Gary Rubin

QUOTE(Dan Bookwalter @ Dec 28 2007, 03:12 PM) You can also used the Windows character map to find the symbol (it's in the Symbols font), copy it to the clipboard, then paste it into LabVIEW.

QUOTE(Falevoz Y. @ Dec 28 2007, 12:29 PM) http://lavag.org/old_files/monthly_12_2007/post-4344-1198863394.gif' target="_blank"> The library calls are to kernel32.dll. The function names are the labels of the library calls. Labview will remain in high priority as long as it is open. I have not tried this with built executables, but presume it should work the same. Microsoft's MSDN webpage will give you the values for normal and above-normal priority.

QUOTE(Falevoz Y. @ Dec 28 2007, 07:56 AM) The VI priority refers to the priority of the thread within Labview in which that VI is executed. The Windows priority refers to the priority within the Windows tasks with which Labview is executed. One word of caution - if your CPU usage is pegged at 100% and you've set Labview to high priority, your ability to move/minimize windows can be limited.

QUOTE(AdamRofer @ Dec 26 2007, 07:45 PM) We've had good luck with this.

QUOTE(Kevin P @ Dec 21 2007, 10:49 AM) I agree 100%. I never really adopted waveforms because, when they came out, I thought of everything other than the data array as "overhead" that I didn't really need or want. Gary

QUOTE(Gustavo Fernandes @ Dec 19 2007, 01:25 PM) I don't know if this still holds true for Labview 8x, but in Labview 7.1, there's something called a Matlab Script (under the Analyze > mathematics> formula) tools palette. This is different from Mathscript. Mathscript, as I understand it, has Labview compiling and executing M code (or at least a subset of it). The Matlab Script launches an instance of matlab, much as I would assume you're trying to do with activex.

QUOTE(Gustavo Fernandes @ Dec 18 2007, 08:10 AM) Does the Matlab Script structure still exist in LV8.20? Why not use this?

Did this snapshot preview thing go away sometime in the past couple weeks, or is it just me? Gary

QUOTE(neB @ Oct 18 2007, 10:29 AM) I should have said "To what does this refer", not "What does this refer to". QUOTE(neB @ Oct 18 2007, 10:29 AM) When you call NI and ask for help, they need to know your name to figure who you are and if you get support etc. Once the operator finds you they can transfer you to support or whatever. If you ask them what your contact ID# is and record it, the next tim eyou call you can just give them your ID# and there is no question about who you are. Old-timers will have an ID# that ends in the letter "L" for legacy. Ah, I see. So that means that 5M individual users have requested tech support since that system was started?

QUOTE(neB @ Oct 18 2007, 10:14 AM) Ben, Just about every part of that statement is over my head. What does that refer to? (yeah, yeah, split infinitive - my wife is the English major, not me...) Gary

QUOTE(eaolson @ Oct 18 2007, 12:35 AM) I think you may be comparing apples and oranges a bit here. I don't have much experience with those other languages, but I would consider LabVIEW to be a higher-level language than C, etc. If you look at the function palette, I see the stuff in the red box as pretty much your "basic" programming capability. The other stuff, especially the Analyze section, is what you're getting for your extra $k. http://lavag.org/old_files/monthly_10_2007/post-4344-1192713314.gif' target="_blank"> A better comparison might be to other high-level technical languages, such as Matlab or IDL. With those languages, as with LabVIEW, you are paying for more than just a compiler and a basic command set; you are also paying for 1) a considerable library of specialized functions that you don't have to write yourself, and 2) the fact that you don't have to define all your variables and can add a float to an integer and get the right answer. Now, maybe 1) is the point of the request for LabVIEW light? If someone doesn't need to do all that mathematical stuff, it would be nice to choose to not pay for that part. Incidentally, I was in a Matlab training class yesterday. One of the introduction slides claimed that Matlab is used by more than 1E6 users in over 130 countries. I don't know LabVIEW's numbers, but I would suspect that they are smaller. As a comparison point, a single-user Matlab license is $1900. I think the difference is that Matlab is in schools. Sorry for this meandering message. I use LabVIEW as a general purpose language for performing "technical computing", and I guess that's where the identity crisis comes in: When we're talking about making LV more mainstream, are we talking about more mainstream within the programming world, or more mainstream within the technical computing world? Gary

QUOTE(PJM_labview @ Sep 20 2007, 02:28 PM) Hmmm, that does seem odd - maybe a difference in memory speed between the single-core and dual-core systems?

