Displaying 20 results from an estimated 900 matches similar to: "Another issue using multi-processing linear algebra libraries"
2016 Aug 04
1
R, OpenBLAS and OMP_NUM_THREADS
Hi,
I was be half asleep in the heat ...
2016-08-04 0:04 GMT+09:00 Dirk Eddelbuettel <edd at debian.org>:
>
> On 3 August 2016 at 16:45, Gordon Ball wrote:
> | On 02/08/16 03:10, Ei-ji Nakama wrote:
> | > Hi,
> | >
> | > Create /etc/profile.d/openblas.sh.
> | > Write the following during in this file.
> | > OPENBLAS_NUM_THREADS = 1
> | > export
2024 Aug 07
1
Another issue using multi-processing linear algebra libraries
I also have this questions for this. I wonder if R initiates a system environment or options to instruct the packages on the number of cores to use?
It doesn't have to be mandatory for now, but at least package maintainers can have shared consensus and start to adopt this humble settings rather than abusing parallel::detectCores() to max out the number of threads by default.
> On Aug 7,
2019 Sep 04
0
possible bug in R's configure check for C++11 features
Kasper,
I haven?t checked in depth, so just to clarify: you *are* setting CXX11=g++ so it is doing what you asked it to. Since the settings are inherited upwards, this implies that you are setting both CXX14 and CXX17 to g++. So I?m not quite sure I understand your concern.
Cheers,
Simon
> On Sep 3, 2019, at 9:02 PM, Kasper Daniel Hansen <kasperdanielhansen at gmail.com> wrote:
>
2016 Dec 14
2
unexpected behaviour of search queries with mixed AND and OR
Hello,
I found out an unexpected behaviour of search queries with mixed
"AND" and "OR".
With search query "\( condA OR condB condC \)" I get an error:
Fatal: Use parenthesis when mixing ANDs and ORs
if I switch left and right OR-part and use the query
"\( condB condC OR condA \)"
I get a result, but it is not the expected result of the query
"\(
2016 Dec 14
0
unexpected behaviour of search queries with mixed AND and OR
On 14.12.2016 12:18, Juergen Raschke wrote:
> Hello,
>
>
> I found out an unexpected behaviour of search queries with mixed
> "AND" and "OR".
>
>
> With search query "\( condA OR condB condC \)" I get an error:
> Fatal: Use parenthesis when mixing ANDs and ORs
>
> if I switch left and right OR-part and use the query
> "\( condB
2019 Sep 04
2
possible bug in R's configure check for C++11 features
I am trying to compile R under a new setup, and frankly, I have had a lot
of problems, but I think the stuff below points to a possible bug in R's
(custom) configure checks for C++11/14/17, but not for C++98.
This is a report about R from the R-3-6 branch, with a svn checkout from
today, revision r77135.
In my case the compiler name is x86_64-conda_cos6-linux-gnu-g++, not g++. I
denote this
2004 Mar 26
1
Using R's LAPACK & Related files in Visual C++
I am a relative newcomer to both the R and C/C++
software worlds -- I'm taking a C Programming class
currently. I noticed the other day that the
C:\Program Files\R1_8_1\src\include\R_ext
directory on my WinXP box has the header files
BLAS.h
Lapack.h
Linpack.h
RLapack.h
I am interested in (perhaps) using one or more of
these
header files in a straight C program I'm working on in
Visual
2004 Feb 03
1
output from multcomp and lm
Dear R-users
I analysed the same data set by two different ways;
analysis of covariance by using lm and anova functions
and multiple comparison by using simtest function in
the multcomp library.
The output from the analysis of covariance is;
> y<-lm(D~Cond+Q1,data=x)
> anova(y)
Analysis of Variance Table
Response: D
Df Sum Sq Mean Sq F value Pr(>F)
Cond 2
2017 Aug 21
0
Control multi-threading in standard matrix product
Hi Ghislain,
The documentation at
https://cran.r-project.org/doc/manuals/r-release/R-admin.html#BLAS
provides a fair bit of information. What specifically would you like
to see added?
Best,
Ista
On Mon, Aug 21, 2017 at 10:13 AM, Ghislain Durif
<ghislain.durif at inria.fr> wrote:
> Hi Tomas,
>
> Thanks for your answer.
>
> Indeed, I checked and my R-3.4.1 installed from the
2016 Jul 23
0
status of the FreeBSD port/package and some questions
Hello,
Over time, the FreeBSD R port/package [1] has accumulated some cruft. We've
begun an overhaul and the process has generally been positive since most of the
local patches and workarounds are no longer necessary.
