Grampa_of_Oliva_n_Eden

Sound like the old DOS days when we had to unload the first half of the program before we could run the the second. Ben

After verify the target machines ACL and otheer VI server stuff is correct in the ini used on the target then check the port used for TCP and verify the firewasll has that port open. That is all that comes to mind off hand. Ben

i believe in old versions, the deallocate would try to deallocate. In recent vesions, the VI hierachy has to go idle. That is why I mentioned the dynamic loading case since they will go idel when they finish. I have busted through the 2Gig limit. There is a switch for XP to make the OS aware of the extra memory. That message is saying there was not a large enough block of contiguous memory when requested. I got around that by only using a bunch of small buffers. One possilbe contruct would be to use an array of queue refs with only a sinlge element in each queue. As long as the OS can finf a slot big enough for the queue element it should work. Ben

As I understand it... It can be used for those dynamically loaded number crunching memory pig plug-ins. When you load one of thos monster I can allocate a lot of memory and as long as it is resident, the memory stays allocated. By using the "request dealloc..." at the tail end of the plug-ins run, it can try to give ack what was allocated before it was run. There were other uses in the old days but gradually they have been down graded (don't work as well as it used to do). I think there as also a "Lazydeallocation" switch but I don't remeber if that was something aded or taken away. Ben

On an purely intelectual level, I could follow that line of reasoning right up until I think of my Father and my brother. I would have to toss a lot of memories to get MH to fit into my brain without conflict. I am firming up on a couple of ideas from reading and thinking and those ideas are not off much from of the stuff I read coming from Plato. Its seems we accept that there is a difference between what is percieved to be a hero what actually is a hero. Looking to the points in MH, there are two things we can look for, the motivation of the act and the results of the act. Since few of us can "search hearts" we have no true insight into a person's motivation (for some of us, we may not recognize what our motivations actaully are) and are limited to evaluate observable actions and results. I don't have a point to make, so I'll go find some real work to do now. Ben

I am thinking outloud myself and thank you for listening in. Discalimer: I do not concider myself a hero. I have to question the staement about Nobody acts. I was sitting in a park eat lunch (babe watching) when I witnesed a purse snatching. About six blocks latter I found myself asking the question "Hmmm, I wonder if this is a good idea?" Others caught him and tackled him to the ground and I just went back to work. I realize that we can ague either side of my motivation but i tell the story now because it was an example where time did not permit being thoughtful and action was taken and only latter concidered. Megae-dittos on the proverbs quote! Ben

I recently finished reding Atlas Shrugged and I have to admit that it played a factor in me asking this question and has me questioning myself )Am I doing a Hank Reardon or should I John Galt?). I set teh fire fighter example to the side since there are too many "but what ifs" that go with those stories and turn the attntion back on LV. Are those that contribute to the "Greater Good" of the LV community by developing and sharing CR code heroes? Simialry those that post LV-Wikis etc? Does the answer change if the code or articles are latter found to be faulty or lacking ? Still doing some soul searching, and greatly appreciate your comments and thoughts. Ben

I can't find that reference either so please forget what I said until I can prove it. Re:messages I have re-use that lets me quickly compose messages that clearly detail how my code was bieing mi-sued and what they need to do to fix it and why they should not be knocking on my cubilce and complaining. The only time that has failed me is when a developer failed to include my code in the build. Ben Ben

I think Greg McKaskles explanation from the "Clear as Mud" thread on the dark-side explains the hit about not wiring the input under the section where he talks about the default value having to be supplied when not wired. I generally look at the code for obvious errors that could occur either by mis-use by others (or myself) or what would be the follow-up effect, of the code not working and how difficult it would be to diagnose an error based on the error cluster info. For code that touches a lot of stuff for the first time, I will use nest error cluster so that I can clearly diagnose a file I/O error from the DAQ error that could result from a bad config (a file error) or the hardware is shut-off. In the early days of UNIX there was no error recovery or logging built into the OS. The philosophy was "well fix the hardware then start the OS." That left a bad mark on me so know I "drop bread crumbs" in my code so that I can nail issue if the they come up. But not all of my code is wrapped in error clusters. Number crunching, bit banging etc... I appreciate the report about the performance being about the same between through wire vs not. even if there was a performance hit that could be meassured, I'd still use error clusters for all but the most demanding performance situations. Anybody can drive a car 100 MPH, but to do it safely is another story. I once posted here about the "extra inputs" on the icon connector actually incurring a performance hit that could be measured under the right conditions. Even after learning that fact, I still include extra connectors on the icon, to mkae my life easier, even if ther may never be a need. Take care, Ben

