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  • 32 core (each physical core) 2.2 GhZ or 12 core (6 physical cores) 3.0GHZ?

    - by Tejaswi Rana
    I am working on a multithreaded application (Forex trading app built on C#) and had the client upgrade from the 12 core 3.0GHZ machine (Intel) to a 32 core 2.2 Ghz machine (AMD). The PassMark benchmark results were significantly higher when using multicores doing Integer, Floating and other calculations while for a single core calculation it was a bit slower than the pack (others that were being compared to with similar config as the 12 core one). Oh it also comes with 64 GB RAM (4 times as the other one) and a much faster SSD. So after configuring and running the application on that machine, not only did it not perform as well, it was significantly slower. We're talking about 30seconds - 1 minute slower on an app that usually completes processing within 5-20 secs. The application uses MAX DEGREE of PARALLELISM (TPL) which I've tried setting to number of cores and also half of that. I've also tried running single threaded and without setting any limits in parallel threading. While it may be the hardware has some issues, I am wondering if the CPU processing speed is the issue. I can overclock to 3.0 GHZ. But is that even a good idea? Server Info - AMD http://www.passmark.com/forum/showthread.php?4013-AMD-Dual-6272-performance-is-60-lower-than-benchmarks Seems that benchmark was wrong to start with - officially. Intel i7 3930k OS (same in both) Windows 7 Professional 64-bit

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  • Interface builder hangs.

    - by Tejaswi Yerukalapudi
    I was running IB without any problems when it hanged when I was trying to modify the properties of a tableview. I couldn't get it to forcequit as my whole OS hanged and I had to do a hard reboot. Since then I couldn't get it to run at all, everytime I start it, it just hangs and gives me the option to ForceQuit. I've reinstalled Xcode+IB, but it's still the same. Help? Thanks, Teja

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  • Setting up an SVN repository on a windows server to work with XCode.

    - by Tejaswi Yerukalapudi
    Hi, I need to setup an SVN repository for an iPhone / iPad app that I'm working on. It needs to be setup on a Windows server 2003 instance. We run VSS on it, but it doesn't really work all that well with XCode, so I'd like to migrate ASAP. The problem is, I'm a new graduate and this is the first time I'll be using a souce control software, so any tutorials on how to set one up, configure it to work correctly with Macs using XCode are greatly appreciated! Though it's not a priority, I'd also like to try to get my company to ditch VSS for SVN (Been reading this article yesterday - http://www.codinghorror.com/blog/2006/08/source-control-anything-but-sourcesafe.html). How hard is it to migrate existing builds in VSS into something like SVN? Thanks, Teja

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  • UITextField resignFirstResponder not working?

    - by Tejaswi Yerukalapudi
    I've double checked all the connections in the nib file. My code - // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { self.view.backgroundColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"iphone_bg_login.png"]]; self.title = @"Login screen"; loginTxt = [[UITextField alloc] init]; pwdText = [[UITextField alloc] init]; loginFailedTxt = [[UILabel alloc] init]; loginBtn = [[UIButton alloc] init]; navAppDelegate = (NavAppDelegate *)[[UIApplication sharedApplication] delegate]; navAppDelegate.navController.navigationBarHidden = YES; //NSArray *subVs = (NSArray *) [self.view subviews]; [super viewDidLoad]; } I've used a subclass of UIView (UIControl) and added all the UI elements to it in the Interface builder.The UIControl's touchDown method is connected to backgroundTap method. -(IBAction) backgroundTap:(id) sender { [loginTxt resignFirstResponder]; [pwdText resignFirstResponder]; //[[UIApplication sharedApplication] becomeFirstResponder]; //[sender resignFirstResponder]; } So the keyboard isn't removed like it's supposed to. Not sure why. Thanks for the help! Teja.

