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.NET Forum / Languages / Managed C++ / March 2006Memeory 3G problems ?
I Have a workstation with AMD64 CPU’s and 6 Giga Byte RAM ,OS Windows XP 64. I have 2 problems with it: 1.I want my .NET application(VS.NET 2003 VC++7.0) to use more then 3 GByte of memory,how to do? VirtualAlloc can do it? 2.I use VS .NET 2003,it can not use more than 3GByte of memory,so I want to install VS2005 to do it ,but VS2005 can not installed ,"MSXML 6.0" install failed. Can anybody tell me how solve this 2 issues? -------- Thanks jht email: tom_jht@yahoo.com > I Have a workstation with AMD64 CPU’s and 6 Giga Byte RAM ,OS Windows XP 64. > I have 2 problems with it: [quoted text clipped - 3 lines] > install VS2005 to do it ,but VS2005 can not installed ,"MSXML 6.0" install > failed. you should probably use VirtualAllocEx. it takes a size_t size parameter, which means you can specify > 2^32-1 bytes. you can download msxml 6 here: http://www.microsoft.com/downloads/details.aspx?FamilyID=993C0BCF-3BCF-4009-BE21 -27E85E1857B1&displaylang=en but it think you can also install it when you install the VS2005 prerequisites. -- Kind regards, Bruno. bruno_nos_pam_van_dooren@hotmail.com Remove only "_nos_pam" |I Have a workstation with AMD64 CPU's and 6 Giga Byte RAM ,OS Windows XP 64. | I have 2 problems with it: | 1.I want my .NET application(VS.NET 2003 VC++7.0) to use more then 3 GByte of | memory,how to do? VirtualAlloc can do it? You need a 64 bit compiler to generate 64 bit code. 32 bit compilers (VS2002, VS2003) are not capable to use > 3GB RAM. One option is to use the 64bit C++ compiler and linker included with latest platform SDK. | 2.I use VS .NET 2003,it can not use more than 3GByte of memory,so I want to | install VS2005 to do it ,but VS2005 can not installed ,"MSXML 6.0" install | failed. 1. Install the V2.0 Framework 2. Install VS2005 RTM professional (not a beta!) and you need to install the optional 64 bit C++ compiler. Willy. what is the 64bit C++ compiler and latest platform SDK. what is VS2005 RTM professional jht The VS2005 RTM professional is the release of Visual Studio .NET Professional RTM = Release to manufacturing >what is the 64bit C++ compiler and latest platform SDK. >what is VS2005 RTM professional > >jht The latest Platform SDK is found here: http://www.microsoft.com/downloads/details.aspx?FamilyID=eba0128f-a770-45f1-86f3 -7ab010b398a3&DisplayLang=en RTM is Release To Manufacturing, but what I really meant was a Retail version not a Beta. Willy. | what is the 64bit C++ compiler and latest platform SDK. | what is VS2005 RTM professional | | jht hi willy I have installed vs2005,but it can't use >3G memory ,,i have to install latest Platform SDK ? and if i installed latest Platform SDK ,how to do next ,still use VirtualAlloc () fuction? thank you very much! jht >The latest Platform SDK is found here: > [quoted text clipped - 9 lines] >| >| jht | hi willy | I have installed vs2005,but it can't use >3G memory What exactly are you trying and what problems do you have? I'm using vs2005 on X64 and I can allocate > 3GB of memory, so it should work for you too, as long as you target X64 (see your projects setting). Willy. i have a stucture like this: typedef struct d_type{ int f1; int f2; .... long memo; } stdu; long s=sizeof(stdu); s=200bytes now I have 20000000 data(type stdu) ,i want to allocate memory like this: stdu *p; p=(stdu *)VirtualAlloc(0,20000000*sizeof(stdu),MEM_COMMIT,PAGE_READWRITE); it can not allocate >3G memory on winxp x64 with vs2005; how to do ? thanks jht >| hi willy >| I have installed vs2005,but it can't use >3G memory [quoted text clipped - 4 lines] > >Willy. > it can not allocate >3G memory on winxp x64 with vs2005; > > how to do ? You've never replied to Willy's point - make sure your Project Type (not just the computer you're running on) is