Table 1 Memory requirements per particle
From: PKDGRAV3: beyond trillion particle cosmological simulations for the next era of galaxy surveys
Persistent 28 bytes | Ephemeral 0-8 bytes | Tree 25 bytes | Buffers \({\sim}5~\mbox{bytes}\) |
Buffers are \(\mathcal{O}(125~\mbox{MB})\) per thread. Here we assume 16 threads with \(\mathbf{5} \boldsymbol{\times} \mathbf{10}^{\mathbf{8}}\) particles on a 32 GB node. | |||