Displaying 20 results from an estimated 2155 matches for "convergance".
2015 Sep 22
2
[RFC] Refinement of convergent semantics
Hi Jingyue,
I consider it a very important element of the design of convergent that it does not require baseline LLVM to contain a definition of uniformity, which would itself pull in a definition of SIMT/SPMD, warps, threads, etc. The intention is that it should be a conservative (but hopefully not too conservative) approximation, and that implementations of specific GPU programming models
2015 Sep 04
9
[RFC] Refinement of convergent semantics
Hi all,
In light of recent discussions regarding updating passes to respect convergent semantics, and whether or not it is sufficient for barriers, I would like to propose a change in convergent semantics that should resolve a lot of the identified problems regarding loop unrolling, loop unswitching, etc. Credit to John McCall for talking this over with me and seeding the core ideas.
Today,
2012 Sep 11
1
Strange result from GAMLSS
Hi Folks! Just started using the gamlss package and I tried a simple code
example (see below). Why the negative sigma?
John
> y <- rt(100, df=1)> m1<-fitDist(y, type="realline")Warning messages:1: In MLE(ll3, start = list(eta.mu = eta.mu, eta.sigma = eta.sigma, :
possible convergence problem: optim gave code=1 false convergence
(8)2: In MLE(ll4, start = list(eta.mu =
2012 May 17
2
glm convergence warning
Hi,
When I run the following code :
Y <- c(rep(0,35),1,2,0,6,8,16,43)
cst <- log(choose(42, 42:1))
beta <- 42:1
tau <- (beta^2)/2
fit <- glm(formula = Y ~ offset(cst) + beta + tau, family = poisson)
fit
fit$converged
glm prints a warning saying that the algorithm did not converge.
However, fit$converged takes the value TRUE.
I don't understand why fit$converged is not
2020 Aug 17
2
[RFC] Introducing convergence control bundles and intrinsics
Hi Hal,
On Mon, Aug 17, 2020 at 2:13 AM Hal Finkel <hfinkel at anl.gov> wrote:
> Thanks for sending this. What do you think that we should do with the
> existing convergent attribute?
My preference, which is implicitly expressed in the review, is to use
`convergent` both for the new and the old thing. They are implicitly
distinguished via the "convergencectrl" operand
2020 Aug 09
2
[RFC] Introducing convergence control bundles and intrinsics
Hi all,
please see https://reviews.llvm.org/D85603 and its related changes for
our most recent and hopefully final attempt at putting the `convergent`
attribute on a solid theoretical foundation in a way that is useful for
modern GPU compiler use cases. We have clear line of sight to enabling a
new control flow implementation in the AMDGPU backend which is built on
this foundation. I have
2020 Aug 17
2
[RFC] Introducing convergence control bundles and intrinsics
On Mon, Aug 17, 2020 at 7:14 PM Hal Finkel <hfinkel at anl.gov> wrote:
> On 8/17/20 11:51 AM, Nicolai Hähnle wrote:
> > Hi Hal,
> >
> > On Mon, Aug 17, 2020 at 2:13 AM Hal Finkel <hfinkel at anl.gov> wrote:
> >> Thanks for sending this. What do you think that we should do with the
> >> existing convergent attribute?
> > My preference, which
2015 Aug 14
2
[LLVMdev] RFC: Convergent attribute
Hi Jingyue,
Convergent is not intended to prevent inlining. It’s tricky to formalize this inter-procedurally, but the intended interpretation is that a convergent operation cannot be move either into or out of a conditionally executed region. Normal inlining would not violate that.
I would imagine that it would make sense to use a combination of convergent and noduplicate for barrier-like
2003 Jun 10
5
bug in glm()? (PR#3223)
Full_Name: Bonnie
Version: 1.6.1
OS: Windows
Submission from: (NULL) (160.129.25.106)
glm() seems to converge, even when it shouldn't. I am trying to fit a model
where $converge=FALSE and I am fitting models that do not converge in SAS,
but they seem to converge in R ...
Thank you.
2015 Aug 14
2
[LLVMdev] RFC: Convergent attribute
Hi Mehdi,
My reading of it is that if you have a convergent instruction A, it is
legal to duplicate it to instruction B if (assuming B is after A in program
flow) A dominates B and B post-dominates A.
