Memory issues with optimisation

[zphinx]

Hello,

Ninja seems to run out of memory when I'm trying to optimise a strategy.

I'm optimising 3 different variables in steps of 2
for example

2:40:2
5:75:2
1:19:2

saving the top 7000 results so further analysis can be conducted in excel.

Ninja's estimated time is ~35 mins, and 25 min into it, Ninja fall over with a big red cross in the optimisation screen, saying it has detected a problem and has to shut down - then an "out of memory" screen popup occurs..

any suggestions as I'm running a dual core 2gig memory as its a hassle trying to go through every combo manually.

Thanks for your help

cheers,
Leonie

[Elliott Wave]

I don't know for sure but I believe NT6.5 is not optimized for multi-core and leaves a lot to be desired in the area of memory management.

I believe this is a known issue and reserve judgement until NT7 sees the light of day in the near future...

[NinjaTrader_Jason]

NinjaTrader 6.5 does not support multi-core processors; this will be supported in NinjaTrader 7.

You would need to reduce the memory/resource request of NinjaTrader by reducing the optimization request.

In addition, you can find a link with performance tips to reduce memory/resource request of NinjaTrader below.

http://www.ninjatrader-support.com/HelpGuideV6/PerformanceTips1.html

[zphinx]

Thanks Jason,

I reduced the parameters by 50% (3000 results) and reducing the steps and Ninja struggled but got a result. Unfortunately it crashed again when I asked it to complete another step. So I think I might have to close the program and re-start.
The trace file mentioned the bounds are outside the array..

[NinjaTrader_JoshP]

Closing Strategy Analyzer and reopening may be useful too. That maybe enough to invoke the .NET garbage collector to clean out the resources.

[zphinx]

Thanks Josh,

I'll try that first