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1 answer
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Assign and print the results of CHOLMOD package

I am trying to solve a simple working example, a linear system $Ax=b$, where $A$ is sparse SPD and $b$ is dense, using CHOLMOD. ...
Ponyboy Curtis's user avatar
2 votes
3 answers
269 views

C standard for computational science

Which C standard should be used for computational science code ? Should we keep compatibility with C89/90/ANSI or jump to C99 or C11 ? Context: Code will use third-party : BLAS, LAPACK, MKL, ...
Johann MARTINET's user avatar
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2 answers
312 views

CHOLMOD implementation

I am working on a domain decomposition code in C that uses CHOLMOD to approximate grid values for a PDE in each sub-domain. The issue I have is that the methods use Matrix Market format, which is not ...
user20973's user avatar
1 vote
1 answer
587 views

Linear solve using CHLOMOD in C

I am using the open-source CHLOMOD (as here http://faculty.cse.tamu.edu/davis/suitesparse.html) in order to solve a linear system Ax=b (performing A/b=x) in my domain decomposition code but I am ...
user20973's user avatar
0 votes
1 answer
129 views

solver linear system equation

I need to solve to solve a "large" symmetric sparse linear systems, with matrix size 8000? I heard about HSL, ITPACK, but I don't know how to use them, and I am working in C language.
ahmed baba's user avatar
0 votes
1 answer
668 views

Fastest linear solver for sparse positive semidefinite, striclty diagonally dominant matrix

What is the state of the art for fastest linear solver for sparse, positive semi definite and strictly diagonally dominant matrix with N varies from ~700 to ~3000, and about a 1/16 of the matrix is ...
rursw1's user avatar
  • 93
1 vote
2 answers
868 views

What sparse solver supports diagonal storage format

I'm writing finite-difference method program using C. The stiffness matrix is symmetrical and band. For its storage I'd like to use Sparse Diagonal Storage format. Could someone tell please, what ...
Ivan Kush's user avatar
  • 155