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Ninja Hanging Again!!!
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Created: by moneypenny Attachments:1

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Ninja Hanging Again!!!

  #1 (permalink)
Elite Member
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Ninja Hanging Again!!!

Ahhhhhhh

NT was hanging and freezing on my old computer - bought a Falcon beast of a trading computer with the latest i7 turbo boost to 4.0 gHz.
NT still hanging!!!!!!!!!!!! I know NT is single-threaded but if this is happening on a 4.0 gHz how can so many people be using it with no problems?
Anyone else experience this?
moneypenny

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  #2 (permalink)
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moneypenny View Post
Ahhhhhhh

NT was hanging and freezing on my old computer - bought a Falcon beast of a trading computer with the latest i7 turbo boost to 4.0 gHz.
NT still hanging!!!!!!!!!!!! I know NT is single-threaded but if this is happening on a 4.0 gHz how can so many people be using it with no problems?
Anyone else experience this?
moneypenny

Call NT customer service, or post on their forum, they have quick response.

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  #3 (permalink)
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moneypenny View Post
Ahhhhhhh

NT was hanging and freezing on my old computer - bought a Falcon beast of a trading computer with the latest i7 turbo boost to 4.0 gHz.
NT still hanging!!!!!!!!!!!! I know NT is single-threaded but if this is happening on a 4.0 gHz how can so many people be using it with no problems?
Anyone else experience this?
moneypenny

Computer horsepower will make no difference if you have a badly coded script running. 99% of the time NinjaTrader freezes is due to bad code. Please follow up with our support team as they can help narrow down and isolate the issue.

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  #4 (permalink)
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NinjaTrader View Post
Computer horsepower will make no difference if you have a badly coded script running. 99% of the time NinjaTrader freezes is due to bad code. Please follow up with our support team as they can help narrow down and isolate the issue.

I agree with Ray, I have two different environments. One where I use fully debugged and stable Ninjascript (very little outside code) and one which I play with different code. As you can guess, the 2nd computer freezes frequently. This is one of the biggest strengths of NT, but be careful of who's code you load on your machine as it may have problems.

I am not sure how easy it would be for NT to keep exposing the level of NinjaScript to the community but yet prevent programming errors by people customizing the code. You could see maybe adding a Watch Dog timer, but I would want to be able to disable that feature as I have some scripts that will look like they hang for hours as they are doing Machine Learning cycles millions of times. I would not want NT to dump this thread!

Nil per os
-NJAMC [Generic Programmer]

LOM WIKI: NT-Local-Order-Manager-LOM-Guide
Artificial Bee Colony Optimization
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  #5 (permalink)
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That was it!!!

Oh how I love Big Mike and his forum!! This has been a huge problem for years!!
I removed a new 3rd party indicator and the problem was solved.
Thank you, thank you, thank you!!
moneypenny

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  #6 (permalink)
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moneypenny View Post
Oh how I love Big Mike and his forum!! This has been a huge problem for years!!
I removed a new 3rd party indicator and the problem was solved.
Thank you, thank you, thank you!!
moneypenny

Please name the indicator, so others can check their configs for the same.

Mike

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  #7 (permalink)
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Indicator that was causing NT to freeze.

Hi all,
The indicator that was causing the freezing/hanging with Ninja Trader is attached below.
moneypenny

Attached Files
Register to download File Type: cs ZigZagUTC.cs (35.6 KB, 6 views)
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  #8 (permalink)
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UTC ZigZag Indicator

Classic example of clueless, sloppy programming, with inline function calls of the MIN and MAX indicators on every tick. Predefined reusable instances should be used and code rewritten so that they only need to be called on FirstTickOfBar.

However another, even worse problem is extensive use of Draw methods, (DrawText, DrawLine etc) which is much more resource intensive than using the Plot method to put things on the screen. The Draw methods are a huge resource hog.

In case you were wondering, I have no intention of fixing it unless somebody gives me a real good reason to do so.

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  #9 (permalink)
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Programming Do's and Don'ts?

Hi all,
Zondor thank you for pointing out the coding mistakes made on the above indicator.
I have a suggestion - if it doesn't exist already, why don't we make forum on futures.io (formerly BMT) that listed the basic coding do's and don'ts for each platform - a kind of checklist for each platform?

Just an idea,
moneypenny

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  #10 (permalink)
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moneypenny View Post
Hi all,
The indicator that was causing the freezing/hanging with Ninja Trader is attached below.
moneypenny

You might try @Fat Tails anaZigZag. I'm sure it's written better than the ZigZagUTC.

I found a link to it, here:

https://futures.io/ninjatrader/21094-zigzag-indi-dynamically-adjusts-volatility.html#post232918

After all, it's what you learn AFTER you know it all, that counts!

Last edited by TheWizard; August 1st, 2014 at 04:24 PM.
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