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NT8 optimization fills 100% of physical memory then crashes
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Created: by paulrobert Attachments:1

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NT8 optimization fills 100% of physical memory then crashes

 
Trading Apprentice
Arlington VA
 
Trading Experience: Beginner
Platform: NinjaTrader
Favorite Futures: CL
 
Posts: 11 since Feb 2017
Thanks: 0 given, 2 received

NT8 optimization fills 100% of physical memory then crashes

I am attempting to run an NT8 optimization on a fully-automated strategy called NanoScalper.I have an Intel i7, SSD, and 32 GB of RAM.

Regardless of the number of iterations, the physical memory used climbs to around 100% at which point NT8 crashes. The CPU usage spikes and eventually returns to around 5%, but the physical memory % never decreases.

I have considerably more processing power than what is recommended for NT8, so I am trying to figure out if I need to change a setting within the application.

Thanks in advance!

Paul

 
 
Elite Member
Gits (Hooglede) Belgium
 
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Favorite Futures: 6A, 6B, 6C, 6E, 6J, 6S, ES, NQ, YM, AEX, CL, NG, ZB, ZN, ZC, ZS, GC
 
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paulrobert View Post
I am attempting to run an NT8 optimization on a fully-automated strategy called NanoScalper.I have an Intel i7, SSD, and 32 GB of RAM.

Regardless of the number of iterations, the physical memory used climbs to around 100% at which point NT8 crashes. The CPU usage spikes and eventually returns to around 5%, but the physical memory % never decreases.

I have considerably more processing power than what is recommended for NT8, so I am trying to figure out if I need to change a setting within the application.

Thanks in advance!

Paul

what instrument ?
what period of time ?

have you tried shorter period ?

 
 
Trading Apprentice
Arlington VA
 
Trading Experience: Beginner
Platform: NinjaTrader
Favorite Futures: CL
 
Posts: 11 since Feb 2017
Thanks: 0 given, 2 received


The period is 2/6 - 2/10 (reduced from 1 month) and the contract is CL.

 
 
Elite Member
Gits (Hooglede) Belgium
 
Trading Experience: Master
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Posts: 2,935 since Sep 2013
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How many parameters are you trying to optimize and what is the spectrum of values ?

 
 
Trading Apprentice
Arlington VA
 
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There are 6 parameters. I am not familiar with spectrum of values.

 
 
Elite Member
Gits (Hooglede) Belgium
 
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rleplae's Avatar
 
Posts: 2,935 since Sep 2013
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I'm trying to understand the total number of combinations you ask the system
to figure out. If you create an extreme high number of combinations, that could
cause the system to run out of memory.

Much more likely, might be a memory leak in one of the indicators. A memory
leak is a software error, where the programmer reserves memory and does not
release that memory correctly. While not easy with c#, it could point to one of
the indicators you use.

You could try to reduce the number of indicators and see if all of a sudden the
problem goes away, once you know which indicator it is, you can try to mitigate
the error

 
 
Trading Apprentice
Arlington VA
 
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It totals 20735 iterations. Would fixing a leak require access to the code? This was something I purchased and don't think is accessible?

 
 
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paulrobert View Post
It totals 20735 iterations. Would fixing a leak require access to the code? This was something I purchased and don't think is accessible?

1) first you need to try to located the leak
is it one indicator or a complete suite ?

2) secondly, yes you need to code to fix the leak

 
 
Trading Apprentice
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It's one fully-automated strategy.

 
 
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paulrobert View Post
It's one fully-automated strategy.

who is the vendor ?
of is it custom build for you ?


 



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