Re: [EnergyPlus_Support] Performance and Hard Drive Speed

[Edwin Lee <leeed2001@xxxxxxxxx>]

Output files are not generated at the end of the simulation, they are reported stream of consciousness.  For output-heavy simulations, the hard drive speed could certainly be a factor

On Wed, Aug 24, 2011 at 20:22, Suh, Won-Jun <qqq000feel@xxxxxxxx> wrote:

 

I think that the data of IDF and internal variables are moved to the RAM space from HDD space when you are running the EPlus simulation. So the running time will be a matter between the CPU and RAM, not HDD I think.

Of course, if you have extremely fast storage device, like SSD or RAID HDD, the generation of output files will be faster than

slow devices. However, this phase is only the last step of simulation, so it will now affect so much on the overall runtime.

 

From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Karen Walkerman
Sent: Thursday, August 25, 2011 7:30 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Performance and Hard Drive Speed

 

 

Hi,

 

When running EnergyPlus on a laptop how much does hard drive speed affect execution time?

 

Thanks,

 

Karen

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