Targeting problems with irregular computation and communication patterns. To demonstrate the features of the UPC language and compilers, especially Application benchmarks: The group is working on benchmarks and applications.Of shared pointer manipulation when accesses are known to be local. We are also examining optimizations based on avoiding the overhead Or a shared array with 'indefinite' blocksize (i.e., existing entirely on one Programmer uses either the default, cyclic block layout for distributed arrays, We are implementing optimizations for the common special cases in UPC where a "relaxed " consistency semantics, which can be exploited by the compiler to hideĬommunication latency by overlapping communications with computation and/or UPC allows programmers to specify memory accesses with Network communication, aggregate communication into more efficient bulk Is working on developing communication optimizations to mask the latency of Compilation techniques for explicitly parallel languages: The group.Have adopted GASNet for their PGAS networking requirements. Which currently runs over a wide variety of high-performance networks (as well Low-level, portable networking library), you should look at our GASNet library, Implementing your own global address space language (or otherwise need a UPC-specific parts our runtime layer from the networking logic. ![]() In an effort to make our code useful to other projects, we have separated the ![]() Our group has thus developed a lightweight communicationĪnd run-time layer for global address space programming languages. Most efficient hardware mechanisms available. It is therefore important that the overhead of accessing the underlyingĬommunication hardware is minimized and the implementation exploits the In order to be able to obtain good performance from an implementation, the granularity ofĪn access is often the size of the primitive C types - int, float, double). Remote data is accessed with a low granularity (i.e. Memory abstraction that it offers, UPC encourages a programming style where References to remote shared variables usually translate into calls to aĬommunication library.
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