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How to compile CHOLMOD library (SuiteSparse) from IDE

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问题 For some time I am trying to create a static CHOLMOD lib from SuiteSparse Each other library (f.ex. Umfpack) can be easiy compiled from IDE (I used Code::Blocks on Linux and Visual Studio on Windows). However when trying to compile CHOLMOD I get bunch of syntax errors like: t_cholmod_triplet.c(21): error C2061: syntax error : identifier 'TEMPLATE' I investigated that there are some #defines missing (like PATTERN, REAL defines) and therefore those definitions of TEMPLATE are invisible. I

Best way of solving sparse linear systems in C++ - GPU Possible?

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问题 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 elements in each row. We are working with images and the dimension of A'A is NxN where N is the number of pixels. In this case N = 76800 . We plan to go to RGB and then the dimension will be 3Nx3N . In matlab solving (A'A)\(A'b) takes about 0.15 s, using doubles. I have now done some experimenting with Eigens sparse solvers. I have tried: SimplicialLLT

Best way of solving sparse linear systems in C++ - GPU Possible?

阅读更多关于 Best way of solving sparse linear systems in C++ - GPU Possible?

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 elements in each row. We are working with images and the dimension of A'A is NxN where N is the number of pixels. In this case N = 76800 . We plan to go to RGB and then the dimension will be 3Nx3N . In matlab solving (A'A)\(A'b) takes about 0.15 s, using doubles. I have now done some experimenting with Eigens sparse solvers. I have tried: SimplicialLLT SimplicialLDLT SparseQR ConjugateGradient and some different orderings. The by far best so far is

Cannot use CHOLMOD with CUDA acceleration in my own code

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问题 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 folder successfully, which showed that the GPU was doing part of the work. However, when I tried to run my own code using CHOLMOD , I found that the number of GPU calls was always 0. I do set Common->useGPU to 1, and the environment variable CHOLMOD_USE_GPU is also set to 1. My Makefile is like the following. The library paths are correct. Any