analysis on dense2csr created sparse matrix problem

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi,

I have a problem solving a linear system that was generated using dense2csr. On the
analysis phase it drops out with an internal error. I can’t really see what I’m doing
wrong here so I need the help from you experts.

The code was compiled using g++ 4.3, cuda toolkit 4.0 rc on linux running 270.30
nvidia beta drivers. The analysis phase (cusparseScsrsv_analysis) works when the
matrix was converted using coo2csr (not included in test code). I also downloaded
and check the matrix after dense2csr and the csr values are equal to the dense matrix
values. Also, cuda-memcheck shows no errors.

Thanks Gregor

2

still haven’t found the problem. can somebody please verify the code of the original post!
hasen’t anybody used dense2csr? no sparse matrix users here?

thanks gregor

3

You can write your own conversion routine, incase the dense2csr is giving wrong answers.!