Runtime System

The STAPL Runtime System (RTS) is the runtime system of STAPL that provides platform abstraction and portable performance for the rest of the components of STAPL. More...

Collaboration diagram for Runtime System:

Modules
	Adaptive Remote Method Invocation (ARMI)
	Parallelism, communication and synchronization support.
	Serialization
	Support for packing/unpacking of arbitrary types.
	Executors
	stapl::paragraph_impl::paragraph task execution support.
	Counters
	Hardware counters support.
	Instrumentation
	Runtime System and application instrumentation support.
	Runtime System implementation
	Support functions and classes for the STAPL Runtime System (RTS).

Detailed Description

The STAPL Runtime System (RTS) is the runtime system of STAPL that provides platform abstraction and portable performance for the rest of the components of STAPL.

The STAPL Runtime System (RTS) provides support for, and abstracts, parallel processing for different parallel architectures (e.g., clusters, Cray Supercomputer, IBM Supercomputers and others), and for different parallel paradigms (e.g., C++11 threads, OpenMP, MPI) that would generally be used to run on such architectures.

Essentially, the RTS provides all the tools a developer needs to express parallelism. Most of STAPL's components, such as pContainers, pViews, PARAGRAPH, rely heavily on the RTS. Details of parallel execution are handled by the run-time system, allowing other components to cleanly express a given concept.

Currently, the RTS contains the following main components:

1. Adaptive Remote Method Invocation (ARMI), the Adaptive Remote Method Invocation primitives that are designed to abstract communication and synchronization,
2. Serialization that allows the transport of C++ objects seemlessly when doing communication,
3. Executors that handle the execution of tasks that are deemed runnable from the PARAGRAPH,
4. Counters that abstract platform specific counters, such as wall-clock timers, cache miss/hit counters and others and
5. Instrumentation that provides hooks to tools such as TAU, Vampir, MPE and others for instrumenting STAPL code.