure
256 +start=0.0 # start time of poissonian processes
257 +origin=0.0 # temporal origin
258 +
259 +#############################------------------------------------------------------------------------
260 +# Kernel parameters
261 +#############################------------------------------------------------------------------------
262 +LNT=multiprocessing.cpu_count();
263 +nest.SetKernelStatus({"local_num_threads": LNT})
264 +nest.SetKernelStatus({"resolution": dt, "print_time": True,
265 + "overwrite_files": True})
266 +
267 +#############################------------------------------------------------------------------------
268 +#"randomize" the seeds of the random generators
269 +#############################------------------------------------------------------------------------
270 +
271 +#msd = int(math.fabs(time.process_time()*1000))
272 +#N_vp = nest.GetKernelStatus(['total_num_virtual_procs'])[0]
273 +#pyrngs = [numpy.random.RandomState(s) for s in range(msd, msd+N_vp)]
274 +#nest.SetKernelStatus({"grng_seed" : msd+N_vp})
275 +#nest.SetKernelStatus({"rng_seeds" : list(range(msd+N_vp+1, msd+2*N_vp+1))})
276 +{{/code}}
277 +
278 +=== Building the network: neuronal populations , Poisson processes and spike detectors ===
279 +
280 +{{code language="python"}}
281 +#############################------------------------------------------------------------------------
282 +print("Building network")
283 +#############################------------------------------------------------------------------------
284 +
285 +startbuild = time.time() #initialize the calculation of the time used to simulate
286 +
287 +NeuronPop=[]
288 +NoisePop=[]
289 +DetectorPop=[]
290 +
291 +#define and initialize the populations of neurons with the parameters extracted from the.ini files
292 +for i in range(1,int(InfoBuild[0])+1):
293 + if int(InfoBuild[i][7])==0:
294 + app=float(InfoBuild[i][5])
295 + else:
296 + app=0.
297 + app2= nest.Create("aeif_psc_exp", int(InfoBuild[i][0]),params={"C_m": 1.0,
298 + "g_L": 1.0/float(InfoBuild[i][3]),
299 + "t_ref": float(InfoBuild[i][6]),
300 + "E_L": 0.0,
301 + "V_reset": float(InfoBuild[i][5]),
302 + "V_m": app,
303 + "V_th": float(InfoBuild[i][4]),
304 + "Delta_T": 0.,
305 + "tau_syn_ex": 1.0,
306 + "tau_syn_in": 1.0,
307 + "a": 0.0,
308 + "b": float(InfoBuild[i][10]),
309 + "tau_w": float(InfoBuild[i][9]),
310 + "V_peak":float(InfoBuild[i][4])+10.0})
311 + NeuronPop.append(app2)
312 +
313 +#define and initialize the poisson generators and the spike detectors with the parameters extracted from the.ini files
314 +
315 +for i in range(1,int(InfoBuild[0])+1):
316 + app3= nest.Create("poisson_generator",params={"rate": float(InfoBuild[i][1]*InfoBuild[i][2]),
317 + 'origin':0.,
318 + 'start':start})
319 + NoisePop.append(app3)
320 + app4 = nest.Create("spike_recorder",params={ "start":StartMisure})
321 + DetectorPop.append(app4)
322 +
323 +endbuild = time.time()
324 +{{/code}}
325 +
241 241  === Results ===
242 242  
243 243  ==== ====