Hi Chiara,

you can try the following approach:

wr = nest.Create('weight_recorder') nest.CopyModel('stdp_synapse', 'model_name') nest.SetDefaults('model_name',{'weight_recorder': wr[0]})

nest.Connect(..., syn_spec = 'model_name')

OR

nest.Connect(...,'one_to_one',{'model': 'model_name', 'weight': {"distribution": "uniform", "low": w_min, "high": w_max} })

I hope this helps.

Ciao,

Alberto

Alberto Antonietti, Ph.D. Nearlab - NeuroEngineering And medical Robotics Laboratory Department of Electronics, Information and Bioengineering Politecnico di Milano

Department of Brain and Behavioral Sciences - Unit of Neurophysiology University of Pavia, Italy

http://www.nearlab.polimi.it/ http://www-5.unipv.it/dangelo/

On 12/07/2019 12:41, deluca.1665541@studenti.uniroma1.itmailto:deluca.1665541@studenti.uniroma1.it wrote:

Hello everyone!

I need to take track of the weight of a set of synapses through time. I know that there already is a device to do that implemented in nest. According to its documentation, the 'weight recorder' should be created and, then, specified in a synapse model through the command:

wr = nest.Create('weight_recorder') nest.CopyModel('stdp_synapse', 'model_name', {'weight_recorder': wr}) nest.Connect(..., syn_spec = 'model_name')

The problem is that my synapses have weights distributed by a uniform distribution defined as:

'weight': {"distribution": "uniform", "low": w_min, "high": w_max}

but whenever I try to set this in CopyModel I get the following error:

terminate called without an active exception [q035:13577] *** Process received signal *** [q035:13577] Signal: Aborted (6) [q035:13577] Signal code: (-6) [q035:13577] [ 0] /lib64/libpthread.so.0(+0xf370)[0x2b4ae83d4370] [q035:13577] [ 1] /lib64/libc.so.6(gsignal+0x37)[0x2b4ae8d1f1d7] [q035:13577] [ 2] /lib64/libc.so.6(abort+0x148)[0x2b4ae8d208c8] [q035:13577] [ 3] /lib64/libstdc++.so.6(_ZN9__gnu_cxx27__verbose_terminate_handlerEv+0x165)[0x2b4b3cb049d5] [q035:13577] [ 4] /lib64/libstdc++.so.6(+0x5e946)[0x2b4b3cb02946] [q035:13577] [ 5] /lib64/libstdc++.so.6(+0x5e973)[0x2b4b3cb02973] [q035:13577] [ 6] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libnestkernel.so(+0x85edc)[0x2b4b3b2eeedc] [q035:13577] [ 7] /lib64/libgomp.so.1(GOMP_parallel+0x3f)[0x2b4b3cdbb08f] [q035:13577] [ 8] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libnestkernel.so(_ZN4nest12ModelManager21set_synapse_defaults_EmRK12lockPTRDatumI10DictionaryXadL_ZN14SLIInterpreter14DictionarytypeEEEE+0x65)[0x2b4b3b2eaae5] [q035:13577] [ 9] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libnestkernel.so(_ZN4nest12ModelManager10copy_modelE4NameS1_12lockPTRDatumI10DictionaryXadL_ZN14SLIInterpreter14DictionarytypeEEEE+0x2bd)[0x2b4b3b2ecfdd] [q035:13577] [10] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libnestkernel.so(_ZNK4nest10NestModule23CopyModel_l_l_DFunction7executeEP14SLIInterpreter+0x112)[0x2b4b3b2f93f2] [q035:13577] [11] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libsli.so(_ZN13FunctionDatum7executeEP14SLIInterpreter+0x123)[0x2b4b3bf70473] [q035:13577] [12] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libsli.so(_ZN14SLIInterpreter8execute_Em+0x312)[0x2b4b3bf6d382] [q035:13577] [13] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libsli.so(_ZN14SLIInterpreter7executeERKSs+0x128)[0x2b4b3bf6d8a8] [q035:13577] [14] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/pynestkernel.so(+0x23cf5)[0x2b4b3a160cf5] [q035:13577] [15] /lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x6d62)[0x2b4ae80dea62] [q035:13577] [16] /lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x67bd)[0x2b4ae80de4bd] [q035:13577] [17] /lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x2b4ae80e0e3d] [q035:13577] [18] /lib64/libpython2.7.so.1.0(+0x7088d)[0x2b4ae806a88d] [q035:13577] [19] /lib64/libpython2.7.so.1.0(PyObject_Call+0x43)[0x2b4ae80458e3] [q035:13577] [20] /lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x17fd)[0x2b4ae80d94fd] [q035:13577] [21] /lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x2b4ae80e0e3d] [q035:13577] [22] /lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x663c)[0x2b4ae80de33c] [q035:13577] [23] /lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x2b4ae80e0e3d] [q035:13577] [24] /lib64/libpython2.7.so.1.0(PyEval_EvalCode+0x32)[0x2b4ae80e0f42] [q035:13577] [25] /lib64/libpython2.7.so.1.0(+0x10037f)[0x2b4ae80fa37f] [q035:13577] [26] /lib64/libpython2.7.so.1.0(PyRun_InteractiveOneFlags+0x150)[0x2b4ae80fc430] [q035:13577] [27] /lib64/libpython2.7.so.1.0(PyRun_InteractiveLoopFlags+0x5e)[0x2b4ae80fc61e] [q035:13577] [28] /lib64/libpython2.7.so.1.0(PyRun_AnyFileExFlags+0x3e)[0x2b4ae80fccae] [q035:13577] [29] /lib64/libpython2.7.so.1.0(Py_Main+0xc9f)[0x2b4ae810d91f] [q035:13577] *** End of error message *** Annullato (core dumped)

