search for: sumaya

...Optimization Approach G. Shobaki, M. Shawabkeh and N. Abu-Rmaileh ACM Transactions on Architecture and Code Optimization (TACO). vol. 10, issue 3, Article 14 (Sept. 2013) http://dx.doi.org/10.1145/2512432 Regards Ghassan Shobaki, PH.D Assistant Professor Department of Computer Science Princess Sumaya University for Technology g dot shobaki at psut dot edu dot jo -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20131116/939a8ed4/attachment.html>

...on scheduling for low power (experimenting with different algorithms for minimizing switching power) and would like to find out if anyone in the LLVM community is interested in adding this feature to LLVM. Regards Ghassan Shobaki, PH.D Assistant Professor Department of Computer Science Princess Sumaya University for Technology Amman, Jordan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130414/bf1ca8a0/attachment.html>

...is caused by a known regression in scheduling and/or allocation (which I doubt) or by the implementation (or enabling) of some new optimization(s) that naturally increase(s) register pressure? Thank you in advance! Ghassan Shobaki Assistant Professor Department of Computer Science Princess Sumaya University for Technology Amman, Jordan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130628/aa8126ee/attachment.html>

...(s) that naturally increase(s) register pressure? > There is not a particular known regression. It's not surprising that optimizations increase pressure. Andy > Thank you in advance! > > Ghassan Shobaki > Assistant Professor > Department of Computer Science > Princess Sumaya University for Technology > Amman, Jordan > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130701/3374cd63/attachment.html>

...n we test the MI scheduler by itself? Is it interesting to test 3.3 or there are interesting features that were added to the trunk after branching 3.3? In the latter case, we are willing to test the trunk. Thanks Ghassan Shobaki Assistant Professor Department of Computer Science Princess Sumaya University for Technology Amman, Jordan ________________________________ From: Andrew Trick <atrick at apple.com> To: Ghassan Shobaki <ghassan_shobaki at yahoo.com> Cc: "llvmdev at cs.uiuc.edu" <llvmdev at cs.uiuc.edu> Sent: Monday, July 1, 2013 8:10 PM Subject:...

See http://llvm.org/bugs/show_bug.cgi?id=6210. -- Sean Silva -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130415/e948b489/attachment.html>

...simulation data, but I am not aware of any actual implementation in a production compiler that proves actual energy reduction. Has anyone ever implemented and experimented with such optimizations in LLVM? Thanks Ghassan Shobaki, PH.D Assistant Professor Department of Computer Science Princess Sumaya University for Technology Amman, Jordan ________________________________ From: Sean Silva <silvas at purdue.edu> To: Ghassan Shobaki <ghassan_shobaki at yahoo.com> Cc: "llvmdev at cs.uiuc.edu" <llvmdev at cs.uiuc.edu> Sent: Monday, April 15, 2013 5:03 PM Subject...

...n’t look like my June checkins made it into 3.3. If you’re enabling MI Sched, and actually evaluating performance of the default heuristics, then it’s best to use trunk. -Andy > > Thanks > > Ghassan Shobaki > Assistant Professor > Department of Computer Science > Princess Sumaya University for Technology > Amman, Jordan > > > From: Andrew Trick <atrick at apple.com> > To: Ghassan Shobaki <ghassan_shobaki at yahoo.com> > Cc: "llvmdev at cs.uiuc.edu" <llvmdev at cs.uiuc.edu> > Sent: Monday, July 1, 2013 8:10 PM > Subje...

...X in Cycle C+Delta. Otherwise, we will be increasing the RP. Does the ILP scheduler ever make such a choice or it will always schedule an instruction when the ready list is not empty? Thank you in advance! -Ghassan  Ghassan Shobaki Assistant Professor Department of Computer Science Princess Sumaya University for Technology Amman, Jordan Attachments inlined: Rough Latencies Benchmark Branch-and-Bound LLVM SPEC Score SPEC Score % Score Difference 400.perlbench 21.2 20.2 4.95% 401.bzip2 13.9 13.6 2.21% 403.gcc 19.5 19.8 -1.52% 429.mcf 20.5 20.5 0.00% 445.gobmk 18.6 18.6 0.00% 456....

...increasing the RP. Does the ILP scheduler > ever make such a choice or it will always schedule an instruction when the ready > list is not empty? > > Thank you in advance! > -Ghassan > > Ghassan Shobaki > Assistant Professor > Department of Computer Science > Princess Sumaya University for Technology > Amman, Jordan > > Attachments inlined: > > Rough Latencies > > Benchmark Branch-and-Bound LLVM > > SPEC Score SPEC Score % Score Difference > 400.perlbench 21.2 20.2 4.95% > 401.bzip2 13.9 13.6 2.21% > 403.gcc 19.5 19.8...

...he ILP scheduler ever make such a choice or it will always schedule an instruction when the ready list is not empty? I don't believe so. Evan > > Thank you in advance! > -Ghassan > > Ghassan Shobaki > Assistant Professor > Department of Computer Science > Princess Sumaya University for Technology > Amman, Jordan > > Attachments inlined: > > Rough Latencies > > Benchmark Branch-and-Bound LLVM > > SPEC Score SPEC Score % Score Difference > 400.perlbench 21.2 20.2 4.95% > 401.bzip2 13.9 13.6 2.21% > 403.gcc 19.5 19.8 -1.52% &gt...