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  • Getting data from UITableView

    - by Tejaswi Yerukalapudi
    Hi, I have a few custom UITableViewCells - http://img11.imageshack.us/i/customfacilitiescell.png/ which are added to this UIViewController - http://img189.imageshack.us/i/facilitycontroller.png/ Now, on clicking a button in the controller, I'd like to get the on/off status of all the UISwitches in the controller. Thanks, Teja Edit: I've made a few edits, but I still can't figure out how to do this. My program structure currently - A CustomCell.xib that looks like this - http://img11.imageshack.us/i/customfacilitiescell.png/ A CustomCellController that a subclass of UITableViewCell that has the IBOutlets for the labels and switches from above. Now I have a UIViewController<UITableViewDataSource, UITableViewDelegate> (Say, Screen1Controller) which looks like - http://img189.imageshack.us/i/facilitycontroller.png/ The tableviewcell is being created like this - - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *Id= @"CustomFacilitiesCell"; CustomFacilitiesCellController *cell = (CustomFacilitiesCellController *)[tableView dequeueReusableCellWithIdentifier:Id]; if(cell == nil) { NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"CustomFacilitiesCell" owner:self options:nil]; for (id oneObject in nib) { if([oneObject isKindOfClass:[CustomFacilitiesCellController class]]) cell = (CustomFacilitiesCellController *) oneObject; } } NSUInteger row = [indexPath row]; CustomFacilitiesCellController *rowData = (CustomFacilitiesCellController *)[self.facilities objectAtIndex:row]; cell.facname.text = rowData.facname.text; cell.FacID.text = rowData.FacID.text; cell.facSwitch = [(CustomFacilitiesCellController *)rowData facSwitch]; UISwitch *temp = cell.facSwitch; [(UISwitch *)[cell facSwitch] addTarget:self action:@selector(facSwitchOptionChanged:) forControlEvents:UIControlEventValueChanged]; cell.facSwitch.on = NO; //cell.facSwitch.enabled = FALSE; cell.accessoryType = UITableViewCellAccessoryNone; return cell; } - (IBAction) facSwitchOptionChanged:(id) sender { int i=0; } In particular, my problem is that the facSwitchOptionChanged() isn't getting called. Thanks again for the help, Teja.

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  • Command line FTPS ?

    - by Tejaswi Yerukalapudi
    I need to write a batch file to auto upload a backup every day. I'm restricted to windows, can anyone suggest any free software to do this? I was looking at Filezilla, the command line interface doesn't let you auto upload files and I need to buy a license for CuteFTP. Thanks, Teja

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  • Groupted table view cells not loading.

    - by Tejaswi Yerukalapudi
    Hi, I'm working on creating a grouped table view. The data is being loaded alright, but in the grouped view there are a lot of white empty spaces. They get populated after I scroll up and down a few times. Help? Here's my getCellForRowIndexAtPath method: static NSString *Id= @"CustomDiagChargeID"; CustomCellDiagCharges *cell = (CustomCellDiagCharges *)[tableView dequeueReusableCellWithIdentifier:Id]; if(cell == nil) { NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"CustomCellDiagCharges" owner:self options:nil]; for (id oneObject in nib) { if([oneObject isKindOfClass:[CustomCellDiagCharges class]]) cell = (CustomCellDiagCharges *) oneObject; } } NSUInteger row = [indexPath row]; DiagDetails *rowData = [preferences getDiagElementAt:indexPath.section row:row]; cell.code.text = rowData.ICD9Code; cell.desc.text = rowData.ICD9Desc; return cell; Thanks, Teja.

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  • iPhone auto suggest

    - by Tejaswi Yerukalapudi
    Hi, I'd like to make an autosuggest app that connects to a .NET web service for the iPhone. Any tips on how to do it? Alternatively, would it be a good idea to cache a list of the most frequently used results on the iPhone and access the service if no results are available? Thanks, Teja

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  • Signature control - iPad

    - by Tejaswi Yerukalapudi
    I'm looking to develop a signature control for the iPad. I haven't really done this before, but I think this involves creating an area to draw, the draw itself and the storage. Any tips on how to get started will be great! I'm also looking at using a stylus to create a signature. Are there any styluses that are specifically built for the iPad? The normal ones don't seem to work..\ Thanks, Teja

