search for: interchang

...> > I filed https://bugs.llvm.org/show_bug.cgi?id=47705 <https://bugs.llvm.org/show_bug.cgi?id=47705> to keep track of the issue. > > While the code for the initialization is not ideal, it appears the main issue causing the slowdown is the fact that GCC interchanges the main loops, but LLVM does not. After interchanging, the memory access patterns are completely different (and it also probably slightly defeats the purpose of the benchmark). > > There’s also an issue with SROA which splits a nice single consecutive llvm.memcpy into 3 separate ones. Wit...

Hi, When I test "matmul" in the polly directory, I get the following performance data: //=============================== --> 12. Compare the runtime of the executables time ./matmul.normalopt.exe 0:23.53 real, 23.48 user, 0.00 sys time ./matmul.polly.interchanged.exe 0:22.86 real, 22.82 user, 0.01 sys time ./matmul.polly.interchanged+tiled.exe 0:22.87 real, 22.83 user, 0.00 sys time ./matmul.polly.interchanged+tiled+vector.exe 0:22.53 real, 22.48 user, 0.02 sys time ./matmul.polly.interchanged+tiled+vector+openmp.exe 0:05.88 real, 46.71 user,...

...'0')),k:50.000817634746205,l:'4',n:'0',o:'',s:0,t:'0')),l:'2',n:'0',o:'',t:'0')),version:4 I was thinking that modern compilers are optimizing such cases very aggressively. I quickly checked gcc, there is special option -floop-interchange, but it requires properly configured gcc compiler with Graphite infrastructure enabled. I didn't have that at hand, so I just stopped right there. Loop has no side effects and arrays do not alias, so from my point of view it's safe to do interchange here. I tried different march options a...

Are IVR and "Auto Attendant" interchangeable terms? They both do the "Press 1 for" thing. Sales is asking me how to word it and I've always used both terms interchangeably.

Hi Tobias, I think that we could split a patch that contains an implementation of tiling, interchanging and unrolling of specific loops into three separate patches: 1. The first one adds a class that describes a processor model. It also adds a new command line parameter that contains all necessary parameters of a target architecture, which are used to construct objects of the class. 2. The secon...

...[Proposal][RFC] Cache aware Loop Cost Analysis > > Hi, > > This is a proposal about implementing an analysis that calculates loop > cost based on cache data. The primary motivation for implementing this is > to write profitability measures for cache related optimizations like > interchange, fusion, fission, pre-fetching and others. > > I have implemented a prototypical version at > http://reviews.llvm.org/D21124. > > I quick comment on your pass: You'll also want to add the ability to get > the loop trip count from profiling information from BFI whe...

...Loop Cost Analysis >> >> Hi, >> >> This is a proposal about implementing an analysis that calculates loop >> cost based on cache data. The primary motivation for implementing this is >> to write profitability measures for cache related optimizations like >> interchange, fusion, fission, pre-fetching and others. >> >> I have implemented a prototypical version at >> http://reviews.llvm.org/D21124. >> >> I quick comment on your pass: You'll also want to add the ability to get >> the loop trip count from profiling...

...w the analysis calculates the result). The analysis result is specific to each loop in its loop nest. Reference groups are necessary during cost computation only. > > You could probably describe how you envision this analysis would be used > with something like Loop Fusion. > For Loop Interchange, the cost calculated for each loop can provide a desired ordering of the loops. Loop interchange can start interchanging the loops to match the desired order iff interchange legality check passes. Eg: For matrix multiplication case, for (i = 0 to 5000) for (j = 0 to 5000)...

Hi Roman, On Tue, May 31, 2016 at 9:57 AM, Roman Gareev <gareevroman at gmail.com> wrote: > Hi Tobias, > > I think that we could split a patch that contains an implementation of > tiling, interchanging and unrolling of specific loops into three > separate patches: > > 1. The first one adds a class that describes a processor model. It > also adds a new command line parameter that contains all necessary > parameters of a target architecture, which are used to construct > object...

