Improved speed for the LabVIEW MathScript calculation

I use a MathScript node to perform calculations on a sbRIO FPGA module and the speed of these calculations is critical.  What are some ways to improve the speed of calculations and y at - it a faster way to make calculations of MathScript matrix?  If I belong the MathScript in a Subvi it will improve the speed of calculations?

Thanks for any ideas

Please look at the VI attached. She is your original code ".m", my changes to your ".m" and G code equivalent to the updated code ".m". First, let me describe the numbers that I've seen on a cRIO 9012 for each of the three approaches.

I ran to each of the three approaches for the hundreds of iterations, ignored the first 30 iterations to allow allocations of memory (which caused a huge spike in runtime performance about the RT), then took the average operation time for each iteration of the loop for the remaining iterations

Original M: 485 msec/iteration

Updated M: 276 MS/iteration

G: ms 166/iteration

The changes I made to your code ".m" are:

(1) added; at the end of each line to remove output (used for debugging)

(2) left random code generation - used whitenoise (seems like that is what you did)

(3) turn on the type of data highlighting the function. Noticed that the majority of data was cast in the complex, although that did not seem like you need the complex domain. The source has been function sqrt. Changed using real (sqrt (...))

This improvement in performance by more than 40%. I believe that more can be pressed if you follow the documentation - MathScript wrote for real-time Applications.

Then I took the MathScript you and equivalent written G leaving the algorithm as it is. This gave us the improvement of the performance of another 40 per cent in the G. updated the it is a known issue that on slow controllers, MathScript adds a penalty of 2 x to g equivalent. We are investigating this issue and may be able to fix it in a future release.

If you are profiling the G code, you will notice that most of the time we spend in the multiplication of matrices. Unless rethink you your algorithm, I doubt that this can further improve.

Let me know if you have any questions

Kind regards

Rishi Gosalia

Tags: NI Products

Similar Questions

  • Requirements for the Labview 8.6 run-time engine

    Hello

    are there system requirements for the LabVIEW 8.6 run-time engine? for example, same system requirements for LabVIEW 8.6? Internet Explorer 5 is perfect? or Internet Explorer version 6.0 or later is good? It works for Firefox on a Linux Athena mechine?

    Thank you

    Cynitha

    The system requirements can be found in the Release Notes. Pages 2 and 3 indicate the specific requirements for the Run-Time Engine by platform.

  • Fan noisy and slow speed for the Macbook Air with 10.11.4

    I hope you can help me.

    I upgraded 10.11.4 on my Macbook Air a couple of days. It is a model of 2013 Mid, 1.7 Ghz Core i7, 8 GB of RAM.

    I don't know exactly what my last update was - but was El Capitan any.

    I tried LANDAU and SMC resets.

    Previously, she has chugged along fine. The fan was quiet most of the time - only hit on when I used Lightroom.

    Now, the fan kicks on regularly, most of the time actually. And it's MUCH slower. Very lag sometimes when you type in Wordpress, for example. And lightroom is much slower. Also, when I use FaceTime, video often turns itself on and off--with a message informing me that it will resume when the computer cools down. Yet the back of the computer does feel not hot at all.

    I tried page of Chrome in Safari. Doesn't seem to help much.

    I am currently traveling to the Peru and did not my hard drive with my last backup, Time Machine, by hand, so as I understand it, I can't go back to a previous update.

    The Kernal task often seems to have a very high CPU %: 250 or.

    Right now, I'm trying to download the Combo, I read that this can sometimes fix glitches.

    Any help is greatly appreciated!

    The kernel uses excessive CPU cycles. Here are a few possible causes for the State. Some may not apply to you.

    FileVault

    Please, open the security and privacy pane in system preferences and click the FileVault tab. If there is an indication that the encryption or decryption is in progress, wait (possibly several hours) so he can finish and see if there is an improvement.

    Limitation of the

    When he does readings of high temperature in the material, or a MacBook battery low voltage readings, the kernel can try to compensate by interrupting the processor to slow them down and reduce energy consumption. This condition may be due to:

    ☞ an accumulation of dust on the logic board

    High ambient temperature ☞

    ☞ a defective battery or worn in a laptop

    ☞ the malfunction of a cooling fan, temperature probe, a probe or some other component voltage internal

    Note that if the problem is caused by a sensor, there can be no real overheating or undervoltage.

    If the computer is portable, try with and without the power adapter connected. If pigs kernel_task processor only on current alternative, load is causing the machine to heat up. This behavior may be normal for some models, but it can also be an indication of a hardware failure.

