topic Re: MKL Sparse Solver and maximum number of unknowns in Intel® oneAPI Math Kernel Library https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-Sparse-Solver-and-maximum-number-of-unknowns/m-p/869245#M8312 I use MKL for finite element work as well. The amount of memory needed is dependent on the sparse structure of the matrix, not necessarily the number of unknowns. <BR /> <BR />As an alternative to MKL, I would suggest also looking at TAUCS for an out-of-core sparse solver for positive definite symmetric matrices. I have used that on problems that use far more than 2G. <BR /> Tue, 01 May 2007 21:46:19 GMT AndrewC 2007-05-01T21:46:19Z MKL Sparse Solver and maximum number of unknowns https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-Sparse-Solver-and-maximum-number-of-unknowns/m-p/869244#M8311 <P>Hi,</P> <P>I have been using MKL for its sparse solver capabilities. My code is a finite element analysis solver. My code solves piezoelectric problems. Each element has 20 nodes and each node has 4 degrees of freedom. If am looking at a 10,000 element problem we are looking at (20*10000*4) 800K number of unknowns. </P> <P>I am running in Windows 32 bit application so I am limited to the 2 Gigs limit imposed by Microsoft. Based on this limit what is the maximum number of unknowns (degrees of freedom) I can solve for using the MKL sparse solver, anyone looked at this?</P> <P>Any help on this will be greatly appreciated.</P> <P>Marcias Martinez</P> <P></P> Fri, 13 Apr 2007 17:18:39 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-Sparse-Solver-and-maximum-number-of-unknowns/m-p/869244#M8311 marcias_martinez 2007-04-13T17:18:39Z Re: MKL Sparse Solver and maximum number of unknowns https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-Sparse-Solver-and-maximum-number-of-unknowns/m-p/869245#M8312 I use MKL for finite element work as well. The amount of memory needed is dependent on the sparse structure of the matrix, not necessarily the number of unknowns. <BR /> <BR />As an alternative to MKL, I would suggest also looking at TAUCS for an out-of-core sparse solver for positive definite symmetric matrices. I have used that on problems that use far more than 2G. <BR /> Tue, 01 May 2007 21:46:19 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/MKL-Sparse-Solver-and-maximum-number-of-unknowns/m-p/869245#M8312 AndrewC 2007-05-01T21:46:19Z