32bit-64bit

I am writing my web service in .NET 3.5, in this I have to access SharePoint 2010 data, but SharePoint requires 64-bit mode for my application. Visual Studio by default in 32-bit mode. How can I run my Visual Studio 2013 in 64-bit? This is what my task manager shows: I think I need this to be 64-bit, what should I do now? Visual Studio itself is a 32-bit application and cannot be run in "64-bit mode". However, Visual Studio can create both 32-bit and 64-bit applications and the debugger can connect to both types of executables . There is no need for Visual Studio to run in a specific mode to

I am trying to run a Bioinformatics program for MRS spectrosopy analysis called "jMRUI". The executable for this program is a .sh with the following code: java -Xss2m -mx1200m -Djava.library.path=lib -jar lib/mrui.jar I have both the 64bit and 32bit JDK 1.8 installed on my PC at the directory /usr/lib/jvm/. 64bit found at: /usr/lib/jvm/jdk1.8.0_x64/bin/java 32bit found at: /usr/lib/jvm/jdk1.8.0_x86/bin/java The pointer symbolic link at /usr/bin/java points to /etc/alternatives/java which points to /usr/lib/jvm/jdk1.8.0_x64/bin/java if the 64bit version is currently selected or /usr/lib/jvm

I have a piece of C++ code (compiled with g++ under a GNU/Linux environment) that load a function pointer (how it does that doesn't matter), pushes some arguments onto the stack with some inline assembly and then calls that function, the code is like : unsigned long stack[] = { 1, 23, 33, 43 }; /* save all the registers and the stack pointer */ unsigned long esp; asm __volatile__ ( "pusha" ); asm __volatile__ ( "mov %%esp, %0" :"=m" (esp)); for( i = 0; i < sizeof(stack); i++ ){ unsigned long val = stack[i]; asm __volatile__ ( "push %0" :: "m"(val) ); } unsigned long ret = function_pointer(); /

Why don't we see twice better performance when executing a 64-bit operations (e.g. Double precision operation) on a 64-bit machine, compared to executing on a 32-bit machine? In a 32-bit machine, don't we need to fetch from memory twice as much? more importantly, dont we need twice as much cycles to execute a 64-bit operation? “64-bit machine” is an ambiguous term but usually means that the processor's General-Purpose Registers are 64-bit wide. Compare 8086 and 8088 , which have the same instruction set and can both be called 16-bit processors in this sense . When the phrase is used in this

I learned yesterday that in DelphiXE using the compiler directive: {$SetPEFlags IMAGE_FILE_LARGE_ADDRESS_AWARE} you can access/use 4GB address space on 64bit computers even though DelphiXE compiler produces a 32bit code. I tried today DelphiXE program on 4GB machine with Windows7 and after starting the program I really get the following result: Kbytes of physical memory: ~4.000.000KB Kbytes of free physical memory: ~3.200.000KB Percent of Memory in use: ~20% Kbytes of virtual address space: ~4.000.000KB¨ Kbytes of free virtual address space: ~4.000.000KB Each time after loading several objects

I am using 32 bit win.7 and using Eclipse. Also having 4GB RAM. I want to allocate my java application a maximum heapsize of around 3 GB, but I am able to allocate maximum 1.5GB through VM arguments -Xmx1056m . What should I do? If I Install a 64 bit win.7. it would be able then to allocate 3GB heapsize to my app? A regular 32-bit Windows process can only address 2GB of memory, even if you have more memory available. You can find the memory limits for different Windows versions here . Since the VM need memory for more things than just the heap, the max heap size will be slightly less than the