Abstract: Implementations of the present disclosure include receiving object-oriented source code including a set of kernel functions and a set of invocations, each invocation invoking one or more kernel functions, each kernel function being marked within the source code as being GPU-enabled and referencing a information object and a grid configuration object, the grid information object defining a number of threads for executing the kernel function within the GPU, and the grid configuration object defining a configuration of threads for executing the kernel function within the GPU, the source code capable of being compiled to one of binary code that is executable by a CPU and binary code that is executable by a GPU without modification, compiling the object-oriented source code to provide binary code that is executable by a GPU, and executing the binary code using the GPU to execute the kernel function within an in-memory database system.