x64. You're probably building a 32 bit executable, which still won't be able to allocate more than 3GB even if you run it on a 64 bit machine. -cd what is the Project Type x64,i created it with MFC in vs2005,is it X64 Project ? >> it can not allocate >3G memory on winxp x64 with vs2005; >> [quoted text clipped - 6 lines] > >-cd is it possible to allocate >3G RAM with MFC? with vs2005 on winxp x64 os?if it is possible ,how to do? thanks jht >> it can not allocate >3G memory on winxp x64 with vs2005; >> [quoted text clipped - 6 lines] > >-cd Make sure you did select the "X64 compilers and tools" during VS2005 set-up (on a 32 or 64 bit system doesn't matter). Then, and only then, will you be able to create 64 bit C++ projects. Willy. |i have a stucture like this: | typedef struct d_type{ [quoted text clipped - 28 lines] | > | >Willy. what is the "X64 compilers and tools"? i have installed Microsoft Platform SDK for Windows Server 2003 SP1,is it possible? would you mind give me some link to do it? >Make sure you did select the "X64 compilers and tools" during VS2005 set-up >(on a 32 or 64 bit system doesn't matter). [quoted text clipped - 7 lines] >| > >| >Willy. Jeez man, you said from the very beginning that you owned VS2005, install it and select the 64 tools option. Willy. | what is the "X64 compilers and tools"? i have installed Microsoft Platform | SDK for Windows Server 2003 SP1,is it possible? would you mind give me some [quoted text clipped - 11 lines] | >| > | >| >Willy. hi Willy, I have a workstation with AMD64 CPU's and 6 Giga Byte RAM ,OS Windows XP 64 , installed Microsoft Platform SDK for Windows Server 2003 SP1. My problem is: 1.I want to use MFC in vs2005 to develope my application,is it possible to use >3G RAM?how to use >3G RAM with VirtualAlloc(),can u help me ,or give me some detail link(step by step). 2.there is no option in the vs2005 for AMD64 Platform in "configation manager" ,why? 3.would you mind to give me some link to allocate memory in vs2005? thank u very much! ------- jht >Make sure you did select the "X64 compilers and tools" during VS2005 set-up >(on a 32 or 64 bit system doesn't matter). [quoted text clipped - 7 lines] >| > >| >Willy. > hi Willy, > I have a workstation with AMD64 CPU's and 6 Giga Byte RAM ,OS [quoted text clipped - 10 lines] > "configation > manager" ,why? It is called x64 (but AMD64 in early Betas). It is available only if you have the Professional Edition, or better, and specifically choose to install it. Default is 32 bit tools only. > 3.would you mind to give me some link to allocate memory in vs2005? If you run in 64 bit mode, you have *lots* of space available. If you run a 32 bit application under 64 bit Windows, and the app is linked with /LARGEADDRESSAWARE, it can access up to (almost) 4GB. Bo Persson "specifically choose to install it. Default is 32 bit tools only." what is meaning ? how to do to choose 64 tools? >> hi Willy, >> I have a workstation with AMD64 CPU's and 6 Giga Byte RAM ,OS [quoted text clipped - 14 lines] > >Bo Persson hi Bo Persson If you run a 32 bit application under 64 bit Windows, and the app is linked with /LARGEADDRESSAWARE, it can access up to (almost) 4GB. but I only use 2GB,why?can u tell me some detail,how to do ? thank u very much! ----- jht >> hi Willy, >> I have a workstation with AMD64 CPU's and 6 Giga Byte RAM ,OS [quoted text clipped - 14 lines] > >Bo Persson Can anyone help me? thanks jht >hi Bo Persson >If you run a 32 bit application under 64 bit Windows, and the app is [quoted text clipped - 11 lines] >> >>Bo Persson hi Willy and everyone, My problem have solved,thank u very much! cheers! best regards! jht >Make sure you did select the "X64 compilers and tools" during VS2005 set-up >(on a 32 or 64 bit system doesn't matter). [quoted text clipped - 7 lines] >| > >| >Willy. 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