![]() ![]() ![]() Remote atomics use an abstraction that enables efficient offload where hardware support is available.ĭistributed objects. Including acceleration of GPU memory transfers via RDMA offload on compatible hardware.įuture releases will continue to refine this capability. UPC++ provides uniform interfaces for RMA transfers among host and device memories, UPC++ uses a continuation-based model to express task dependencies. Futures are central to handling asynchronous operation of RMA and RPC. UPC++ provides asynchronous Remote Procedure Call for running code (including C++ lambdas) on other processes.įutures, promises and continuations. Put and Get) for movement of data among processes. UPC++ provides asynchronous one-sided communication (Remote Memory Access, a.k.a. UPC++ encourages the use of scalable data-structures and avoids non-scalable library features. Most operations are non-blocking, and the powerful synchronization mechanisms encourage applications to design for aggressive asynchrony.Īll communication is explicit - there is no implicit data motion. ![]() These changes reflect a design philosophy that encourages the UPC++ programmer to directly express what can be implemented efficiently (ie without a need for parallel compiler analysis). However, there are departures from the approaches taken by some predecessors such as UPC. UPC++ exposes a PGAS memory model, including one-sided communication (RMA and RPC). It leverages GASNet-EX to deliver low-overhead, fine-grained communication, including Remote Memory Access (RMA) and Remote Procedure Call (RPC). UPC++ is a C++ library that supports Partitioned Global Address Space (PGAS) programming, and is designed to interoperate smoothly and efficiently with MPI, OpenMP, C++/POSIX threads, CUDA, ROCm/HIP and other HPC frameworks. See what real users have to say about UPC++!.Includes Pagoda group publications and citation information for the documentation.Extended example codes and tutorial materials.Optional extensions, including a new dist_array class template for scalable distributed arrays.Formal specification of the UPC++ library interface.Also available online as a single HTML page.A gentle introduction to UPC++ with examples and descriptions.See README.md, ChangeLog.md, and INSTALL.md.Note: Usage information for public installs of UPC++ at certain computing centers.Contains everything you need to start using UPC++ on supported platforms.Nov 15, 2021: UPC++ Tutorial at SC21 - now available on-demand!Ī UPC++ Training site is now available, including video tutorials! The exascale successor to the widely used NWChem computational chemistry library now includes support for UPC++-based communication in their critical Tensor Algebra for Many-body Methods (TAMM) module!.Adds support for accelerated RMA transfers of GPU memory on HPE Cray EX systems (both Slingshot-10 and Slingshot-11 networks both Nvidia and AMD GPUs).Sept 30, 2022: A new UPC++ 2022.9.0 release is now available for download! ![]()
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