QUOTE(PJM_labview @ Sep 20 2007, 11:54 AM) This sounds indicative of non-parallel dataflow. What you described sounds like each core is spending half its time waiting for the other to finish. If you do not see total CPU usage over 50%, then you are not actually doing anything in parallel and would not expect any better performance than a single core.

QUOTE(eaolson @ Sep 19 2007, 05:41 PM) I think the answer is "yes" to both. It depends on how parallel your processing is. You usually can see some increase in performance just by dropping it onto a multicore system, but you might be able to do much better by being careful with your threading and taking advantage of some of the thread priority settings.

QUOTE(crelf @ Sep 18 2007, 10:52 PM) You too can be the proud owner of a $15k beer tap! :laugh:

Does anyone have any experience with EasyDaq hardware? Thanks, Gary

QUOTE(Michael_Aivaliotis @ Sep 9 2007, 07:48 PM) Michael, Thanks for the work on the site, as always. Here's one of the glitches: View New Posts just brings me to a search window. Thanks, Gary

QUOTE(Val Brown @ Sep 7 2007, 08:18 PM) I have seen something that sounds similar to this on WinXP and LV7.1. I have some pretty CPU-intensive processing going on, pulling data from a file, with large preallocated arrays feeding 2D intensity plots that are updated every N iterations of the processing loop. What I found was that if I clicked and held on the "window minimize" button in the upper right corner of the front panel, it appeared that the processing would be sped up dramatically. I assumed that clicking and holding on that minimize button forced Windows to maintain focus on the processes associated with the window, therefore speeding things up. My processing loop was set to run as fast as possible. If yours is waiting on external events, then we might be seeing similar things. Yours is manifested by the processes finishing faster and therefore spending more time waiting, while mine was manifested as faster execution time. Does that sound reasonable? I don't know about Vista, but I've recently been playing with Windows priorities in WinXP. You might try that and see what happens?

QUOTE(Ben @ Aug 31 2007, 10:47 AM) That's interesting; I had been aware of the word jumbling, but not the orientation issues. It's really fascinating how the brain works. My http://en.wikipedia.org/wiki/Sue_Rubin' target="_blank">sister is severely autistic, and it's really amazing to see what aspects of her brain seem to function normally vs. which parts don't... Gary

QUOTE(Ben @ Aug 31 2007, 09:29 AM) If you read the wikipedia entry on handedness, there are some interesting theories about how handedness is related to language development. Maybe that goes along with the dyslexia thing? I don't know enough about dyslexia or neurology to know if dyslexia and language are related...

Austrialian diplomatic mistranslations

QUOTE(Aristos Queue @ Aug 28 2007, 09:29 PM) Good to know. Thanks!

QUOTE(george seifert @ Aug 28 2007, 10:45 AM) Sorry...

QUOTE(Ben @ Aug 28 2007, 10:26 AM) Which leads to another question/pet peeve... Why does LabVIEW clear the undo buffer when a VI is saved? Just because I saved something doesn't mean I don't want to go back to what I had before the save.

QUOTE(Ben @ Aug 28 2007, 09:44 AM) I hate ctrl-t. I especially hate that it's next to the ctrl-R, so it inadvertently gets hit sometimes and I have to resize my windows again. While I'm ranting about my fat-fingering, I wish ctrl-E and ctrl-W weren't next to each other...