Parallelized for loop progress bar
I have a for that takes a long time to execute and enabled parallelism to speed things up. I also want a progress bar. Before enabling parallelism, I simple had an indicator wired to the iteration counter and the array size that is being processed. This gave a good percent complete indicator. With the for loop parallelized, the indicator bounces around depending on which instance of the for loop happens to update the indicator. Is there a way to have an indicator inside a parallelized for loop?
Solved!
Go to Solution.
altenbach wrote:
A better idea is probably a simple action engine that increments with each call, incrementing an integer in a feedback node, and returns the total count. Since it is not reentrant, it will be shared by all loop instances.
Here's a very quick draft. See if it works for you. (Warning, only use it in one FOR loop overall).
Probably needs a few tweaks....
LabVIEW Champion . Do more with less code and in less time .
Attachments:
ParallelProgress.zip 14 KB
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[svn:fx-trunk] 8086: ASDoc updates for download progress bars
Revision: 8086
Author: [email protected]
Date: 2009-06-23 07:22:19 -0700 (Tue, 23 Jun 2009)
Log Message:
ASDoc updates for download progress bars
QE Notes: None
Doc Notes: None
Bugs: -
Checkintests - passed
Modified Paths:
flex/sdk/trunk/frameworks/projects/framework/src/mx/preloaders/DownloadProgressBar.as
flex/sdk/trunk/frameworks/projects/framework/src/mx/preloaders/SparkDownloadProgressBar.a s -
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-- for photoshop scripting solutions of all sorts contact: [email protected] -
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> Is there any way of creating a progress bar showing the status of a
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>
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CIT Engineering Netherlands
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\x8A\x13>\x84\x82\x84\xEBQ\x84\xF0a\f\\\u00F8\b\x06+\xDC\x80\x01\n\x1F\xC5\xA0\x84\x8Fa \xC2\xC7qs\x1F\r\x0EcL\xA6c\xF2\x88\xFE\x07WG@D",
bkg: [232,232,232],
tmpFile: function FN(/*?str*/s)
FN.file && FN.file.remove();
FN.file = null;
if( !s ) return null;
return FN.file = (function(fx)
fx = new File(''+fx);
if( !fx.open("w") ) return null;
fx.encoding = 'BINARY';
fx.write(s);
fx.close();
return fx;
})(Folder.temp+'/_'+(+new Date)+'.swf');
// Creates the UI
var rc = SB.rc,
w = new Window( 'dialog', '', undefined, {borderless:true} ),
p = w.add( 'panel' ),
fl = p.add( 'flashplayer', undefined, rc.tmpFile(rc.swf) ),
t = p.add( 'statictext', undefined, msg),
r;
rc.tmpFile(); // kills the tmp swf file
// UI Skin/Style
with( w.graphics )
backgroundColor = newBrush(
BrushType.SOLID_COLOR,
[rc.bkg[0]/255, rc.bkg[1]/255, rc.bkg[2]/255, 1 ]
p.orientation ='row';
p.alignChildren = ['left','center'];
fl.preferredSize = [50,50];
// Fire!
SB.win = w;
w.onActivate = function(){ process(); w.close(-1); };
r = -1==w.show();
// Cleanup and return
SB.win = null;
w.onActivate = null;
rc = w = p = fl = t = null;
return r; // true=>OK, false=>broken
// SAMPLE CODE
var myHugeLoop = function()
var i = 500000;
while( i-- )
// you have to periodically call SpinProgressBar.win.update()
// but not necessary at each iteration
SpinProgressBar.win.update();
Math.cos(i)*
Math.cos(i)*
Math.cos(i)*
Math.cos(i)*
Math.cos(i)*
Math.cos(i)*
Math.cos(i)*
Math.cos(i)*
Math.cos(i)*
Math.cos(i);
if( SpinProgressBar("Currently processing a huge loop...", myHugeLoop) )
alert( "All is fine." );
else
alert( "The process has been broken by the user!" );
@+
Marc -
Progress Bar is not working in Labview 6i
Hi all,
i implemented one vi with Progress bar using labiview 6i. i created property node for the progress bar to set the range as 550 using scale >Range>maximum. progress bar is updating well until the value of 220. later the progress bar is starting from begining. What is the maximum range we can define for the Progress bar.? please see the attached picture . Am i missing anything from the figure?
thanks,
kalpana
Attachments:
Progress Bar.png 60 KBHi kalpu,
as your "slide" is of datatype U8 it will not display values greater than 255…
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome -
How can I use a progress bar in objective c mac
How can I use a progress bar in objective c mac? I have a code that downloads a file and I want to be able to let the progress bar increase by 1. A bit further on the code (to download the file) it needs to increase again. And so on...
