Section: New Software and Platforms

Implementing parallel models

Several software platforms have served us to implement and promote our ideas in the domain of coarse grained computation and application structuring.

ORWL and P99

Participants : Jens Gustedt, Stéphane Vialle [External collaborator, SUPELEC] , Mariem Saied.

ORWL is a reference implementation of the Ordered Read-Write Lock tools as described in [4] . The macro definitions and tools for programming in C99 that have been implemented for ORWL have been separated out into a toolbox called P99. ORWL is intended to become opensource, once it will be in a publishable state. P99 is available under a QPL at http://p99.gforge.inria.fr/ .

Software classification: A-3-up, SO-4, SM-3, EM-3, SDL (P99: 4, ORWL: 2-up), DA-4, CD-4, MS-3, TPM-4

parXXL

Participants : Jens Gustedt, Stéphane Vialle [External collaborator, SUPELEC] .

ParXXL is a library for large scale computation and communication that executes fine grained algorithms on coarse grained architectures (clusters, grids, mainframes). It has been one of the software bases of the InterCell project and has been proven to be a stable support, there. It is available under a GPLv2 at http://parxxl.gforge.inria.fr/ . ParXXL is not under active development anymore, but still maintained in the case of bugs or portability problems.

Software classification: A-3, SO-4, SM-3, EM-2, SDL-4, DA-4, CD-4, MS-2, TPM-2

musl

Participant : Jens Gustedt.

musl is a re-implementation of the C library as it is described by the C and POSIX standards. It is lightweight, fast, simple, free, and strives to be correct in the sense of standards-conformance and safety. Musl is production quality code that is mainly used in the area of embedded device. It gains more market share also in other area, e.g. there are now Linux distributions that are based on musl instead of Gnu LibC.

In 2014, we have added an implementation of the new thread interface that had been defined in the recent C11 standard.