search for: overestimated

Hi folks, Warning: I don't know if the result I am getting makes sense, so this may be a statistics question. The fitted values from my binomial lmer mixed model seem to consistently overestimate the cell means, and I don't know why. I assume I am doing something stupid. Below I include code, and a binary image of the data is available at this link:

...), and a truncate (output); these all fold alway. With an intrinsic, you'd end up with a better estimate; however, I'm trying to see what problems we would encounter without intrinsics, and I think this is the biggest one. Note that AFAICT, costs for min/max patterns (icmp+iselect) are also overestimated, but not as much as saturate. Proposal: Add a method, part of the vector API of TargetTransformInfo, for multi-instruction cost computation. It would take a scalar Instruction, and a reference to a set of Instruction. If it's able to match a min/max/saturate/.., it adds all the matched ins...

Hello, I have a question about persp function: I made my classical matrix with x, y and z variables and I dont know why I obtain a 3D image with overestimate heights. Here is my script: microtopo = read.csv2("topo2.csv", dec=".") attach(microtopo) require(akima) # for persp or zz <-interp (x, y, z) persp(zz) See also my attach file Thanks, Best regards JS

..._skinny as it seems to be generally underused. (Is functionality identical across both firmwares?) However, I've come across a couple of showstoppers and am not really sure where to go from here. I've raised bugs for both of them (#17680, #17692) and had no response so far - have I perhaps overestimated how much chan_skinny is in use these days, or do I need to follow another route? I'm not an Asterisk developer but am happy to spend some time this week resolving the problems. Unfortunately I need the phones next week, so may have to end up taking the defeatist approach of switching to the SI...

There’s a few passes in LLVM that make heavy use of a big DenseMap, one that potentially gets filled with up to 1 entry for each instruction in the function. EarlyCSE is the best example, but Reassociate and MachineCSE have this to some degree as well (there might be others?). To put it simply: at least in my profile, EarlyCSE spends ~1/5 of its time growing DenseMaps. This is kind of… bad.

...mall subsets of languages, for instance on my Ubuntu 12.04, this file is only ~3MB. I still don't get the reason, but CentOS x86_64 6.2 (and 6.3) mmappes the *entire* file: $ pmap $$ 00007f217fae4000 96836K r---- /usr/lib/locale/locale-archive Consequence: every processes that use glibc is overestimated by ~100MB (according to the virtual memory). That, alone, is not a problem at all. It is known that the virtual memory is a bad estimation of the actual memory used, the fact that it is largely overestimated does not matter much in most cases. The problem, however, is that if you deal with a comp...

Thanks Reid - I'm on Windows. I guess I just assumed I was missing something obvious in how to hook up the JIT and disassembler! Given the nice looking disassembly code I found, I thought people would be doing it all the time :-) b. On Tue, Jul 6, 2010 at 8:41 PM, Reid Kleckner <reid.kleckner at gmail.com> wrote: > If you're on a recent flavor of Linux, you may be able to just

Hello, I've been trying to add support to the integrated assembler to handle cases like below foo:instr; .if . - foo; instr; .endif when the dot symbol and foo are assigned to consecutive MCDataFragments <https://github.com/ClangBuiltLinux/linux/issues/744>. I have a patch <https://reviews.llvm.org/D6941> under review. And even though it seems to solve the problem, the concern

> In the insrtuction > %1 = load i32** %y_addr, align 4 > what is the meaning of align 4?? > Can anyone explain? >From http://llvm.org/docs/LangRef.html#i_load : "The optional constant align argument specifies the alignment of the operation (that is, the alignment of the memory address). A value of 0 or an omitted align argument means that the operation has the preferential

Anton Korobeynikov wrote: >> In the insrtuction >> %1 = load i32** %y_addr, align 4 >> what is the meaning of align 4?? >> Can anyone explain? >> > >From http://llvm.org/docs/LangRef.html#i_load : > > "The optional constant align argument specifies the alignment of the > operation (that is, the alignment of the memory address). A value of 0

Hello, I have some C code (for a shared lib called via .External) that uses PROTECT(w= allocMatrix(REALSXP, m, n)); mostly successfully. In rare cases, though, the row count m will be an overestimate. Is there a way to reallocate the matrix in-place, something like reAllocMatrix (w,m-excess,n) /* where excess is > 0 */ to chop off the last excess rows of w? I only find out about the

If you're on a recent flavor of Linux, you may be able to just go into gdb and type "disas <pointer-to-JITed-code>". More detail here: http://llvm.org/docs/DebuggingJITedCode.html If you still want to do it programmatically, I think you might be stuck. IIRC the length known by the JIT memory allocator is an overestimate (it's rounded up for alignment), so the

In the insrtuction %1 = load i32** %y_addr, align 4 what is the meaning of align 4?? Can anyone explain? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100716/ef433d43/attachment.html>

What should we use instead of DenseMap? —escha > On Mar 15, 2016, at 3:30 PM, Xinliang David Li <xinliangli at gmail.com> wrote: > > yes it makes sense. Avoid using DenseMap when the size of the map is expected to be large but can not be pre-determined. > > David > > On Tue, Mar 15, 2016 at 3:07 PM, via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at

I have a small model running under R. This is basically running various power-law relations on a variable (in this case water level in a river) changing spatially and through time. I'd like to include some kind of error propagation to this. My first intention was to use a kind of monte carlo routine and run the model many times by changing the power law parameters. These power laws were

Hi, With the new llvm-mc code for disassembling, what is the recommended way to disassemble the final code produced by a JIT compiler backend? (Eg. in the toy.cpp example from the tutorial). I can get the void* for the final code, but I don't know its length - superficially at least it appears I need to know the length to disassemble it as a buffer? Thanks b.

Hi R-helpers, Does anyone know why adding which() makes the select call more efficient than just using logical selection in a dataframe? Doesn't which() technically add another conversion/function call on top of the logical selection? Here is a reproducible example with a slight difference in timing. # Surrogate data - the timing here isn't interesting urltext <-

Hi, I am trying to get the maximum likelihood estimator for lognormal distribution with censored data;when we have left, interval and right censord. I built my code in R, by writing the deriving of log likelihood function and using newton raphson method but my estimators were too high " overestimation", where the values exceed the 1000 in some runing of my code. is there any one can

...ra_headers:0 Page #2: 1 packets. Page #3: 45 packets. Page #4: 45 packets. Page #5: 45 packets. Page #6: 45 packets. Page #7: 45 packets. Page #8: 45 packets. Pages: 8 Packets: 272 Calculating things per hand here 6*45 speex frames, so the speech length should be 5.4 seconds. Unfortunately this is overestimated: $ time speexdec spfe49_1-small.spx Decoding 44100 Hz audio using ultra-wideband (sub-band CELP) mode (stereo) Encoded with Speex 1.1.12 real 0m3.992s user 0m0.112s sys 0m0.020s So my questions are: What does the "frame_size: 640" mean (the information was simply read out wit...

On Wed, Dec 18, 2019 at 3:38 AM Iurii Gribov via llvm-dev < llvm-dev at lists.llvm.org> wrote: > (Readding Hal) > > > Are you suggesting that we should be more aggressive by default (i.e. > without -fvisibility=hidden or any new options)? > > I believe that will be too aggressive for class LTO visibility. > > It is common to override a virtual functions across