Figure 3.

Reduction in runtime with parallelization. (A) 5x speedup with 8 threads with 250³ (15,625,000) extracellular voxels for example in section 3.1. (B) A spreading depression example with 1mm³ tissue, with 250,000 two compartment neurons and 150³ (3,375,000) voxels. Electrophysiology accounts for 62% of the runtime with one process (with 38% due to extracellular rxd), this is reduced to 22% when four processes are used, increasing the relative burden of extracellular rxd to 78%. Walltime minimum and standard error are shown for 5 runs of each simulation performed on a 24 core system (4 Intel Xeon L5640 processors).