With primitive types, I can interchange literal usage and type aliases in IR: %mytype = type i32 define void @foo(%mytype* %ptr) { %t1 = load *%mytype** %ptr store i32 *%t1*, *i32** %ptr ret void } But for structs, I cannot: %mytype = type { i32, i32 } define void @foo(%mytype* %ptr) { %t1 = load *%mytype** %ptr store* {...

...against other identified types nor literal types, aka unnamed StructType(s)." ? See also; http://blog.llvm.org/2011/11/llvm-30-type-system-rewrite.html ...Takumi 2012/12/30 Justin Holewinski <justin.holewinski at gmail.com>: > With primitive types, I can interchange literal usage and type aliases in > IR: > > %mytype = type i32 > > define void @foo(%mytype* %ptr) { > %t1 = load %mytype* %ptr > store i32 %t1, i32* %ptr > ret void > } > > But for structs, I cannot: > > %mytype = type { i32, i32 } > > define voi...

Hi, This is a proposal about implementing an analysis that calculates loop cost based on cache data. The primary motivation for implementing this is to write profitability measures for cache related optimizations like interchange, fusion, fission, pre-fetching and others. I have implemented a prototypical version at http://reviews.llvm.org/D21124. The patch basically creates groups of references that would lie in the same cache line. Each group is then analysed with respect to innermost loops considering cache...

> > Great service. Hope it catches on. > > > > In time there will probably have to be some adjustments: > > > > - ratio 10/1 - this means everyone can make 10 calls for every call > donated. > > This doesn't add up in the long run. > > - I get credited 10 calls for every call I make to my own dialplan. This > > should be fixed. > > -

Hello all, I am having some difficulties after migrating the PDC from one server to another cached credentials no longer work. Users used to be able to take their laptops home and then logon using their cached domain credentials. Now when this is attempted now they get the error that the GAUACA domain is not available. All of the group policy settings are set to allow cached logons and

Okay, I''m try to support two situations "easily". I need to be able to use either ActiveRecord or ActionWebService. So I''m trying to handle this "switch" as transparently as possible. I''m totally open to suggestions.. Thanks, Jason I''m getting the following error: NoMethodError in Offer renewalController#payment_made undefined method

I have datetime (SQL) column in my DB, and I noticed whenever I retrieve that column using ActiveRecord, it returns an object of class Time instead of DateTime. Does Rails convert treat datetime and time as if they''re the same? Eric --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails:

Hi everyone, I was watching this video [1]. There's an example of an initialization loop for which Clang unfortunately generates really bad code [2]. In my machine, the Clang version is 4x slower than the GCC version. I have not tested the MSVC version, but it should be around the same. In case anyone's interested, in the video [1] Casey explains why this code is bad (around 59:39). So,

Hi,   I developed a Loop Interchange pass. Please take a look. I have not incorporate data dependence analysis check. I can insert it when the LoopDependenceAnalysis is available.   Thank you Satya -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail&...

--- On Tue, 7/13/10, Satya Jandhayala <satya_jandhayala at yahoo.com> wrote: From: Satya Jandhayala <satya_jandhayala at yahoo.com> Subject: LoopInterchange Pass To: llvmdev at cs.uiuc.edu Date: Tuesday, July 13, 2010, 12:06 PM Hi,   I developed a Loop Interchange pass. Please take a look. I have not incorporate data dependence analysis check. I can insert it when the LoopDependenceAnalysis is available.   Thank you Satya ------------...

Hello, I am trying to run a simple foxpro application. All the program does is look up serial numbers and then look up pictures from an image directory. The directory structure looks like this: FOXUSER.DBF INTERCHANGE.CDX interchange.exe irunin.lng FOXUSER.FPT INTERCHANGE.CRB irunin.dat sierra.ico Images INTERCHANGE.DBF irunin.ini The program installs correctly; however, the pictures are not displayed. The only messages displayed on startup are: fixme:system:SystemParametersInfoW Unimplement...