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XcalableMP, XMP for short, is a directive-based language extension which allows users to develop parallel programs for distributed memory systems easily and to tune the performance by having minimal and simple notations.

Support typical parallelization under "global-view model"
XMP enables parallelizing the original sequential code using minimal modification with simple directives.
Support coarray to use one-sided communication easily under "local-view model"
Programmer can use coarray syntax in both XMP/Fortran and XMP/C. In particular, XMP/Fortran is designed to be compatible with Coarray Fortran.
Combination of MPI and OpenMP
In order to call an MPI program from an XMP program, XMP provides the MPI programming interface. Moreover, OpenMP directives can be combined into XMP as a hybrid programming.

NewsBacklog ≫

OCT. 24, 2014

2nd XMP Workshop in Tokyo, Japan.

Nov. 25, 2013

We are awarded the grand prize in HPC Challenge Class2. (Submitted paper and presentation are HERE).

Nov. 20, 2013

XMP specification version 1.2 is released.

About XcalableMP specification

The specification has been designed by the XMP Specification Working Group, which consists of members from academia, research laboratories, and industries. This Working Group is supported by the PC Cluster Consortium in Japan.

If you have any comments and requests, please contact to Prof. Mitsuhisa Sato (msato at cs.tsukuba.ac.jp). Your comments and contributions will be appreciated !!