Dear List,

    I have some questions regarding PGAS and X10,

1) One of the goals for PGAS languages is:
 *One-sided communication for improved inter-process performance, *how is
that achieved, if I'm compiling with an x10rt of MPI flavor, which is
eventually a *Two**-sided communication.*
*
*
*2)How is the "async" implemented under the hoods? is it POSIX threads or is
it OpenMP?*
*
*
*3) X10 and Chapel are APGAS, what is the difference between APGAS and PGAS
langauges?
*
-- 
Thank you for your concern.
Regards,
Mohammed El Sayed
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