Altera RTE for OpenCL Bedienungsanleitung PDF herunterladen (Seite 17)

• OpenCL Design Examples page on the Altera website

Executing an OpenCL Kernel on an FPGA

Build your OpenCL host application in Microsoft Visual Studio version 2010 Professional, and run the

application by invoking the hello_world.exe executable. The AOCL is compatible with 64-bit host binaries

only.

Building the Host Application

The <path_to_exm_opencl_hello_world_x64_windows_<version>>\hello_world\hello_world.sln file contains the

host solution. After you open this .sln file in Microsoft Visual Studio, you can build the host application in

the main.cpp file.

To build the host application, perform the following tasks:

1. Open the <path_to_exm_opencl_hello_world_x64_windows_<version>>\hello_world\hello_world.sln file in

Microsoft Visual Studio.

2. Verify that the build configuration is correct. The default build configuration is Debug, but you can

use Release. You must select the appropriate option as the solution platform (for example, for x64

architecture, select x64).

3. Build the solution by selecting the Build > Build Solution menu option, or by pressing the F7 key.

The hello_world.exe executable will be in the <path_to_exm_opencl_hello_world_x64_windows_<version>>\

hello_world\bin folder.

4. Verify that the build is correct. An output ending with a message similar to the one shown below

notifies you of a successful build:

1> Build succeeded.

1> Time Elapsed 00:00:03:29

========== Build: 1 succeeded, 0 failed, 0 up-to-date, 0 skipped ==========

Attention:

You can ignore the LNK4009: PDB 'vc90.pdb' was not found with...

warnings because they have no effect on the build. The compiler might issue this type of

warning messages if you have built your Windows libraries using a previous version of

Microsoft Visual Studio.

Running the Host Application

To execute the OpenCL kernel on the FPGA, run the Windows host application that you built from

the .sln file.

1. Add the path %ALTERAOCLSDKROOT%\host\windows64\bin to the PATH environment variable.

2. At a command prompt, navigate to the host executable within the

<path_to_exm_opencl_hello_world_x64_windows_<version>>\hello_world\bin folder.

3. Invoke the hello_world.exe executable.

The hello_world executable executes the kernel code on the FPGA.

Output from Successful Kernel Execution

When you run the host application to execute your OpenCL kernel on the target FPGA, the RTE notifies

you of a successful kernel execution.

2-8

Executing an OpenCL Kernel on an FPGA

OCL005-15.0.0

2015.05.04

Altera Corporation

Getting Started with the Altera RTE for OpenCL for 64-Bit Windows

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