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  • Installing SQL Server 2008 on Windows 7 64-bit

    - by harriyott
    I'm having a shocking time trying to install SQL Server 2008 on 64-bit Windows 7. When I run setup.exe, I get the following error message: Microsoft .NET Framework 3.5 installation has failed. SQL Server 2008 Setup requires .NET Framework 3.5 to be installed Things I've tried: I've checked and double checked. I do have .NET Framework 3.5 installed, with SP1 I've read about a missing Windows Installer 4.5 installation producing the same error. Win7 comes with Windows Installer 5, which hopefully satisfies this requirement, as I've tried to install 4.5 and it won't let me Burning the ISO to DVD and installing from there. Installing on an XP machine using the same ISO. This works, so the ISO must be fine. Considering SQL Server 2005, but it really needs to be 2008 for the project. Update Creating a slipstream version gives the same error Update I could install SQL Server Express, and then SP1, but couldn't upgrade to Enterprise. If you've come across this issue, or know how to fix it, I'd love to know.

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  • Skype can not find libssl.so.10 on 64-bit Fedora Linux

    - by itpastorn
    Skype will not start: $ skype & skype: error while loading shared libraries: libssl.so.10: wrong ELF class: ELFCLASS64 $ ldd /usr/bin/skype |grep ssl libssl.so.10 => not found OK, missing libssl. Where is it? $ ls -l /usr/lib/libssl.so* lrwxrwxrwx. 1 root root ... /usr/lib/libsssl.so -> libcrypto.so.1.0.1e lrwxrwxrwx. 1 root root ... /usr/lib/libssl.so.10 -> libssl.so.6 -rwxr-xr-x. 1 root root ... /usr/lib/libssl.so.1.0.1e lrwxrwxrwx. 1 root root ... /usr/lib/libssl.so.6 -> /usr/lib64/libssl.so.10 OK, it points to libssl.so.6 which in turns points to the 64-bit version. $ ls -l /usr/lib64/libssl.so* lrwxrwxrwx. 1 root root ... /usr/lib64/libssl.so.10 -> libssl.so.1.0.1e -rwxr-xr-x. 1 root root ... /usr/lib64/libssl.so.1.0.1e lrwxrwxrwx. 1 root root ... /usr/lib64/libssl.so.6 -> /usr/lib64/libssl.so.10 So, why is my linkchain not picked up by Skype? (Identical problem exists with libcrypto, BTW).

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  • Strange behavior in networking between 64bit and 32bit

    - by Rob
    I'm having a strange behavior about my network setup. I have 2 laptops, one (Lenovo) with Windows 7 Professional 64-bit and another (Acer) with Windows 7 Ultimate 32-bit and a wireless router. I'm connecting these 2 using the router but with a strange behavior. I can ping both machines, as well as the router, but when i try to access their shared folders (\\computer_name\shared_folder) the connection starts to fail and I need to reboot both machines to get it working again. But this only happens sometimes, sometimes it works.

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  • Logitech QuickCam Pro 9000 & Windows 7 64-bit failing miserably

    - by Saxtus
    I am trying to install a Logitech QuickCam Pro 9000 webcam to Windows 7 64-bit. If I do it without using the Logitech drivers but instead the Windows Update ones, the camera works with low frame rate and without face tracking and all other bells and whistles that it's full driver provides. The moment I install the latest official Logitech driver, the problems begin: Camera works fine, until I decide to go to audio settings of the LWS panel or Windows'. Then LWS freezes and with it everything that tries to output audio. I am not able to open Playback/Recording devices window (it just doesn't appear) and system gets unstable and slow with LWS.EXE process not been able to close forcefully. If I reboot and forget the camera connected, this situation continues and system gets unstable from the beginning. If I reboot without the camera connected, everything works fine until I connect it and try to do something with audio settings of Windows or LWS panel. I should note, that until the freezing occurs, camera works as expected, with full frame rate, face tracking and everything that is expected to do. The soundcard is the ASUS SupremeFX II of the ASUS Striker II Extreme motherboard. Any ideas of what is causing this or what else to try so I can make it work as advertised? Thank you.

