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Search found 25 results on 1 pages for 'lapack'.

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• Linking LAPACK/BLAS libraries

  - by Daniel Bremberg

  Background: I am working on a project written in a mix of C and Fortran 77 and now need to link the LAPACK/BLAS libraries to the project (all in a Linux environment). The LAPACK in question is version 3.2.1 (including BLAS) from netlib.org. The libraries were compiled using the top level Makefile (make lapacklib and make blaslib). Problem: During…

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• How To: Referencing LAPACK library from FORTRAN 95 in Cygwin

  - by cholmgreen

  I have a FORTRAN 95 program that needs to make some calls to the LAPACK library. I recently found out that Cygwin because it can install LAPACK as an extra option. Well, LAPACK exists in the /lib/lapack/ directory as "cyglapack.dll". Having only a very informal training in Fortran programming, I have no idea how to reference a .dll library as…

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• Error at lapack cgesv when matrix is not singular

  - by Jan Malec

  This is my first post. I usually ask classmates for help, but they have a lot of work now and I'm too desperate to figure this out on my own :). I am working on a project for school and I have come to a point where I need to solve a system of linear equations with complex numbers. I have decided to call lapack routine "cgesv" from c++. I use…

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• F# 1.9.9.9 and lapack

  - by ahala

  can anyone help me with example on using lapack with latest f#? Or it is not recommended for now? I searched and only find http://fdatamining.blogspot.com/ but was not able to get FSharp.PowerPack.Math.Providers.dll compiled. thanks,

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• What is BLAS DGEMV error code -6 mean?

  - by Halpo

  I have a program that runs through R but uses the BLAS routines. It runs through correctly about 8 times but then throws an error BLAS/LAPACK routine 'DGEMV ' gave error code -6 What does this error code mean. I cant find the answer online but I'm sure there is someone here that knows it.

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• Efficient algorithm for finding largest eigenpair of small general complex matrix

  - by mklassen

  I am looking for an efficient algorithm to find the largest eigenpair of a small, general (non-square, non-sparse, non-symmetric), complex matrix, A, of size m x n. By small I mean m and n is typically between 4 and 64 and usually around 16, but with m not equal to n. This problem is straight forward to solve with the general LAPACK SVD…

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• mystified by qr.Q(): what is an orthonormal matrix in "compact" form?

  - by gappy

  R has a qr() function, which performs QR decomposition using either LINPACK or LAPACK (in my experience, the latter is 5% faster). The main object returned is a matrix "qr" that contains in the upper triangular matrix R (i.e. R=qr[upper.tri(qr)]). So far so good. The lower triangular part of qr contains Q "in compact form". One can…

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• QR Factorization Discrepancy

  - by KyleSum

  I'm trying to get a feel for the Intel MKL library with a simple back-solve (A*x = b) using a QR factorization and comparing my MKL answer to the answer of a known working solution. When my answers didn't come up correct I printed a diff between the Q and R matrices of the known working and the MKL test code. I know MKL/lapack…

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• Efficient process SQL Server and numerical methods library

  - by darkcminor

  Is there a way to comunicate a numeric method library, that can exploit all .net's (numerical methods called by .net that does SQL Server things) habilities?, What library do you recomend, maybe using MATLAB, R? How to comunicate SQL Server and .net with such library or libraries? Do you have an example? What steps must be…

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• How to solve linker error in matrix multiplication in c using lapack library?

  - by Malar

  I did Matrix multiplication using lapack library, I am getting an error like below. Can any one help me? "error LNK2019: unresolved external symbol "void __cdecl dgemm(char,char,int *,int *,int *,double *,double *,int *,double *,int *,double *,double *,int *)" (?dgemm@@YAXDDPAH00PAN1010110@Z) referenced in function _main"…

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• How to install Lapack and atlas on ubuntu intrepid?

  - by Peter

  I have installed Ubuntu 8.10. I am using python 2.6.4. I want to install the following package along with its dependencies. scipy 0.7.1 I am getting some error related to ATLAS. How do I install ATLAS?

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• Compiling old versions of R (2.11 or older) on Ubuntu 13.10 (or newer)?

