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Potential 64 Bit Problem?


Best Regards, Ying Top Log in to post comments Sergey Kostrov Wed, 06/19/2013 - 21:25 Murray, Did you see how the source codes of your test case are re-formatted? gesvd time (ms) =1       max (ms) =1     min (ms) =0     count =15 After R_SVD lasvd time (ms) =17434   max (ms) =4     min (ms) =1     count =8950 gesvd time (ms) =18072   max You might imagine that there's a performance penalty for running such 32-bit programs on a 64-bit operating system, but this isn't true. Top Log in to post comments Sergey Kostrov Thu, 06/20/2013 - 07:16 Hi Murray, Please attach a cpp-file with the source codes. check over here

There are some benchmarks on stackoverflow but i can't find them atm.

August 5, 2014 Straspey I know of at least one popular software - Revo Uninstaller - which includes 64-Bit what is the processor?       Intel Core i7-3770K CPU @ 3.5GHz,  16GB RAM, Windows 7 Professional, Service Pack 1 64-bit Quote:Ying H (Intel) wrote: and a workable test case will be Even if every program you use is still 32-bit, you'll benefit because your operating system itself is running in 64-bit mode. You can only install 64-bit Office 2010 on a sufficiently updated 64-bit Vista, Windows 7, or Windows Server 2008 machine.

32 Bit Vs 64 Bit

I tried to search online but did not find much benchmark against the two. In some cases, programming controls commonly used in the 32-bit world aren't even available in 64-bit. (Details are available in the MSDN Library article on compatibility.) Microsoft now offers conditional compilation You do this in VBA by making API calls using Declare statements.

  • The 64-bit processors are theoretically capable of referencing 2^64 locations in memory, or 16 exabytes, which is more than 4 billion times the number of memory locations 32-bit processors can reference.
  • You can also specify an AliasName argument for the name of the procedure, if desired.
  • The specific example Excel spreadsheets that have LOTS of data, or have many or complex calculations that require much RAM to work.

    August 8, 2014 Lowell Heddings ron007 said: Actually, MS
  • With certain exceptions shown elsewhere in this article, the macros in a document (this also includes workbook and presentations) that have worked by using the 32-bit version of that application will
  • Whether porting a system to a new version of Windows, or starting new development on the OS, it is important to understand which version best suits your needs.
  • Could you please provide some detials information, like 1.
  • It seems quite strange to us that performing the same series of tests within one application run results in such drastic changes in the time required to peform these tests.  We
  • There is a well-known problem regarding SVD.

ActiveX Control and COM Add-in Compatibility Existing 32-bit ActiveX controls, both third-party and Microsoft-supplied, are not compatible with the 64-bit version of Office 2010. VBA Copy #if Win64 then Declare PtrSafe Function MyMathFunc Lib "User32" (ByVal N As LongLong) As LongLong #else Declare Function MyMathFunc Lib "User32" (ByVal N As Long) As Long #end if On the 64-bit version of Microsoft Office, these functions will return a 64-bit LongPtr, which can be passed to Declare statements. This is because HKEY is defined as a pointer, whose size reflects the memory size of the platform that the code is compiled in.In previous versions of VBA, there was no

Let's take the Windows desktop version of Evernote as an example here. Microsoft Office what is the processor? Either of these situations can result in unpredictable behavior or system crashes. Upon running this console program (SVD_Console.exe) we noted that we could NOT reproduce the slow down we see in our custom application.

But most people don't really have a full understanding of what the difference really is. Using Conditional Compilation Attributes The following code is an example of legacy VBA code that needs to be updated. Demanding games are often 64-bit so they can use more than 2 GB of memory. When should I use the 64-bit version of Microsoft Office?

Microsoft Office

Kontakta oss Juridisk information | Sekretess | © National Instruments Corporation. Consider a simple console-based and universal test project ( don't assume that everybody has VS 2012 ) because it could be compiled with any version of Intel or Microsoft C++ compilers. 32 Bit Vs 64 Bit We hope to have this new console program working in the next couple of days and then we can send you example (including all source code and input data files) that This story, "Beware of Office 2010's 64-bit Shortcomings" was originally published by InfoWorld.

exact performance number of slowdown 10. R15 bits 0-31 are set to zeroes unless a 64-bit return value is expected. If you run a big database, or other application that wants to use more than 4GB of RAM, you want a 64 bit version of that application. What they don't say is that MS is one of those vendors who has not bothered to create 64 bit versions of all of their tools.

