Displaying 20 results from an estimated 400 matches similar to: "[GSoC 2016] Implementation of the packing transformation"
2016 Jun 29
0
[GSoC 2016] Implementation of the packing transformation
On 06/28/2016 10:53 AM, Roman Gareev wrote:
> 2016-06-27 15:52 GMT+05:00 4lbert C0hen <4lbert.h.c0hen at gmail.com>:
>> Dear Roman and all,
>>
>> Such features would be extremely useful to implement array expansion (scalar
>> and array renaming, privatization with new subscript expressions of higher
>> dimension) and storage mapping optimization (generalizing
2010 Oct 13
5
Poisson Regression
Hello everyone,
I wanted to ask if there is an R-package to fit the following Poisson
regression model
log(\lambda_{ijk}) = \phi_{i} + \alpha_{j} + \beta_{k}
i=1,\cdots,N (subjects)
j=0,1 (two levels)
k=0,1 (two levels)
treating the \phi_{i} as nuinsance parameters.
Thank you very much
--
-Tony
[[alternative HTML version deleted]]
2012 Oct 03
2
[LLVMdev] [RFC] OpenMP Representation in LLVM IR
Hal,
> While I think that it will be relatively easy to have the intrinsics
> serve as code-motion barriers for other code that might be threads
> sensitive (like other external function calls), we would need to think
> through exactly how this would work. The easiest thing would be to make
> the intrinsics have having unmodeled side effects, although we might
> want to do
2012 Nov 06
2
[LLVMdev] [RFC] OpenMP Representation in LLVM IR
Andrey,
Are you still working on this?
Thanks again,
Hal
----- Original Message -----
> From: "Hal Finkel" <hfinkel at anl.gov>
> To: "Andrey Bokhanko" <andreybokhanko at gmail.com>
> Cc: llvmdev at cs.uiuc.edu
> Sent: Wednesday, October 10, 2012 12:19:32 AM
> Subject: Re: [LLVMdev] [RFC] OpenMP Representation in LLVM IR
>
>
>
>
2016 May 28
1
Determination of statements that contain only matrix multiplication
Sorry for not responding earlier.
On 05/20/2016 03:05 PM, Roman Gareev wrote:
> Thank you very much for the advices! I could probably try to avoid
> using of nonhardware prefetching in the project, if Tobias doesn’t
> disagree with it. My understanding is that prefetching isn’t used
> explicitly in [1] and, according to [2], in some cases 90% of the
> turbo boost peak of the
2012 Oct 10
0
[LLVMdev] [RFC] OpenMP Representation in LLVM IR
----- Original Message -----
> From: "Andrey Bokhanko" <andreybokhanko at gmail.com>
> To: "Hal Finkel" <hfinkel at anl.gov>
> Cc: llvmdev at cs.uiuc.edu
> Sent: Wednesday, October 3, 2012 3:15:54 AM
> Subject: Re: [LLVMdev] [RFC] OpenMP Representation in LLVM IR
>
> Hal,
>
> > While I think that it will be relatively easy to have the
2012 Nov 07
0
[LLVMdev] [RFC] OpenMP Representation in LLVM IR
Hal,
Our proposal is effectively got scrapped by the community, so we are
not pushing any further on the approach we proposed before.
How about meeting at the LLVM conference to discuss this?
Yours,
Andrey
On Mon, Nov 5, 2012 at 11:05 PM, Hal Finkel <hfinkel at anl.gov> wrote:
> Andrey,
>
> Are you still working on this?
>
> Thanks again,
> Hal
>
> ----- Original
2011 Jul 13
1
Plotting parametrized curves (2D or 3D)
The curve() function plots an expression in x over an interval [from,to]. I
am looking for a function that would allow me to plot a parametrized curve
t -> x(t) where x is a vector in 2 or 3 dimensions.
For example (cos(t), sin(t)) (a2D circle) or (cos(t), sin(t), t) (a 3D
helix). It seems that neither curve(), plot(), nor persp() are helpful for
that particular problem. I bet I?m not the
2019 Jul 29
2
Efficient way to identify an instruction
Hi Alberto,
I have not used this myself, but I think you should be able to visit your Instruction ‘users()’. I think the name this function was given is a bit confusing, but this returns an iterator range you can iterate through to find instructions that depend on a given one.
