search for: imperfect

...r potential for improving code performance > than scalar optimizations, and should be given priority over them. In > most cases (excluding loop interchange, for example), the LICM > opportunity will remain, and can be taken care of later. > Yes, LICM will make perfect nesting become imperfect. When I define pre-ipo pass, I also take this into account as well. I think for a while, and are not able to figure out any strong reason for running or not running LICM in pre-ipo pass, or other compilation phase before LNO. The pro for running LICM early is that it may move big redundant s...

...is sound >> to be a big win for control-intensive programs where Loop-nest-opt normally is a big, expensive no-op. >> >> The con side is that, as you said, the nest is not perfect any more. However, I would argue LNO optimizations >> should be able to tackle the cases when imperfect part is simple enough (say, no call, no control etc). >> (FYI, Open64's LNO is able to tackle imperfect nesting so long as imperfect part is simple). Or you just reverse >> the LICM, that dosen't sound hard. > > FWIW, I completely agree with this. The canonical form shou...

...ntrol-intensive programs where Loop-nest-opt >>> normally is a big, expensive no-op. >>> >>> The con side is that, as you said, the nest is not perfect any >>> more. However, I would argue LNO optimizations >>> should be able to tackle the cases when imperfect part is simple >>> enough (say, no call, no control etc). >>> (FYI, Open64's LNO is able to tackle imperfect nesting so long as >>> imperfect part is simple). Or you just reverse >>> the LICM, that dosen't sound hard. >> >> FWIW, I complete...

...ptimizations. This sound > to be a big win for control-intensive programs where Loop-nest-opt normally is a big, expensive no-op. > > The con side is that, as you said, the nest is not perfect any more. However, I would argue LNO optimizations > should be able to tackle the cases when imperfect part is simple enough (say, no call, no control etc). > (FYI, Open64's LNO is able to tackle imperfect nesting so long as imperfect part is simple). Or you just reverse > the LICM, that dosen't sound hard. FWIW, I completely agree with this. The canonical form should be that loop i...

Hi all! I'm new to this forum so please excuse me if I don't conform perfectly to the protocols on this board! I'm trying to get an estimate of true prevalence based upon results from an imperfect test. I have various estimates of se/sp which could inform my priors (at least upper and lower limits even if with a uniform distribution) and found the following code on this website.. http://www.lancs.ac.uk/staff/diggle/prevalence_estimation.R/ (the folllowing code has been cut and pasted direc...

I am using R to teach, and here are a couple of things that I thought would work didn't work. 1. I noticed the utility data(***,package=***) recently and like it very much, but unless I type in the whole word "package" I'll get an error in 1.4.0. For example, data(cats,package=MASS) works fine but data(cats,pac=MASS) doesn't. 2. drop1 doesn't seem to be as smart as

...t. If each L.N.O pass have to fix by itself, I would say this LNO component is pretty lame. IMHO, It is natural to run a preparation pass to shape the loop nests into a shape such that following LNO optimizers feel comfortable to kick in. Such preparation/fix pass should include getting rid of imperfect part, fusion, fission on individual nests or the neighboring nests, at appropriate nest level. In theory, you are always possible to get rid of imperfect part by tugging them into the loop with a condition like "if "iv == 1st iteration", or if possible you can distribute the impe...

On 7/31/2013 12:20 PM, Chris Lattner wrote: > On Jul 31, 2013, at 6:53 AM, Krzysztof Parzyszek > <kparzysz at codeaurora.org <mailto:kparzysz at codeaurora.org>> wrote: >> On 7/30/2013 11:44 PM, Chris Lattner wrote: >>> >>> The canonical form should be that loop invariants are hoisted. >> >> The canonical form should not depend on the knowledge

I have rails 1.0 and I cannot install rails-1.1 system-wide. However, I can freeze_edge (but just once because of svn 1.1.4 on Debian). Under this scenario, how can I create brand new rails-1.1 apps? I know how to freeze_edge *existing* rails-1.0 apps but that process seems to be imperfect because the script/about command and /rails/info/properties URL do not work after freezing to 1.1.0 release or revision 4142. -- Posted via http://www.ruby-forum.com/.

...rams where Loop-nest-opt >>>> normally is a big, expensive no-op. >>>> >>>> The con side is that, as you said, the nest is not perfect any >>>> more. However, I would argue LNO optimizations >>>> should be able to tackle the cases when imperfect part is simple >>>> enough (say, no call, no control etc). >>>> (FYI, Open64's LNO is able to tackle imperfect nesting so long as >>>> imperfect part is simple). Or you just reverse >>>> the LICM, that dosen't sound hard. >>> >&...