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  • Windows-7 Ultimate 64 bit wont connect to my wired/wireless networks

    - by A302
    Windows 7 Ultimate 64 bit. Everything was working fine & then just stopped working. The nic card Realtek PCIe GBE Family Controller is enabled but does not connect to my router (cables & router ports are good). Wireless Atheros AR5007EG is enabled but the connection is limited (encryption type / key have been verified). A laptop running XP can connect both wired / wireless. SSID is not being broadcast, connect to network if it is not broadcasting is checked. Have checked services.msc for Bonjour & did not see it listed. Network & sharing center does not list any active networks. Device manager lists both devices as functioning properly. Router configuration has not been changed. Virus scan has not found anything. I would like to fix this rather than using Acronis to do a system restore. Thanks in advance for any advice offered in solving this. 26 Jan, the nic card & wireless are working using PCLinux OS Live CD. It appears that the problem is Windows 7 related.

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  • BlueScreens on my ThinkPad with Windows 7 64 Bit and a SSD (CRITICAL_OBJECT_TERMINATION, ntoskernel.exe)

    - by pvorb
    I'm getting BlueScreens about every five days for more than three months. Here's an example: A problem has been detected and Windows has been shut down to prevent damage to your computer. The problem seems to be caused by the following file: ntoskrnl.exe CRITICAL_OBJECT_TERMINATION If this is the first time you've seen this stop error screen, restart your computer. If this screen appears again, follow these steps: Check to make sure any new hardware or software is properly installed. If this is a new installation, ask your hardware or software manufacturer for any Windows updates you might need. If problems continue, disable or remove any newly installed hardware or software. Disable BIOS memory options such as caching or shadowing. If you need to use safe mode to remove or disable components, restart your computer, press F8 to select Advanced Startup Options, and then select Safe Mode. Technical Information: *** STOP: 0x000000f4 (0x0000000000000003, 0xfffffa80065f2b30, 0xfffffa80065f2e10, 0xfffff80002f9bf40) *** ntoskrnl.exe - Address 0xfffff80002c98d00 base at 0xfffff80002c19000 DateStamp 0x4d9fdd5b It's has always been the same BlueScreen message showing CRITICAL_OBJECT_TERMINATION, 0x000000f4, and ntoskrnl.exe. Of course the addresses change. My computer is a ThinkPad T400 (about 2 years old) with a SSD in it. I'm also running Windows 7 Professional 64 bit. When I bought my computer, it had a 250GByte SeaGate HDD in it, which I replaced by a 500GByte HDD by Western Digital. Last september I bought a Corsair F120 SSD and replaced the HDD by this SSD. Then I bought a LEICKE HDD adapter for the UltraBay II where I plugged in my 500GByte HDD. This configuration ran about half a year without any errors. After re-installing Windows this spring, I am getting regular BlueScreens. Sometimes my system runs for about 2 weeks without a BSOD, sometimes I get several BlueScreens a day. The only thing that I noticed is, that I'm always running Google Chrome when it happens. Is there anyone who has made his/her own bad experiences whith some of my components or is there anybody who can tell me if it would be helpful to send my notebook to Lenovo? Thank you very much for your help on my issue! Regards, Paul

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  • shutdown.exe on Win Server2k3 64-bit cannot be found

