Cray OpenSHMEMX is a proprietary SHMEM library implementation from Cray Inc.
OpenSHMEM is a Partitioned Global Address Space (PGAS) library interface specification, which is the culmination of a standardization effort among many implementers and users of SHMEM programming model. SHMEM has a long history as a parallel programming model. It is extensively used since 1993, starting from Cray T3D systems. For the past two decades SHMEM library implementation in Cray systems evolved through different generations. The current generation of the SHMEM implementation for Cray XC and XK systems is called Cray SHMEM. Cray SHMEM is a proprietary SHMEM implementation from Cray Inc., which is OpenSHMEM standards compliant.
The next evolution of OpenSHMEM implementation for current and future generation Cray systems is called Cray OpenSHMEMX.
This webpage is no longer actively maintained - please refer the following readthedocs documentation: https://cray-openshmemx.readthedocs.io/