I'm trying to implement efficient matrix LLT (or LU, whatever) decomposition for some covariance matrix shenanigans. I've been using the Eigen librar ...

With numpy, what is the fastest way to compute one solution to an underdetermined linear system? I don't care which solution the method would return, ...

The simple program below makes a call to polyfit to find the best line through the data points. `` The program compiles, but fails with 32 linker ...

I need to compute the eigenvalues of a symmetric matrix M = v ⊗ v, where v is a known, one dimensional, array (a vector) and ⊗ denotes the outer pro ...

I want to create a large array of random numbers drawn from the gaussian distribution. I found dlarnv, but I am not sure how to use it in Swift. Speci ...

I am working on software that uses the Intel MKL implementation of LAPACK functions for eigenvalue problems. When I ran Valgrind to check the code for ...

One of the core operations of my code is sum of N velocity fields, each one weighted by a gaussian random variable, into a single velocity field. In L ...

So, I am using spark 3.1.3 on standalone mode with 16 workers I have done all the necessary steps described in the Spark documentation but the native ...

I'm thinking of performing some calculations with Intel-MKL, specifically the matrix-vector Sparse BLAS functions for a program in Fortran. I can exp ...

I'm trying to use LAPACK in a Fortran project, but I can't get CMake to find my LAPACK dll. I have very little experience with Fortran, Cmake and link ...

I have program (in fortran) where I'm using three custom modules, which make use of LAPACK. Until now I've compiled my program using the following she ...

I'm trying to compile my OpenACC parallel C++ program that makes use of dgemm (BLAS) and dgesvd (LAPACK) functions. I'm trying to compile the program ...

Let's say I want to diagonalize a complex non-Hermitian matrix of the form H = H0 + iV, where H0 and V are Hermitian matrices. Let R and L are matrice ...

I want to diagonalize a matrix and then be able to do basis changes. The aim in the end is to do matrix exponentiation, with exp(A) = P.exp(D).P^{-1}. ...

I want to compute the eigenvalues and eigenvectors of a matrix. I'm using sgeev of MKL lapack. I have this very simple test code: It gives the rig ...

Suppose we have a Hermitian matrix A that is known to have an inverse. I know that ZGETRF and ZGETRI subroutines in LAPACK library can compute the in ...

I would like to use BLAS for finding the solution of an equation structured AX = B, and X is to be solved. The Matrix A is of shape m x 4, B is of th ...

Do you need a Fortran compiler in your machine to have Matlab work? I read that "Linear algebra functions and matrix operations in MATLAB® are built ...

I used a docker container on M1 MacBook Pro with ubuntu 18.04 and ran a C program. In the main function I call ilaenv to check the block size for LAPA ...

I am coding a fortran 90 subroutine that calls the lapack function zgesvd. Unfortunately I get this error: The minimal code containing the subrouti ...