    - by normalocity
    Server 2003 SP2 64-bit Verified my path settings are correct, as I can run other executables within the "system32" folder without issue. If I cd to "c:\windows\system32\" folder, and try to run "shutdown /?" I get "shutdown is not recognized as a valid..." you know - the message you get when you type a command that doesn't exist. Doing a "dir *.exe" inside the "system32" folder, also doesn't return "shutdown.exe" as one of the results. HOWEVER - if I go through Windows Explorer - there it is! I can see shutdown.exe. Also, if I go to "Start - Run" and type "shutdown /?", it works fine. So, works in the GUI, not on the command line. very strange. This is an excerpt of the last portion of "dir *.exe" when run on the "system32" folder. Note the lack of commonly used executables such as "shutdown.exe" and "tsadmin.exe" 02/18/2007 07:00 AM 24,064 route.exe 02/18/2007 07:00 AM 29,184 routemon.exe 02/18/2007 07:00 AM 14,848 rsh.exe 02/18/2007 07:00 AM 67,072 rsopprov.exe 02/18/2007 07:00 AM 77,824 rtcshare.exe 02/18/2007 07:00 AM 18,432 runas.exe 02/18/2007 07:00 AM 34,816 rundll32.exe 02/18/2007 07:00 AM 18,432 runonce.exe 02/18/2007 07:00 AM 13,312 savedump.exe 03/19/2009 07:51 PM 49,152 sc.exe 02/18/2007 07:00 AM 90,112 scardsvr.exe 02/18/2007 07:00 AM 152,064 schtasks.exe 02/18/2007 07:00 AM 16,384 schupgr.exe 02/18/2007 07:00 AM 31,232 sdbinst.exe 02/18/2007 07:00 AM 36,352 secedit.exe 02/18/2007 07:00 AM 32,768 sethc.exe 06/28/2006 12:12 AM 31,232 SetLACState.exe 02/18/2007 07:00 AM 41,472 setup.exe 02/18/2007 07:00 AM 25,088 setup16.exe 02/18/2007 07:00 AM 20,480 setupn.exe 02/18/2007 07:00 AM 60,416 setx.exe 02/18/2007 07:00 AM 10,752 sfc.exe 02/18/2007 07:00 AM 76,288 sfmprint.exe 02/18/2007 07:00 AM 11,776 sfmpsexe.exe 02/18/2007 07:00 AM 65,024 sfmsvc.exe 02/18/2007 07:00 AM 38,400 shmgrate.exe 02/18/2007 07:00 AM 71,168 sigverif.exe 02/18/2007 07:00 AM 26,112 skeys.exe 02/18/2007 07:00 AM 96,256 smlogsvc.exe 02/18/2007 07:00 AM 53,760 smss.exe 02/18/2007 07:00 AM 40,960 snmp.exe 02/18/2007 07:00 AM 25,088 sort.exe 02/18/2007 07:00 AM 9,728 sprestrt.exe 02/18/2007 07:00 AM 10,240 subst.exe 02/18/2007 07:00 AM 14,848 svchost.exe 02/18/2007 07:00 AM 54,272 syncapp.exe 02/18/2007 07:00 AM 18,896 sysedit.exe 02/18/2007 07:00 AM 29,696 syskey.exe 02/18/2007 07:00 AM 107,520 sysocmgr.exe 02/18/2007 07:00 AM 79,360 systeminfo.exe 02/18/2007 07:00 AM 3,072 systray.exe 02/18/2007 07:00 AM 58,880 takeown.exe 02/18/2007 07:00 AM 32,768 tapicfg.exe 02/18/2007 07:00 AM 84,480 taskkill.exe 02/18/2007 07:00 AM 87,552 tasklist.exe 02/18/2007 07:00 AM 168,960 taskmgr.exe 02/18/2007 07:00 AM 13,824 tcmsetup.exe 02/18/2007 07:00 AM 21,504 tcpsvcs.exe 02/18/2007 07:00 AM 28,672 timeout.exe 02/18/2007 07:00 AM 419,328 tracerpt.exe 02/18/2007 07:00 AM 12,800 tracert.exe 02/18/2007 07:00 AM 26,624 tsecimp.exe 02/18/2007 07:00 AM 37,376 typeperf.exe 10/24/2008 04:12 PM 64,000 tzchange.exe 02/18/2007 07:00 AM 5,632 unlodctr.exe 02/18/2007 07:00 AM 321,024 upg351db.exe 02/18/2007 07:00 AM 16,896 ups.exe 02/18/2007 07:00 AM 4,096 user.exe 02/18/2007 07:00 AM 26,112 userinit.exe 02/18/2007 07:00 AM 49,152 utilman.exe 02/18/2007 07:00 AM 47,104 uwdf.exe 02/18/2007 07:00 AM 29,184 verclsid.exe 02/18/2007 07:00 AM 112,640 verifier.exe 02/18/2007 07:00 AM 1,129 vwipxspx.exe 02/18/2007 07:00 AM 55,296 w32tm.exe 02/18/2007 07:00 AM 38,400 waitfor.exe 02/18/2007 07:00 AM 39,424 wdfmgr.exe 02/18/2007 07:00 AM 62,464 wextract.exe 02/18/2007 07:00 AM 38,400 where.exe 02/18/2007 07:00 AM 48,640 whoami.exe 02/18/2007 07:00 AM 36,864 winchat.exe 08/13/2007 06:45 PM 206,336 WinFXDocObj.exe 02/18/2007 07:00 AM 8,704 winhlp32.exe 02/18/2007 07:00 AM 12,800 winmsd.exe 02/18/2007 07:00 AM 2,112 winspool.exe 02/18/2007 07:00 AM 6,656 winver.exe 08/21/2002 05:13 AM 189,952 WISPTIS.EXE 02/18/2007 07:00 AM 67,072 wlbs.exe 02/18/2007 07:00 AM 10,560 wowexec.exe 02/18/2007 07:00 AM 10,752 wowreg32.exe 02/18/2007 07:00 AM 31,232 wpnpinst.exe 02/18/2007 07:00 AM 5,632 write.exe 02/18/2007 07:00 AM 114,688 wscript.exe 02/18/2007 07:00 AM 30,720 xcopy.exe

