The Eden System: A Technical Review

Democratizing Transactional Programming

“…The programmability of transactions has subsequently been studied in distributed systems in various forms, e.g., Argus [5], Eden [6] and ACS [7]. During that period, the first hardware support for such a transactional construct was invented to introduce parallelism in functional languages by providing synchronization on multiple memory words [8].…”

The development of the Emerald programming language

“…Emerald forms a branch in a distributed systems research tree that began with the Eden project [3] at the University of Washington in 1979. Setting the context for Emerald requires some understanding of Eden and also of technology at that time.…”

“…The straightforward version was timed when compiled both with and without the C optimizer. We compared execution times for two pairs of parameter values, namely (6,3) and (7,3). Table 6 shows the timings along with the relative difference in execution times normalized to the optimized C version.…”

Generalized Portable SHMEM Library for High Performance Computing

“…An object asso ciated with a pointer created by SHP ALLOC routine is considered to be symmetric and thus can be used in SHMEM calls. Below is a more complete, although rather trivial, example of using Cray pointers and dynamic memory allocation: 4 The GPSHMEM API reference GPSHMEM strives to provide equivalent functionality to SHMEM with an identical interface. During the design and later the implementation of GPSHMEM we strove to maintain as much compatibility with SHMEM as possible.…”

“…In other words, multidimensional arrays in C (and in C++) are just arrays of arrays. In consequence, given the declaration above, an expression foo [2] is perfectly valid and denotes an element of type int [4]. Assume that we have an equivalent declaration in Fortran:…”