similar to: Gaining access to complex LAPACK functions

Displaying 20 results from an estimated 10000 matches similar to: "Gaining access to complex LAPACK functions"

2008 Jun 13
2
compiling 2.7.0 GNU/Linux | BLAS & Lapack query
Greetings - For a host of reasons I chose (was forced) to upgrade my multi-Opteron box from Fedora 7 -> Fedora 8. In the process, I also updated the ACML I had installed from 4.0.0 to 4.1.0. While I get no errors (that I can find) in the config -> make -> make install sequence, I'm pretty sure (based on some benchmarks) that I'm not getting BLAS and/or Lapack to compile in. So,
2007 Apr 11
1
Calling LAPACK functions directly from R
I am interested in tapping into LAPACK functionality directly from R. Using R-2.4.1 for Windows, I was able to do so ala: dyn.load("bin/Rlapack.dll") is.loaded("dstebz") # returns TRUE N <- 100 NW <- 4 n.tapers <- 5 tpW <- (2 * pi * NW)/N otNmo <- 1:N D <- as.double(cos(tpW) * ((N - 1 - 2 * (0:(N - 1)))/2)^2) E <- as.double((otNmo * (N - otNmo))/2) z
2008 Apr 03
1
Lapack error in Design:::ols
Hi, I'm trying to use Frank Harrell's Design:::ols function to do regression of y (numeric) on the interaction of two factors (x1 and x2), but Lapack throws an error: > library(Design) ... > load(url("http://www.csse.unimelb.edu.au/~gabraham/x")) > ols(y ~ x1 * x2, data=x) Error in chol2inv(fit$qr$qr) : 'size' cannot exceed nrow(x) = 20 > traceback()
2007 Mar 29
1
Using functions in LAPACK in a C program
Hi, I wonder where I can find an example of using a function in LAPACK library in a user's own C code. I wrote a C program which will be compiled and linked to produce a DLL file and then loaded into R. I hope to use a function from LAPACK library, for example, dgesdd, in the program. Following R manual, I call the function by F77_CALL(dgesdd) in the program. The program can be compiled
2009 Jun 17
1
Inverting a square matrix using solve() with LAPACK=TRUE (PR#13762)
Full_Name: Ravi Varadhan Version: 2.8.1 OS: Windows Submission from: (NULL) (162.129.251.19) Inverting a matrix with solve(), but using LAPACK=TRUE, gives erroneous results: Here is an example: hilbert <- function(n) { i <- 1:n; 1 / outer(i - 1, i, "+") } h5 <- hilbert(5) hinv1 <- solve(qr(h5)) hinv2 <- solve(qr(h5, LAPACK=TRUE)) all.equal(hinv1, hinv2) #
2019 May 06
0
R problems with lapack with gfortran
On 5/6/19 12:57 PM, Janne Blomqvist wrote: > On Mon, May 6, 2019 at 11:55 AM Tomas Kalibera <tomas.kalibera at gmail.com> wrote: >> On 5/4/19 6:49 PM, Steve Kargl wrote: >>> On Sat, May 04, 2019 at 06:42:47PM +0200, Thomas K?nig wrote: >>>>> - figure out Fortran2003 specification for C/Fortran interoperability >>>>> -- this _sounds_ like the
2009 Jun 18
0
Inverting a square matrix using solve() with LAPACK=TRUE (PR#13765)
rvaradhan at jhmi.edu wrote: > Full_Name: Ravi Varadhan > Version: 2.8.1 > OS: Windows > Submission from: (NULL) (162.129.251.19) > > > Inverting a matrix with solve(), but using LAPACK=TRUE, gives erroneous > results: Thanks, but there seems to be a much easier fix. Inside coef.qr, we have coef[qr$pivot, ] <- .Call("qr_coef_real", qr, y, PACKAGE =
2010 Jan 06
0
lapack problem on Linux fedora 11
I need your help to make R works on my linux box, runing fedora 11. Few things on the machine and steps I did: 1. uname -a shows: Linux bagvapp 2.6.29.4-167.fc11.i586 #1 SMP Wed May 27 17:14:37 EDT 2009 i686 athlon i386 GNU/Linux 2. it has a gcc (version 4.4) RedHat's build 3. the g77 comes with the box does not work (R's configure tells it could not compile simple fortran code); so
2018 Mar 26
0
R Lapack – why a subset?