However, we still require a few workarounds.
1. Libjpeg
The autotools check for libjpeg >=6b fails even when libjpeg is present
(e.g. /usr/local/lib/libjpeg.so.8 exists).
2016 Aug 03
2
R, OpenBLAS and OMP_NUM_THREADS
On 02/08/16 03:10, Ei-ji Nakama wrote:
> Hi,
>
> Create /etc/profile.d/openblas.sh.
> Write the following during in this file.
> OPENBLAS_NUM_THREADS = 1
> export OPENBLAS_NUM_THREADS
>
> OPENBLAS_NUM_THREADS environment variable does not affect the OMP_NUM_THREADS.
>
Thanks for the response.
This works fine for R run from the command line (as does setting the
same
2017 May 04
2
complex tests failure
For a while I have been getting that the complex tests fails on RHEL 6.
The specific issue has to do with tanh (see below for full output from
complex.Rout.fail).
This is both with the stock compiler (GCC 4.4.7) and a compiler supplied
through the conda project (GCC 4.8.5). The compiler supplied through conda
ends up linking R to certain system files, so the binary is not completely
independent
2007 Feb 25
1
Repeated measures logistic regression
Dear all,
I'm struggling to find the best (set of?) function(s) to do repeated
measures logistic regression on some data from a psychology experiment.
An artificial version of the data I've got is as follows. Firstly,
each participant filled in a questionnaire, the result of which is a
score.
> questionnaire
ID Score
1 1 6
2 2 5
3 3 6
4 4 2
...
2017 Aug 21
1
Control multi-threading in standard matrix product
Hi Ista,
Maybe a little comment in the 'matmult {base}' doc page or on the
'options {base}' in the field 'matprod' would be useful to remind users
to be cautious regarding BLAS multi-threading?
I understand why this is a BLAS related issue and not directly an R
related issue. Nonetheless, my concern was for non-advanced R users,
that may don't even know what BLAS
2017 May 05
1
complex tests failure
Thanks for the report, handled in configure in 72661 (R-devel).
I'll also port to R-patched.
Best
Tomas
On 05/04/2017 03:49 PM, Tomas Kalibera wrote:
>
> There is no way to control this at runtime.
> We will probably have to add a configure test.
>
> Best,
> Tomas
>
> On 05/04/2017 03:23 PM, Kasper Daniel Hansen wrote:
>> Thanks.
>>
>> I assume there
2017 May 04
2
complex tests failure
Thanks.
I assume there is no way to control this via. environment variables or
configure settings? Obviously that would be great for something like this
which affects tests and seems to be a known problem for older C standard
libraries.
Best,
Kasper
On Thu, May 4, 2017 at 9:12 AM, Tomas Kalibera <tomas.kalibera at gmail.com>
wrote:
>
> As a quick fix, you can undefine HAVE_CTANH
2017 Aug 21
2
Control multi-threading in standard matrix product
Hi Tomas,
Thanks for your answer.
Indeed, I checked and my R-3.4.1 installed from the ubuntu repository
use 'libopenblasp-r0.2.18.so' while my R-3.3.2 that I did compiled on my
machine use 'libRblas.so' which explain the difference of behavior.
I will use RhpcBLASctl to avoid issue when combining matrix product and
other multi-threading package.
Maybe this point regarding
2016 Mar 31
0
llvmlite 0.10.0
Hello,
We are happy to release version 0.10.0 of llvmlite. llvmlite is a
light-weight Python binding for LLVM (compatible with Python 2.7 as
well as Python 3.4 and later). It stems from the needs of the Numba
community and is geared towards creating JIT compilers.
llvmlite is available both as source code and as binaries for a number
of platforms. Source code is available on PyPI and Github:
2017 May 04
0
complex tests failure
As a quick fix, you can undefine HAVE_CTANH in complex.c, somewhere
after including config.h
An internal substitute, which is implemented inside complex.c, will be used.
Best
Tomas
On 05/04/2017 02:57 PM, Kasper Daniel Hansen wrote:
> For a while I have been getting that the complex tests fails on RHEL 6.
> The specific issue has to do with tanh (see below for full output from
>
2017 May 04
0
complex tests failure
There is no way to control this at runtime.
We will probably have to add a configure test.
Best,
Tomas
On 05/04/2017 03:23 PM, Kasper Daniel Hansen wrote:
> Thanks.
>
> I assume there is no way to control this via. environment variables or
> configure settings? Obviously that would be great for something like
> this which affects tests and seems to be a known problem for older