Asymmetric Memory Extension for Openshmem

Memory allocation in Openshmem is a global operation that requires in-step calls from all Processing Elements (PEs). Although this approach works with applications that split the work evenly, it prevents using Openshmem in cases where the workload and the memory it uses are allocated dynamically and can change significantly while the application is running. To broaden the cases where Openshmem can be used, we propose an extension -- asymmetric memory support. The extension allows PEs to allocate memory independently, and make this memory available for remote access from other PEs.