    Apple diagnostics or the Apple Hardware Test, although not very reliable, is sometimes able to detect a fault. For more in-depth material test, an appointment of 'Genius' to an Apple Store, or go to an other authorized service provider.

    If all goes well with the material, then everything that you can do to improve the cooling can help.

    Software installed

    The software installed by the user which includes a device driver or other kernel code can thrash of the kernel. This category includes virtualization, such as Parallels and VMware software, as well as products 'anti-virus' more commercial. Some system monitoring applications, like "iStat", may also contribute to the problem. You can test this possibility to completely disable or remove the software according to the instructions of the developer or start in safe mode. However, it should be noted that the deactivation of a modification of the system without removing or test in safe mode is not as easy as you think.

    Corrupt NVRAM or MSC data

    Sometimes, the problem is cleared up by resetting NVRAM memory or MSC.

    External display

    Connect an external display to some models of MacBook Pro while the lid is open can cause this problem. If necessary, use the external clamshell modescreen.

    Other devices

    Disconnect devices wired everything except those needed at startup and remove all the expansion cards of third parties (if your model.) If the problem is resolved, reconnecting devices one by one by one until you identify the culprit.

  • Fingerprint memory for the LabVIEW 7.1 development system

    Hello

    I would like to know the size memory for LabVIEW 7.1 full development System.Both during the installtion and to develop applications later.

    If anyone can help. Thank you.

    There is no one answer for this, as this varies considerably.

    For what is on the disk, if my memory serves, the 7.x base takes a few hundred MB, but which could greatly inflate according to the modules and drivers you add.

    For the RAM, I believe than 7.0 used to identify approximately 20-50 MB immediately after loading, but this number then would also change a lot over time depending on what you are doing. Loading, editing and execution of code just regularly change the amount of RAM used.

    Why do you ask? Also, are you aware that 7.1 is relatively old now (came out 7 years ago)?

  • What are the requirements of the system for the labview runtime engine 2011

    Hello

    I'm looking for (ideally 2011 release) LabVIEW runtime engine requirements. The only information I can find a few States what operating systems it supports. I am eager to check the specifications of a target (Touch Panel computer - probably running Windows XP Embedded), to allow this execution. More precisely the amount of non-volatile storage system required - because we will need to specify a CompactFlash card. Clearly the application exe take little space like XPe will, but I'm eager to know the needs of the TENS.

    Andy

    Not sure about flash complact...  I can't remember seeing it in the relase notes, but follow the link below for the Manual:

    It should support the touch screen (I don't remember if you still need an additional plugin for this... I'll check).

    http://www.NI.com/PDF/manuals/371778g.PDF

    Look at page 2, the middle column

    or below the basic requirements:

  • Pavilion 23-B010: improved speed of the pc

    I am wanting to improve the speed of my pc. If I upgrade the RAM and graphics card, that will definitely improve the speed or I'm wasting time and money? I assumed that the 1st question would upgrade 'I can' my RAM and graphics.

    Memory (RAM) installed - 6,00 GB (5.58 GB usable)

    Graph - processor - AMD E2 - 1800 APU with graphics HD Radeon (TM) 1.70 GHz

    Thanks for any comment on this.

    Denver1003

    Unfortunately, the information on the motherboard of your PC indicates that, although there can be no slot PCIe, it does not accept a graphics card because the graph is actually built into the AMD processor.

    And since you already have 6 GB memory DDR3-1600, examant who don't will not yield any performance gain.

    Sorry - but you have what you have.

  • speed for the Internet, I would like to know how can I do my interent faster

    I would like to know how can I do my interent faster

    Monday, October 15, 2012 22:11:02 + 0000, GencTaherbogoli wrote:

    I would like to know how can I do my interent faster

    How fast is (rub the test here: http://www.speedtest.net/)? What
    type of internet connection you have? Dial-up? Cable? DSL?
    Something else?

    What speed your ISP promise? Get you that speed or is
    It is significantly slower? If it is very slow, you may be able to
    improve it. But if that's what the ISP says it should be, you can't do
    It's any faster unless you buy a faster service.

    Ken Blake, Microsoft MVP

  • Adobe Reader - The rate of speed for the 'voice', Can be adjusted?

    Hello

    I want to make the 'voice' of Adobe Reader, read more slowly for me when he reads a .pdf file. Is this possible, and if so, how to adjust voice speed in Adobe Reader?

    Thank you! J.

    Hi UMA_Jen,

    Please follow the below mentioned steps to regulate the flow of speech and volume according to your requirement

    1. Open Adobe Reader
    2. Click Edit > Preferences
    3. Select read under category (see attached screenshot) left side
    4. Set the option

    Let me know if you have any other question

    Kind regards

    ~ Dominique

  • What is the right speed for the new memory?


