The FAQ about the kind of parallel computers or clusters needed to use PETSc states:
"any ethernet (even 10 GigE) simply cannot provide the needed performance." Does this statement still hold now that 100 GigE is common? The broader question is that we are buying a new cluster to run our in-house CFD solver ReFRESCO. Typical production runs involve meshes up-to a few hundred million cells with half a dozen to a dozen equations. Most of the time is spend in KSPSolve. What kind of interconnect should we consider? Chris dr. ir. Christiaan Klaij | Senior Researcher | Research & Development T +31 317 49 33 44 | c.kl...@marin.nl | https://urldefense.us/v3/__http://www.marin.nl__;!!G_uCfscf7eWS!dt6x5cNbKBO3l1-VxdzJE9uFUPtHLCnCR8P_q3-23XmiXKMfKyoNWokTX4wRbgFq3HSDmSVi6AIdO8MFA71dUnQ$