My code
-(IBAction) downloadButtonPressed:(id)sender;{
//get the path to the image that we're going to download
NSURL *url = [NSURL URLWithString:@"https://www.dropbox.com/s/l6o07m48npxknt4/Cluedo.zip?dl=1"];
//get the path to documents folder where we're going to save our image
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *DocumentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [DocumentsDirectory stringByAppendingPathComponent:@"Cluedo.zip"];
//Download the file to memory
NSData *data = [NSData dataWithContentsOfURL:url];
NSError *error = nil;
//Save it on the Documents directory
[data writeToFile:filePath options:NSDataWritingAtomic error:&error];
NSFileManager* fm = [NSFileManager defaultManager];
NSString* zipPath = filePath;
NSString* targetFolder = @"/Applications"; //this it the parent folder
//where your zip's content
//goes to (must exist)
//create a new empty folder (unzipping will fail if any
//of the payload files already exist at the target location)
[fm createDirectoryAtPath:targetFolder withIntermediateDirectories:NO
attributes:nil error:NULL];
//now create a unzip-task
NSArray *arguments = [NSArray arrayWithObject:zipPath];
NSTask *unzipTask = [[NSTask alloc] init];
[unzipTask setLaunchPath:@"/usr/bin/unzip"];
[unzipTask setCurrentDirectoryPath:targetFolder];
[unzipTask setArguments:arguments];
[unzipTask launch];
//[unzipTask waitUntilExit]; //remove this to start the task concurrentlyYour code really isn't suitable for a progress bar, not a real one anyway. Your code will spend about 99.9% of its time in the method "dataWithContentsOfURL:url". That is not a method you want to use in the real world. It is only for demos or proof of concept exercises. All network operations should be asynchronous. That gives you the ability to gracefully recover when there is a failure and also to do fancy things like display a progress bar and tell the user when the download is complete.
Once you get the asynchronous download logic working, then you can worry about the progress bar. The first thing you will need is the size of the file. Without that, all you can ever do is an indeterminate progress bar or spinner. If you have the size of the file, then you can keep track of how much of the file you have downloaded and update your progress bar with the percentage complete. Make sure to throttle it to no more than incrementing by 1% at a time. Otherwise, a large file or a file transferred in many small chunks, would waste too much time updating the progress bar for no change. -
Hi,
I have written a cell renderer for a progress bar but I can't set its string or make it indeterminate. Has anybody done this before? Should I write my own, or use JProgressBar (currently using JProgressBar).
any help would be brilliantHere is a little example I made which shows the JProgressBar being updated.
Everytime a row is clicked the progress bar adds one percent
import javax.swing.*;
import javax.swing.table.*;
import java.awt.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
public class TableProgress extends JFrame{
public TableProgress(){
super("Table Progress");
setSize(500,115);
Container theContainer = getContentPane();
String[] headers = {"Name", "Percent Complete", "Progress"};
Object[][] data = {
{"John Adams","50",createBar(50, "50%")},
{"Ben Franklin","75",createBar(75, "75%")},
{"Karl Marx","0",createBar(0, "0%")},
{"Gandalf","20",createBar(20, "20%")},
{"Clint Eastwood","55",createBar(55, "55%")}
final JTable theTable = new JTable(data, headers);
theTable.setPreferredSize(new Dimension(500,100));
theTable.getColumn("Progress").setCellRenderer(new ProgRenderer());
ListSelectionModel rowSM = theTable.getSelectionModel();
rowSM.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
//Ignore extra messages.
if (e.getValueIsAdjusting()) return;
ListSelectionModel lsm =
(ListSelectionModel)e.getSource();
if (lsm.isSelectionEmpty()) {
} else {
int selectedRow = lsm.getMinSelectionIndex();
JProgressBar theBar = (JProgressBar)theTable.getValueAt(selectedRow, 2);
theBar.setValue(theBar.getValue()+1);
theBar.setString(String.valueOf(theBar.getValue()));
System.out.println(selectedRow);
theContainer.add(theTable);
setVisible(true);
show();
public JProgressBar createBar(int percentDone, String text){
JProgressBar progressBar = new JProgressBar(0, 100);
progressBar.setStringPainted(true);
progressBar.setValue(percentDone);
progressBar.setString(text);
return progressBar;
private class ProgRenderer implements TableCellRenderer{
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column){
return (JProgressBar)value;
public static void main(String[] args){
TableProgress theTable = new TableProgress();
} -
Progress bar in forms procedure
Dear
i want to use the progress bar in one of my processing form the problem is that my processing button use 6 procedures example
Update_Week_WIse_Location(:Week_Code); -- Database Procedure;
SIngle_field; -- forms procedure
Cumm_field_cust_wIse; -- forms procedure
CumMingled_field; -- forms procedure
Insert_local_customer_For_exch; -- forms procedure
Insert_nonexIst_sp; -- forms procedure
now i could not know which procedure take how much time i and the whole process takes little time i want to add the progress bar so the user
feel easy that the process is running not stuck
can anybody tell me the whole code for the progress bar
early reply will be appreciatble
Thanks
JunaidHello,
Did you simply enter "progress bar" in the search box ? You will find tens of answers.
