= Example applications = BOINC provides several example applications in the boinc/samples/ directory. See the [CompileApp instructions for building BOINC applications]. The example applications are: * '''example_app''': a example single-thread native BOINC application. The application does things (like checkpointing and graphics) that can be tricky or confusing. You can use it as a template for your own BOINC application; just rip out the computation part (which is trivial) and replace it with your code. You can run the application standalone. Create a file 'in' in the directory where you run it; it will convert it to upper case and write it to 'out', and use 20 seconds of CPU time. You can also run the graphics app standalone; it will show a bouncing 3D ball. If you copy the files `boinc/txf/Helvetica.txf` and `boinc/samples/uppercase/logo.jpg` to the directory where it runs, you'll also see an image and some text. * '''multi_thread''': an example multi-thread application. * '''atiopencl''': an OpenCL application for ATI GPUs * '''nvcuda''': a CUDA application for NVIDIA GPUs. * '''nvopencl''': an OpenCL application for NVIDIA GPUs. There are also some "wrappers" that interface existing applications to BOINC: * '''wrapper''': the [WrapperApp BOINC wrapper]. * '''vboxwrapper''': a wrapper for [VmApps applications that run in virtual machines] * '''wrappture''': a wrapper for Rappture applications ... and a couple of test applications: * '''worker''': a representative legacy application (i.e. it doesn't use the BOINC API or runtime library). Used for testing the wrapper. * '''sleeper''': test application for non-CPU-intensive projects (used for testing the BOINC client).