James
On Fri, 14 Aug 2015 at 08:32 Mehdi Amini via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> On Aug 13, 2015, at 9:43 PM, Owen Anderson via llvm-dev <
> llvm-dev at
2007 Apr 19
4
convergence
hie..
how can i write a loop that makes algorithm keeps repeating until a solution
is converged?do i use a for loop? i know that we can use for loop to ask for
a number of repetitions, but how to use it to ask the algorithm to keep
repeating until a solution is converged?
Thanks
--
View this message in context: http://www.nabble.com/convergence-tf3606834.html#a10076822
Sent from the R help
2009 Apr 01
2
Plotting multiple ablines
I really want to do this:
abline(
a=tan(-kT*pi/180),
b=kY-tan(-kT*pi/180)*kX
)
where kX,kY and kT are vectors of equal length. But I can't do that
with abline unless I use a loop, and I haven't figured out the least
unelegant way of writing the loop yet. So is there a way to do this
without a loop?
Or if I am to resort to the loop, what's the best way of doing it
considering that I
2008 Aug 21
1
rc note, etc
Are the messages below to be expected from make check-all ?
using the rc today, Aug 21, on
Red Hat Enterprise Linux AS release 4 (Nahant Update 4)
Kernel 2.6.9-42.0.8.ELsmp on an x86_64
Paul
________
....
checking package 'utils'
....
* checking R code for possible problems ... NOTE
install.packages: no visible global function definition for
?.install.winbinary?
install.packages: no
2015 Sep 14
2
[RFC] Refinement of convergent semantics
> On Sep 14, 2015, at 12:15 PM, Philip Reames <listmail at philipreames.com> wrote:
>
> On 09/04/2015 01:25 PM, Owen Anderson via llvm-dev wrote:
>> Hi all,
>>
>> In light of recent discussions regarding updating passes to respect convergent semantics, and whether or not it is sufficient for barriers, I would like to propose a change in convergent semantics that
2011 Jun 22
1
lme convergence failure within a loop
Hi R-users,
I'm attempting to fit a number of mixed models, all with the same
structure, across a spatial grid with data points collected at various
time points within each grid cell. I'm trying to use a 'for' loop to try
the model fit on each grid cell. In some cells lme does not converge,
giving me the error:
Error message: In lme.formula(logarea ~ year + summ_d, data =
2011 Jul 25
1
lme convergence error
Hello, I am working from a linux 64 machine on a server with R-2.12 (I can't
update to 2.13). I am iterating through many linear mixed models for
longitudinal data and I occasionally receive the following convergence
error:
> BI.lme <- lme(cd4 ~ time + genBI + genBI:time + C1 + C2 + C11 + C12,
random =~ 1 + time | IID, data = d)
Error in lme.formula(cd4 ~ time + genBI + genBI:time +
2005 Dec 14
2
suggestions for nls error: false convergence
Hi,
I'm trying to fit some data using a logistic function defined as
y ~ a * (1+m*exp(-x/tau)) / (1+n*exp(-x/tau)
My data is below:
x <- 1:100
y <- c(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,1,1,1,2,2,2,2,2,3,4,4,4,5,
5,5,5,6,6,6,6,6,8,8,9,9,10,13,14,16,19,21,
24,28,33,40,42,44,50,54,69,70,93,96,110,127,127,141,157,169,
2005 Nov 21
1
singular convergence with lmer function i lme4
Dear R users,
I am trying to fit a GLMM to the following dataset;
tab
a b c
1 1 0.6 199320100313
2 1 0.8 199427100412
3 1 0.8 199427202112
4 1 0.2 199428100611
5 1 1.0 199428101011
6 1 0.8 199428101111
7 0 0.8 199527103011
8 1 0.6 199527200711
9 0 0.8 199527202411
10 0 0.6 199529100412
11 1 0.2 199626201111
12 2 0.8 199627200612
13 1 0.4 199628100111
14 1 0.8
2019 Jan 25
2
Error "valor ausente TRUE/FALSE..." en doble loop FOR
Hola Carlos,
Gracias por la respuesta. phen_tot es un data frame visualizado como
tibble, y contiene (entre otras) las columnas "convergence", "r_square" y
"maxlog10mfi". Y queremos crear nuevas columnas, como "use",
"convergence_cor", etc.
phen_tot$convergence debería ser un factor de si el modelo converge o no
(levels: 1 y 2), pero tibble lo
2010 Jul 14
3
Convergent series
What are some reliable R functions that can compute the value of a
convergent series?
David
--
David R. Bickel, PhD
Associate Professor
Ottawa Institute of Systems Biology
Biochem., Micro. and I. Department
Mathematics and Statistics Department
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