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  • ASIHTTPRequest - HTTPS

    - by Tejaswi Yerukalapudi
    Does ASIHTTPRequest support HTTPS connections? My connection right now works for a HTTP connection and errors if I try a HTTPS Connection. (Goes into requestFailed and gives me a ASIHTTPErrorRequestDomain) -(void) getPatientsList { av.hidden = NO; [av startAnimating]; NSString *urlString = [IP stringByAppendingString:@"Method1"]; NSURL *url = [NSURL URLWithString:urlString]; ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url]; NSLog(@"URL = %@",url); [request setRequestMethod:@"POST"]; [request setPostValue:@"val1" forKey:@"key1"]; [request setPostValue:@"val2" forKey:@"key2"]; [request setDelegate:self]; [request startAsynchronous]; } - (void)requestFinished:(ASIHTTPRequest *)request { // Use when fetching text data //NSString *responseString = [request responseString]; // Use when fetching binary data NSData *responseData = [request responseData]; [self parsePatients:responseData]; [av stopAnimating]; av.hidden = YES; } - (void)requestFailed:(ASIHTTPRequest *)request { NSError *error = [request error]; [av stopAnimating]; av.hidden = YES; } Thanks, Teja

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  • Appstore approval - Using activation codes.

    - by Tejaswi Yerukalapudi
    Hi, I'm in the process of building an app related to healthcare IT. My company wants to be able to distribute it through the appstore, but only if a device identified by the UDID of is specifically provisioned in the database. I've got all that built, but I was wondering if Apple might reject something like this. Has anyone had any experience with activation codes? Thanks, Teja.

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  • Invalid argument exception - Navigation bar, tab bar, UIView.

    - by Tejaswi Yerukalapudi
    Class 1 has the following code that generates the exception - -(IBAction) searchAllAction: (id) sender { AddDiagSearchController *search = [[AddDiagSearchController alloc] initWithNibName:@"DiagSearch" bundle:nil]; [self.navigationController pushViewController:search animated:YES]; } the pushViewController part generates the following exception - 2010-04-14 14:03:31.060 Nav[10314:207] *** -[UIView addTarget:action:forControlEvents:]: unrecognized selector sent to instance 0x3956a80 And the class I'm trying to push has the following code. All the connections for IBOutlets were made through the interface builder. It's has a tableView, search text bar and a tabbar at the bottom and I'll be adding this to a UINavigationController. @interface AddDiagSearchController : UIViewController <UITableViewDataSource, UITableViewDelegate>{ UIBarButtonItem *quickAdd; UIBarButtonItem *searchAll; UITextField *searchTxt; } @property (nonatomic, retain) IBOutlet UITextField *searchTxt; -(IBAction) searchAllClicked:(id) sender; -(IBAction) quickAddClicked:(id) sender; -(IBAction) searchBtnClicked; -(IBAction) resignResponder: (id) sender; @end

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  • kXML (XmlPullParser) not hitting END_TAG

    - by Tejaswi Yerukalapudi
    Hello all, I'm trying to figure out a way to rewrite some of my XML parsing code. I'm currently working with kXML2 and here's my code - byte[] xmlByteArray; try { xmlByteArray = inputByteArray; ByteArrayInputStream xmlStream = new ByteArrayInputStream(xmlByteArray); InputStreamReader xmlReader = new InputStreamReader(xmlStream); KXmlParser parser = new KXmlParser(); parser.setInput(xmlReader); parser.nextTag(); while(true) { int eventType = parser.next(); String tag = parser.getName(); if(eventType == XmlPullParser.START_TAG) { System.out.println("****************** STARTING TAG "+tag+"******************"); if(tag == null || tag.equalsIgnoreCase("")) { continue; } else if(tag.equalsIgnoreCase("Category")) { // Gets the name of the category. String attribValue = parser.getAttributeValue(0); } } if(eventType == XmlPullParser.END_TAG) { System.out.println("****************** ENDING TAG "+tag+"******************"); } else if(eventType == XmlPullParser.END_DOCUMENT) { break; } } catch(Exception ex) { } My input XML is as follows - <root xmlns:sql="urn:schemas-microsoft-com:xml-sql" xmlns=""> <Category name="xyz"> <elmt1>value1</elmt1> <elmt2>value2</elmt2> </Category> <Category name="abc"> <elmt1>value1</elmt1> <elmt2>value2</elmt2> </Category> <Category name="def"> <elmt1>value1</elmt1> <elmt2>value2</elmt2> </Category> My problem briefly is, I'm expecting it to hit XmlPullParser.END_TAG when it encounters a closing xml tag. It does hit the XmlPullParser.START_TAG but it just seems to skip / ignore all the END_TAGs. Is this how is it's supposed to work? Or am I missing something? Any help is much appreciated, Teja.

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  • ASP.NET webservice API security.

