# Introduction Plasticity processes are mediated by signalling ions, eg Ca++, which are generated by synapses upon reception of a spike. This adds a quantity `Xd` for any ion `X` - initialised as `Xi` - read from and written to by NMODL density and point mechanisms. - propagates according to a diffusion law `∂_t Xd = ∂_z c X ∂_z Xd + iX/qi`. - in contrast to `Xi` and `Xo` there's no buffering and the update in mechanisms occurs atomically (and at a different time) More details can be found in the documentation. For the future there are some low hanging optimisations - per-ion conductivity for the matrix solver could be disabled if no diffusion is computed - cable and diffusion solvers store duplicates of the solver state, could be merged Closes #1651
Arbor is a library for implementing performance portable network simulations of multi-compartment neuron models.
An installation guide and library documentation are available online at Read the Docs.
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The Arbor introductory paper and entry on Zenodo can be cited, see CITATION.bib. Please refer to our documentation for more information.