Two events of particular interest to computational neuroscientists will be presented as satellite sessions to the 2015 SFN meeting in Chicago. Using NEURON to Model Cells and Networks Friday, Oct. 16 from 9 AM to 5 PM at a site in downtown Chicago This course provides a practical introduction to building and using models of neurons and networks with NEURON. Covered topics include basic concepts, workflow for building and using models, speeding up simulations with parallel hardware from multicore personal computers to massively parallel supercomputers, using Python with NEURON, and modeling reactive diffusion with the RxD class. Using the Neuroscience Gateway Portal for Parallel Simulation Saturday, Oct. 17 from 9 AM to noon at a site in downtown Chicago This workshop combines didactic presentations with hands on instruction on how to use the Neuroscience Gateway Portal (NSG) for parallel simulations. NSG eliminates most adminstrative and technical barriers to using high performance computing resources--it even gives away free CPU time. Simulators that are currently installed on NSG include NEST, PyNN, Brian, GENESIS3, NEURON, and MOOSE. Also available is FreeSurfer, a set of tools for analysis and visualization of structural and functional brain imaging data. Friday, Oct. 2, is the registration deadline for both of these events, but you should sign up early because space is limited. See https://www.neuron.yale.edu/neuron/courses for more information and links to registration forms. --Ted