Does SSD affect the simulation speed?

asoltoon · December 17, 2017, 16:55

Hi everybody,

Does anyone investigated the effect of replacing a HDD with a SSD on simulation speed for example in fluent?

flotus1 · December 17, 2017, 17:48

Depends if your simulation is i/o-bound or not. E.g. for transient simulations that write a lot of data while computing the solution, fast storage definitely helps.

evcelica · December 27, 2017, 12:39

I found it help most with post processing of large transient simulations. For example, making transient charts with a lot of time steps can take a very long time, and SSDs help a lot with that. During the solve usually there is not a big difference unless you have a situation like Alex describes, but that is usually rare, and the post processing will take much more time if you are writing that many results anyways.

December 17, 2017, 16:55	Does SSD affect the simulation speed?	#1
asoltoon Member Ali Khalifesoltani Join Date: Mar 2011 Location: Esfahan, Iran Posts: 56 Rep Power: 15	Hi everybody, Does anyone investigated the effect of replacing a HDD with a SSD on simulation speed for example in fluent?

December 17, 2017, 17:48		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,427 Rep Power: 49	Depends if your simulation is i/o-bound or not. E.g. for transient simulations that write a lot of data while computing the solution, fast storage definitely helps. sharonyue likes this.

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December 27, 2017, 12:39		#3
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,188 Rep Power: 23	I found it help most with post processing of large transient simulations. For example, making transient charts with a lot of time steps can take a very long time, and SSDs help a lot with that. During the solve usually there is not a big difference unless you have a situation like Alex describes, but that is usually rare, and the post processing will take much more time if you are writing that many results anyways.