Can somebody help me?

Thank you!

Chiara _______________________________________________ NEST Users mailing list -- users@nest-simulator.orgmailto:users@nest-simulator.org To unsubscribe send an email to users-leave@nest-simulator.orgmailto:users-leave@nest-simulator.org

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Dear Chiara,

glad to hear that your problem got solved by Alberto's suggestion.

That said, a segfault should definitely not happen here. Can you please send us the original simulation script that you used to trigger the crash?

If that's confidential, I'd be most interested in how many threads you used and possibly some more details for the code snipped below in order to give us a complete but minimal reproducer.

Many thanks, Jochen!

On 12.07.19 12:41, deluca.1665541@studenti.uniroma1.it wrote:

Hello everyone!

I need to take track of the weight of a set of synapses through time. I know that there already is a device to do that implemented in nest. According to its documentation, the 'weight recorder' should be created and, then, specified in a synapse model through the command:

wr = nest.Create('weight_recorder') nest.CopyModel('stdp_synapse', 'model_name', {'weight_recorder': wr}) nest.Connect(..., syn_spec = 'model_name')

The problem is that my synapses have weights distributed by a uniform distribution defined as:

'weight': {"distribution": "uniform", "low": w_min, "high": w_max}

but whenever I try to set this in CopyModel I get the following error:

