Dear NEST community： We all know that distributed computing is carried out in Nest, and neurons are distributed to each neuron through polling. However, considering the load balancing and sparsity of communication, this is a NP hard problem. Should we adopt some other methods, such as directed graph segmentation technology. Whether this will be considered in Nest, or whether graph segmentation is helpful in SNN simulation.
If you can spare time to reply, thank you very much
Hello 1538356357,
May I ask you to sign messages to the NEST User mailing list with your name as a courtesy to all community members?
Concerning your question, NEST distributes neurons using a simple round-robin algorithm among the virtual processes, which again are systematically mapped to MPI ranks and OpenMP threads. Exceptions are recording and stimulation devices, which are replicated on each virtual process and devices support MUSIC, which are replicated once per MPI rank.
Best regards, Hans Ekkehard
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Prof. Dr. Hans Ekkehard Plesser Head, Department of Data Science President, The NEST Initiative
Faculty of Science and Technology Norwegian University of Life Sciences PO Box 5003, 1432 Aas, Norway
Phone +47 6723 1560 Email hans.ekkehard.plesser@nmbu.nomailto:hans.ekkehard.plesser@nmbu.no Home http://arken.nmbu.no/~plesser
From: 1538356357@qq.com 1538356357@qq.com Date: Wednesday, 16 November 2022 at 03:20 To: users@nest-simulator.org users@nest-simulator.org Subject: [NEST Users] About Polling Algorithm [Some people who received this message don't often get email from 1538356357@qq.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
Dear NEST community： We all know that distributed computing is carried out in Nest, and neurons are distributed to each neuron through polling. However, considering the load balancing and sparsity of communication, this is a NP hard problem. Should we adopt some other methods, such as directed graph segmentation technology. Whether this will be considered in Nest, or whether graph segmentation is helpful in SNN simulation.
If you can spare time to reply, thank you very much _______________________________________________ NEST Users mailing list -- users@nest-simulator.org To unsubscribe send an email to users-leave@nest-simulator.org
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Hans Ekkehard Plesser