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  • Access, ADO & 64-bit

    - by JTeagle
    We have a large codebase that uses ADO under 32-bit, and we need to convert the code to 64-bit. We were using the Jet provider, but I know this is not supported under x64. We're importing definitions from msado15.dll. As of a while ago a 64-bit version of this DLL became available, but we are unable to get it to work. I have written a test program as follows (MFC, using the #imported DLL): map<CString, CString> mapResults ; _ConnectionPtr pConn = NULL ; CString strConn = _T("Provider=Microsoft.ACE.OLEDB.14.0;") _T("Data Source=c:\\program files\\our_company\\our_database.mdb;"); // (Above string only split for readability here.) CString strSQL = _T("SELECT * FROM [our_table] ORDER BY [our_field_1];"); try { pConn.CreateInstance(__uuidof(Connection) ); pConn->Open(_bstr_t(strConn), _bstr_t(_T("") ), _bstr_t(_T("") ), -1); _CommandPtr pCommand = NULL; pCommand.CreateInstance(__uuidof(Command) ); pCommand->CommandType = adCmdText ; pCommand->ActiveConnection = pConn ; pCommand->CommandText = _bstr_t(strSQL); _RecordsetPtr pRS = NULL ; pRS.CreateInstance(__uuidof(Recordset) ); pRS->CursorLocation = adUseClient ; pRS = pCommand->Execute(NULL, NULL, adCmdText); while (pRS->adoEOF != VARIANT_TRUE) { CString strField = (LPCTSTR)(_bstr_t)pRS->Fields->GetItem( (_bstr_t)_T("our_field_1") )->Value ; CString strValue = (LPCTSTR)(_bstr_t)pRS->Fields->GetItem( (_bstr_t)_T("our_field_2") )->Value ; mapResults[strField] = strValue ; pRS->MoveNext(); } } catch(_com_error &e) { CString strError ; strError.Format(_T("Error %08x: %s"),(int)e.Error(), e.ErrorMessage() ); mapResults[_T("COM error") ] = strError ; } Basically, the code will list the table if it succeeds, or list the COM error obtained if it fails. Obviously, we tested the code under 32 bit and got the desired results. On the 64-bit machine, the code explicitly imports from the known 64-bit version of msado15.dll (v6.1.7600.nnn). The machine has had the Office Data Providers (AccessDatabaseEngine_x64.exe) applied to get the new ACE drivers (ACEODBC.DLL, v14.nnn.nnn.nnn). If I look at Data Source under Administrator Tools (I know ODBC isn't the same as ADO, it was just to confirm the DLL was installed correctly), it shows the expected DLL. I can even confirm, using Process Explorer, that the version of msado15.dll it loads at run time (thus confirming that COM is finding the ADO dll) is the 64-bit version. I believe we have MDAC 2.8 installed (we have msado28.tlb in the same place as msado15.dll, but that might have been installed by AccessDatabaseEngine_x64.exe). The test machine is Windows 7 Ultimate, 64-bit. The test code was recompiled on that machine using VS2008 for x64 in full Release and run externally. And yet, we still get COM error 0x800a0e7a (Provider not found). Is there anything any one can suggest as to why this isn't working, or what further tests / checks I can perform to verify that I have all the right stuff on the machine (and thus, that it should work)? I know that ODBC will work under x64 (tried the test program using that) but rewriting our code base for ODBC would be undesirable!

