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Questions tagged [arpack]

ARPACK is a package for solving large scale eigen value problems. Question tagged arpack relate to usage of this library, linking with it and compiling code using its subroutines.

ARPACK is a collection of Fortran77 subroutines designed to solve large scale eigenvalue problems.

For more information, see ARPACK's website

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specClust() in kknn - arpack iteration limit increase

I am applying spectral clustering to a dataset with 4200 rows and 2 columns. spec <- specClust(df1, centers=7, nn = 7, method = "symmetric") I have the below error. n .Call("R_igraph_arpack", func, extra, options, env, sym, PACKAGE = "igraph") :…
pranav nerurkar
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Linking library with gcc - ld: cannot find -larpack

I am installing software on a server with no root privileges. I come across the following error during installation: make[1]: *** [hgaprec] Error 1 make[1]: Leaving directory `/seq/.../SOFTWARE/hgaprec/src' make: *** [all-recursive] Error 1 Making…
user2998764
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"multiple definition of ..." using arpackpp

in my current project I´m working with the arpackpp interface. The entire library is written in .h files, so that there is no need to compile the library. The problem I'm facing now - when I include some of the arpackpp header files in some of my…
dimmigen
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calling fortran 77 from c for arpack

I'm trying to call the fortran function dsaupd from ARPACK. I used the C declaration from netlib-java extern void dsaupd_(int *ido, char *bmat, int *n, char *which, int *nev, double *tol, double *resid, …
AatG
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ARPACK is not compiling in Ubuntu 12.04

I have change the ARmake.inc file accordingly. The platform is changed into LINUX. Following is the the problem: root@sid-OptiPlex-7010:/home/sid/Downloads/ARPACK# make lib /bin/sh: 4: cd: can't cd to home/sid/Downloads/ARPACK/BLAS Making lib in…
Siddharth Ghosh
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ARPACK gives different answers from Matlab and NAG

I'm playing with ARPACK. I looked into the examples they provide, zndrv4.f, in the ARPACK/EXAMPLES/COMPLEX/ directory. I also came cross into NAG Fortran Library. In NAG, there are some linear problem solvers F12***. The F12*** routines in NAG are…
jengmge
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Calling the ARPACK reverse communicated matrix-vector routine

I'm trying to write a driver in C++ to calculate the eigenvalues for an asymmetric, real-valued sparse matrix using the fortran functions offered by ARPACK, but I am having a bit of trouble with the reverse communication approach. Generally, I am…
user3023621
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Number of iterations of scipy.sparse.linalg.eigs

Is it possible to find out how many iterations it took eigs/eigsh to converge?
Milan Hanus
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C++: Including libraries, multiple definitions (ARPACK++)

I'm currently trying to work with other C++ libraries like ARPACK++ and got trouble with multiple definitions within the include folder of ARPACK++. This is my compiling line which includes several libraries i need: g++ -g -Dlinux…
Log7
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How to use the eigs() function in octave 3.6.4 on Mac OS X

I am trying to use a toolbox which makes use of the Matlab's eigs() function. When I run this in Octave (3.6.4, installed via Homebrew on Mac OS X), the following is returned: error: eigs: not available in this version of Octave I have found a lot…
Roemer
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Link MinGW64 .o to MSVC 2010

How can I link object files produced with MinGW64 fortran (gfortran) compiler (.o) to MSVC 2010? I just want to use 64 bit arpack library with 64 bit MSVC solution, but all other ways to do it were unsuccessful. MSVC finds arpack functions with 32…
Dmitry K.
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arpack++ error:Matrix data contain inconsistencies

I typed the example code from the "arpackpp.doc", and got a run time error like this: here is my code: and the matrix is
Zero
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