NAMD with two GPUs

From: Priyan Amaras (priyan.amaras_at_yahoo.com)
Date: Wed Mar 24 2010 - 21:35:46 CDT

Hi Everyone,
I running simulations with two GPUs. I use this command to run the simulation.

 ./charmrun ++local +p<procs> ./namd2 +idlepoll +devices 0,1 <configfile>

But the simulation speed with two GPUs is no different from the speed with only one GPU.
Do I have to do anything else in order to utilize the second GPU?

Thanks,
Priyan

      

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