best practice - considering multiple strategy instances

[dadarara]

is there a best practice rules in writing the strategy with consideration that it will be running simultaneously with different stock ?
I have a strategy that sometimes (not always) fails to execute some commands in case it runs more than on 2-3 stocks at the same time .

[NinjaTrader_ChrisL]

Hi dadarara, thanks for posting.

Strategy instances are independent of each other. The best way to find out what a strategy is doing is to use Prints throughout OnBarUpdate to see if its reaching its conditions or not e.g.

if(<condition to trade>)
{
Print("Condition Reached " + Time[0]);
}

More documentation here:

https://ninjatrader.com/support/helpGuides/nt8/?debugging_your_ninjascript_cod.htm

Kind regards,
-ChrisL

[dadarara]

Thanks Chris
I have multitude of Print commands , this doesn't help.
because for example I see the print that notify me that the order was sent ( the code has submit the order) but I dont see any order active. the OnOrderUpdate is not triggered at all.
what I mean is that I dont experience a particular problem in logic of the strategy. if I run it as one instance on one stock, it works great no issues.
but if I run it on two different stocks than the problems start .
I am not very experienced programmer, so I was thinking in the direction of variables declaration , private public functions etc..
and thats why I asked if there are some specific rules that I need to follow in case that I want to run the same strategy several times simultaneously.

[NinjaTrader_ChrisL]

Hi dadarara,

First, turn on TraceOrders = true; within State.SetDefaults and monitor the output window for any ignored orders. Running the strategy on two different instruments at the same time should not cause any issue, and a position on one instrument would not cause an order on a different instrument to be ignored. Please send me your log and trace files to scriptingsupport at ninjatrader.com as well:

You can do this by going to the Control Center-> Help-> Email Support

Ensuring 'Log and Trace Files' is checked will include these files. This is checked by default.

Please reference the following ticket number in the body of the email: 3219584 Attn ChrisL