terminate called without an active exception [q035:13577] *** Process received signal *** [q035:13577] Signal: Aborted (6) [q035:13577] Signal code: (-6) [q035:13577] [ 0] /lib64/libpthread.so.0(+0xf370)[0x2b4ae83d4370] [q035:13577] [ 1] /lib64/libc.so.6(gsignal+0x37)[0x2b4ae8d1f1d7] [q035:13577] [ 2] /lib64/libc.so.6(abort+0x148)[0x2b4ae8d208c8] [q035:13577] [ 3] /lib64/libstdc++.so.6(_ZN9__gnu_cxx27__verbose_terminate_handlerEv+0x165)[0x2b4b3cb049d5] [q035:13577] [ 4] /lib64/libstdc++.so.6(+0x5e946)[0x2b4b3cb02946] [q035:13577] [ 5] /lib64/libstdc++.so.6(+0x5e973)[0x2b4b3cb02973] [q035:13577] [ 6] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libnestkernel.so(+0x85edc)[0x2b4b3b2eeedc] [q035:13577] [ 7] /lib64/libgomp.so.1(GOMP_parallel+0x3f)[0x2b4b3cdbb08f] [q035:13577] [ 8] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libnestkernel.so(_ZN4nest12ModelManager21set_synapse_defaults_EmRK12lockPTRDatumI10DictionaryXadL_ZN14SLIInterpreter14DictionarytypeEEEE+0x65)[0x2b4b3b2eaae5] [q035:13577] [ 9] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libnestkernel.so(_ZN4nest12ModelManager10copy_modelE4NameS1_12lockPTRDatumI10DictionaryXadL_ZN14SLIInterpreter14DictionarytypeEEEE+0x2bd)[0x2b4b3b2ecfdd] [q035:13577] [10] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libnestkernel.so(_ZNK4nest10NestModule23CopyModel_l_l_DFunction7executeEP14SLIInterpreter+0x112)[0x2b4b3b2f93f2] [q035:13577] [11] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libsli.so(_ZN13FunctionDatum7executeEP14SLIInterpreter+0x123)[0x2b4b3bf70473] [q035:13577] [12] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libsli.so(_ZN14SLIInterpreter8execute_Em+0x312)[0x2b4b3bf6d382] [q035:13577] [13] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/../../../libsli.so(_ZN14SLIInterpreter7executeERKSs+0x128)[0x2b4b3bf6d8a8] [q035:13577] [14] /opt/NEST-nesters/lib64/python2.7/site-packages/nest/pynestkernel.so(+0x23cf5)[0x2b4b3a160cf5] [q035:13577] [15] /lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x6d62)[0x2b4ae80dea62] [q035:13577] [16] /lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x67bd)[0x2b4ae80de4bd] [q035:13577] [17] /lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x2b4ae80e0e3d] [q035:13577] [18] /lib64/libpython2.7.so.1.0(+0x7088d)[0x2b4ae806a88d] [q035:13577] [19] /lib64/libpython2.7.so.1.0(PyObject_Call+0x43)[0x2b4ae80458e3] [q035:13577] [20] /lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x17fd)[0x2b4ae80d94fd] [q035:13577] [21] /lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x2b4ae80e0e3d] [q035:13577] [22] /lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x663c)[0x2b4ae80de33c] [q035:13577] [23] /lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x2b4ae80e0e3d] [q035:13577] [24] /lib64/libpython2.7.so.1.0(PyEval_EvalCode+0x32)[0x2b4ae80e0f42] [q035:13577] [25] /lib64/libpython2.7.so.1.0(+0x10037f)[0x2b4ae80fa37f] [q035:13577] [26] /lib64/libpython2.7.so.1.0(PyRun_InteractiveOneFlags+0x150)[0x2b4ae80fc430] [q035:13577] [27] /lib64/libpython2.7.so.1.0(PyRun_InteractiveLoopFlags+0x5e)[0x2b4ae80fc61e] [q035:13577] [28] /lib64/libpython2.7.so.1.0(PyRun_AnyFileExFlags+0x3e)[0x2b4ae80fccae] [q035:13577] [29] /lib64/libpython2.7.so.1.0(Py_Main+0xc9f)[0x2b4ae810d91f] [q035:13577] *** End of error message *** Annullato (core dumped)

Can somebody help me?

Thank you!

Chiara _______________________________________________ NEST Users mailing list -- users@nest-simulator.org To unsubscribe send an email to users-leave@nest-simulator.org

-- Dr. Jochen Martin Eppler Phone: +49(2461)61-96653 ---------------------------------- Simulation Laboratory Neuroscience Jülich Supercomputing Centre Institute for Advanced Simulation

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