Do You Really Need More Than 4GB of RAM? One should note that while the problem noted in http://software.intel.com/en-us/forums/topic/401167 was with the same SVD functions, the problem description was much different. Emulated applications running within the Windows on Windows (WOW) 64 layer (discussed in more detail later in this article) will not be able to address any more memory than they could However, sometimes you must communicate directly with the computer’s operating system and other components such as when you manage memory or processes, when working with the user interface such as windows

Community Resources O365 Technical Network MSDN Forums UserVoice Stack Overflow Follow Us Twitter Facebook Office Dev Blog © 2017 Microsoft United States - English Terms of Use Trademarks Privacy Statement © When should I convert Long parameters to LongPtr? The following table provides more information on the new qualifier and data type already discussed as well as another data type, two conversion operators, and three functions.TypeItemDescriptionQualifierPtrSafeIndicates that the Declare statement

Documentation Home > Solaris 64-bit Developer's Guide > Chapter 4 Converting Applications > Tools Support > lint for 32–bit and 64–bit EnvironmentsSolaris 64-bit Developer's GuidePrevious: Implementing Single-Source CodeNext: Guidelines for Converting

The result can be either a bad address and page fault (S0C4) or a bad address and invalid data (loop). GetLAPack64()->ZBDSQR(&UPLO, &NB, &NCVT, &NRU, &NCC, D, E, VT, &LDVT, U, &LDU, C, &LDC, RWORK, &INFO); //if(INFO!=0) error_handler(NUMERICAL_ERROR, "ZBDSQR"); charlen=NB; //f2c_dcopy(&charlen, D, &INCX, S, &INCY); GetLAPackBlas()->DCOPY(&charlen, D, &INCX, S, &INCY); delete[] TAUP; In some cases, they may even perform slower because of the larger pointers as well unrelated OS overhead. Right-click the taskbar and select Task Manager or press Ctrl+Shift+Escape to open it.

I don't really remember what the stated difference was, but it was enough that we chose to keep installing 32bit over 64bit Office for any machine that had 4GB or less The total number of addresses available in the virtual memory – the total amount of data the computer can keep in its working area for applications – is determined by the Top Log in to post comments Murray Shattuck Thu, 06/20/2013 - 14:15 Quote:Ying H (Intel) wrote:1. Subscribe You can track all active APARs for this component.

The Win64 constant is used to test whether code is running as 32-bit or as 64-bit. Evaluating an Engineering System on Windows 7 Windows 7 represents the first viable upgrade from Windows XP for PC users in many ways, especially considering that Vista was largely overlooked due Applications that benefit from being 64-bit are transitioning to 64-bit software. So if you have high-level threads and be sure mkl  will used in 1 thread, then the sequential library should be more suitable.  Best Regards, Ying Top Back to original post Leave

You can still run most ten-year-old 32-bit Windows programs on a 64-bit version of Windows today, even if their developers haven't updated them since 64-bit versions of Windows came along. The fact that a pointer is involved and the size of the types can be useful in finding specific 64-bit problems and avoiding the pre-existing problems between 32-bit and smaller types. APAR status Closed as program error. Get downloadable ebooks for free!

To reap the benefits of a 64-bit operating system such as Windows Vista x64 Edition, you should invest in a large amount of RAM (4 GB or more) and a compatible I'm sure there are a lot of organizations out there that suffer with some similar concerns. Not every application stands to benefit from the x64 architecture, and it will take time for 64-bit editions of Windows to gain widespread adoption, but the following types of applications are Back to Top 5.

For most applications, 64-bit vs. 32-bit doesn't really matter. It failed so badly Microsoft passed on a 64-bit Office 2007.Office 2010 64-bit has all of the hallmarks of a traditional Microsoft "version 2.0" product -- it works, but not like Essentially the console program (SVD_Console.exe) runs SVD_Test, then SVD_Test2, and finally SVD_Test again. This way of linking to MKL allows the majority of our developers to avoid building any of MKL/VLAL dependencies, rather we just connect to it via this custom dll.

Many programs haven't made the leap, and most never will. There's no downside to running those 32-bit programs on a 64-bit OS instead of a 32-bit OS. However, these statements are for 32-bit systems and must be converted to 64-bit by using the information discussed later in this article. The How-To Geek has banished 32-bit operating systems entirely from his house.

The name of the DLL file that contains the procedure being called follows the Lib keyword. Most people don't need an excel spreadsheet that over comes the 32bit limitations. If it's 10%, I don't see that as a real concern, especially since there's going to be some overhead in the WOW32 subsystem.