I'm not too happy with this either, but I believe the reason is that there would be a significant extra maintenance burden consisting of things that is not being used by R itself. In particular, complex math routines are little used and have historically caused a number of issues with correct argument and return-value passing. Notice that it is a bit of a can of worms involving matching up C
2019 May 06
0
R problems with lapack with gfortran
On 5/4/19 6:49 PM, Steve Kargl wrote: > On Sat, May 04, 2019 at 06:42:47PM +0200, Thomas K?nig wrote: >>> - figure out Fortran2003 specification for C/Fortran interoperability >>> -- this _sounds_ like the right solution, but I don't think many >>> understand how to use it and what is implied (in particular, will >>> it require making changes to LAPACK
2008 Sep 10
0
Trouble compiling R with self-compiled LAPACK/ATLAS under Linux
Hello, I just had a lot of trouble compiling a version of R which uses a recently-compiled version of ATLAS and LAPACK. ATLAS and LAPACK compiled correctly and installed fine and passed all of their checks (and yes, I did compile them all with -fPIC as is required for R). This was my initial configure line: ./configure --with-x --enable-threads=posix --with-blas="-L/usr/local/lib
2018 Mar 26
1
R Lapack – why a subset?
Peter, Is there not already a significant maintenance burden from cherry-picking routines? From my own experience (https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16482 <https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16482>) this is a painful process. And while users may not call these complex routines directly, R is often used as a front-end for libraries that do, so
2008 Aug 22
1
Linking With External Lapack: Segfault
Hello All, I have been trying to figure out on linking R with an external lapack. Even though the R-admin recommends against doing so, our requirements force us to link it to an external lapack. I am running configure with the following parameter. *./configure --with-lapack="-L/usr/lib -llapack -lcblas" * The above seems to be having NO effect. However, later I tried
2003 Apr 28
1
qr(x,LAPACK=TRUE) (PR#2867)
Hi, I think there is a problem with the LAPACK version of qr() in version 1.7.0. (version below). 1. The documentation states that LAPACK=TRUE is the default, but the code has LAPACK=FALSE. 2. With LAPACK=TRUE qr() is never pivoting, even in cases where it very clearly should be. e.g. set.seed(0) X<-matrix(rnorm(40),10,4);X[,1]<-X[,2] qrx<-qr(X,LAPACK=TRUE) qrx$pivot # note, no
2009 Jun 26
0
ready to toss the towel | lapack and 2.9.0
Well, I've now tried just about every permutation I can think of - including using the ATLAS lapack (instead of generic), in various combinations with ACML, or generic BLAS, or ATLAS blas. No matter what I do, so long as I have lapack of any flavour, I get the 'stats error' with make check. And, it always seems to throw the error at the same point in the stats test file (an svd in
2004 Mar 26
0
SUMMARY: Using R's LAPACK & Related files in Visual C++
The following were the replies to my question about using R's LAPACK and other .h files in some of my C programs. From what was said, it appears that buying a ready-made library (MKL = $200, for example) or using CLapack according to the Shumway lecture notes are the best approaches: -------------------------------- >From Andy Liaw: (1) If you just want linear algebra routines in your C
2009 Dec 24
1
lapack error on Redhat Linux Fedora 11
Hi, The following errors occurs when I run the nlme's example: ------------------------------------------------------------------ Error in chol.default((value + t(value))/2) : lapack routines cannot be loaded In addition: Warning message: In chol.default((value + t(value))/2) : unable to load shared library '/usr/local/lib/R/modules//lapack.so':
2008 Oct 07
1
Lapack: SSYEV routine
Hi everyone, I am interested in using the SSYEV Lapack subroutine in a R package. Unfortunately I am not familiar with the all Lapack library and I was wondering why the routine SSYEV is not part of the R-LAPACK interface module. Is there any plan to extend the R-Lapack module in the next R release? Should I try to directly call the SSYEV routine of the external Lapack library from my R
2019 May 04
0
R problems with lapack with gfortran
Hi Peter, we (the gfortran team) are currently discussing this at https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90329 . I invite everybody who has an interest in this topic to take part in the discussion there. > Workarounds/solutions include: > > - disable certain optimizations -- works for now, but doesn't remove the root cause so seems generally fragile That looks like a
2009 Mar 25
2
Listing of LAPACK error codes
Professor Ripley commented on LAPACK error codes: https://stat.ethz.ch/pipermail/r-help/2007-March/127702.html and says "Internal LAPACK errors are usually problems with arithmetic accuracy, and as such are compiler- and CPU-specific." Is there a listing for the error codes from Lapack routine 'dsyevr'? Especially I am interested about the meaning and handling of error codes 1