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  • Error Using 32 vs. 64 bit SharePoint 2007 DLLs with PowerShell

    - by Brian Jackett
    Next time you fire up PowerShell to work with the SharePoint API make sure you launch the proper bit version of PowerShell.  Last week I had an interesting error that led to this blog post.  Travel back in time a little bit with me to see where this 32 vs. 64 bit debate started. History     Ever since the first pre-beta bits of Office 2010 landed in my lap I have been questioning whether it’s better to run 32 or 64 bit applications on a 64 bit host operating system.  In relation to Office 2010 I heard a number of arguments for 32 bit including this link from the Office 2010 Engineering team.  Given my typical usage scenarios 32 bit seemed the way to go since I wasn’t a “super RAM hungry” Excel user or the like. The Problem     Since I had chosen 32 bit Office 2010, I tried to stick with 32 bit version of other programs that I run assuming the same benefits and rules applied to other applications.  This is where I was wrong.  Last week I was attempting to use 32 bit PowerShell ISE (Integrated Scripting Environment) on a 64 bit WSS 3.0 server.  When trying to reference the 64 bit SharePoint DLLs I got the following errors about not being able to find the web application.     I have run into these errors when I have hosts file issues or improper permissions to the farm / site collection but these were not the case.  After taking a quick spin around the interwebs I ran across the below forum post comment and another MSDN forum reply that explained the error.  Turns out that sometimes it’s not possible to run 32 bit applications against a 64 bit OS / farm / assembly / etc. …the problem could also be because your SharePoint is 64-Bit but your app is running in 32-bit mode     I quickly exited 32 bit PowerShell ISE and ran the same code under 64 bit PowerShell ISE.  All errors were gone and the script ran successfully.   Conclusion     The rules of 32 vs. 64 bit interoperability do not always apply evenly across all applications and scenarios.  In my case I wasn’t able to run 32 bit PowerShell against 64 bit SharePoint DLLs.  I’m updating all of my links and shortcuts to use 64 bit PowerShell where appropriate.  I’m quite surprised it has taken me this long to run into this error, but sometimes blind luck is all that keeps you from running into errors.  Lesson learned and hopefully this can benefit you as well.  Happy SharePointing all!         -Frog Out   Links http://blogs.technet.com/b/office2010/archive/2010/02/23/understanding-64-bit-office.aspx http://social.msdn.microsoft.com/Forums/en-US/sharepointdevelopment/thread/a732cb83-c2ef-4133-b04e-86477b72bbe3/ http://stackoverflow.com/questions/266255/filenotfoundexception-with-the-spsite-constructor-whats-the-problem

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  • Nested multithread operations tracing

    - by Sinix
    I've a code alike void ExecuteTraced(Action a, string message) { TraceOpStart(message); a(); TraceOpEnd(message); } The callback (a) could call ExecuteTraced again, and, in some cases, asynchronously (via ThreadPool, BeginInvoke, PLINQ etc, so I've no ability to explicitly mark operation scope). I want to trace all operation nested (even if they perform asynchronously). So, I need the ability to get last traced operation inside logical call context (there may be a lot of concurrent threads, so it's impossible to use lastTraced static field). There're CallContext.LogicalGetData and CallContext.LogicalSetData, but unfortunately, LogicalCallContext propagates changes back to the parent context as EndInvoke() called. Even worse, this may occure at any moment if EndInvoke() was called async. http://stackoverflow.com/questions/883486/endinvoke-changes-current-callcontext-why Also, there is Trace.CorrelationManager, but it based on CallContext and have all the same troubles. There's a workaround: use the CallContext.HostContext property which does not propagates back as async operation ended. Also, it does'nt clone, so the value should be immutable - not a problem. Though, it's used by HttpContext and so, workaround is not usable in Asp.Net apps. The only way I see is to wrap HostContext (if not mine) or entire LogicalCallContext into dynamic and dispatch all calls beside last traced operation. Help, please!

