public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug fortran/44646] New: [F2008] Implement DO CONCURRENT
@ 2010-06-23 14:01 burnus at gcc dot gnu dot org
2010-06-23 20:43 ` [Bug fortran/44646] " tkoenig at gcc dot gnu dot org
0 siblings, 1 reply; 2+ messages in thread
From: burnus at gcc dot gnu dot org @ 2010-06-23 14:01 UTC (permalink / raw)
To: gcc-bugs
DO [,] CONCURRENT forall-header
is a special loop variant with some extra constraints; in particular, it allows
the compiler to run through the loop in any index order.
That's somewhat similar to FORALL (or at least to how FORALL is perceived) but
avoids (a) temporaries (which FORALL often requires), (b) is no assignment
feature (like FORALL) but a real loop, which allows for more things in the
loop.
First step is to implement the syntax and map DO CONCURRENT on a normal loop; I
have a embryonic patch for this.
Next step is to optimize for DO CONCURRENT (possibly thinking of automatic
parallelization during -fopenmp/-ftree-parallelize-loops, etc.)
Interpretation requests (main reason for opening this PR):
http://j3-fortran.org/doc/meeting/192/10-172.txt
http://j3-fortran.org/doc/meeting/192/10-173.txt
http://j3-fortran.org/doc/meeting/192/10-175.txt
http://j3-fortran.org/doc/meeting/192/10-176.txt
--
Summary: [F2008] Implement DO CONCURRENT
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: burnus at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44646
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug fortran/44646] [F2008] Implement DO CONCURRENT
2010-06-23 14:01 [Bug fortran/44646] New: [F2008] Implement DO CONCURRENT burnus at gcc dot gnu dot org
@ 2010-06-23 20:43 ` tkoenig at gcc dot gnu dot org
0 siblings, 0 replies; 2+ messages in thread
From: tkoenig at gcc dot gnu dot org @ 2010-06-23 20:43 UTC (permalink / raw)
To: gcc-bugs
--
tkoenig at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |tkoenig at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-06-23 20:42:48
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44646
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2010-06-23 20:43 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-06-23 14:01 [Bug fortran/44646] New: [F2008] Implement DO CONCURRENT burnus at gcc dot gnu dot org
2010-06-23 20:43 ` [Bug fortran/44646] " tkoenig at gcc dot gnu dot org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).