Improve the performance of RAM capacity

gartz89 · January 13, 2019, 23:02

Hello guys and happy new year. I would like to ask one interesting question, about the hardware for Fluent. I was updating my computer before one week with more RAM from 8GB to 24GB, so I improved the performence. But the main problem is when I solve the model (calculate) the computer isn't use the whole capacity of RAM. I compare before, because when I had 8GB of my stationary PC the loading was 100% and now is only 35%. Is there option to use the whole capacity of RAM in the time of calculations. Thank you!

LuckyTran · January 13, 2019, 23:08

It only uses as much RAM as it needs. But going from 100% RAM load (which probably means it was thrashing/swapping onto the hard drive) and going to <100% RAM load is very good and you should already be seeing a huge improvement.

RAM capacity doesn't affect RAM bandwidth so you won't see any speed improvement by upgrading to more RAM even if you add 100TB of RAM.

January 13, 2019, 23:02	Improve the performance of RAM capacity	#1
gartz89 Member Angel Penev Join Date: Apr 2016 Location: Bulgaria Posts: 47 Rep Power: 10	Hello guys and happy new year. I would like to ask one interesting question, about the hardware for Fluent. I was updating my computer before one week with more RAM from 8GB to 24GB, so I improved the performence. But the main problem is when I solve the model (calculate) the computer isn't use the whole capacity of RAM. I compare before, because when I had 8GB of my stationary PC the loading was 100% and now is only 35%. Is there option to use the whole capacity of RAM in the time of calculations. Thank you!

January 13, 2019, 23:08		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,739 Rep Power: 66	It only uses as much RAM as it needs. But going from 100% RAM load (which probably means it was thrashing/swapping onto the hard drive) and going to <100% RAM load is very good and you should already be seeing a huge improvement. RAM capacity doesn't affect RAM bandwidth so you won't see any speed improvement by upgrading to more RAM even if you add 100TB of RAM. gartz89 likes this.

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