I am trying to solve Ax=b with Cholmod supernodal solver in Eigen libary c++ based project (I am calling cholmod via Eigen) , A is a sparse matrix wit ...
following from my question I would like to follow up and calculate the Q matrix in an (memory) efficient way from the output of the spqr procedure. Up ...
I've downloaded the .zip for SuiteSparse from the following GitHub. I'm trying to install/compile the C/C++ libraries in Ubuntu. I'm using the Windows ...
In C++ interface of SuiteSparse, I can use to calculate QR decomposition of matrix A so that I can reuse QR for further calculation. But I wonder ...
I am testing out cholmod to solve a sparse matrix system. As b of the Ax=b equation I want to use something that will lead to a known result, so I cho ...
I would like to use CHOLMOD's GPU acceleration, and have found several simple examples on how to use the library for Cholesky decomposition. However a ...
I used Visual C++ 2015. I received the following errors when I tried to build my g2o sample code. About 172 errors are relative to LNK2001 and LNK2 ...
The basic aim of my question is how to achieve the best performance of matrix operations in R using Matrix package. In particular I want to paralleliz ...
It is the first time I deal with column-compress storage (CCS) format to store matrices. After googling a bit, if I am right, in a matrix having n non ...
I have a cholmod_dense data structure: cholmod_dense* ex = cholmod_l_solve(CHOLMOD_A, L, B, &com); and I want to extract the values and copy the ...
I am currently working on a project where we need to solve |Ax - b|^2. In this case, A is a very sparse matrix and A'A has at most 5 nonzero element ...
I have installed brew on OSX and I have installed successfully several things. However when I try to install suite-sparse421 (hard constraint on the ...
I am trying to use SuiteSparse SPQR to solve a linear equation system x = A\b; my A matrix is sparse and it is a rectangular matrix so I chose SPQR to ...
I am trying to solve a linear equation system x = A\b, using CXSparse library by Tim Davis (http://faculty.cse.tamu.edu/davis/suitesparse.html). I dev ...
I am trying to use CHOLMOD with CUDA acceleration in SuiteSparse 4.4.4. I compiled it according to the user guide and I could run gpu.sh under Demo fo ...
I need to solve a sparse linear system in Matalab using the QR solver of SuiteSparse. How can I choose it? I know that, depending on the matrix struct ...
I'm trying to compile library https://github.com/PetterS/SuiteSparse/tree/master/CSparse with MinGW on Windows 7. Makefile contents: I'im typing i ...
How can I multiply by the cholmod_factor L in a supernodal L L^T factorisation? I'd prefer not to convert to simplicial since the supernodal represent ...
I am using SuiteSparse @4.2.1_3 installed via macports and want to allocate a cholmod_dense structure. Consider the following piece of code: I get ...
I am using CHOLMOD in SuiteSparse to factor an N by N large band-diagonal matrix that is relatively sparse, ie, it contains only a few diagonals that ...