Similarly, you have the function ‘uses()’ that can be used to traverse down the DAG when instructions are still on SSA
2010 Dec 03
3
book about "support vector machines"
Dear all,
I am currently looking for a book about support vector machines for
regression and classification and am a bit lost since they are plenty of
books dealing with this subject. I am not totally new to the field and
would like to get more information on that subject for later use with
the e1071 <http://cran.r-project.org/web/packages/e1071/index.html>
package for instance. Does
2012 Oct 02
0
[LLVMdev] [RFC] Parallelization metadata and intrinsics in LLVM (for OpenMP, etc.)
Andrey Bokhanko <andreybokhanko at gmail.com> writes:
> There are three ways to make this work correctly:
>
> 1) Ignore OpenMP-related intrinsics and associated metadata. Least
> effort, least benefit (no OpenMP support). Yet, OpenMP programs
> compiled correctly, as if no pragmas are present -- including *exactly
> the same* number of routines and call graph (thanks to no
2010 Jun 29
1
Model validation and penalization with rms package
I?ve been using Frank Harrell?s rms package to do bootstrap model
validation. Is it the case that the optimum penalization may still
give a model which is substantially overfitted?
I calculated corrected R^2, optimism in R^2, and corrected slope for
various penalties for a simple example:
x1 <- rnorm(45)
x2 <- rnorm(45)
x3 <- rnorm(45)
y <- x1 + 2*x2 + rnorm(45,0,3)
ols0 <- ols(y
2007 Jul 11
2
RWeka control parameters classifiers interface
Hello,
I have some trouble in achieving the desired parametrisation
for the weka classifier functions, using the package RWeka.
The problem is, that the functions
result=classifier(formula, data, subset, na.action, control = Weka_control(mycontrol))
do not seem to be manipulated by the mycontrol- arguments
Perhaps this should be resepected via the handlers- argument ,
but the
2016 May 17
4
Determination of statements that contain only matrix multiplication
On 05/17/2016 01:47 PM, Michael Kruse wrote:
> 2016-05-16 19:52 GMT+02:00 Roman Gareev <gareevroman at gmail.com>:
>> Hi Tobias,
>>
>> could we use information about memory accesses of a SCoP statement and
>> def-use chains to determine statements, which don’t contain matrix
>> multiplication of the following form?
>
> Assuming s/don't/do you want
2006 Apr 18
2
Unfound objects in function
A couple of my functions that were working last week seem to have been
changed over the weekend and no longer work, but I can't understand why
not: it seems that objects defined at the start of the function are not
located further on in the function, when this worked fine before. An
example follows at the end, using the package spatstat, though the
problem seems more general. My only guess is
2007 Aug 01
1
RWeka cross-validation and Weka_control Parametrization
Hello,
I have two questions concerning the RWeka package:
1.) First question:
How can one perform a cross validation, -say 10fold- for a given data set and given model ?
2.) Second question
What is the correct syntax for the parametrization of e.g. Kernel classifiers interface
m1 <- SMO(Species ~ ., data = iris, control =
2016 May 20
0
Determination of statements that contain only matrix multiplication
2016-05-19 21:45 GMT+05:00 4lbert C0hen <4lbert.h.c0hen at gmail.com>:
> One short note. I would advise against spending time on prefetching for x86.
> Recent hardware prefetchers are amazingly good at strided accesses in
> single-threaded code. Caution: this is not based on objective/published
> data, but on personal experience.
>
> There are open challenges in
2012 Oct 02
4
[LLVMdev] [RFC] Parallelization metadata and intrinsics in LLVM (for OpenMP, etc.)
Chris,
> My comment was mostly in response to the Intel proposal, which effectively translates OpenMP pragmas directly into llvm intrinsics + metadata. I can't imagine a way to make this work *correctly* without massive changes to the optimizer.
There are three ways to make this work correctly:
1) Ignore OpenMP-related intrinsics and associated metadata. Least
effort, least benefit (no
2009 Mar 03
1
[LLVMdev] One way to support unwind on x86
Hi Bjarke,
Bjarke Walling wrote:
> I see. So you check this value stored in a thread-local variable after
> each call? And you lower invoke to a call and branch with regard to
> this value?
>
Yes, that's correct.
> What are these sophisticated techniques you are talking about? My time
> frame for implementing this is, not unlimited, but fairly long. Less
> than a
2007 Sep 19
3
ZFS panic when trying to import pool
I have a raid-z zfs filesystem with 3 disks. The disk was starting have read and write errors.
The disks was so bad that I started to have trans_err. The server lock up and the server was reset. Then now when trying to import the pool the system panic.
I installed the last Recommend on my Solaris U3 and also install the last Kernel patch (120011-14).
But still when trying to do zpool import