XFCE: Set volumen function keys

Go to Settings > Keyboard > Shortcuts and add three shortcuts for your function keys. The commands should be:

amixer set Master 5%+

amixer set Master 5%-

amixer set Master toggle

This requires that the function keys are actually recognized by your system but have no command assigned till now

VirtualBox: ResizeHD

In general the following should work:

VBoxManage modifyhd MYHD.vdi --resize 20000

 

Were 20000 is more or less 20 GB.

If the command fails several reasons could be the cause.

• The virtual disk is already larger. Till now you cannot shrink drives that way. Take a close look in the VM whether you already use that space actually. In Windows this information is under Computer Management --> Storage --> Disk Management


• The virtual disk has the wrong type. Issue the command:

 VBoxManage showhdinfo MYHD.vdi

If the result is not:

Format variant: dynamic default

you have to migrate your disk to that dynamic system. Since this is the default container for newer versions you can simply clone your HD file and then enlarge the new one:

VBoxManage clonehd MYHD.vdi MYNEWHD.vdi

• I did not encounter other errors, please comment if you have any problem and/or solution

 

 

 

WINDOWS: Build Boost for Visual Studio 2010

Source:

http://stackoverflow.com/questions/2629421/how-to-use-boost-in-visual-studio-2010

If you are using headers only libraries, then all you need to do is to unarchive the boost download and set up the environment variables. The instruction below set the environment variables for Visual Studio only, and not across the system as a whole. Note you only have to do it once.

1. Unarchive the latest version of boost (1.47.0 as of writing) into a directory of your choice (e.g.C:\boost_1_47_0).


2. Create a new empty project in Visual Studio.


3. Open the Property Manager and expand one of the configuration for the platform of your choice.


4. Select & right click Microsoft.Cpp.<Platform>.user, and select Properties to open the Property Page for edit.


5. Select VC++ Directories on the left.


6. Edit the Include Directories section to include the path to your boost source files.


7. Repeat steps 3 - 6 for different platform of your choice if needed.

If you want to use the part of boost that require building, but none of the features that requires external dependencies, then building it is fairly simple.

1. Unarchive the latest version of boost (1.47.0 as of writing) into a directory of your choice (e.g.C:\boost_1_47_0).


2. Start the Visual Studio Command Prompt for the platform of your choice and navigate to where boost is.


3. Run: bootstrap.bat to build b2.exe (previously named bjam).


4. Run b2: (Win32) b2 --toolset=msvc-10.0 --build-type=complete stage ; (x64) b2 --toolset=msvc-10.0 --build-type=complete architecture=x86 address-model=64 stage. Go for a walk / watch a movie or 2 / ....


5. Go through steps 2 - 6 from the set of instruction above to set the environment variables.


6. Edit the Library Directories section to include the path to your boost libraries output. (The default for the example and instructions above would be C:\boost_1_47_0\stage\lib. Rename and move the directory first if you want to have x86 & x64 side by side (such as to<BOOST_PATH>\lib\x86 & <BOOST_PATH>\lib\x64).


7. Repeat steps 2 - 6 for different platform of your choice if needed.

If you want both x64 & win32 side by side, add "--stagedir=lib/win32" and "--stagedir=lib/x64" to the respective builds

Exchange 2010: Enable RPC over HTTPS: Outlook Anywhere

 

 

 

In Exchange Management Console select Server Node and  Client Access.

 

In action pane hit Enable Outlook Anywhere.

 

Additionally you need to install the Feature RPC over HTTP Proxy of Win200 Server.

 

http://exchangeserverpro.com/how-to-configure-exchange-server-2010-outlook-anywhere

EXCHANGE 2010: An error caused a change in the current set of domain controllers

 

 

After some digging in the profile, I found out the following file, which seemed to be the cause of the problem:

c:\users\<specific user>\appdata\roaming\microsoft\mmc\Exchange Management Console

 

Rename or delete this file, restart the EX2010 EMC and all errors will be gone.

 

From:

http://trycatch.be/blogs/pdtit/archive/2010/02/04/an-error-caused-a-change-in-the-current-set-of-domain-controllers-exchange-2010.aspx

 

 

Outlook 2010 HTML break blue citation line

Coming from Outlook 2003 everyone knows that one can break the blue line marking the cited text  by entering a new text or at least with the common reverse indent button. This does no longer work for Outlook 2007 and 2010 as the blue line is now represented in some different way.

You can get around this by Ctrl+Q but  if you check the email at the recipients mailbox, you will see the unbroken blue line again.

If you switch to Rich Text you can actually use Ctrl+Q and it will be that way at the recipients side too.

If you have a real solution to the html problem, please comment!!!!

 

Please refrain from any unfeasible comments about the sense and non-sense of HTML mails. For that a lot of forums are available online to take that garbage!

OpenCL programming

OpenCL Kernels get compiled at execution time (Just in Time, JIT).
This means that any error inside the kernel is discovered at that time.
The error message I get till now are very silent about what the problem of the kernel is.
So there is just one method of commenting and uncommenting to get a kernel debugged just for compilation.

Intel however recently released it's first beta version of OpenCL with a lot of tools.
As with early Parallel Studio, these tools are only available for Windows (in particular Win Vista + and Server 2008) and not for Linux.
Note, that the runtime for compiling and running OpenCL is available for Linux, Mac and Windows!

Included is the Intel OpenCL Offline Compiler where you can load your kernel and precompile it.
Here the error messages are much more helpfull (of course, helpfull in a way ordinary compiler messages are helpfull :-)).
Nevertheless, a great tool which makes daily programming a lot easier.

LINK: http://www.intel.com/go/opencl/

OpenCL GPU computing tutorial

Very nice tutorial with hands on about installation, setup and programming:
http://www.thebigblob.com/getting-started-with-opencl-and-gpu-computing/

NVIDIA CUDA disable/enable ECC , new commands

In order to query ECC status in CUDA 4.0 (and hopefully the next versions), nvidia-smi works a little bit different:

nvidia-smi -q | grep -e"Ecc Mode" -e"Product" -A2

will give you a excerpt.
Just use nvidia-smi -q for full output



To enable ECC:

nvidia-smi -i 0 -e 1


To disable ECC:

nvidia-smi -i 0 -e 0

Where i is the GPU ID!

TinyGPU upgrade to CUDA Toolkit 4.0

All nodes of the TinyGPU Cluster is now on the current CUDA Toolkit 4.0 and the appropriate driver.