Re: 2CPU+1GPU vs 1CPU+2GPU

From: Nicholas M Glykos (glykos_at_mbg.duth.gr)
Date: Mon Feb 13 2012 - 05:44:59 CST

You will (hopefully) hear from Axel on this, but :

> as it would give more speed for our NAMD based simulations

Is this an assumption or the result of benchmarking the two hardware
configurations with your intended system sizes ? For small (atom-wise)
systems, you shouldn't expect much improvement by increasing the number of
GPUs (and for tiny systems the 1CPU+2GPU may not scale at all).

My twocents,
Nicholas

-- 
            Nicholas M. Glykos, Department of Molecular Biology
     and Genetics, Democritus University of Thrace, University Campus,
  Dragana, 68100 Alexandroupolis, Greece, Tel/Fax (office) +302551030620,
    Ext.77620, Tel (lab) +302551030615, http://utopia.duth.gr/~glykos/

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