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  • ASP.net file operations delay

    - by mtranda
    Ok, so here's the problem: I'm reading the stream from a FileUpload control, reading in chunks of n bytes and writing the array in a loop until I reach the stream's end. Now the reason I do this is because I need to check several things while the upload is still going on (rather than doing a Save(); which does the whole thing in one go). Here's the problem: when doing this from the local machine, I can see the file just fine as it's uploading and its size increases (had to add a Sleep(); clause in the loop to actually get to see the file being written). However, when I upload the file from a remote machine, I don't get to see it until the the file has completed uploading. Also, I've added another call to write the progress to a text file as the progress is going on, and I get the same thing. Local: the file updates as the upload goes on, remote: the token file only appears after the upload's done (which is somewhat useless since I need it while the upload's still happening). Is there some sort of security setting in (or ASP.net) that maybe saves files in a temporary location for remote machines as opposed to the local machine and then moves them to the specified destination? I would liken this with ASP.net displaying error messages when browsing from the local machine (even on the public hostname) as opposed to the generic compilation error page/generic exception page that is shown when browsing from a remote machine (and customErrors are not off) Any clues on this? Thanks in advance.

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  • c - difficulties with bit operations

    - by hatorade
    I'm debugging a program with GDB. unsigned int example = ~0; gives me: (gdb) x/4bt example 0xffd99788: 10101000 10010111 11011001 11111111 why is this not all 1's? i defined it as ~0... then the next line of code is: example>>=(31); and GDB gives me this when I try to examine the memory at bits: (gdb) x/4bt example 0xffffffff: Cannot access memory at address 0xffffffff what is going on???

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  • "You are missing the following 32-bit libraries, and Steam may not run: libc.so.6" The common fixes don't work,

    - by M_Steam_User
    So I know this is a problem that has been asked around a lot, but I've tried a bunch of solutions with no success. I'm running Ubuntu 12.04 (64 bit), and I just installed it yesterday. This is my first time working with linux. The error is: You are missing the following 32-bit libraries, and Steam may not run: libc.so.6 Things I've tried. First, I had downloaded from the steam website. I uninstalled it, and tried again from the ubuntu software centre. sudo apt-get update sudo apt-get install ia32-libs sudo apt-get upgrade This installed a bunch of the 32 bit libraries, but did not fix the issue. This seems like the major fix for most people. The direct approach of sudo apt-get install libc.so.6 returns this: Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package libc.so.6 E: Couldn't find any package by regex 'libc.so.6' I guess libc.so.6 isn't a package, just a single file or something? I also tried gksudo gedit /etc/ld.so.conf.d/steam.conf Added these two lines, those the second one was all ready in the file, but copied over: /usr/lib32 /usr/lib/i386-linux-gnu/mesa Then executed: sudo ldconfig But nothing seemed to happen, steam still doesn't work. So, I feel like it is more likely that I have the library and steam isn't looking in the right place. One thing I've seen is people usually reference /usr/local/lib/ for your library locations. However, I can't find where to cd into /usr/, it isn't in my home folder. If /usr/ is the home folder, there is only a /.local folder which only has /share, no lib anywhere. Sorry for my linux ignorance. I appreciate any help, I honestly have no idea how to confirm I have the library and point steam to it, or if that is even the right thing to do. Edit: Tried this, not entirely sure what it means ~$ ls -l /lib32/libc* -rwxr-xr-x 1 root root 1721832 Sep 30 11:06 /lib32/libc-2.15.so -rw-r--r-- 1 root root 185928 Sep 30 11:06 /lib32/libcidn-2.15.so lrwxrwxrwx 1 root root 15 Sep 30 11:06 /lib32/libcidn.so.1 -> libcidn-2.15.so -rw-r--r-- 1 root root 34316 Sep 30 11:06 /lib32/libcrypt-2.15.so lrwxrwxrwx 1 root root 16 Sep 30 11:06 /lib32/libcrypt.so.1 -> libcrypt-2.15.so lrwxrwxrwx 1 root root 12 Sep 30 11:06 /lib32/libc.so.6 -> libc-2.15.so

