Thank you for your reply Hans!
I am using Nest-2.20.0 installed with Conda on Mac os 10.14 Mojave. I have just tried removing the environment and reinstalling using Conda again, but ran into the same issue. What should I do to troubleshoot this?
Thank you so much and best wishes, Josh
On Thu, Mar 26, 2020 at 2:52 AM Hans Ekkehard Plesser < hans.ekkehard.plesser@nmbu.no> wrote:
Hi Josh,
Thanks for your report! This does not look like a memory issue but may point to some internal inconsistency in NEST.
A few questions:
- Which version of NEST are you using?
- How did you install NEST (looks like you used conda)?
- Which operating system are you using?
Best, Hans Ekkehard
On 25 Mar 2020, at 18:29, sternj@college.harvard.edu wrote:
Hello all,
Hope everyone is staying safe and well in these difficult times.
I am an undergrad who is just getting started with this library, so I want to apologize in advance for the basic question. I am having issues I believe are memory-related when I call GetConnections on rather small networks. Here is my script:
import nest # memory testing nest.ResetKernel() n = 5 # number of neurons epop1 = nest.Create("iaf_psc_alpha",n) epop2 = nest.Create("iaf_psc_alpha",n) nest.Connect(epop1,epop2,{'rule': 'all_to_all'})
# we can now query the synapses using GetConnections conns = nest.GetConnections(epop1,target = epop2) nest.GetStatus(conns,["target","weight"])
This runs fine for n < 5, but I get the following error with n >=5:
Assertion failed: (source_lid < MAX_LID), function set_source_lid, file /usr/local/miniconda/conda-bld/nest-simulator_1583214474797/work/nestkernel/target_data.h, line 264. Abort trap: 6
I have run some of the example scripts like brunel_alpha_numpy with a few thousand neurons and they work just fine.
Am I making an improper call to GetConnections here? And if so, what is a better way to dynamically check connectivity? Alternatively, might there be something wrong with my Nest environment? And if so, what should I look at to troubleshoot this?
Thank you so much for your help.
Best wishes, Josh _______________________________________________ NEST Users mailing list -- users@nest-simulator.org To unsubscribe send an email to users-leave@nest-simulator.org
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