    Febausa, here's the information you need to order the correct crucialmemory.  Read all the information on the page.  It will tell you everything you need to know.

  • HP 40GS stuck on the hourglass for the calculation of certain integrals

    So I used my calculator HP40GS for awhile, and I've never had problems with it.

    Recently, when reviewing for the examination of calculation AP, I noticed that the calculator could not do some integrals. Because I already went through the lesson using the graphing calculator calculators and integrals without problem using my computer, I don't think that there is nothing special about this one.

    One of the integrals in question is 3 * e ^(-x/2) * sin (2 x) on the interval [0,2].

    I tried to make the home screen capture (in the mode of operation):

    ∫ (0,2,ABS (3rd ^(-x/2) * sin (2 x)), x)

    The calculator has been blocked at least five minutes on the same screen with the little hourglass until I pressed on 'on' to force her to leave.

    Also, I tried to do this in CASE mode, using the manual view. This also does not work.

    Other calculators in the classroom (TI-83) did the integral almost immediately.

    My memory is not yet close to being complete.

    Is there something I could do or check to solve the problem? Other integrals seem to be more or less fine.

    Thank you!

    When you do digital integrals, some of them may take some time. On the 40gs and many other units of HP, the accuracy of the correction is what distinguishes the accuracy of assessment. Try to set the precision of DIFFICULTY 4 in the homescreen of modes and re-evaluate. I suspect that he will return very quickly. That should mean "exact to 4 decimal places.

    You can also try to do exactly in the CASE and then to assess the result. In many cases, it may be faster.

  • Module LabVIEW MathScript RT x 64

    Hello everyone

    I tried to find the labview MathScript RT Module x 64 tooklit, but it is just for x 86.

    my version of labview is 2014 x 64.

    How can I install the MathScript RT Module for x 64.

    Y at - it all tooklit MathScript RT Module for x 64?

    LabVIEW MathScript RT Module Readme 2014:
    (Windows) MathScript RT Module runs on the Windows 32-bit operating systems.
    (OS X) MathScript RT Module runs on 32 - bit OS X operating systems.
    (Linux) MathScript RT Module runs on Linux 32-bit and 64-bit operating systems.

    LabVIEW MathScript RT Module Readme 2016:
    The LabVIEW platform support does not include the MathScript RT Module (64-bit). To install the MathScript RT Module (64-bit), visit ni.com/frinfo and enter the Info Code lvmsdownload to download the software. You can also ask the media 2016 LabVIEW (64-bit), which includes limited support for 64-bit modules and toolkits, from the Web site of NOR.

    So, if your operating system is linux I think that you can install by using the statement to:
    http://digital.NI.com/public.nsf/allkb/677EF84850E6635286257CE80036AF0C

    If I think that in 2016 version of windows, you can get here:
    http://www.NI.com/download/LabVIEW-MathScript-RT-module-2016/6164/en/

  • features of vBundle/speed for physical host computers

    I was wondering if a cartridge is available, or if someone is using vFoglight for host computers physical montior and are you able to generate reports, dashboards, etc., with the same level of detail as you can get with vFoglight with vBundle and/or speed available with their views, etc.?

    You can use the OS cartridges or the new cartridge of the Infrastructure (depending on which version of vFoglight you are on) to monitor the physical host computers. I do not have readily available additional similar 1-vBundle-speed for the Physicla guests.

    Concerning

  • Change a lengths of moving animation speed for?

    Hello

    Here's what I'm trying to...

    I have a few long even sharpen (30,0000 x 2000 pixels) images and need to pan over them, to be returned to a movie. I want the movie to be about 120 seconds and pause at specific points distributed unevenly in the image.

    So I put a length of model more than 120 seconds... say 240 seconds.

    I Zoom (scale) and set a keyframe for starting position.  Then I move up to the mark of 120 seconds and add a keyframe to end. So now, I have a continuous pot of more than 120 seconds.

    Now, I come back and find the points where I need to stop the movement. I add a keyframe and toggle Hold. Move to the bottom of the timeline for how long to wait, and then insert another keyframe to make things happen again. Then repeat.

    OK, I have all the movements and hold appropriate frameworks. However, given that the reinforcement of waiting are not evenly distributed over the original yet, the movements occur at different speeds. I want to anyway. I understand that this could do some segments of animation, take a longer or shorter time, but this isn't a problem.  Obviously a speed must be selected... so I suppose looking at graphs of speed for the current moves and see that one section looks good to say 200 pixels per second.

    Is it possible to get this speed applied to animation completely the position? I know that all keyframes will move in the timeline...