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  • Asynchronous SQL Operations

    - by Paul Hatcherian
    I've got a problem I'm not sure how best to solve. I have an application which updates a database in response to ad hoc requests. One request in particular is quite common. The request is an update that by itself is quite simple, but has some complex preconditions. For this request the business layer first requests a set of data from the data layer. The business logic layer evaluated the data from the database and parameters from the request, from this the action to be performed is determined, and the request's response message(s) are created. The business layer now executes the actual update command that is the purpose of the request. This last step is the problem, this command is dependent on the state of the database, which might have changed since the business logic ran. Locking down the data read in this operation across several round-trips to the database doesn't seem like a good idea either. Is there a 'best-practice' way to accomplish something like this? Thanks!

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  • Allocating 32-bit integer arrays in 64-bit machines

    - by Shredderroy
    I have a 64-bit i7 machine. Suppose I allocate memory for n 32-bit integers. How many physical registers will actually be used in the allocation: n, or n/2? I tried to write the following simple programme to find out. #include <iostream> #include <cstdlib> using namespace std; int main (int argc, char *argv[]) { int a[4]; cout << &a[0] << "\t" << &a[3] << endl; cin.ignore (1); return 0; } // End main () The output is: 0018FA04 0018FA10 They seem further apart than they should be. Why aren't the addresses 04 and 07? And does this mean that the system is actually allocating four (or more) integers, instead of packing the four 32-bit integers into two 64-bit registers? Thanks in advance for your help.

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  • How to build 64-bit Python on OS X 10.6 -- ONLY 64 bit, no Universal nonsense

    - by ssteiner
    I just want to build this on my development machine -- the binary install from Python.org is still 32 bits and installing extensions (MySQLdb, for example) is driving me nuts with trying to figure out the proper flags for each and every extension. Clarification: I did NOT replace the system Python, I just installed the Python.org binary into its normal place at /Library/..., not /System/Library/.... Everything else seems to build 64 bit by default, and the default Python 2.6.1 was 64 bit (before I replaced it with the Python.org build figuring it was a direct replacement)` I just want a 64 bit only build that will run on my one machine without any cruft. Does anyone have a simple answer? Thanks much, [email protected]

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  • Doing 64 bit manipulation using 32 bit data in Fixed point arithmetic using C.

    - by Viks
    Hi, I am stuck with a problem. I am working on a hardware which only does support 32 bit operations. sizeof(int64_t) is 4. Sizeof(int) is 4. and I am porting an application which assumes size of int64_t to be 8 bytes. The problem is it has this macro BIG_MULL(a,b) ( (int64_t)(a) * (int64_t)(b) 23) The result is always a 32 bit integer but since my system doesn't support 64 bit operation, it always return me the LSB of the operation, rounding of all the results making my system crash. Can someone help me out? Regards, Vikas Gupta

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  • Can't load AMD 64-bit .dll on a IA 32-bit platform

    - by Guihua
    I download the Gurobi package for linear programming. I import the corresponding gurobi.jar package. Then run the example program. Then it appears the following errors: Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\gurobi460\win64\win64\bin\GurobiJni46.dll: Can't load AMD 64-bit .dll on a IA 32-bit platform Then I downloaded the window 64 bit Jre, and use the "window--preference--Installed JRE" to install this new JRE. However, it still appeared this error. Could you help me? Thank you !

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  • Ways to wrap 32-bit .dll so it will work in a 64-bit OS

    - by dcarlet101
    So, I've been using JPIB to communicate with GPIB devices in my java program. However, I have run into a snag. Newer systems are built on 64 bit OS's. However, the jpib.dll file is written in 32-bit. I can't think of any kind of calls that it would need to make that are truly 64-bit dependent. The real trouble here is that the JPIB project hasn't been updated since september of 2006. I've tried emailing the dev through SourceForge but I don't think I'll get anywhere with that. Does anyone know of any ways around this? Or know how (and could tell me how) to recompile the .dll into AMD-64 compliance?