    - by Tejaswi Yerukalapudi
    Hi, I have an iPhone app accessing an ASP.NET Webservice for data. Since I'm building both the ASP.NET end and the iPhone part of the app, and we'll shortly be publishing it in the Appstore, I'd like to know what security checks I need to make. The basic flow of the program (without divulging too much info about it) is as follows - . Login (Enter Username, pass on the app) . Primary screen where the data is loaded from a webservice and presented . And post data back after a few updates by the user I'm using POST to send the data to the Webservice via HTTPS. I'm sanitizing the inputs, checking for length of the inputs, but that's the limit of my knowledge as far as security goes. Any other tips are greatly appreciated! Edit: I should probably add that our service needs to be subscribed to separately and the iPhone component of it cannot be used alone. So the average user will not have login credentials. And the app itself has healthcare data in it, so I'd rather not have anyone trying attacks from my login page. Thanks, Teja.

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  • Blackberry app stuck trying to access a server.

    - by Tejaswi Yerukalapudi
    Hi, I've built a ASP.NET webservice and I'm trying to access it from a Blackberry. I've been testing it out with multiple devices and the simulator and it works fine, but there's just the one Blackberry 9000 (It's not the model, I've tried it out with another Blackberry 9000), and it's stuck waiting for a response from the server. Relevant section of the code that accesses this - System.out.println("IN ntwk access thread, start point"); HttpConnection connection = (HttpConnection)Connector.open(serviceURL + WSNAME); connection.setRequestMethod(HttpConnection.POST); connection.setRequestProperty("Content-type", "application/x-www-form-urlencoded"); connection.setRequestProperty("Content-length", Integer.toString(postData1.length)); OutputStream requestOutput = connection.openOutputStream(); requestOutput.write(postData1); requestOutput.close(); final int responseCode = connection.getResponseCode(); if(responseCode!= HttpConnection.HTTP_OK) { //Process the error condition } // Request succeeded process the data. It seems to be getting stuck after connection.getResponseCode(). Is there some way I can verify what's going wrong with this particular device? Thanks, Teja

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  • UISwitch quick toggle multiple times.

    - by Tejaswi Yerukalapudi
    I was playing around my app and I was toggling a UISwitch really fast (who can resist?). So, I toggled it really fast for 10-15 times, an array that should contain the data from the table view cell that I have my switch in either has extra copies of the same cell sometimes, just one copy (the correct case) a few times and no data in it at all some times. The app works fine if it's toggled at normal speed. I'm pretty sure this scenario won't really happen with my users, but I'm still curious as to why it's happening. Thanks, Teja

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  • NSMutableArray in appdelegate - EXEC_BAD_ACCESS

    - by Tejaswi Yerukalapudi
    Hi, I'm trying to use a global array in the appdelegate as a quick fix for a demo I'm building. The relevant code for this .h file has the declaration { NSMutableArray *trnEntered; } @property (nonatomic, retain) NSMutableArray *trnEntered .m file has the following code - trnEntered = [[NSMutableArray alloc] init]; NSLog(@"%@",[trnEntered count]); // prints null. [trnEntered addObject:@"1"]; NSLog(@"%@",[trnEntered count]); // exec bad access. Not sure where I'm going wrong here. Looks fairly straight forward. Thanks for the help in advance, Teja.

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  • ASP.NET 2.0 + Firefox/Safari - UI Issues?

    - by Tejaswi Yerukalapudi
    I'm developing on a system that was originally developed five years ago. I don't have access to the complete source code of the system, but it is completely driven by XML and runs on ASP.NET 2.0. This was originally written for IE6, but since Microsoft has officially decided to dump it, we moved to IE7. Some javascript is added on the client side, but nothing that changes the UI has been done. (We had to integrate a credit card reader into the system) This code is accessed primarily on tablet PCs running windows, but I'd like to persuade my company to use the iPad. [The tablet somehow costs around 3k$. I think selling a 3000$ device to a client when you have the iPad for 500$ is ridiculous.] Now, my problem is if we open it in any other browser (Tested it on safari / firefox), the UI is completely messed up with elements completely out of place. Doesn't ASP.NET generate HTML that runs on any browser? My second question is if there are any credit card readers available in the market that integrate with the iPad. I don't really care about the software part as it's taken care by our company, I just need it to read the card details and post it to the server. Thanks, Teja.

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