Final answer:
OpenCL deals with the problem of making source code portable across multiple different data-parallel architectures by providing a common language and set of APIs that abstract the underlying architecture-specific details.
Step-by-step explanation:
OpenCL is a programming framework that allows developers to write code that can be executed across different data-parallel architectures, such as GPUs, CPUs, and FPGAs. It deals with the problem of making source code portable by providing a common language and set of APIs that abstract the underlying architecture-specific details. The OpenCL source code is written in a C-like language, and it is then compiled at runtime to target the specific device being used. This allows the same source code to be used on multiple different architectures, eliminating the need to write separate code for each one.