About Altera OpenCL Compilation

There is currently no way to specify that kernels in a source file are will be launched/run non-concurrently. The compiler always assumes that they may run simultaneously, so there is no resource sharing (either local memory or other resources) across distinct kernels. If you want to share resources, then you can currently do this manually - define a single kernel with a local memory system, and then call sub-functions from that kernel that define the functionality of the independent kernels. You can pass a local memory pointer to those "kernel" sub-functions.