I have a very minimal install of 64 bit Ubuntu 8.04. When I try to run some 32-bit programs, such as my "jhead" program, I get the message "No such file or directory" I figured it may be a library problem, but when I do ldd jhead instead of a list of libraries it needs, I just get the message "not a dynamic application". Same for ano...
What would be the negative effects of installing a legacy 32bit app into the C:\Program Files instead of the C:\Program Files(x86) ? ...
I understand that 64-bit is the best. However, I've heard that there may be compatibility problem with 32-bit programs. Is this compatibility issue a major enough issue for me getting a 32-bit OS or is 64-bit Windows Vista still better, despite the compatibility issue? I will mostly be using this for development purposes, but I may snea...
Will Java code built and compiled against a 32-bit JDK into 32-bit byte code work in a 64-bit JVM? Or does a 64-bit JVM require 64-bit byte code? To give a little more detail, I have code that was working in a Solaris environment running a 32-bit JVM, but now I'm getting issues after upgrading the JDK and Weblogic Server to 64-bit. ...
Can a 64bit Citrix server running a 32bit app through WoW64 handle just as many instances/users as the 32bit Citrix server equivalent? And if so if I up the memory in the 64bit server will the number of instances/users scale too? Or are there some strange memory considerations with a 64bit server running a 32bit app? ...
During installation with an NSIS installer, I need to check which JRE (32bit vs 64bit) is installed on a system. I already know that I can check a system property "sun.arch.data.model", but this is Sun-specific. I'm wondering if there is a standard solution for this. ...
I discovered that I can NOT load any 32-bit DLLs using my version of Office 2007. I’m using Vista 64bit and I assume that Office is also in 64-bit mode. Is it possible to start Excel in 32-bit mode Or Is there a way to declare a DLL using VB to load a 32-bit DLL? Since I don’t have the source code to some of the DLLs I am using, I can’t...
I am attempting to use a 32 bit application to talk to an Oracle database from Vista 64 bit (Embarcadero RapidSQL). I already have the Oracle 11g 64 bit client installed for the web apps I develop, but because RapidSQL is a 32 bit application, it requires a 32 bit version of the Oracle client. Is it safe to simply install the 32 bit Ora...
What is the best way to compile programs with DMD on a 64bit machine? It doesn't need to compile to 64Bit code. I know about GDC, but want to work with D2 also. There is also chroot, but am hoping for a simpler way. The actual problem isn't with compiling, but linking. DMD calls on GCC to perform linking with system libraries. Could I g...
Using the javascript function function squareIt(number) { return number * number; } When given the number 4294967296 the function returns 18446744073709552000 is returned Everyone knows the real answer is 18446744073709551616 :-) I guess this is to to with rounding on my 32-bit machine. However, would this script give the right a...
I'm doing performance tuning for our Tomcat cluster running on SPARC hardware. The 32-bit JVM gives us sufficient memory for now, but we are going to start using Terracotta for server striping so the extra memory the 64-bit JVM offers could be needed soon. In addition to a bigger memory footprint, moving to the 64-bit JVM on SPARC resul...
I am trying to read a binary file with the BinaryReader class, and I need to read it in as blocks of UInt32, and then do some bit shifting etc. afterwords. But, for some reason bit order is reversed when I use the ReadUInt32 method. If I for example have a file where the first four bytes looks like this in hex, 0x12345678, they end up ...
My coding platform is a Vista machine with 4GB RAM. And while the machine is slick, I know there are 800MB of RAM that is not used at all. (only about 3.2GB or 4GB is used). can I installed something to help my platform for coding? I think Wubi will not be able to use those RAM, but VMware or VirtualPC might be? Or a RAM disk so tha...
Is there some kind of secret to hooking both 64bit & 32bit process on a 64bit system? In an application that I'm currently writing I need to be able to hook 64bit processes. Hooking 32bit processes works just fine on 64 & 32bit systems but, no messages are received when trying to hook 64bit applications. Before anyone tells me that I ...
I'm writing an application that interacts with other processes on a x64 Vista machine. In order to do this it will need to know if the other process is running in 32bit or 64bit mode. How can I detect this? ...
I am using 32 bit RHEL 4.4 on AMD64 based hardware. Here is the output from uname -a $ uname -a Linux zulu 2.6.9-42.0.10.ELsmp #1 SMP Fri Feb 16 17:17:21 EST 2007 i686 athlon i386 GNU/Linux I have 8Gigs of memory installed on this system, OS being 32 bits I would assume that my system will not be able to make use of full 8GB memory. B...
Here is my problem: I have developed an application which can be run on various platforms, including windows and unix. This app runs well on pure Win32 box (WinXP) or a pure Win64 (Win2K3 x64 edition) and other unix platforms. It only fails when running on a 64 bit Win2K3 in 32 bit mode. This app invokes a third party dll at the runti...
Following a friends advice, I have just replaced a 64bit version of ubuntu with the 32bit version on my desktop. My desktop is a 2yr old dell with 1GB RAM. Suddenly, it seems like I am using almost 50% less RAM during my usual workflow. Could someone explain why this would be the case? Is it normal, or was my 64bit installation hosed?...
I have to test some "random numbers" generatied by a program in matlab, with diehard. it accept only 32 bit binary file, while if i save my data in matlab, they are saved in binary file with double precision (so 2*64=128 bit binary file). how can i take a 32 bit binary file in matlab, working on a 64 bit system? ...
Hello, I am trying to find a programmatic way to tell if a binary is x86, x64, or ia64. Platform: Windows. Language: c/c++. Background: Before trying to load a third-party dll, I need to find out its bitness. Appreciate any pointers. ...