...k quality report and on the track I kept trying to rip it reported 99.4% integrity, however the end result is a perfectly encoded MP3 with no artifacts. I used a different CD as a test platform, one that was near flawless, and I have yet to detect any artifacts created. But being that ripping from imperfect CDs is a fact of life, does this hinder Oggs application? Does Ogg properly handle artifacts in the source, contrary to what I'm seeing? I can understand clipping coming across when the source has difficulty reading the song, but it is actually amplifying the artifact when LAME doesn't even...

I think all the common distros have pretty much stopped caring (if they ever did) about allowing users to reasonably operate their default environments with hardware that has imperfect 3D drivers. Please use environments that don't require 3D for regular operation on such boards. -ilia On Tue, May 30, 2017 at 7:36 PM, adlo <adloconwy at gmail.com> wrote: > In order to get a clear image on your screen so that you can test this, you > may need to set your displ...

On Tue, Jul 28, 2015 at 6:32 PM, Warren Young <wyml at etr-usa.com> wrote: > On Jul 28, 2015, at 4:37 PM, Nathan Duehr <denverpilot at me.com> wrote: >> Equating this to ?vaccination? is a huge stretch. > > Why? It's not just an imperfect analogy it really doesn't work on closer scrutiny. Malware itself is not a good analog to antigens. Vaccinations provide immunity to only certain kinds of antigens, and only specific ones at that. Challenge-Response, which is what a login password is, is about user authentication it is not at...

Hi all, I have some probleem detecting DTMF send by a GSM phone, I'm using SIP with ulaw. do you know what are the options to improve the detection ? I'm using asterisk 1.05, is the CVS HEAD version had some improvement about DTMF detection? Florian.

...ld be SCEVable. But more importantly, SCEV Delinearization is trying to deduce something that is high-level (actually source-level) from a low-level IR in which a lot of this info has been lost. So, since there's not a 1-1 mapping from high-level code to LLVM IR, going backwards will always be imperfect. And so since you are too trying to deduce a high-level thing, I believe that any solution will be imperfect. Best, Stefanos On Sat, Oct 3, 2020, 02:55 Ees via llvm-dev <llvm-dev at lists.llvm.org> wrote: > Anyone? I'd really appreciate any hints to look up as i'm somewhat stuc...

...ough metadata, much like the sampling based approach, but it happens during irgen in the front end, rather than in a backend pass. While it might be possible to translate the instrumentation format to the profile format, it wouldn't be possible to go the other way, and the translation would be imperfect. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20140313/7330fd9f/attachment.html>

Thank you, those links were indeed helpful. It appears to me that while JumpCloud.com touts it's Samba compatibility (including "Samba Schema support"), their's is an imperfect implementation. Because they do not leverage the Samba group objectclass they are hampering Samba's ability. The method they've used to implement groups does not allow those groups to be used by Samba. I'm no expert on LDAP, but I believe the addition of an attribute on their groupOfNa...

...m-dev at lists.llvm.org> wrote: > On Mon, Nov 16, 2015 at 10:03 AM, James Molloy via llvm-dev > <llvm-dev at lists.llvm.org> wrote: > > You don't appear to have addressed my suggestion to not require a perfect > > external world, instead to measure the overhead of an imperfect world (by > > using an empty benchmark) and subtracting that from the measured > benchmark > > score. > > In microbenchmarks, performance is not additive. You can't compose > two pieces of code and predict that the benchmark results will be the > sum of the individua...

Hi Richard, You don't appear to have addressed my suggestion to not require a perfect external world, instead to measure the overhead of an imperfect world (by using an empty benchmark) and subtracting that from the measured benchmark score. Besides which, absolute benchmark results are more than often totally useless - the really important part of benchmarking is relative differences. Certainly in my experience I've never needed to care ab...

...mportantly, SCEV Delinearization is trying to deduce something >> that is high-level (actually source-level) from a low-level IR in which a >> lot of this info has been lost. So, since there's not a 1-1 mapping from >> high-level code to LLVM IR, going backwards will always be imperfect. >> >> And so since you are too trying to deduce a high-level thing, I believe >> that any solution will be imperfect. >> >> Best, >> Stefanos >> >> On Sat, Oct 3, 2020, 02:55 Ees via llvm-dev <llvm-dev at lists.llvm.org> >> wrote: >&gt...