Before I take that away as a fixed point... Should i understand that heroism is not a part of a "person's character"? Ben

A related observation about popular media, heros and engineers In disaster movies like Mad Max and many others, the protaganist often has to rescue someone from the bad guys. The people they have to rescue are often the heroin or the mad scientist (engineer). So rather than being the hero they are saved by the hero. Ben

Is heroism determined by the results of taking that actions or the intent when deciding to take the action or something else? Ben

I am still curious to hear more about what you feel makes a hero a hero and how or if an engineer or scientist can achieve that status. But on a somewhat related idea... I have often mentioned to my buddies "Anyone can casue a problem, but for a disaster, there as to be an engineer." Ben

On that last point. I suspect that very little of LV graphics can take advantage of the accelerator on high-end graphics cards. The New 3D picture may be the exception. I am getting good response from it and have not totally ruled out (yet) including the 3D graphics as a realtime update. So if the app is using the 3D picture, a good graphics card may pay off. Ben

I'd like to add an outlandish statement re: the UI thread. THe UI thread is over-used. It is now ime for NI to seriously consider getting all GUI updates out of the UI thread so that they can happen in parallel. It was a clever move when first implemented but the time has come to fix the UI Bottleneck. Ben

In parenthesis, you ruled out code changes, So I offered a suggestion that did not require code changes. How can it help? I have code that renders the CAT scan we often see as a gif of a human head (looks like Hova's vatar) as 3D image. It let me turn that gif around so I could see the guy's face. On my old laptop, it would take about an hour to render the image in 3D. On my new laptop it only takes about 15 minutes to udate the screen if i watch the updates but if I minimize the screen and watch the CPU (windows task manager) I can see that the update will complete in about two minutes. So... It did not require code changes It did increase the renering speed. If you lifted the "no code change" restiction, I suggest defer FP updates, hide the widget, update the widget, show the widget undefer updates. BTW: Using Defer FP update when trying to update a chart on a tab control results in no update as of LV 2009. Ben

I can optimize code or deploy to more than one CPU so Virtual address space is the limit I hit most often. Even the Bus speed can be worked-around by designng hte app to run on more than on machine (devide and conquer). UI thread is single threaded. Accelerated graphics really made a big difference in my 3D graphing speed. Even the old 3D graph (that only used a single code to render the graphics) got much quicker when I used my new top of the line laptop. You last question is rather limiting but ... Hiding the FP of a LV app realy can speed up a screen update. Ben

In the US media we often hear the term "Hero" applied to people that find themselves in a situation where they do their job as expected, Fire fighters, police, doctors and the like. When interviewed they dismiss the heroic nature and simple claim to be doing their job. There are others that go beyond "doing their job" and put themselves in harms way fully knowing that harm can or will come to them. The story of the Fire Fighter at Chernobel (sp?) that drove up to the fire and continued to fight it single handed while vomiting and eventually passing out from the radiation. So the operators now working the issues at the reactors in Japan... Are they heroes or just doing their job? Ben

Very cool! [OT] Have you done or heard of anyone analyzing trends based on the market in terms of the current gold price? I ask because I have often wondered what the trends would look like after being transformed to the "Gold Space". I have concidered writing the code myself but it never bubbles to the top of my ToDo list. Just curious, Ben

Another option for the PXI platform I failed tommentio last night is "SCRAMNet" from Curtiss-Wright implements shared memory between machines. Data transfers are blazing fast. I have adapted them for use in LV but they were originally develoed for C. If redundancy serves any purpose in your app then concider SCRAMNet. Not only are the transfers fast but with the right hardware you can configure multple redundant paths with slef healing etc. Ben

Neville covered it quite well. Clocking options are very robust on PXI. Disclaimer, I am a LV guy... You may be able to run your app on one of those USB-DAQ widgets that have RT a cRIO built-in to handle odd ball low jitter requirements. Ben