    I tried different Roving keyframes and speed assistants but failed to get the effect I'm after.

    If anyone actually understand what I am trying to explain... I would really appreciate a kick in the right direction!  Maybe I'm in the wrong direction altogether!

    Thanks in advance

    Lee

    Lee Faulkner says:

    Hello

    Here's what I'm trying to...

    I have a few long even sharpen (30,0000 x 2000 pixels) images and need to pan over them, to be returned to a movie. I want the movie to be about 120 seconds and pause at specific points distributed unevenly in the image.

    You could certainly do that with an expression without too much trouble, but by far the easiest way would be to before you compose your animation and then double the length of the model, activate the time remap, and then set keyframes where you want to pause the movement.

    Move the CTI to the second keyframe in the timeline panel. Now you take all keyframes, but the first and let them slide to the bottom of the timeline for the duration that you want to suspend the movement. If you want a pause of 2 seconds you would move all keyframes but the first in the chronology of 2 seconds. Now, you select the second keyframe, copy it and then without moving the ICT you paste. Your animation will now move at its original speed then pause for 2 seconds and return to the original speed. Then, you repeat the process by lowering ICT the chronology in the place depending on whether you want to hold the film (now the third keyframe) in seizing all keyframes but the first 3 and pushing down the timeline of 2 seconds, by selecting only the 3rd keyframe and stick to the position of the ITC. Repeat until you are finished, then select all the keyframes and Press f9 to facilitate their inside and out and you'll get exactly what you want.

    You can see a movie screen cap of the process by clicking on the link. I tried points and it didn't work.

  • For the SLOW loop: can you suggest anything to improve the speed?

    I have a vi that is EXTREMELY SLOW. The part which slows down this drug is the piece that I put in the attachment.

    What I do is the following: I select the elements of a variable X (which may be a 1 d or 2D array), when a condition on another variable is implemented (upper and lower limits).

    I think that it is a memory problem. The tables are more or less 200000 items. Thousands of first 30000 are dealt with reasonably fast, but then it becomes slower and slower and slower (after 30 minutes still works, and it's a problem, because I use this several times, vi changing upper limits and lower, the value of the data to be processed, etc...).

    I ask you, if you have an idea on how to solve such a problem, if you can suggest me something to improve speed.

    I use LV 2012 on a machine with Vista.

    Thank you

    Ah, right. I misread it as he wanted the same limits for all the berries, and compel the 3 paintings by 100 k items took me 6 ms.

    Here's an alternative that's taking me 5ms.

    / Yamaeda

  • Suggestions for the MathScript Interactive window

    Hello world

    I just discovered LabView MathScript. It was a nice surprise as I am

    a used Matlab enthusiast. The interactive window is a great idea, however

    I miss a view things:

    (1) syntax Higlighting in the window "Script." It works in the MathScript node

    but for some strange reason, not in the interactive window.

    (2) line numbers in the "Script" window

    (3) the "F9" of Matlab function. If you mark a piece of code in Matlab and

    Press "F9" code is executed. Very useful for debugging.

    I just hope that someone from the MathScript developers is reading this.

    Thank you

    Ulf

    Hello

    Yes, we read we appreciate suggestions.  Numbers of syntax and the syntax line are features we know and we hope to add in a future version.  I was not aware of the F9 function, but we will consider it as well.

    Grant M.
    Staff software engineer | LabVIEW Math & Signal Processing | National Instruments

Maybe you are looking for

  • lost my iphone6s

    I lost my phone for a week. I want to search my iphone 6 s, 64GB,. my phone details are as follows: IMEI number: *. Serial number: F4 * RXY Reference No..  MKQC2LL/A NO. ICCID *. What should I do to track my phone? Kindly help me. < personal informat

  • Manually uninstall the labview

    OK, so here is another thread to add between the sea of other uninstall problems.  I tried to find a similar problem, but I don't anything that could help me.  As a warning, its ok to laugh at this one. This thread starts also similar to others.  I m

  • Query of the Windows security shield icon...

    Hi my name is Michelle Maria... windows security shield icon should be at the bottom right of the screen even when everything is turned on? for example: firewall, automatic updates and protection against viruses... Thank you very much... Michelle Mar

  • Why my computer won't play any sort of media?

    iTunes and Windows Media player do not work, nor does Youtube. My computer freezes just upward when I try to play videos on the internet, videos and music from my hard drive.

  • Dark LaserJet CP1025nw print

    I have a new colourlaser LaserJet CP1025nw. problem is much too dark impression and that's why the cartridges run out too fast, especially the black one. I try to color changes in the settings of the driver, but these changes isn't any effection. I h