  - by user283293

  I am trying to compile an old version of R (2.11.1, specifically). "Why?", you might ask. Well, I have a program I am trying to run (that was not written by me, but I am hoping to use in my research) that was written in "old" R, and the program writer has specifically mentioned that R-2.11.1 or older must be used. I…

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• Building ATLAS (and later Octave w/ ATLAS)

  - by David Parks

  I'm trying to set up ATLAS (so I can later compile octave with ATLAS support). If I'm correct, I still need to build this manually due to the environment specific optimizations. I do see a package for ATLAS, but it looks like it's using the cross platform generic build options (e.g. "it'll be slow"). So, running the…

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• NET Math Libraries

  - by JoshReuben

  NET Mathematical Libraries   .NET Builder for Matlab The MathWorks Inc. - http://www.mathworks.com/products/netbuilder/ MATLAB Builder NE generates MATLAB based .NET and COM components royalty-free deployment creates the components by encrypting MATLAB…

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• Installing Numpy locally

  - by Néstor

  I posted this question originally on StackOverflow, but a user suggested I moved it here so here I go! I have an account in a remote computer without root permissions and I needed to install a local version of Python (the remote computer has a version of Python that is incompatible with some codes I have),…

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• What's the right way to utilize ARM SIMD on iPhone for Game vector/matrix operation?

  - by Eonil

  I'm making an vector/matrix library for Game which utilizes SIMD unit on iPhone (3GS or later). How can I do this? I searched about this, now I know several options: Accelerate framework (BLAS+LAPACK+...) from Apple (iPhone OS 4) OpenMAX implementation library from ARM GCC auto-vectorization feature …

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• Is there a way to communicate DBMS with raw memory block or binaries

  - by darkcminor

  I am trying to communicate a numerical matrix operations library like LAPACK with any DBMS. Is it possible to send/receive complete matrices as binary or as a direct memory pointers to process them (it will be something like: The Outside library processes data stored in DBMS, then it computes some huge…

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• CodePlex Daily Summary for Friday, May 18, 2012

  CodePlex Daily Summary for Friday, May 18, 2012Popular ReleasesMSP Toolkit: MSP Toolkit 1.5.18: Func StringToTextBlock renamed to StringToTextBlockWithTransform Func UriToImage renamed to UriToImageWithTransform GenerateTile (message overload). Removed imageFormat parameter GenerateTile (message…

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• Dependency Walker Not Showing All the Depended Dll

  - by Ngu Soon Hui

  I have a fortran dll, and I want to know the assemblies that it depends on for redistribution purpose. One thing I found out is that the dependency walker doesn't show all of the dependencies, i.e, there are some dlls that my assembly is dependent on, but dependency walker doesn't show it out. An…

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• How to use numpy with OpenBLAS instead of Atlas in Ubuntu?

  - by pierotiste

  I have looked for an easy way to install/compile Numpy with OpenBLAS but didn't find an easy answer. All the documentation I have seen takes too much knowledge as granted for someone like me who is not used to compile software. There are two packages in Ubuntu related to OpenBLAS : libopenblas-base…

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• Matrix inversion in OpenCL

  - by buchtak

  Hi, I am trying to accelerate some computations using OpenCL and part of the algorithm consists of inverting a matrix. Is there any open-source library or freely available code to compute lu factorization (lapack dgetrf and dgetri) of matrix or general inversion written in OpenCL or CUDA? The…

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• How to determine what the Seemingly Unrelated Regression error means in R

  - by user2154571

  I'm using the systemfit() function to conduct a seemingly unrelated regression and am getting the following error: Error in solve(sigma, tol = solvetol) : Lapack routine dsptrf returned error code 1 Yet, I'm unable to find the meaningful interpretation of what the error suggests is going…

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• Compiling OpenCV in Android NDK

  - by evident

  PLEASE SEE THE ADDITIONS AT THE BOTTOM! The first problem is solved in Linux, not under Windows and Cygwin yet, but there is a new problem. Please see below! I am currently trying to compile OpenCV for Android NDK so that I can use it in my apps. For this I tried to follow this guide: …

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• CodePlex Daily Summary for Wednesday, June 29, 2011

  CodePlex Daily Summary for Wednesday, June 29, 2011Popular ReleasesCandescent NUI: Candescent NUI (8263): This is the binary version of the source code in change set 8263.Coding4Fun Tools: Coding4Fun.Phone.Toolkit v1.4.4: Fix for http://coding4fun.codeplex.com/workitem/6869 was…

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• CodePlex Daily Summary for Tuesday, November 23, 2010

  CodePlex Daily Summary for Tuesday, November 23, 2010Popular ReleasesSilverlight and WP7 Exception Handling and Logging building block: first version: Zipped full source code.Wii Backup Fusion: Wii Backup Fusion 0.8.2 Beta: New in this release: - Update titles after language…

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