Francois -
Need to use progress bar in my application
hello friends,
Actually i m using jsp filedownload and I am gettting my file in byte array and need to implement a progress bar while downloading file (as IE showing in status bar downloading file size ..% of total file size)...no fake progress bars and no stop gap solutions as like a gif moving with sign "plz wait ..file is downloading "
plz help how to get this done
My code
HashMap result = (HashMap)request.getAttribute("requestParams");
String type = request.getParameter("type");
boolean isFile = false;
if(result != null){
String successFlag = (String) result.get("");
String sFileName = null;
byte[] bFile = null;
String sContentType = null;
if(successFlag != null && successFlag.equals("true")){
for(int i=0;i<result.size();i++){
sFileName = (String) result.get("FILENAME");
bFile = (byte[]) result.get("FILEDATA");
sContentType = (String) result.get("CONTENTTYPE");
response.reset();
if(null!=bFile) {
if(bFile.length>0){
if(sContentType == null || sContentType.equals("")){
response.setContentType( "application/octet-stream" );
else response.setContentType(sContentType);
response.setHeader("Accept-Ranges", "bytes");
isFile = true;
response.setHeader("Content-Length", Integer.toString(bFile.length, 10));
if(null!=sFileName){
if("view".equals(type)){
if(null!=sFileName)response.setHeader("Content-Disposition","inline; filename=\""+sFileName+"\"");
else{
response.setHeader("Content-Disposition","attachment; filename=\""+sFileName+"\"");
ServletOutputStream outs = response.getOutputStream();
if(null!=bFile)outs.write(bFile);
outs.flush();
outs.close();
out.clear();
out = pageContext.pushBody();
}You should get your keyboard fixed. There's a lot of letters missing from what you type and it makes it very hard for other people to read. It looks extremely inelegant.
Anyway, your JSP isn't in control of the download. (You shouldn't have all that Java code in a JSP either but that's a separate issue.) All it does is to send the data to the browser, which is in charge of the download. And in all the browsers I use, there's a box which tells you how far the download has proceeded. No real need for a progress bar, even if you could persuade the browser to make one. Which you can't. -
Anyway to smooth out a progress bar?
I'm using a Timer with an event to update data on a page. I'm also using a progress bar to indicate the next update (every 30 seconds). Currently I'm using a manual progress bar with setProgress() to increase the value by 1 (max value 30) every second to match the 30 second Timer. This works fine from a functionality standpoint, but I don't like how the intervals on the progress bar jump in chunks to the next value instead of smoothly progressing to the next value. Basically the progress bar shows 30 "jumps" instead of smoothly filling in. I have been looking through documentation as best as I can to find any type of transition or smoothing renderer, but no luck.
I'm using Flash Builder 4 if that helps with suggestions.
thanksThanks, your comment just cleared up my thinking a bit. My timer was set to Timer(1000, 30), making it 30 counts. I adjusted it to Timer(100, 300), making it 300 jumps, which is much less noticeable for the progress bar's size.
-
How can i use Progress bar in IR Report
Hi ,
I have created IR Report based on the View so, it's been taking 10-15 mins of time to execute the IR Report. Here user want to see the Progress bar while executing the IR Report. How can i use Progress bar in IR Report.
Anybody have idea on Progress bar please help me.
Regards
Narender BHi ,
Thanks for your information.
I am new to the APEX.*i need to show Progress bar while opening the each page* then user can know some process is happening from the backside and i don't know where i need to add and call the below function.could you please provide the steps for the progress bar.
In my application there are almost 100 pages are there so, i need to show progress bar on each page while opening .could you please provide Global function to call on each page.
function html_url_Progress(pThis){
$x_Show('AjaxLoading');
window.setTimeout('$s("AjaxLoading",$x("AjaxLoading").innerHTML)', 100);
//doSubmit('APPLY_CHANGES');
redirect(pUrl);
Regards
Narender B
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