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  • Implementing set operations in TSQL

    - by dotneteer
    SQL excels at operating on dataset. In this post, I will discuss how to implement basic set operations in transact SQL (TSQL). The operations that I am going to discuss are union, intersection and complement (subtraction).   Union Intersection Complement (subtraction) Implementing set operations using union, intersect and except We can use TSQL keywords union, intersect and except to implement set operations. Since we are in an election year, I will use voter records of propositions as an example. We create the following table and insert 6 records into the table. declare @votes table (VoterId int, PropId int) insert into @votes values (1, 30) insert into @votes values (2, 30) insert into @votes values (3, 30) insert into @votes values (4, 30) insert into @votes values (4, 31) insert into @votes values (5, 31) Voters 1, 2, 3 and 4 voted for proposition 30 and voters 4 and 5 voted for proposition 31. The following TSQL statement implements union using the union keyword. The union returns voters who voted for either proposition 30 or 31. select VoterId from @votes where PropId = 30 union select VoterId from @votes where PropId = 31 The following TSQL statement implements intersection using the intersect keyword. The intersection will return voters who voted only for both proposition 30 and 31. select VoterId from @votes where PropId = 30 intersect select VoterId from @votes where PropId = 31 The following TSQL statement implements complement using the except keyword. The complement will return voters who voted for proposition 30 but not 31. select VoterId from @votes where PropId = 30 except select VoterId from @votes where PropId = 31 Implementing set operations using join An alternative way to implement set operation in TSQL is to use full outer join, inner join and left outer join. The following TSQL statement implements union using full outer join. select Coalesce(A.VoterId, B.VoterId) from (select VoterId from @votes where PropId = 30) A full outer join (select VoterId from @votes where PropId = 31) B on A.VoterId = B.VoterId The following TSQL statement implements intersection using inner join. select Coalesce(A.VoterId, B.VoterId) from (select VoterId from @votes where PropId = 30) A inner join (select VoterId from @votes where PropId = 31) B on A.VoterId = B.VoterId The following TSQL statement implements complement using left outer join. select Coalesce(A.VoterId, B.VoterId) from (select VoterId from @votes where PropId = 30) A left outer join (select VoterId from @votes where PropId = 31) B on A.VoterId = B.VoterId where B.VoterId is null Which one to choose? To choose which technique to use, just keep two things in mind: The union, intersect and except technique treats an entire record as a member. The join technique allows the member to be specified in the “on” clause. However, it is necessary to use Coalesce function to project sets on the two sides of the join into a single set.

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  • Speed up bitstring/bit operations in Python?

    - by Xavier Ho
    I wrote a prime number generator using Sieve of Eratosthenes and Python 3.1. The code runs correctly and gracefully at 0.32 seconds on ideone.com to generate prime numbers up to 1,000,000. # from bitstring import BitString def prime_numbers(limit=1000000): '''Prime number generator. Yields the series 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 ... using Sieve of Eratosthenes. ''' yield 2 sub_limit = int(limit**0.5) flags = [False, False] + [True] * (limit - 2) # flags = BitString(limit) # Step through all the odd numbers for i in range(3, limit, 2): if flags[i] is False: # if flags[i] is True: continue yield i # Exclude further multiples of the current prime number if i <= sub_limit: for j in range(i*3, limit, i<<1): flags[j] = False # flags[j] = True The problem is, I run out of memory when I try to generate numbers up to 1,000,000,000. flags = [False, False] + [True] * (limit - 2) MemoryError As you can imagine, allocating 1 billion boolean values (1 byte 4 or 8 bytes (see comment) each in Python) is really not feasible, so I looked into bitstring. I figured, using 1 bit for each flag would be much more memory-efficient. However, the program's performance dropped drastically - 24 seconds runtime, for prime number up to 1,000,000. This is probably due to the internal implementation of bitstring. You can comment/uncomment the three lines to see what I changed to use BitString, as the code snippet above. My question is, is there a way to speed up my program, with or without bitstring?

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  • bit.ly API thumbnails

    - by user160222
    The bit.ly info API returns URLs for thumbnail images. When I attempt to access these images, I receive an access denied error. How do you access the thumbnail images generated by bit.ly? EDIT: I am testing the image URL by taking the URL provided by the info API and using the browser to access. Bit.ly returns an Access Denied error code. Do I need to somehow provide the login and apikey?

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